fix(dogfood): k8s multi-resource YAML chunk_id collision (#158)

PR #158 code-reviewer recommendation. Records the dogfood-discovered
k8s multi-resource chunk_id collision + the deliberate decision NOT to
bump chunker_version (dogfood-only stage, single-resource k8s chunk_id
shift is benign churn). Cross-link added to p10-2 spec Risks/notes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Cargo.lock

@@ -4127,7 +4127,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-app"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "base64 0.22.1",
@@ -4172,22 +4172,24 @@ dependencies = [
 
 [[package]]
 name = "kebab-chunk"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
  "kebab-core",
  "kebab-normalize",
+ "kebab-parse-code",
  "kebab-parse-md",
  "serde_json",
  "serde_json_canonicalizer",
+ "serde_yaml",
  "time",
  "tracing",
 ]
 
 [[package]]
 name = "kebab-cli"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -4208,7 +4210,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-config"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "dirs 5.0.1",
@@ -4223,7 +4225,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-core"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4237,7 +4239,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-embed"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4251,7 +4253,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-embed-local"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "fastembed",
@@ -4264,7 +4266,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-eval"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-app",
@@ -4283,7 +4285,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-llm"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-core",
@@ -4292,7 +4294,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-llm-local"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-config",
@@ -4309,7 +4311,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-mcp"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-app",
@@ -4327,7 +4329,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-normalize"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-core",
@@ -4342,7 +4344,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-parse-code"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "gix",
@@ -4352,7 +4354,12 @@ dependencies = [
  "time",
  "tracing",
  "tree-sitter",
+ "tree-sitter-c",
+ "tree-sitter-cpp",
+ "tree-sitter-go",
+ "tree-sitter-java",
  "tree-sitter-javascript",
+ "tree-sitter-kotlin-ng",
  "tree-sitter-python",
  "tree-sitter-rust",
  "tree-sitter-typescript",
@@ -4360,7 +4367,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-parse-image"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "ab_glyph",
  "anyhow",
@@ -4384,7 +4391,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-parse-md"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "kebab-core",
@@ -4401,7 +4408,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-parse-pdf"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4414,7 +4421,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-parse-types"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "kebab-core",
  "serde",
@@ -4422,7 +4429,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-rag"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4443,7 +4450,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-search"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "globset",
@@ -4462,7 +4469,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-source-fs"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4481,7 +4488,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-store-sqlite"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "blake3",
@@ -4502,7 +4509,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-store-vector"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "arrow",
@@ -4526,7 +4533,7 @@ dependencies = [
 
 [[package]]
 name = "kebab-tui"
-version = "0.8.2"
+version = "0.16.1"
 dependencies = [
  "anyhow",
  "crossterm",
@@ -8527,6 +8534,46 @@ dependencies = [
  "tree-sitter-language",
 ]
 
+[[package]]
+name = "tree-sitter-c"
+version = "0.24.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9b2eb57a55fed6b00812912e730b7a275cf4fe98bfd6a5d76263d4438371728"
+dependencies = [
+ "cc",
+ "tree-sitter-language",
+]
+
+[[package]]
+name = "tree-sitter-cpp"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df2196ea9d47b4ab4a31b9297eaa5a5d19a0b121dceb9f118f6790ad0ab94743"
+dependencies = [
+ "cc",
+ "tree-sitter-language",
+]
+
+[[package]]
+name = "tree-sitter-go"
+version = "0.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8560a4d2f835cc0d4d2c2e03cbd0dde2f6114b43bc491164238d333e28b16ea"
+dependencies = [
+ "cc",
+ "tree-sitter-language",
+]
+
+[[package]]
+name = "tree-sitter-java"
+version = "0.23.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0aa6cbcdc8c679b214e616fd3300da67da0e492e066df01bcf5a5921a71e90d6"
+dependencies = [
+ "cc",
+ "tree-sitter-language",
+]
+
 [[package]]
 name = "tree-sitter-javascript"
 version = "0.25.0"
@@ -8537,6 +8584,16 @@ dependencies = [
  "tree-sitter-language",
 ]
 
+[[package]]
+name = "tree-sitter-kotlin-ng"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e800ebbda938acfbf224f4d2c34947a31994b1295ee6e819b65226c7b51b4450"
+dependencies = [
+ "cc",
+ "tree-sitter-language",
+]
+
 [[package]]
 name = "tree-sitter-language"
 version = "0.1.7"

Cargo.toml

@@ -31,7 +31,7 @@ edition       = "2024"
 rust-version  = "1.85"
 license       = "MIT OR Apache-2.0"
 repository    = "https://github.com/altair823/kebab"
-version       = "0.8.2"
+version       = "0.16.1"
 
 [workspace.dependencies]
 anyhow       = "1"
@@ -94,6 +94,14 @@ tree-sitter-rust = "0.24"
 tree-sitter-python     = "0.25.0"
 tree-sitter-typescript = "0.23.2"
 tree-sitter-javascript = "0.25.0"
+# Go grammar for code ingest (kebab-parse-code, p10-1C-Go).
+tree-sitter-go         = "0.25.0"
+# JVM family grammars for code ingest (kebab-parse-code, p10-1C-JK).
+tree-sitter-java       = "0.23.5"
+tree-sitter-kotlin-ng  = "1.1.0"   # bare tree-sitter-kotlin requires ts <0.23; -ng uses tree-sitter-language 0.1 (ts 0.26 compat)
+# C/C++ family grammars for code ingest (kebab-parse-code, p10-1D).
+tree-sitter-c         = "0.24.2"
+tree-sitter-cpp       = "0.23.4"
 
 # Disk-footprint trim for dev / test builds. Codegen, opt-level, and
 # behavior are unchanged — only DWARF debug info is reduced (line

HANDOFF.md

@@ -4,7 +4,7 @@
 
 ## 한 줄 요약
 
-P0–P5 + P6 + P7 + P9-1/2/3/4 (Library / Search / Ask / Inspect) 머지 완료. `kebab ingest` 가 markdown / image / PDF 모두 처리. `kebab search` / `kebab ask` 가 매체 가로질러 결과 + page citation 반환. `kebab tui` 가 4 패널 (Library + Search + Ask + Inspect) 제공 — 사용자가 `?` 로 ask, `/` 로 search, Library Enter / Search `i` 로 inspect, Search `g` 로 editor jump. 다음 후보 = P9-5 (desktop tauri) 또는 보류 중인 P8 (audio) 의 시스템 dep brainstorm.
+P0–P5 + P6 + P7 + P9-1/2/3/4 (Library / Search / Ask / Inspect) 머지 완료. `kebab ingest` 가 markdown / image / PDF / 소스코드 (Rust / Python / TS / JS / Go / Java / Kotlin) / Tier 2 리소스 파일 (yaml/k8s / dockerfile / toml / json / xml / groovy / go-mod) + Tier 3 paragraph fallback (shell / 비-k8s YAML / AST 실패 케이스) 처리. `kebab search` / `kebab ask` 가 매체 가로질러 결과 + page / code citation 반환. `kebab tui` 가 4 패널 (Library + Search + Ask + Inspect) 제공. P10-3 (Tier 3 paragraph fallback) 완료. P10-1D (C + C++) 완료로 Tier 1 chunker family 마무리 — 다음 후보 = P9-5 (desktop tauri) 또는 보류 중인 P8 (audio).
 
 ## Phase 로드맵
 
@@ -20,7 +20,7 @@ P0–P5 + P6 + P7 + P9-1/2/3/4 (Library / Search / Ask / Inspect) 머지 완료.
 | **P7** | PDF text + page citation | `kebab-parse-pdf` | P5 | ✅ 완료 (3/3 component, page-level chunker + ingest wiring) |
 | **P8** | 음성 transcription + timestamp citation | `kebab-parse-audio` | P5 | ⏸ 보류 (whisper-rs 시스템 dep brainstorm 필요) |
 | **P9** | TUI + desktop app | `kebab-tui`, `kebab-desktop` | P5 | 🟡 진행 (4/5 component — P9-1/2/3/4 완료 [Library / Search / Ask / Inspect], P9-5 desktop 예정 · 도그푸딩 피드백 **20/20 ✅**) |
-| **P10** | code ingest framework | `kebab-parse-code` | P5 | 🟡 진행 중 — 1A-1 ✅ (wire schema + parse-code skeleton + filter flags), 1A-2 ✅ (Rust AST chunker, tree-sitter-rust, `code-rust-ast-v1` — v0.7.0), **1B 🟡 PR 오픈** (Python `code-python-ast-v1` + TypeScript `code-ts-ast-v1` + JavaScript `code-js-ast-v1` — 3 언어 dogfooding 가능, v0.8.0 대기) |
+| **P10** | code ingest framework | `kebab-parse-code` | P5 | 🟡 진행 중 — 1A-1 ✅ (wire schema + parse-code skeleton + filter flags), 1A-2 ✅ (Rust AST chunker, `code-rust-ast-v1` — v0.7.0), 1B ✅ (Python/TS/JS AST chunkers — v0.8.0 이후), **1C-Go ✅ (Go AST chunker, `code-go-ast-v1` — v0.12.0)**, **1C-JavaKotlin ✅ (Java + Kotlin AST chunkers, `code-java-ast-v1` / `code-kotlin-ast-v1` — v0.13.0)**, **2 ✅ (Tier 2 resource-aware: yaml/k8s + dockerfile + manifest, `k8s-manifest-resource-v1` / `dockerfile-file-v1` / `manifest-file-v1` — v0.14.0)**, **3 ✅ (Tier 3 paragraph fallback: code-text-paragraph-v1 — v0.15.0)**, **1D ✅ (C + C++ AST chunkers, code-c-ast-v1 + code-cpp-ast-v1 — v0.16.0)** |
 
 P0~P5 직렬. P6~P9 P5 이후 병렬 가능.
 

README.md

@@ -34,7 +34,7 @@ cargo install --git https://gitea.altair823.xyz/altair823-org/kebab.git --bin ke
 
 업데이트는 `git pull && cargo install --path crates/kebab-cli --locked --force` 또는 git URL 형식의 경우 `cargo install --git ... --force`.
 
-제거는 `cargo uninstall kebab-cli`. 이 명령은 binary 만 지우고 워크스페이스 데이터는 그대로 남는다. 데이터까지 정리하려면 `kebab reset --all --yes` (config + data + cache + state 4 개 XDG 경로 모두 wipe — **irreversible**, 재시작 시 `kebab init` 다시 실행). 부분 wipe 는 `kebab reset --data-only` (config 보존), `kebab reset --vector-only` (Lance + `embedding_records` 만, 다음 ingest 가 re-embed) 등.
+제거는 `cargo uninstall kebab-cli`. 이 명령은 binary 만 지우고 워크스페이스 데이터는 그대로 남는다. 데이터까지 정리하려면 `kebab reset --all --yes` (config + data + cache + state 4 개 XDG 경로 모두 wipe — **irreversible**, 재시작 시 `kebab init` 다시 실행). 부분 wipe 는 `kebab reset --data-only` (config 보존), `kebab reset --vector-only` (Lance + `embedding_records` 만, 다음 ingest 가 re-embed), **`kebab reset --orphans-only`** (현재 walker scope 밖에 있는 stored doc 만 정리 — `config.workspace.include` 좁히거나 sub-dir 옮긴 후 explicit reconcile; fs 의 file 은 건드리지 않음) 등.
 
 ## Quick start
 
@@ -42,7 +42,7 @@ cargo install --git https://gitea.altair823.xyz/altair823-org/kebab.git --bin ke
 # 첫 실행 — XDG 경로에 데이터 디렉토리 + config.toml 생성
 kebab init
 
-# config 손보고 — workspace.root, 모델 endpoint 등 설정 (지원 형식: md / png / jpg / pdf / rs / py / ts / js)
+# config 손보고 — workspace.root, 모델 endpoint 등 설정 (지원 형식: md / png / jpg / pdf / rs / py / ts / js / go)
 ${EDITOR:-vi} ~/.config/kebab/config.toml
 
 # 색인 (Markdown / 이미지 / PDF 모두 한 번에)
@@ -70,7 +70,7 @@ kebab doctor
 | 명령 | 동작 |
 |------|------|
 | `kebab init` | XDG 경로에 데이터 디렉토리 + config.toml 생성 |
-| `kebab ingest [<path>]` | Markdown / 이미지 / PDF / Rust 소스코드 색인 (idempotent). TTY 에서는 stderr 진행 바, non-TTY (CI / pipe) 는 stderr 한 줄씩, `--json` 은 stdout 에 `ingest_progress.v1` 라인 streaming 후 마지막에 `ingest_report.v1`. Ctrl-C 한 번이면 현재 asset 마무리 후 abort (부분 commit 보존, idempotent re-run), 두 번째 Ctrl-C 는 hard exit. Markdown title 이 frontmatter 에 없어도 첫 H1 → H2 → 첫 paragraph 80 자 → 파일명 순으로 자동 채움 (parser_version `md-frontmatter-v2`) — 기존 색인된 doc 도 다음 ingest 에서 새 title 로 갱신. **Incremental** (p9-fb-23): 두 번째 이후의 ingest 는 변하지 않은 doc (blake3 + parser/chunker/embedder version 모두 동일) 의 parse/chunk/embed/vector upsert 를 자동 스킵. final summary 에 `N unchanged` 카운트 표시. `--force-reingest` 로 skip 무시 강제 재처리. **지원 형식** (extractor 자동 결정 — config 에 명시 불가): Markdown (`.md`), 이미지 (`.png` / `.jpg` / `.jpeg`, OCR + caption), PDF (`.pdf`), **소스코드** (`.rs` → `code-rust-ast-v1`, `.py` → `code-python-ast-v1`, `.ts`/`.tsx` → `code-ts-ast-v1`, `.js`/`.mjs`/`.cjs`/`.jsx` → `code-js-ast-v1` — 모두 tree-sitter AST chunker). 다른 확장자는 자동 skip — `IngestItem.warnings` 에 사유 (`"unsupported media type: .docx"` 등), `IngestReport.skipped_by_extension` 에 카운트 분류, CLI / TUI summary 에 breakdown 표시. 코드 chunk 는 `citation.kind = "code"` 에 `citation.lang = "<lang>"` + `symbol` + line range 를 담고, SearchHit top-level 에 `code_lang` + `repo` (`.git/` walk-up 의 디렉토리 이름) 가 backfill 됨. `--code-lang rust` / `--code-lang python` / `--code-lang typescript` / `--code-lang javascript` / `--media code` filter 로 언어별·코드 전용 검색 가능 (p10-1A-1 filter flags). Python symbol 은 workspace 경로 → dotted module path prefix (예: `kebab_eval.metrics.compute_mrr`), TS/JS symbol 은 slash-style module path prefix (예: `src/Foo.Foo.search`). |
+| `kebab ingest [<path>]` | Markdown / 이미지 / PDF / Rust 소스코드 색인 (idempotent). TTY 에서는 stderr 진행 바, non-TTY (CI / pipe) 는 stderr 한 줄씩, `--json` 은 stdout 에 `ingest_progress.v1` 라인 streaming 후 마지막에 `ingest_report.v1`. Ctrl-C 한 번이면 현재 asset 마무리 후 abort (부분 commit 보존, idempotent re-run), 두 번째 Ctrl-C 는 hard exit. Markdown title 이 frontmatter 에 없어도 첫 H1 → H2 → 첫 paragraph 80 자 → 파일명 순으로 자동 채움 (parser_version `md-frontmatter-v2`) — 기존 색인된 doc 도 다음 ingest 에서 새 title 로 갱신. **Incremental** (p9-fb-23): 두 번째 이후의 ingest 는 변하지 않은 doc (blake3 + parser/chunker/embedder version 모두 동일) 의 parse/chunk/embed/vector upsert 를 자동 스킵. final summary 에 `N unchanged` 카운트 표시. `--force-reingest` 로 skip 무시 강제 재처리. **지원 형식** (extractor 자동 결정 — config 에 명시 불가): Markdown (`.md`), 이미지 (`.png` / `.jpg` / `.jpeg`, OCR + caption), PDF (`.pdf`), **소스코드** (`.rs` → `code-rust-ast-v1`, `.py` → `code-python-ast-v1`, `.ts`/`.tsx` → `code-ts-ast-v1`, `.js`/`.mjs`/`.cjs`/`.jsx` → `code-js-ast-v1`, `.go` → `code-go-ast-v1`, `.java` → `code-java-ast-v1`, `.kt`/`.kts` → `code-kotlin-ast-v1`, `.c`/`.h` → `code-c-ast-v1`, `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx` → `code-cpp-ast-v1` — 모두 tree-sitter AST chunker; **Tier 2 리소스 파일**: `.yaml`/`.yml` → `k8s-manifest-resource-v1` (apiVersion+kind 파싱), `Dockerfile`/`Dockerfile.*`/`*.dockerfile` → `dockerfile-file-v1` (전체 파일), `Cargo.toml`/`pyproject.toml`/`.toml`/`package.json`/`tsconfig.json`/`.json`/`pom.xml`/`.xml`/`build.gradle`/`.gradle`/`go.mod` → `manifest-file-v1` (전체 파일) — yaml (k8s) / dockerfile / toml / json / xml / groovy / go-mod 지원); **Tier 3 paragraph fallback** (`.sh`/`.bash`/`.zsh` → `code-text-paragraph-v1`, blank-line paragraph split + 80-line/20-overlap line-window. Tier 1/2 가 0 chunk 또는 Err 시 자동 fallback — 비-k8s YAML 같은 케이스 picked up. symbol = None, lang 은 원본 보존.). 다른 확장자는 자동 skip — `IngestItem.warnings` 에 사유 (`"unsupported media type: .docx"` 등), `IngestReport.skipped_by_extension` 에 카운트 분류, CLI / TUI summary 에 breakdown 표시. 코드 chunk 는 `citation.kind = "code"` 에 `citation.lang = "<lang>"` + `symbol` + line range 를 담고, SearchHit top-level 에 `code_lang` + `repo` (`.git/` walk-up 의 디렉토리 이름) 가 backfill 됨. `--code-lang rust` / `--code-lang python` / `--code-lang typescript` / `--code-lang javascript` / `--code-lang go` / `--code-lang java` / `--code-lang kotlin` / `--code-lang yaml` / `--code-lang dockerfile` / `--code-lang toml` / `--code-lang json` / `--code-lang xml` / `--code-lang groovy` / `--code-lang go-mod` / `--code-lang shell` / `--code-lang c` / `--code-lang cpp` / `--media code` filter 로 언어별·코드 전용 검색 가능 (p10-1A-1 filter flags). Python symbol 은 workspace 경로 → dotted module path prefix (예: `kebab_eval.metrics.compute_mrr`), TS/JS symbol 은 slash-style module path prefix (예: `src/Foo.Foo.search`), Go symbol 은 `package.Func` / `package.(*Receiver).Method` 형식, Java / Kotlin symbol 은 `com.foo.Foo.bar` 형식 (패키지 + 클래스 + 메서드/필드). |
 | `kebab search --mode {lexical,vector,hybrid} "<query>" [--no-cache] [--max-tokens N] [--snippet-chars N] [--cursor <opaque>] [--tag T] [--lang L] [--path-glob G] [--trust-min LEVEL] [--media TYPE] [--ingested-after RFC3339] [--doc-id ID] [--trace] [--bulk] [--repo NAME ...] [--code-lang LIST]` | 검색. hybrid는 RRF fusion, citation 포함. 같은 process 안에서 동일 query (NFKC + trim + lowercase 정규화) 반복 시 in-process LRU 캐시 hit (capacity = `[search] cache_capacity`, default 256). `--no-cache` 로 강제 bypass — 디버깅용. ingest commit 발생 시 `kv['corpus_revision']` bump 으로 모든 entry 자동 stale. **`--max-tokens` / `--snippet-chars` / `--cursor` (p9-fb-34)** — agent budget controls. `--json` 출력은 `search_response.v1` wrapper (`{hits, next_cursor, truncated}`) — pre-fb-34 의 bare array 와 호환 안 됨. mismatched cursor → `error.v1.code = stale_cursor`. **filter flags (p9-fb-36):** `--tag` 는 반복 가능 flag (`--tag rust --tag async`) 로 OR 매칭, `--media` 는 `,` 구분 다중 값 OR 매칭, 나머지 flags 간은 AND 조합. `--trust-min` 은 `primary\|secondary\|generated` 중 하나 (해당 level 이상 포함). `--ingested-after` 는 RFC3339 UTC — 파싱 실패 시 `error.v1.code = config_invalid` (exit 2). `--media md` 는 `markdown` alias 로 정규화. 알 수 없는 `--media` 값은 무조건 empty hits (오류 아님). **`--trace` (p9-fb-37)** — `search_response.v1.trace` 에 lexical / vector pre-fusion 후보 + RRF union + per-stage timing (`lexical_ms` / `vector_ms` / `fusion_ms` / `total_ms`) 노출. trace 요청은 캐시 우회 (`--no-cache` 없이도 항상 cold). **`--bulk` (p9-fb-42)** — stdin ndjson 으로 N query 한 번에 실행. `--json` 면 stdout per-query ndjson (`bulk_search_item.v1`) + stderr summary (`bulk_summary: total=N succeeded=S failed=F`). Cap 100. agent 가 query decomposition 후 sub-query 일괄 실행 시 single round-trip — App instance 재사용으로 캐시 / embedder cold-start 비용 한 번만. Per-query failure 는 item 의 `error` (error.v1) 에 격리, 다른 query 계속 진행. **code corpus filters (p10-1A-1):** `--repo` 는 반복 가능 (`--repo kebab --repo other`) OR 매칭. `--code-lang` 는 반복 또는 comma 다중 값 (`--code-lang rust,python`), 알 수 없는 값은 빈 hits. `--media code` 는 Tier 1/2/3 모든 code chunk 포함. 1A-1 시점에서는 indexed 된 code chunk 가 없어 filter 가 항상 빈 결과 — 1A-2 (Rust AST chunker) 머지 이후 실효. |
 | `kebab list docs` | 색인된 문서 목록 |
 | `kebab inspect doc <id>` / `kebab inspect chunk <id>` | raw record 보기 |
@@ -132,7 +132,7 @@ flowchart TB
 
     subgraph Pipeline["도메인 + 파이프라인"]
         parse["parse-md / parse-pdf / parse-image / parse-code"]
-        chunker["chunker (md-heading-v1, pdf-page-v1, code-rust-ast-v1, code-python-ast-v1, code-ts-ast-v1, code-js-ast-v1)"]
+        chunker["chunker (md-heading-v1, pdf-page-v1, code-{rust,python,ts,js,go,java,kotlin,c,cpp}-ast-v1, k8s-manifest-resource-v1, dockerfile-file-v1, manifest-file-v1, code-text-paragraph-v1)"]
         embedder["embedder (fastembed multilingual-e5-large)"]
         retriever["retriever (lexical / vector / hybrid RRF)"]
         rag["RAG pipeline"]

crates/kebab-app/src/fetch.rs

@@ -189,10 +189,12 @@ fn fetch_span(
     // (markdown / note / paper / reference / inbox) is the *user-facing*
     // category, not the rendering format — the actual byte-level format
     // lives on the source `RawAsset.media_type`. Look it up via
-    // workspace_path (unique key per asset).
-    if let Some(asset) = <kebab_store_sqlite::SqliteStore as DocumentStore>::get_asset_by_workspace_path(
+    // doc.source_asset_id (PRIMARY KEY) so twin files (identical content
+    // at different paths) always read *this* document's own asset row,
+    // not whichever twin last wrote `assets.workspace_path`.
+    if let Some(asset) = <kebab_store_sqlite::SqliteStore as DocumentStore>::get_asset(
         &app.sqlite,
-        &doc.workspace_path,
+        &doc.source_asset_id,
     )? {
         if matches!(
             asset.media_type,

crates/kebab-app/src/lib.rs

@@ -39,7 +39,7 @@ use std::sync::Arc;
 use anyhow::{Context, anyhow};
 use serde::{Deserialize, Serialize};
 
-use kebab_chunk::{CodeJsAstV1Chunker, CodePythonAstV1Chunker, CodeRustAstV1Chunker, CodeTsAstV1Chunker, MdHeadingV1Chunker, PdfPageV1Chunker};
+use kebab_chunk::{CodeCAstV1Chunker, CodeCppAstV1Chunker, CodeGoAstV1Chunker, CodeJavaAstV1Chunker, CodeJsAstV1Chunker, CodeKotlinAstV1Chunker, CodePythonAstV1Chunker, CodeRustAstV1Chunker, CodeTextParagraphV1Chunker, CodeTsAstV1Chunker, DockerfileFileV1Chunker, K8sManifestResourceV1Chunker, ManifestFileV1Chunker, MdHeadingV1Chunker, PdfPageV1Chunker};
 use kebab_core::{
     Answer, Block, CanonicalDocument, Chunk, ChunkId, ChunkPolicy, ChunkerVersion, Chunker,
     DocFilter, DocSummary, DocumentId, DocumentStore, Embedder, EmbeddingInput,
@@ -50,7 +50,7 @@ use kebab_core::{
 use kebab_llm_local::OllamaLanguageModel;
 use kebab_normalize::build_canonical_document;
 use kebab_parse_image::{ImageExtractor, OllamaVisionOcr, apply_caption, apply_ocr};
-use kebab_parse_code::{JavascriptAstExtractor, PythonAstExtractor, RustAstExtractor, TypescriptAstExtractor};
+use kebab_parse_code::{CAstExtractor, CppAstExtractor, GoAstExtractor, JavaAstExtractor, JavascriptAstExtractor, KotlinAstExtractor, PythonAstExtractor, RustAstExtractor, TypescriptAstExtractor};
 use kebab_parse_pdf::PdfTextExtractor;
 use kebab_parse_md::{BodyHints, parse_blocks, parse_frontmatter};
 use kebab_source_fs::FsSourceConnector;
@@ -71,7 +71,7 @@ mod staleness;
 
 pub use app::{App, SearchResponse};
 pub use ingest_progress::{AggregateCounts, IngestEvent, render_skipped_breakdown};
-pub use reset::{ResetReport, ResetScope};
+pub use reset::{ResetReport, ResetScope, enumerate_orphans};
 pub use error_wire::{ERROR_V1_ID, ErrorV1, StructuredError, classify};
 pub use fetch::fetch_with_config;
 #[doc(hidden)]
@@ -375,6 +375,28 @@ pub fn ingest_with_config_opts(
         .map(|d| d.doc_id.0)
         .collect();
 
+    // Dogfood: post-walker sweep to remove stored docs whose source
+    // file has been deleted from the filesystem. Must run BEFORE the
+    // per-asset loop so the loop's New/Updated labelling is based on
+    // the post-purge store state (the purged doc_ids won't be in
+    // `existing_doc_ids` above — they were already removed, OR the
+    // sweep here removes them before we start counting).
+    //
+    // Critical design invariant: only purge when the file is TRULY
+    // absent from disk. A file that is still on disk but outside the
+    // current walker scope (config narrowing / include-glob change) is
+    // NOT purged — we leave it in place to protect against accidental
+    // data loss via config edits.
+    let scanned_paths: std::collections::HashSet<kebab_core::WorkspacePath> = assets
+        .iter()
+        .map(|a| a.workspace_path.clone())
+        .collect();
+    let purged_deleted_files = sweep_deleted_files(
+        &app,
+        &scanned_paths,
+        vector_store.as_ref().map(|v| v.as_ref()),
+    )?;
+
     let started_at = time::OffsetDateTime::now_utc();
 
     let mut items: Vec<kebab_core::IngestItem> = Vec::new();
@@ -647,11 +669,11 @@ pub fn ingest_with_config_opts(
     crate::ingest_progress::emit(progress, terminal_event);
 
     // p9-fb-19: bump the persistent corpus_revision counter when a
-    // commit landed (any new / updated). This invalidates every
+    // commit landed (any new / updated / purged). This invalidates every
     // entry in any in-process LRU search cache (in this process or
     // a sibling) on the next lookup. No-op when nothing changed
     // (skipped-only run) — the cache stays valid.
-    if new_count > 0 || updated_count > 0 {
+    if new_count > 0 || updated_count > 0 || purged_deleted_files > 0 {
         match app.sqlite.bump_corpus_revision() {
             Ok(rev) => tracing::debug!(
                 target: "kebab-app",
@@ -682,6 +704,7 @@ pub fn ingest_with_config_opts(
         skipped_generated: fs_skips.skipped_generated,
         skipped_size_exceeded: fs_skips.skipped_size_exceeded,
         skip_examples: fs_skips.skip_examples,
+        purged_deleted_files,
         items: if summary_only { None } else { Some(items) },
     })
 }
@@ -748,15 +771,18 @@ struct ImagePipeline<'a> {
 /// hold (per design §9 cascade rule):
 ///
 /// 1. `force_reingest == false` — caller hasn't asked to bypass skip.
-/// 2. The freshly-scanned asset's blake3 checksum equals what the
-///    existing `assets` row stores at the same `workspace_path`.
-/// 3. The doc keyed on `(workspace_path, asset_id, current_parser_version)`
-///    exists. If the parser_version changed, `id_for_doc` produces a
-///    different `doc_id` so the lookup misses → no skip → re-process.
-/// 4. The existing doc's stamped `last_chunker_version` AND
-///    `last_embedding_version` match the values the caller is about
-///    to use (`Some(v) == Some(v)` and `None == None` — see design
-///    doc for the `None == None` rule when no embedder is configured).
+/// 2. A document already exists at this `workspace_path`
+///    (`get_document_by_workspace_path`). The lookup is document-side, not
+///    asset-side, so twin files (identical content at different paths) each
+///    hit their own stable doc row — `documents.workspace_path` is UNIQUE
+///    while `assets` may dedupe content into a single row with a flip-flop
+///    `workspace_path` column (dogfood bug #4, see `tasks/HOTFIXES.md`).
+/// 3. The existing doc's `source_asset_id` equals the freshly-scanned
+///    asset's blake3 checksum (content unchanged).
+/// 4. The existing doc's `parser_version` matches the current extractor's
+///    `parser_version` (extractor not upgraded). Combined with `chunker_version`
+///    and `last_embedding_version` checks immediately below — full cascade
+///    per design §9.
 ///
 /// Returns `Ok(None)` (proceed with full re-process) when any check
 /// fails or any DB read errors out — the skip path is opportunistic;
@@ -769,35 +795,24 @@ fn try_skip_unchanged(
     current_chunker_version: &ChunkerVersion,
     current_embedding_version: Option<&kebab_core::EmbeddingVersion>,
     force_reingest: bool,
+    fallback_chunker_version: Option<&ChunkerVersion>, // p10-3 fix
 ) -> anyhow::Result<Option<kebab_core::IngestItem>> {
     if force_reingest {
         return Ok(None);
     }
-    let existing_asset = match app
+    // Document-centric skip: look up the existing document row by
+    // workspace_path directly. This avoids the twin-file flip-flop
+    // that the old asset-side lookup suffers from — multiple files
+    // with identical content share one `assets` row whose
+    // `workspace_path` is overwritten on every UPSERT, so
+    // `get_asset_by_workspace_path(path1)` could return the OTHER
+    // twin's path (or None) after any ingest of the twin. The
+    // `documents` table has a UNIQUE index on `workspace_path` (V001),
+    // so each twin has its own stable row regardless of asset de-dup.
+    let existing_doc = match app
         .sqlite
-        .get_asset_by_workspace_path(&asset.workspace_path)
+        .get_document_by_workspace_path(&asset.workspace_path)
     {
-        Ok(Some(a)) => a,
-        Ok(None) => return Ok(None),
-        Err(e) => {
-            tracing::debug!(
-                target: "kebab-app",
-                path = %asset.workspace_path.0,
-                error = %e,
-                "skip-check: get_asset_by_workspace_path failed; falling through to re-process"
-            );
-            return Ok(None);
-        }
-    };
-    if existing_asset.checksum != asset.checksum {
-        return Ok(None);
-    }
-    let candidate_doc_id = kebab_core::id_for_doc(
-        &asset.workspace_path,
-        &asset.asset_id,
-        current_parser_version,
-    );
-    let existing_doc = match app.sqlite.get_document(&candidate_doc_id) {
         Ok(Some(d)) => d,
         Ok(None) => return Ok(None),
         Err(e) => {
@@ -805,21 +820,81 @@ fn try_skip_unchanged(
                 target: "kebab-app",
                 path = %asset.workspace_path.0,
                 error = %e,
-                "skip-check: get_document failed; falling through to re-process"
+                "skip-check: get_document_by_workspace_path failed; falling through to re-process"
             );
             return Ok(None);
         }
     };
+    // 1. Content unchanged: the freshly-computed asset_id (blake3
+    //    content hash) must match what this document was ingested from.
+    if existing_doc.source_asset_id != asset.asset_id {
+        return Ok(None);
+    }
+    // p10-3 fix: detect "stored doc was previously Tier 3 fallback".
+    // When a Tier 1/2 extractor emits empty chunks, the fallback wrapper
+    // retries with CodeTextParagraphV1Chunker and stores
+    // last_chunker_version = "code-text-paragraph-v1" + parser_version = "none-v1".
+    // On the next ingest the caller computes current_parser_version /
+    // current_chunker_version from the Tier 1/2 dispatch (e.g.
+    // "k8s-manifest-resource-v1"), which can never match the stored
+    // fallback values, causing spurious re-ingests. Detect this case
+    // and bypass the parser/chunker equality checks — only the embedder
+    // version still must match.
+    let stored_is_tier3_fallback = fallback_chunker_version.is_some_and(|fbv| {
+        existing_doc.last_chunker_version.as_ref() == Some(fbv)
+            && existing_doc.parser_version.0 == "none-v1"
+    });
+
+    if stored_is_tier3_fallback {
+        // Embedder version still must match.
+        let embedder_match = existing_doc.last_embedding_version.as_ref()
+            == current_embedding_version;
+        if !embedder_match {
+            return Ok(None);
+        }
+        let candidate_doc_id = existing_doc.doc_id.clone();
+        tracing::debug!(
+            target: "kebab-app::ingest",
+            path = %asset.workspace_path.0,
+            doc_id = %candidate_doc_id.0,
+            "skip-unchanged: tier 3 fallback state detected; bypassing parser/chunker equality"
+        );
+        return Ok(Some(kebab_core::IngestItem {
+            kind: kebab_core::IngestItemKind::Unchanged,
+            doc_id: Some(candidate_doc_id),
+            doc_path: asset.workspace_path.clone(),
+            asset_id: Some(asset.asset_id.clone()),
+            byte_len: Some(asset.byte_len),
+            block_count: u32::try_from(existing_doc.blocks.len()).ok(),
+            chunk_count: None,
+            parser_version: Some(existing_doc.parser_version.clone()),
+            chunker_version: existing_doc.last_chunker_version.clone(),
+            warnings: Vec::new(),
+            error: None,
+        }));
+    }
+
+    // 2. Parser unchanged: parser_version is baked into id_for_doc so
+    //    a version bump yields a different doc_id and the row above
+    //    would have been missing. Checking here explicitly keeps the
+    //    logic self-documenting and guards against future id_for_doc
+    //    changes.
+    if existing_doc.parser_version != *current_parser_version {
+        return Ok(None);
+    }
+    // 3. Chunker unchanged.
     let chunker_match = existing_doc.last_chunker_version.as_ref()
         == Some(current_chunker_version);
     if !chunker_match {
         return Ok(None);
     }
+    // 4. Embedder unchanged.
     let embedder_match = existing_doc.last_embedding_version.as_ref()
         == current_embedding_version;
     if !embedder_match {
         return Ok(None);
     }
+    let candidate_doc_id = existing_doc.doc_id.clone();
     tracing::debug!(
         target: "kebab-app::ingest",
         path = %asset.workspace_path.0,
@@ -918,9 +993,12 @@ fn ingest_one_asset(
                 force_reingest,
             );
         }
-        // p10-1A-2 / 1B: code ingest dispatch.
+        // p10-1A-2 / 1B: code ingest dispatch. p10-2: Tier 2 langs added. p10-3: shell added. p10-1D: c/cpp added.
         MediaType::Code(lang)
-            if matches!(lang.as_str(), "rust" | "python" | "typescript" | "javascript") =>
+            if matches!(lang.as_str(),
+                "rust" | "python" | "typescript" | "javascript" | "go" | "java" | "kotlin"
+                | "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod"
+                | "shell" | "c" | "cpp") =>
         {
             return ingest_one_code_asset(
                 app,
@@ -984,6 +1062,7 @@ fn ingest_one_asset(
         &MdHeadingV1Chunker.chunker_version(),
         embedder.map(|e| e.model_version()).as_ref(),
         force_reingest,
+        None,
     )? {
         return Ok(item);
     }
@@ -1178,6 +1257,7 @@ fn ingest_one_image_asset(
         &MdHeadingV1Chunker.chunker_version(),
         embedder.map(|e| e.model_version()).as_ref(),
         force_reingest,
+        None,
     )? {
         return Ok(item);
     }
@@ -1446,6 +1526,120 @@ fn purge_vector_orphans_for_workspace_path(
     Ok(())
 }
 
+/// Dogfood: post-walker sweep that purges stored documents whose source
+/// file has been physically deleted from the filesystem.
+///
+/// Algorithm:
+/// 1. Query `documents` for every `workspace_path` currently stored.
+/// 2. Compute `orphan_candidates = stored_paths - scanned_paths`.
+/// 3. For each candidate: resolve to an absolute path and call
+///    `Path::try_exists().unwrap_or(true)` — transient FS errors
+///    (EACCES, NFS hiccup, ownership change) conservatively count as
+///    "still present" so we never purge on uncertain signal. If the
+///    file still exists on disk it was merely out-of-scope this run
+///    (config narrowing / include-glob change) — leave it alone. Only
+///    files that are truly absent trigger a purge.
+/// 4. For absent files: call `purge_deleted_workspace_path` (SQLite
+///    cascade delete + optional copied-asset file removal) and, if a
+///    vector store is present, delete the associated vectors.
+///
+/// Returns the number of documents purged.
+///
+/// Non-fatal design: individual purge failures are logged and counted
+/// as errors on the per-file level but do NOT abort the sweep — a
+/// partial failure is preferable to blocking the rest of ingest. The
+/// return value only counts successful purges.
+fn sweep_deleted_files(
+    app: &App,
+    scanned_paths: &std::collections::HashSet<kebab_core::WorkspacePath>,
+    vector_store: Option<&kebab_store_vector::LanceVectorStore>,
+) -> anyhow::Result<u32> {
+    use kebab_core::DocumentStore as _;
+
+    let stored_paths = app
+        .sqlite
+        .all_workspace_paths()
+        .context("sweep_deleted_files: all_workspace_paths")?;
+
+    if stored_paths.is_empty() {
+        return Ok(0);
+    }
+
+    let workspace_root = app.config.resolve_workspace_root();
+    let mut purged: u32 = 0;
+
+    for stored_path in stored_paths {
+        if scanned_paths.contains(&stored_path) {
+            continue; // still in scope — skip
+        }
+
+        // Resolve to an absolute path and check existence on disk.
+        // Use `try_exists` + `unwrap_or(true)` so transient FS errors
+        // (EACCES on a path we lack read on, NFS hiccups, ownership
+        // change) are CONSERVATIVELY treated as "file still present" —
+        // never purge on uncertain signal (data-safety: PR #148 review).
+        // `exists()` would return false on Err and trigger a wrongful
+        // purge. Files whose path cannot be joined (theoretically
+        // impossible for non-empty workspace_path strings, but
+        // defense-in-depth) are likewise treated as still present.
+        let abs = workspace_root.join(&stored_path.0);
+        if abs.try_exists().unwrap_or(true) {
+            // File is on disk but not in this scan's scope (config
+            // narrowing). DO NOT purge — critical design constraint.
+            tracing::debug!(
+                target: "kebab-app",
+                path = %stored_path.0,
+                "sweep_deleted_files: file on disk but out of scope — leaving in store"
+            );
+            continue;
+        }
+
+        // File is truly absent → purge.
+        let chunk_ids = match kebab_store_sqlite::purge_deleted_workspace_path(
+            &app.sqlite,
+            &stored_path,
+        ) {
+            Ok(ids) => ids,
+            Err(e) => {
+                tracing::warn!(
+                    target: "kebab-app",
+                    path = %stored_path.0,
+                    error = %e,
+                    "sweep_deleted_files: purge failed; skipping this path"
+                );
+                continue;
+            }
+        };
+
+        // Purge associated vectors (best-effort; partial failure
+        // acceptable — orphan vectors get cleaned by `kebab reset
+        // --vector-only` if they accumulate).
+        if let Some(vec) = vector_store {
+            if !chunk_ids.is_empty() {
+                use kebab_core::VectorStore as _;
+                if let Err(e) = vec.delete_by_chunk_ids(&chunk_ids) {
+                    tracing::warn!(
+                        target: "kebab-app",
+                        path = %stored_path.0,
+                        count = chunk_ids.len(),
+                        error = %e,
+                        "sweep_deleted_files: vector delete failed; SQLite side already cleaned"
+                    );
+                }
+            }
+        }
+
+        tracing::info!(
+            target: "kebab-app",
+            path = %stored_path.0,
+            "sweep_deleted_files: purged document for deleted file"
+        );
+        purged = purged.saturating_add(1);
+    }
+
+    Ok(purged)
+}
+
 /// P7-3: process one `MediaType::Pdf` asset end-to-end.
 ///
 /// - Reads bytes from disk.
@@ -1510,6 +1704,7 @@ fn ingest_one_pdf_asset(
         &PdfPageV1Chunker.chunker_version(),
         embedder.map(|e| e.model_version()).as_ref(),
         force_reingest,
+        None,
     )? {
         return Ok(item);
     }
@@ -1683,18 +1878,54 @@ fn ingest_one_code_asset(
         "python"     => ParserVersion(kebab_parse_code::PYTHON_PARSER_VERSION.to_string()),
         "typescript" => ParserVersion(kebab_parse_code::TS_PARSER_VERSION.to_string()),
         "javascript" => ParserVersion(kebab_parse_code::JS_PARSER_VERSION.to_string()),
+        "go" => ParserVersion(kebab_parse_code::GO_PARSER_VERSION.to_string()),
+        "java" => ParserVersion(kebab_parse_code::JAVA_PARSER_VERSION.to_string()),
+        "kotlin" => ParserVersion(kebab_parse_code::KOTLIN_PARSER_VERSION.to_string()),
+        // p10-2: Tier 2 has no parse step — sentinel "none-v1".
+        "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod"
+            => ParserVersion("none-v1".to_string()),
+        // p10-3: shell direct routes to Tier 3 (no parse step).
+        "shell" => ParserVersion("none-v1".to_string()),
+        // p10-1D: C + C++ AST extractors.
+        "c"   => ParserVersion(kebab_parse_code::C_PARSER_VERSION.to_string()),
+        "cpp" => ParserVersion(kebab_parse_code::CPP_PARSER_VERSION.to_string()),
         other => anyhow::bail!("unsupported code_lang: {other}"),
     };
 
     // p10-1b Task D/G/J/L: chunker_version per-lang.
-    let chunker_version = match code_lang {
+    let mut chunker_version = match code_lang {
         "rust"       => CodeRustAstV1Chunker.chunker_version(),
         "python"     => CodePythonAstV1Chunker.chunker_version(),
         "typescript" => CodeTsAstV1Chunker.chunker_version(),
         "javascript" => CodeJsAstV1Chunker.chunker_version(),
+        "go" => CodeGoAstV1Chunker.chunker_version(),
+        "java" => CodeJavaAstV1Chunker.chunker_version(),
+        "kotlin"     => CodeKotlinAstV1Chunker.chunker_version(),
+        // p10-2 Tier 2:
+        "yaml"       => K8sManifestResourceV1Chunker.chunker_version(),
+        "dockerfile" => DockerfileFileV1Chunker.chunker_version(),
+        "toml" | "json" | "xml" | "groovy" | "go-mod"
+                     => ManifestFileV1Chunker.chunker_version(),
+        // p10-3:
+        "shell"      => CodeTextParagraphV1Chunker.chunker_version(),
+        // p10-1D: C + C++ AST chunkers.
+        "c"          => CodeCAstV1Chunker.chunker_version(),
+        "cpp"        => CodeCppAstV1Chunker.chunker_version(),
         other => anyhow::bail!("unreachable chunker_version: {other}"),
     };
 
+    // p10-3 fix: if this lang can fall back to Tier 3, compute the fallback
+    // chunker_version so try_skip_unchanged can detect the stored-as-Tier-3
+    // state and skip parser/chunker equality checks.
+    let tier3_fallback_cv: Option<ChunkerVersion> = match code_lang {
+        "rust" | "python" | "typescript" | "javascript"
+        | "go" | "java" | "kotlin"
+        | "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod"
+        | "c" | "cpp" // p10-1D
+            => Some(CodeTextParagraphV1Chunker.chunker_version()),
+        _ => None,
+    };
+
     if let Some(item) = try_skip_unchanged(
         app,
         asset,
@@ -1702,6 +1933,7 @@ fn ingest_one_code_asset(
         &chunker_version,
         embedder.map(|e| e.model_version()).as_ref(),
         force_reingest,
+        tier3_fallback_cv.as_ref(),
     )? {
         return Ok(item);
     }
@@ -1717,37 +1949,159 @@ fn ingest_one_code_asset(
     };
 
     // p10-1b Task D/G/J/L: extractor per-lang.
-    let mut canonical = match code_lang {
+    // p10-3: capture Result so Tier 1 extractor errors can fall back to Tier 3.
+    let canonical_result: anyhow::Result<kebab_core::CanonicalDocument> = match code_lang {
         "rust" => RustAstExtractor::new()
             .extract(&ctx, &bytes)
-            .context("kb-parse-code::RustAstExtractor::extract (code:rust)")?,
+            .context("kb-parse-code::RustAstExtractor::extract (code:rust)"),
         "python" => PythonAstExtractor::new()
             .extract(&ctx, &bytes)
-            .context("kb-parse-code::PythonAstExtractor::extract (code:python)")?,
+            .context("kb-parse-code::PythonAstExtractor::extract (code:python)"),
         "typescript" => TypescriptAstExtractor::new()
             .extract(&ctx, &bytes)
-            .context("kb-parse-code::TypescriptAstExtractor::extract (code:typescript)")?,
+            .context("kb-parse-code::TypescriptAstExtractor::extract (code:typescript)"),
         "javascript" => JavascriptAstExtractor::new()
             .extract(&ctx, &bytes)
-            .context("kb-parse-code::JavascriptAstExtractor::extract (code:javascript)")?,
+            .context("kb-parse-code::JavascriptAstExtractor::extract (code:javascript)"),
+        "go" => GoAstExtractor::new()
+            .extract(&ctx, &bytes)
+            .context("kb-parse-code::GoAstExtractor::extract (code:go)"),
+        "java" => JavaAstExtractor::new()
+            .extract(&ctx, &bytes)
+            .context("kb-parse-code::JavaAstExtractor::extract (code:java)"),
+        "kotlin" => KotlinAstExtractor::new()
+            .extract(&ctx, &bytes)
+            .context("kb-parse-code::KotlinAstExtractor::extract (code:kotlin)"),
+        // p10-2 Tier 2: no extractor — synthesize Document directly from raw bytes.
+        "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod" => {
+            synthesize_tier2_document(asset, &bytes, code_lang, &parser_version)
+        }
+        // p10-3: shell reuses the same synthesizer.
+        "shell" => synthesize_tier2_document(asset, &bytes, "shell", &parser_version),
+        // p10-1D: C + C++ AST extractors.
+        "c" => CAstExtractor::new()
+            .extract(&ctx, &bytes)
+            .context("kebab-parse-code::CAstExtractor::extract (code:c)"),
+        "cpp" => CppAstExtractor::new()
+            .extract(&ctx, &bytes)
+            .context("kebab-parse-code::CppAstExtractor::extract (code:cpp)"),
         other => anyhow::bail!("unreachable (extract): {other}"),
     };
 
+    // p10-3: Tier 1 extractor failure → fall back to Tier 3 synthesized doc.
+    // Tier 2 (yaml/dockerfile/…) and shell errors are real (e.g. non-UTF-8) — propagate.
+    let mut canonical = match canonical_result {
+        Ok(d) => d,
+        Err(e) if code_lang == "shell"
+            || matches!(code_lang, "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod") =>
+        {
+            return Err(e).context("synthesize_tier2_document failed for tier 2/3 lang");
+        }
+        Err(e) => {
+            // Tier 1 extractor errored — fall back to Tier 3 synthesized doc.
+            tracing::warn!(
+                workspace_path = %asset.workspace_path.0,
+                code_lang = code_lang,
+                error = %e,
+                "tier1 extract errored; falling back to tier 3 synthesized doc"
+            );
+            chunker_version = CodeTextParagraphV1Chunker.chunker_version();
+            let tier3_parser_version = ParserVersion("none-v1".to_string());
+            synthesize_tier2_document(asset, &bytes, code_lang, &tier3_parser_version)
+                .context("synthesize_tier2_document for tier 3 fallback after extract error")?
+        }
+    };
+
     // p10-1b Task D/G/J/L: chunker per-lang.
-    let chunks = match code_lang {
-        "rust" => CodeRustAstV1Chunker
+    // p10-3: track whether the extract stage already fell back to Tier 3.
+    // Tier 2 langs already have "none-v1" parser_version normally, so exclude them
+    // from the extract_fell_back guard with the !matches! exclusion.
+    let extract_fell_back = canonical.parser_version.0 == "none-v1"
+        && !matches!(code_lang, "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod" | "shell");
+
+    let chunks_result: anyhow::Result<Vec<Chunk>> = if extract_fell_back {
+        // Tier 1 lang whose extractor errored — go straight to Tier 3 chunker.
+        CodeTextParagraphV1Chunker
             .chunk(&canonical, chunk_policy)
-            .context("kb-chunk::CodeRustAstV1Chunker::chunk (code:rust)")?,
-        "python" => CodePythonAstV1Chunker
-            .chunk(&canonical, chunk_policy)
-            .context("kb-chunk::CodePythonAstV1Chunker::chunk (code:python)")?,
-        "typescript" => CodeTsAstV1Chunker
-            .chunk(&canonical, chunk_policy)
-            .context("kb-chunk::CodeTsAstV1Chunker::chunk (code:typescript)")?,
-        "javascript" => CodeJsAstV1Chunker
-            .chunk(&canonical, chunk_policy)
-            .context("kb-chunk::CodeJsAstV1Chunker::chunk (code:javascript)")?,
-        other => anyhow::bail!("unreachable (chunk): {other}"),
+            .context("kb-chunk::CodeTextParagraphV1Chunker::chunk (tier 3 after extract fallback)")
+    } else {
+        match code_lang {
+            "rust" => CodeRustAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeRustAstV1Chunker::chunk (code:rust)"),
+            "python" => CodePythonAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodePythonAstV1Chunker::chunk (code:python)"),
+            "typescript" => CodeTsAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeTsAstV1Chunker::chunk (code:typescript)"),
+            "javascript" => CodeJsAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeJsAstV1Chunker::chunk (code:javascript)"),
+            "go" => CodeGoAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeGoAstV1Chunker::chunk (code:go)"),
+            "java" => CodeJavaAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeJavaAstV1Chunker::chunk (code:java)"),
+            "kotlin" => CodeKotlinAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeKotlinAstV1Chunker::chunk (code:kotlin)"),
+            // p10-2 Tier 2:
+            "yaml" => K8sManifestResourceV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::K8sManifestResourceV1Chunker::chunk"),
+            "dockerfile" => DockerfileFileV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::DockerfileFileV1Chunker::chunk"),
+            "toml" | "json" | "xml" | "groovy" | "go-mod" => ManifestFileV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::ManifestFileV1Chunker::chunk"),
+            // p10-3:
+            "shell" => CodeTextParagraphV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeTextParagraphV1Chunker::chunk (code:shell)"),
+            // p10-1D: C + C++ AST chunkers.
+            "c" => CodeCAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kebab-chunk::CodeCAstV1Chunker::chunk (code:c)"),
+            "cpp" => CodeCppAstV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kebab-chunk::CodeCppAstV1Chunker::chunk (code:cpp)"),
+            other => anyhow::bail!("unreachable (chunk): {other}"),
+        }
+    };
+
+    // p10-3: Tier 1/2 0-chunk OR error → Tier 3 fallback retry.
+    // "shell" direct path is already Tier 3 — don't retry-double-up.
+    let chunks: Vec<Chunk> = match chunks_result {
+        Ok(v) if !v.is_empty() => v,
+        other if code_lang == "shell" => other?,  // shell propagates directly
+        Ok(_empty) => {
+            tracing::warn!(
+                workspace_path = %asset.workspace_path.0,
+                code_lang = code_lang,
+                "tier1/2 emitted 0 chunks; falling back to tier 3 (code-text-paragraph-v1)"
+            );
+            chunker_version = CodeTextParagraphV1Chunker.chunker_version();
+            canonical.parser_version = ParserVersion("none-v1".to_string());
+            CodeTextParagraphV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeTextParagraphV1Chunker::chunk (tier 3 fallback)")?
+        }
+        Err(e) => {
+            tracing::warn!(
+                workspace_path = %asset.workspace_path.0,
+                code_lang = code_lang,
+                error = %e,
+                "tier1/2 chunker errored; falling back to tier 3 (code-text-paragraph-v1)"
+            );
+            chunker_version = CodeTextParagraphV1Chunker.chunker_version();
+            canonical.parser_version = ParserVersion("none-v1".to_string());
+            CodeTextParagraphV1Chunker
+                .chunk(&canonical, chunk_policy)
+                .context("kb-chunk::CodeTextParagraphV1Chunker::chunk (tier 3 fallback after error)")?
+        }
     };
 
     // Stamp chunker + embedding versions so incremental skip detection has
@@ -1842,6 +2196,139 @@ fn ingest_one_code_asset(
     })
 }
 
+/// p10-2: Build a minimal [`CanonicalDocument`] for Tier 2 code assets
+/// (yaml / dockerfile / toml / json / xml / groovy / go-mod) that have
+/// no AST extractor. Produces a single `Block::Code` whose source span
+/// covers the entire file, mirroring the shape the Tier 1 extractors
+/// produce for glue / top-level regions.
+fn synthesize_tier2_document(
+    asset: &RawAsset,
+    bytes: &[u8],
+    code_lang: &str,
+    parser_version: &ParserVersion,
+) -> anyhow::Result<kebab_core::CanonicalDocument> {
+    use anyhow::Context as _;
+    use kebab_core::{
+        BlockId, CodeBlock, CommonBlock, Lang, Metadata, Provenance, ProvenanceEvent,
+        ProvenanceKind, SourceSpan, SourceType, TrustLevel, id_for_block, id_for_doc,
+    };
+
+    let text = std::str::from_utf8(bytes)
+        .with_context(|| format!("tier2 doc not utf-8: {}", asset.workspace_path.0))?
+        .to_string();
+
+    let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, parser_version);
+
+    let n_lines = text.lines().count().max(1) as u32;
+    let span = SourceSpan::Code {
+        line_start: 1,
+        line_end: n_lines,
+        symbol: Some("<file>".to_string()),
+        lang: Some(code_lang.to_string()),
+    };
+    let block_id: BlockId = id_for_block(
+        &doc_id,
+        "code",
+        &[],
+        0,
+        &span,
+    );
+    let block = kebab_core::Block::Code(CodeBlock {
+        common: CommonBlock {
+            block_id,
+            heading_path: vec![],
+            source_span: span,
+        },
+        lang: Some(code_lang.to_string()),
+        code: text,
+    });
+
+    let now = time::OffsetDateTime::now_utc();
+    let events = vec![
+        ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        },
+        ProvenanceEvent {
+            at: now,
+            agent: "kb-app".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; tier2_synthesized; lang={}",
+                parser_version.0, code_lang
+            )),
+        },
+    ];
+
+    // Resolve absolute path for repo detection. FsSourceConnector always
+    // emits absolute paths in SourceUri::File (verified in connector.rs); Kb
+    // URIs were rejected earlier in ingest_one_code_asset (returns Skipped),
+    // so the fallback below is purely defensive. This does NOT mirror
+    // RustAstExtractor — that extractor joins ctx.workspace_root for relative
+    // paths, but Tier 2 trusts the connector invariant.
+    let abs_path = match &asset.source_uri {
+        kebab_core::SourceUri::File(p) => p.clone(),
+        kebab_core::SourceUri::Kb(_) => std::path::PathBuf::new(),
+    };
+    let (repo, git_branch, git_commit) = match kebab_parse_code::detect_repo(&abs_path) {
+        Some(r) => (Some(r.name), r.branch, r.commit),
+        None => (None, None, None),
+    };
+
+    let title = {
+        let fname = asset.workspace_path.0
+            .rsplit('/')
+            .next()
+            .unwrap_or(&asset.workspace_path.0);
+        // strip extension
+        match fname.rfind('.') {
+            Some(i) => fname[..i].to_string(),
+            None => fname.to_string(),
+        }
+    };
+
+    let metadata = Metadata {
+        aliases: vec![],
+        tags: vec![],
+        created_at: asset.discovered_at,
+        updated_at: asset.discovered_at,
+        source_type: SourceType::Note,
+        trust_level: TrustLevel::Primary,
+        user_id_alias: None,
+        user: serde_json::Map::new(),
+        repo,
+        git_branch,
+        git_commit,
+        code_lang: Some(code_lang.to_string()),
+    };
+
+    tracing::debug!(
+        target: "kebab-app",
+        "synthesized tier2 doc_id={} workspace_path={} lang={}",
+        doc_id.0,
+        asset.workspace_path.0,
+        code_lang,
+    );
+
+    Ok(kebab_core::CanonicalDocument {
+        doc_id,
+        source_asset_id: asset.asset_id.clone(),
+        workspace_path: asset.workspace_path.clone(),
+        title,
+        lang: Lang("und".to_string()),
+        blocks: vec![block],
+        metadata,
+        provenance: Provenance { events },
+        parser_version: parser_version.clone(),
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    })
+}
+
 /// Pull the BCP-47 language hint from the canonical document. P6-1
 /// stamps `Lang("und")` by default; image-pipeline OCR / caption
 /// adapters special-case "und" so the hint is intentionally dropped

crates/kebab-app/src/reset.rs

@@ -9,13 +9,19 @@
 //!
 //! `--vector-only` additionally truncates `embedding_records` in SQLite
 //! so the next `kebab ingest` re-embeds cleanly without orphan rows.
+//!
+//! `--orphans-only` purges stored docs that are outside the current walker
+//! scope (config narrowing / removed sub-directory). No filesystem paths are
+//! removed — this is purely a store-level reconciliation.
 
+use std::collections::HashSet;
 use std::path::PathBuf;
 
 use anyhow::{Context, Result};
 use serde::{Deserialize, Serialize};
 
 use kebab_config::{Config, expand_path};
+use kebab_core::WorkspacePath;
 
 /// What the user asked to remove. Mutually exclusive — picked by the CLI
 /// from a clap `ArgGroup`.
@@ -32,6 +38,13 @@ pub enum ResetScope {
     VectorOnly,
     /// Wipe only the config dir.
     ConfigOnly,
+    /// Purge stored docs that are outside the current walker scope (no
+    /// filesystem paths are removed). Filesystem existence is NOT checked —
+    /// anything the current walker would not visit is considered an orphan.
+    /// The explicit complement to the conservative `sweep_deleted_files`
+    /// that runs during ingest (which leaves on-disk-but-out-of-scope docs
+    /// alone for data safety).
+    OrphansOnly,
 }
 
 /// Result of a successful wipe — emitted as `reset_report.v1` by the
@@ -41,6 +54,16 @@ pub struct ResetReport {
     pub scope: ResetScope,
     pub removed_paths: Vec<PathBuf>,
     pub embedding_rows_truncated: u64,
+    /// Number of stored docs purged because they are outside the current
+    /// walker scope. Non-zero only when `scope == OrphansOnly`.
+    /// `#[serde(default)]` preserves back-compat with older callers that
+    /// do not include this field.
+    #[serde(default)]
+    pub orphans_purged: u32,
+    /// Paths of the orphaned docs that were purged. Sorted for deterministic
+    /// output. Non-empty only when `scope == OrphansOnly`.
+    #[serde(default)]
+    pub purged_paths: Vec<WorkspacePath>,
 }
 
 /// Compute the absolute on-disk paths a given scope will wipe, given a
@@ -67,6 +90,10 @@ pub fn enumerate_paths(scope: ResetScope, cfg: &Config) -> Vec<PathBuf> {
             vec![vector_dir]
         }
         ResetScope::ConfigOnly => vec![cfg_dir],
+        // OrphansOnly operates purely at the store level — no filesystem paths
+        // are removed. Return empty so `estimate_size_bytes` stays zero and
+        // the existing confirm UI path for directory wipes is skipped.
+        ResetScope::OrphansOnly => vec![],
     }
 }
 
@@ -96,16 +123,82 @@ pub fn estimate_size_bytes(paths: &[PathBuf]) -> u64 {
     paths.iter().map(|p| walk(p)).sum()
 }
 
+/// Compute the workspace paths stored in SQLite that are NOT visited by
+/// the current walker scope (i.e. they are "orphans" — on disk but
+/// outside the configured include/exclude rules, or from a sub-directory
+/// that has since been removed from the workspace).
+///
+/// Does NOT check filesystem existence — `OrphansOnly` is the explicit
+/// "I know what I'm doing" variant; callers that want the conservative
+/// fs-aware sweep should use `sweep_deleted_files` inside ingest.
+///
+/// Returns the list sorted for deterministic output. Called twice by the
+/// CLI path (once for the confirm UI preview, once inside `execute`);
+/// the double scan is acceptable for a rare destructive operation.
+pub fn enumerate_orphans(cfg: &Config) -> Result<Vec<WorkspacePath>> {
+    use kebab_core::DocumentStore as _;
+    use kebab_source_fs::FsSourceConnector;
+    use kebab_core::SourceScope;
+
+    let store = kebab_store_sqlite::SqliteStore::open(cfg)
+        .context("enumerate_orphans: open SqliteStore")?;
+
+    let stored = store
+        .all_workspace_paths()
+        .context("enumerate_orphans: all_workspace_paths")?;
+
+    if stored.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    // Build the same SourceScope the CLI's ingest path uses: root from
+    // config, exclude list from config, no include override (full scope).
+    let root = cfg.resolve_workspace_root();
+    let scope = SourceScope {
+        root: root.clone(),
+        exclude: cfg.workspace.exclude.clone(),
+        ..Default::default()
+    };
+
+    let connector = FsSourceConnector::new(cfg)
+        .context("enumerate_orphans: build FsSourceConnector")?;
+    let (assets, _skips) = connector
+        .scan_with_skips(&scope)
+        .context("enumerate_orphans: scan workspace")?;
+
+    let scanned: HashSet<WorkspacePath> = assets
+        .into_iter()
+        .map(|a| a.workspace_path)
+        .collect();
+
+    let mut orphans: Vec<WorkspacePath> = stored
+        .into_iter()
+        .filter(|p| !scanned.contains(p))
+        .collect();
+    orphans.sort_by(|a, b| a.0.cmp(&b.0));
+    Ok(orphans)
+}
+
 /// Wipe every path from `enumerate_paths(scope, cfg)`. For
 /// `ResetScope::VectorOnly`, also truncates the SQLite
 /// `embedding_records` table so the store doesn't point at the Lance
 /// rows we just removed off-disk.
 ///
+/// For `ResetScope::OrphansOnly`, no filesystem directories are removed.
+/// Instead the store is reconciled: stored docs outside the current walker
+/// scope are purged from SQLite (+ vector store when configured). The
+/// caller is expected to have already shown the confirm UI using
+/// `enumerate_orphans`.
+///
 /// Idempotent: a missing path is treated as already-removed (success).
 /// Returns a `ResetReport` listing exactly what was removed (paths that
 /// existed before the call) so `--json` callers see the truth, not the
 /// request.
 pub fn execute(scope: ResetScope, cfg: &Config) -> Result<ResetReport> {
+    if matches!(scope, ResetScope::OrphansOnly) {
+        return execute_orphans_only(cfg);
+    }
+
     let paths = enumerate_paths(scope, cfg);
     let mut removed = Vec::new();
 
@@ -128,9 +221,100 @@ pub fn execute(scope: ResetScope, cfg: &Config) -> Result<ResetReport> {
         scope,
         removed_paths: removed,
         embedding_rows_truncated,
+        orphans_purged: 0,
+        purged_paths: Vec::new(),
     })
 }
 
+/// Execute the `OrphansOnly` variant: reconcile stored docs against the
+/// current walker scope without touching any filesystem directory.
+fn execute_orphans_only(cfg: &Config) -> Result<ResetReport> {
+    let orphans = enumerate_orphans(cfg)
+        .context("execute_orphans_only: enumerate orphans")?;
+
+    if orphans.is_empty() {
+        return Ok(ResetReport {
+            scope: ResetScope::OrphansOnly,
+            removed_paths: Vec::new(),
+            embedding_rows_truncated: 0,
+            orphans_purged: 0,
+            purged_paths: Vec::new(),
+        });
+    }
+
+    let store = std::sync::Arc::new(
+        kebab_store_sqlite::SqliteStore::open(cfg)
+            .context("execute_orphans_only: open SqliteStore")?,
+    );
+
+    // Open vector store if configured. Mirror the same guard the ingest
+    // path uses: only construct when the provider is not "none" / dims > 0.
+    let vector_store: Option<kebab_store_vector::LanceVectorStore> =
+        open_vector_store_if_configured(cfg, store.clone())?;
+
+    let mut purged_paths: Vec<WorkspacePath> = Vec::new();
+
+    for path in &orphans {
+        let chunk_ids = kebab_store_sqlite::purge_deleted_workspace_path(&store, path)
+            .with_context(|| format!("execute_orphans_only: purge {}", path.0))?;
+
+        if let Some(ref vs) = vector_store {
+            if !chunk_ids.is_empty() {
+                use kebab_core::VectorStore as _;
+                if let Err(e) = vs.delete_by_chunk_ids(&chunk_ids) {
+                    tracing::warn!(
+                        target: "kebab-app",
+                        path = %path.0,
+                        count = chunk_ids.len(),
+                        error = %e,
+                        "reset --orphans-only: vector delete failed; SQLite side already cleaned"
+                    );
+                }
+            }
+        }
+
+        tracing::info!(
+            target: "kebab-app",
+            path = %path.0,
+            "reset --orphans-only: purged orphan document"
+        );
+        purged_paths.push(path.clone());
+    }
+
+    let orphans_purged = u32::try_from(purged_paths.len()).unwrap_or(u32::MAX);
+
+    Ok(ResetReport {
+        scope: ResetScope::OrphansOnly,
+        removed_paths: Vec::new(),
+        embedding_rows_truncated: 0,
+        orphans_purged,
+        purged_paths,
+    })
+}
+
+/// Open the Lance vector store if the configured embedding provider is
+/// active (non-"none", dimensions > 0). Returns `None` for lexical-only
+/// configs. Mirrors the guard in `App::vector`.
+fn open_vector_store_if_configured(
+    cfg: &Config,
+    store: std::sync::Arc<kebab_store_sqlite::SqliteStore>,
+) -> Result<Option<kebab_store_vector::LanceVectorStore>> {
+    if cfg.models.embedding.provider == "none" || cfg.models.embedding.dimensions == 0 {
+        return Ok(None);
+    }
+    match kebab_store_vector::LanceVectorStore::new(cfg, store) {
+        Ok(vs) => Ok(Some(vs)),
+        Err(e) => {
+            tracing::warn!(
+                target: "kebab-app",
+                error = %e,
+                "reset --orphans-only: could not open vector store; skipping vector delete"
+            );
+            Ok(None)
+        }
+    }
+}
+
 /// Open the SQLite store at the configured path and run
 /// `truncate_embedding_records`. Returns the count of truncated rows
 /// (the helper itself reports `DELETE` rowcount). If the SQLite file
@@ -200,4 +384,14 @@ mod tests {
         let bytes = estimate_size_bytes(&[dir.path().to_path_buf()]);
         assert_eq!(bytes, 5 + 6);
     }
+
+    #[test]
+    fn enumerate_orphans_only_returns_empty_paths() {
+        let cfg = Config::defaults();
+        let paths = enumerate_paths(ResetScope::OrphansOnly, &cfg);
+        assert!(
+            paths.is_empty(),
+            "OrphansOnly must return empty vec from enumerate_paths"
+        );
+    }
 }

crates/kebab-app/tests/code_ingest_smoke.rs

@@ -390,6 +390,641 @@ fn javascript_file_ingests_and_searches_as_code_citation() {
     );
 }
 
+/// p10-1c-go Task F: a `.go` file in a sub-directory is ingested and the
+/// resulting `Citation::Code` hit must carry `lang="go"`,
+/// `symbol="chunk.ParseDoc"`, and `line_start >= 1`.
+/// The sub-directory (`chunk/`) ensures the Go package-prefix wiring
+/// produces a non-empty module prefix so the fully-qualified symbol assertion
+/// exercises that path end-to-end.
+#[test]
+fn go_file_ingests_and_searches_as_code_citation() {
+    let env = TestEnv::lexical_only();
+
+    let pkg_dir = env.workspace_root.join("chunk");
+    std::fs::create_dir_all(&pkg_dir).unwrap();
+    std::fs::write(
+        pkg_dir.join("ast.go"),
+        "package chunk\n\nfunc ParseDoc(input string) string {\n    return input\n}\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0);
+    assert!(report.new >= 1);
+
+    let go_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("ast.go"))
+        .expect("ast.go item present");
+    assert_eq!(
+        go_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("code-go-v1"),
+        "parser_version must be code-go-v1"
+    );
+    assert_eq!(
+        go_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-go-ast-v1"),
+        "chunker_version must be code-go-ast-v1"
+    );
+
+    let hits = kebab_app::search_with_config(env.config.clone(), lexical_query("ParseDoc"))
+        .expect("search must succeed");
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, kebab_core::Citation::Code { .. }))
+        .expect("Citation::Code hit");
+    match &h.citation {
+        kebab_core::Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("go"), "citation.lang must be 'go'");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("chunk.ParseDoc"),
+                "citation.symbol must be 'chunk.ParseDoc'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("go"),
+        "SearchHit.code_lang must be 'go'"
+    );
+}
+
+/// p10-1c-jk Task F: a `.java` file in a package directory is ingested and the
+/// resulting `Citation::Code` hit must carry `lang="java"`,
+/// `symbol="com.foo.Foo.bar"`, and `line_start >= 1`.
+/// The sub-directory (`com/foo/`) ensures the Java package-prefix wiring
+/// produces a non-empty module prefix so the fully-qualified symbol assertion
+/// exercises that path end-to-end.
+#[test]
+fn java_file_ingests_and_searches_as_code_citation() {
+    let env = TestEnv::lexical_only();
+
+    let pkg_dir = env.workspace_root.join("com").join("foo");
+    std::fs::create_dir_all(&pkg_dir).unwrap();
+    std::fs::write(
+        pkg_dir.join("Foo.java"),
+        "package com.foo;\n\npublic class Foo {\n    public String bar() { return \"x\"; }\n}\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0);
+    assert!(report.new >= 1);
+
+    let java_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("Foo.java"))
+        .expect("Foo.java item present");
+    assert_eq!(
+        java_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("code-java-v1"),
+        "parser_version must be code-java-v1"
+    );
+    assert_eq!(
+        java_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-java-ast-v1"),
+        "chunker_version must be code-java-ast-v1"
+    );
+
+    let hits = kebab_app::search_with_config(env.config.clone(), lexical_query("bar"))
+        .expect("search must succeed");
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, kebab_core::Citation::Code { .. }))
+        .expect("Citation::Code hit");
+    match &h.citation {
+        kebab_core::Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("java"), "citation.lang must be 'java'");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("com.foo.Foo.bar"),
+                "citation.symbol must be 'com.foo.Foo.bar'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("java"),
+        "SearchHit.code_lang must be 'java'"
+    );
+}
+
+/// p10-1c-jk Task I: a `.kt` file in a package directory is ingested and the
+/// resulting `Citation::Code` hit must carry `lang="kotlin"`,
+/// `symbol="com.foo.Foo.bar"`, and `line_start >= 1`.
+/// The sub-directory (`com/foo/`) ensures the Kotlin package-prefix wiring
+/// produces a non-empty module prefix so the fully-qualified symbol assertion
+/// exercises that path end-to-end.
+#[test]
+fn kotlin_file_ingests_and_searches_as_code_citation() {
+    let env = TestEnv::lexical_only();
+
+    let pkg_dir = env.workspace_root.join("com").join("foo");
+    std::fs::create_dir_all(&pkg_dir).unwrap();
+    std::fs::write(
+        pkg_dir.join("Foo.kt"),
+        "package com.foo\n\nclass Foo {\n    fun bar(): String = \"x\"\n}\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0);
+    assert!(report.new >= 1);
+
+    let kt_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("Foo.kt"))
+        .expect("Foo.kt item present");
+    assert_eq!(
+        kt_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("code-kotlin-v1"),
+        "parser_version must be code-kotlin-v1"
+    );
+    assert_eq!(
+        kt_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-kotlin-ast-v1"),
+        "chunker_version must be code-kotlin-ast-v1"
+    );
+
+    let hits = kebab_app::search_with_config(env.config.clone(), lexical_query("bar"))
+        .expect("search must succeed");
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, kebab_core::Citation::Code { .. }))
+        .expect("Citation::Code hit");
+    match &h.citation {
+        kebab_core::Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("kotlin"), "citation.lang must be 'kotlin'");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("com.foo.Foo.bar"),
+                "citation.symbol must be 'com.foo.Foo.bar'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("kotlin"),
+        "SearchHit.code_lang must be 'kotlin'"
+    );
+}
+
+/// p10-2 Task H: a `k8s/deploy.yaml` file with a Deployment resource is
+/// ingested and the resulting `Citation::Code` hit must carry
+/// `lang="yaml"`, `symbol="Deployment/prod/api"`, and `line_start >= 1`.
+/// Exercises the k8s-manifest-resource-v1 chunker end-to-end.
+#[test]
+fn tier2_k8s_yaml_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    let k8s_dir = env.workspace_root.join("k8s");
+    std::fs::create_dir_all(&k8s_dir).unwrap();
+    std::fs::write(
+        k8s_dir.join("deploy.yaml"),
+        "apiVersion: apps/v1\nkind: Deployment\nmetadata:\n  name: api\n  namespace: prod\nspec:\n  replicas: 1\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "yaml file ingested: {report:?}");
+
+    let yaml_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("deploy.yaml"))
+        .expect("deploy.yaml item present");
+    assert_eq!(
+        yaml_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("none-v1"),
+        "parser_version must be none-v1"
+    );
+    assert_eq!(
+        yaml_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("k8s-manifest-resource-v1"),
+        "chunker_version must be k8s-manifest-resource-v1"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "api".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["yaml".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'api'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("yaml"), "citation.lang must be 'yaml'");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("Deployment/prod/api"),
+                "citation.symbol must be 'Deployment/prod/api'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("yaml"),
+        "SearchHit.code_lang must be 'yaml'"
+    );
+}
+
+/// p10-2 Task H: a `Dockerfile` is ingested and the resulting
+/// `Citation::Code` hit must carry `lang="dockerfile"`,
+/// `symbol="<dockerfile>"`, and `line_start >= 1`.
+/// Exercises the dockerfile-file-v1 chunker end-to-end.
+#[test]
+fn tier2_dockerfile_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("Dockerfile"),
+        "FROM rust:1.94\nRUN cargo install foo\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "Dockerfile ingested: {report:?}");
+
+    let df_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("Dockerfile"))
+        .expect("Dockerfile item present");
+    assert_eq!(
+        df_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("none-v1"),
+        "parser_version must be none-v1"
+    );
+    assert_eq!(
+        df_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("dockerfile-file-v1"),
+        "chunker_version must be dockerfile-file-v1"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "cargo".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["dockerfile".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'cargo'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(
+                lang.as_deref(),
+                Some("dockerfile"),
+                "citation.lang must be 'dockerfile'"
+            );
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<dockerfile>"),
+                "citation.symbol must be '<dockerfile>'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("dockerfile"),
+        "SearchHit.code_lang must be 'dockerfile'"
+    );
+}
+
+/// p10-2 Task H: a `Cargo.toml` manifest is ingested and the resulting
+/// `Citation::Code` hit must carry `lang="toml"`, `symbol="<manifest>"`,
+/// and `line_start >= 1`.
+/// Exercises the manifest-file-v1 chunker end-to-end.
+#[test]
+fn tier2_cargo_toml_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("Cargo.toml"),
+        "[package]\nname = \"demo\"\nversion = \"0.1.0\"\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "Cargo.toml ingested: {report:?}");
+
+    let toml_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("Cargo.toml"))
+        .expect("Cargo.toml item present");
+    assert_eq!(
+        toml_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("none-v1"),
+        "parser_version must be none-v1"
+    );
+    assert_eq!(
+        toml_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("manifest-file-v1"),
+        "chunker_version must be manifest-file-v1"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "demo".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["toml".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'demo'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(
+                lang.as_deref(),
+                Some("toml"),
+                "citation.lang must be 'toml'"
+            );
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<manifest>"),
+                "citation.symbol must be '<manifest>'"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("toml"),
+        "SearchHit.code_lang must be 'toml'"
+    );
+}
+
+/// p10-3 Task E: a `.sh` file is ingested via the shell direct-Tier-3 path
+/// and the resulting `Citation::Code` hit must carry `lang="shell"`,
+/// `symbol=None`, `line_start >= 1`, and
+/// `chunker_version = "code-text-paragraph-v1"`.
+#[test]
+fn tier3_shell_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("deploy.sh"),
+        "#!/usr/bin/env bash\nset -e\necho hello\n\nkebab ingest --json\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "shell file ingested: {report:?}");
+
+    let sh_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("deploy.sh"))
+        .expect("deploy.sh item present");
+    assert_eq!(
+        sh_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("none-v1"),
+        "parser_version must be none-v1 for shell (Tier 3 direct)"
+    );
+    assert_eq!(
+        sh_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-text-paragraph-v1"),
+        "chunker_version must be code-text-paragraph-v1 for shell"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "kebab".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["shell".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'kebab'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(
+                lang.as_deref(),
+                Some("shell"),
+                "citation.lang must be 'shell'"
+            );
+            assert_eq!(*symbol, None, "Tier 3 symbol must be None");
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("shell"),
+        "SearchHit.code_lang must be 'shell'"
+    );
+    assert_eq!(
+        h.chunker_version.0.as_str(),
+        "code-text-paragraph-v1",
+        "shell chunks must be stamped with the Tier 3 chunker_version"
+    );
+}
+
+/// p10-3 Task E: a docker-compose-shaped YAML file (no `apiVersion`/`kind`)
+/// is ingested; the k8s chunker returns `Ok(vec![])` and the Tier 3 fallback
+/// wrapper retries with `CodeTextParagraphV1Chunker`. The resulting
+/// `Citation::Code` hit must carry `lang="yaml"`, `symbol=None`,
+/// `line_start >= 1`, and `chunker_version = "code-text-paragraph-v1"`.
+#[test]
+fn tier3_yaml_fallback_picks_up_non_k8s_yaml() {
+    let env = TestEnv::lexical_only();
+
+    // docker-compose-shaped YAML — version + services but no apiVersion/kind.
+    // The k8s chunker returns Ok(vec![]); Tier 3 fallback should pick this up.
+    std::fs::write(
+        env.workspace_root.join("docker-compose.yml"),
+        "version: '3'\nservices:\n  api:\n    image: nginx:latest\n    ports:\n      - 8080:80\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(
+        report.new >= 1,
+        "expected non-k8s yaml ingested via Tier 3, got {} new docs",
+        report.new
+    );
+
+    let yaml_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("docker-compose.yml"))
+        .expect("docker-compose.yml item present");
+    assert_eq!(
+        yaml_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("none-v1"),
+        "parser_version must be none-v1 after Tier 3 fallback"
+    );
+    assert_eq!(
+        yaml_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-text-paragraph-v1"),
+        "chunker_version must be code-text-paragraph-v1 after Tier 3 fallback"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "nginx".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["yaml".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'nginx'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(
+                lang.as_deref(),
+                Some("yaml"),
+                "citation.lang must be 'yaml'"
+            );
+            assert_eq!(*symbol, None, "Tier 3 fallback symbol must be None");
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("yaml"),
+        "SearchHit.code_lang must be 'yaml'"
+    );
+    assert_eq!(
+        h.chunker_version.0.as_str(),
+        "code-text-paragraph-v1",
+        "non-k8s yaml fallback must be stamped code-text-paragraph-v1"
+    );
+}
+
 /// Re-ingesting the same `.rs` file without changes must report
 /// `Unchanged` (incremental-skip path exercised).
 #[test]
@@ -429,3 +1064,328 @@ fn rust_file_re_ingest_is_unchanged() {
     );
     assert_eq!(item2.doc_id, item1.doc_id);
 }
+
+/// p10-3 fix regression: a docker-compose YAML that falls back to Tier 3
+/// (k8s chunker returns empty, CodeTextParagraphV1Chunker retries) must
+/// report Unchanged on the second ingest rather than re-processing.
+/// Before the fix, try_skip_unchanged returned None because the stored
+/// last_chunker_version ("code-text-paragraph-v1" / parser_version
+/// "none-v1") never matched the caller's dispatch values.
+#[test]
+fn tier3_yaml_fallback_reingest_is_unchanged() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("docker-compose.yml"),
+        "version: '3'\nservices:\n  api:\n    image: nginx:latest\n",
+    )
+    .unwrap();
+
+    let report1 =
+        kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+            .expect("first ingest");
+    let item1 = report1
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("docker-compose.yml"))
+        .expect("docker-compose.yml in first report");
+    assert!(
+        matches!(item1.kind, IngestItemKind::New),
+        "first ingest must be New, got {:?}", item1.kind
+    );
+    assert_eq!(
+        item1.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-text-paragraph-v1"),
+        "first ingest must use Tier 3 fallback chunker"
+    );
+
+    let report2 =
+        kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+            .expect("second ingest");
+    let item2 = report2
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("docker-compose.yml"))
+        .expect("docker-compose.yml in second report");
+    assert!(
+        matches!(item2.kind, IngestItemKind::Unchanged),
+        "second ingest must be Unchanged, got {:?}", item2.kind
+    );
+}
+
+/// p10-1d Task G: a `.c` file with a single top-level function is ingested
+/// and the resulting `Citation::Code` hit must carry `lang="c"`,
+/// `symbol="parse_record"` (function name only — no nesting in C), and
+/// `chunker_version = "code-c-ast-v1"`.
+#[test]
+fn tier1_c_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("parser.c"),
+        "#include <stdio.h>\n\nint parse_record(const char *line) {\n    if (line == NULL) return -1;\n    return 0;\n}\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "c file ingested: {report:?}");
+
+    let c_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("parser.c"))
+        .expect("parser.c item present");
+    assert_eq!(
+        c_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("code-c-v1"),
+        "parser_version must be code-c-v1"
+    );
+    assert_eq!(
+        c_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-c-ast-v1"),
+        "chunker_version must be code-c-ast-v1"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "parse_record".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["c".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'parse_record'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("c"), "citation.lang must be 'c'");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("parse_record"),
+                "C symbol must be function name only (no nesting)"
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("c"),
+        "SearchHit.code_lang must be 'c'"
+    );
+    assert_eq!(
+        h.chunker_version.0.as_str(),
+        "code-c-ast-v1",
+        "C chunks must be stamped with code-c-ast-v1"
+    );
+}
+
+/// p10-1d Task G: a `.cpp` file with nested namespace + class is ingested
+/// and the resulting `Citation::Code` hit must carry `lang="cpp"`, a
+/// `symbol` that starts with `"kebab::chunk::Foo"` (namespace::Class or
+/// namespace::Class::method), and `chunker_version = "code-cpp-ast-v1"`.
+#[test]
+fn tier1_cpp_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("chunker.cpp"),
+        "namespace kebab {\nnamespace chunk {\nclass Foo {\npublic:\n    void bar() { /* impl */ }\n};\n}\n}\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors: {report:?}");
+    assert!(report.new >= 1, "cpp file ingested: {report:?}");
+
+    let cpp_item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("chunker.cpp"))
+        .expect("chunker.cpp item present");
+    assert_eq!(
+        cpp_item.parser_version.as_ref().map(|p| p.0.as_str()),
+        Some("code-cpp-v1"),
+        "parser_version must be code-cpp-v1"
+    );
+    assert_eq!(
+        cpp_item.chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-cpp-ast-v1"),
+        "chunker_version must be code-cpp-ast-v1"
+    );
+
+    let query = kebab_core::SearchQuery {
+        text: "bar".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["cpp".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+
+    let h = hits
+        .iter()
+        .find(|h| matches!(&h.citation, Citation::Code { .. }))
+        .expect("at least one Citation::Code hit for 'bar'");
+
+    match &h.citation {
+        Citation::Code {
+            lang,
+            symbol,
+            line_start,
+            ..
+        } => {
+            assert_eq!(lang.as_deref(), Some("cpp"), "citation.lang must be 'cpp'");
+            // Symbol could be "kebab::chunk::Foo" (class) or "kebab::chunk::Foo::bar"
+            // (method) depending on which chunk ranks first.
+            assert!(
+                symbol.as_deref().is_some_and(|s| s.starts_with("kebab::chunk::Foo")),
+                "C++ symbol must start with namespace::Class prefix, got {:?}", symbol
+            );
+            assert!(*line_start >= 1, "line_start must be >=1");
+        }
+        _ => unreachable!(),
+    }
+
+    assert_eq!(
+        h.code_lang.as_deref(),
+        Some("cpp"),
+        "SearchHit.code_lang must be 'cpp'"
+    );
+    assert_eq!(
+        h.chunker_version.0.as_str(),
+        "code-cpp-ast-v1",
+        "C++ chunks must be stamped with code-cpp-ast-v1"
+    );
+}
+
+/// P10 dogfood regression: a k8s YAML with 2 documents (Deployment + Service
+/// separated by `---`) must ingest without a UNIQUE constraint violation.
+/// Before the fix, push_chunks_with_oversize emitted split_key=None for each
+/// resource, giving every resource chunk the same id_hash → identical chunk_id
+/// → SQLite UNIQUE constraint failure on the second resource.
+#[test]
+fn tier2_k8s_multi_resource_yaml_ingests_without_collision() {
+    let env = TestEnv::lexical_only();
+
+    let k8s_dir = env.workspace_root.join("k8s");
+    std::fs::create_dir_all(&k8s_dir).unwrap();
+    std::fs::write(
+        k8s_dir.join("k8s-multi.yaml"),
+        "apiVersion: apps/v1\nkind: Deployment\nmetadata:\n  name: api\n  namespace: prod\nspec:\n  replicas: 2\n---\napiVersion: v1\nkind: Service\nmetadata:\n  name: api\n  namespace: prod\nspec:\n  selector:\n    app: api\n",
+    )
+    .unwrap();
+
+    let report = kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+
+    // The bug: this would land in report with an error + UNIQUE constraint message.
+    let item = report
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("k8s-multi.yaml"))
+        .expect("k8s-multi.yaml in report");
+    assert!(
+        item.error.is_none(),
+        "multi-resource k8s yaml must ingest without error, got: {:?}",
+        item.error
+    );
+    assert!(
+        matches!(item.kind, IngestItemKind::New),
+        "expected New, got {:?}",
+        item.kind
+    );
+
+    // Both resources must be searchable (≥2 hits: Deployment/prod/api + Service/prod/api).
+    let query = kebab_core::SearchQuery {
+        text: "api".to_string(),
+        mode: kebab_core::SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters {
+            code_lang: vec!["yaml".to_string()],
+            ..Default::default()
+        },
+    };
+    let hits = kebab_app::search_with_config(env.config.clone(), query)
+        .expect("search must succeed");
+    assert!(
+        hits.len() >= 2,
+        "expected ≥2 hits (Deployment + Service), got {}",
+        hits.len()
+    );
+}
+
+/// p10-3 fix regression: a shell file (direct Tier 3, not a fallback)
+/// must also report Unchanged on re-ingest. Shell goes straight to
+/// CodeTextParagraphV1Chunker so `stored_is_tier3_fallback` is false
+/// (parser_version is "none-v1" and chunker matches the current dispatch),
+/// but the normal equality path should pass regardless.
+#[test]
+fn tier3_shell_reingest_is_unchanged() {
+    let env = TestEnv::lexical_only();
+
+    std::fs::write(
+        env.workspace_root.join("deploy.sh"),
+        "#!/usr/bin/env bash\nset -e\necho hello\n",
+    )
+    .unwrap();
+
+    let report1 =
+        kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+            .expect("first ingest");
+    let item1 = report1
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("deploy.sh"))
+        .expect("deploy.sh in first report");
+    assert!(
+        matches!(item1.kind, IngestItemKind::New),
+        "first ingest must be New, got {:?}", item1.kind
+    );
+
+    let report2 =
+        kebab_app::ingest_with_config(env.config.clone(), env.scope(), false)
+            .expect("second ingest");
+    let item2 = report2
+        .items
+        .as_ref()
+        .expect("items present")
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("deploy.sh"))
+        .expect("deploy.sh in second report");
+    assert!(
+        matches!(item2.kind, IngestItemKind::Unchanged),
+        "shell reingest must be Unchanged, got {:?}", item2.kind
+    );
+}

crates/kebab-app/tests/file_deletion_auto_purge.rs

@@ -0,0 +1,178 @@
+//! Dogfood: auto-purge stored docs for filesystem-deleted files.
+//!
+//! Two tests:
+//!
+//! 1. `file_deletion_auto_purge` — ingest 2 files, delete one, re-ingest.
+//!    The re-ingest must report `purged_deleted_files = 1`, the deleted
+//!    file must no longer appear in `list_docs`, and lexical search for
+//!    its unique content must return no hits.
+//!
+//! 2. `include_scope_narrowing_does_not_purge` — ingest 2 files under a
+//!    wide glob, narrow the walker scope to only one file, re-ingest.
+//!    The narrowed ingest must NOT purge the out-of-scope file because
+//!    the file is still on disk (just excluded from this run). Protects
+//!    users against accidental data loss via config edits.
+
+mod common;
+
+use common::TestEnv;
+use kebab_app::ingest_with_config_opts;
+use kebab_app::IngestOpts;
+use kebab_core::{DocFilter, DocumentStore, SearchMode, SearchQuery, SourceScope};
+
+/// Helper: open the store via `TestEnv` and run `list_documents`.
+fn list_doc_paths(env: &TestEnv) -> Vec<String> {
+    use kebab_store_sqlite::SqliteStore;
+    let store = SqliteStore::open(&env.config).unwrap();
+    store.run_migrations().unwrap();
+    store
+        .list_documents(&DocFilter::default())
+        .unwrap()
+        .into_iter()
+        .map(|d| d.doc_path.0)
+        .collect()
+}
+
+#[test]
+fn file_deletion_auto_purge() {
+    let env = TestEnv::lexical_only();
+
+    // Write two .rs files into the workspace.
+    let a_path = env.workspace_root.join("a.rs");
+    let b_path = env.workspace_root.join("b.rs");
+    std::fs::write(&a_path, "// file a\nfn alpha() {}\n").unwrap();
+    std::fs::write(&b_path, "// file b\nfn bravo() {}\n").unwrap();
+
+    // First ingest — both must be New.
+    let first = ingest_with_config_opts(
+        env.config.clone(),
+        env.scope(),
+        false,
+        IngestOpts::default(),
+    )
+    .expect("first ingest must succeed");
+    // Only count the .rs files we added (there may be fixture files too).
+    let first_new = first.new;
+    assert!(first_new >= 2, "expected at least 2 new docs: {first:?}");
+    assert_eq!(
+        first.purged_deleted_files, 0,
+        "no purges on first ingest: {first:?}"
+    );
+    assert_eq!(first.errors, 0, "no errors on first ingest: {first:?}");
+
+    // Delete one file from the filesystem.
+    std::fs::remove_file(&b_path).expect("remove b.rs");
+
+    // Second ingest — scanned count drops by 1; b.rs should be purged.
+    let second = ingest_with_config_opts(
+        env.config.clone(),
+        env.scope(),
+        false,
+        IngestOpts::default(),
+    )
+    .expect("second ingest must succeed");
+
+    assert_eq!(
+        second.purged_deleted_files, 1,
+        "exactly 1 file should be purged: {second:?}"
+    );
+    assert_eq!(second.new, 0, "no new docs after deletion: {second:?}");
+    assert_eq!(second.updated, 0, "no updated docs: {second:?}");
+    assert_eq!(second.errors, 0, "no errors: {second:?}");
+
+    // b.rs must no longer appear in list_docs.
+    let doc_paths = list_doc_paths(&env);
+    let b_ws_path = "b.rs";
+    assert!(
+        !doc_paths.iter().any(|p| p == b_ws_path),
+        "b.rs must be gone from list_docs; got: {doc_paths:?}"
+    );
+    // a.rs must still be present.
+    let a_ws_path = "a.rs";
+    assert!(
+        doc_paths.iter().any(|p| p == a_ws_path),
+        "a.rs must still be in list_docs; got: {doc_paths:?}"
+    );
+
+    // Lexical search for b.rs's unique content returns no hits.
+    let app = env.app();
+    let query = SearchQuery {
+        text: "bravo".to_string(),
+        mode: SearchMode::Lexical,
+        k: 10,
+        filters: kebab_core::SearchFilters::default(),
+    };
+    let hits = app.search(query).expect("search must not error");
+    assert!(
+        hits.is_empty(),
+        "search for deleted file's content must return no hits; got: {hits:?}"
+    );
+}
+
+#[test]
+fn include_scope_narrowing_does_not_purge() {
+    let env = TestEnv::lexical_only();
+
+    // Write two .rs files.
+    let a_path = env.workspace_root.join("a_narrow.rs");
+    let b_path = env.workspace_root.join("b_narrow.rs");
+    std::fs::write(&a_path, "// narrow a\nfn alpha_narrow() {}\n").unwrap();
+    std::fs::write(&b_path, "// narrow b\nfn bravo_narrow() {}\n").unwrap();
+
+    // Wide scope: first ingest — both must be New.
+    let wide_scope = SourceScope {
+        root: env.workspace_root.clone(),
+        include: vec!["**/*.rs".to_string()],
+        exclude: env.config.workspace.exclude.clone(),
+    };
+    let first = ingest_with_config_opts(
+        env.config.clone(),
+        wide_scope,
+        false,
+        IngestOpts::default(),
+    )
+    .expect("first ingest (wide) must succeed");
+    assert!(
+        first.new >= 2,
+        "expected at least 2 new docs: {first:?}"
+    );
+    assert_eq!(
+        first.purged_deleted_files, 0,
+        "no purges on first ingest: {first:?}"
+    );
+
+    // Narrow scope: only a_narrow.rs in include — b_narrow.rs is still
+    // on disk but excluded from the walker scope.
+    let narrow_scope = SourceScope {
+        root: env.workspace_root.clone(),
+        include: vec!["a_narrow.rs".to_string()],
+        exclude: env.config.workspace.exclude.clone(),
+    };
+    let second = ingest_with_config_opts(
+        env.config.clone(),
+        narrow_scope,
+        false,
+        IngestOpts::default(),
+    )
+    .expect("second ingest (narrow) must succeed");
+
+    // CRITICAL: b_narrow.rs is still on disk — must NOT be purged.
+    assert_eq!(
+        second.purged_deleted_files, 0,
+        "scope-narrowing must NOT purge on-disk files; got: {second:?}"
+    );
+    assert_eq!(second.errors, 0, "no errors: {second:?}");
+
+    // b_narrow.rs must still exist in the store.
+    let doc_paths = list_doc_paths(&env);
+    let b_ws_path = "b_narrow.rs";
+    assert!(
+        doc_paths.iter().any(|p| p == b_ws_path),
+        "b_narrow.rs must still be in list_docs after scope narrowing; got: {doc_paths:?}"
+    );
+    // And the file must still be on disk.
+    assert!(
+        b_path.exists(),
+        "b_narrow.rs must still be on disk (we didn't delete it)"
+    );
+}

crates/kebab-app/tests/reset_orphans.rs

@@ -0,0 +1,141 @@
+//! Integration test for `kebab reset --orphans-only`.
+//!
+//! Verifies that stored docs outside the current walker scope are purged
+//! from the store without removing any files from the filesystem.
+//!
+//! Test outline:
+//! 1. Ingest 3 .rs files (a.rs, b.rs, c.rs) — all New.
+//! 2. Narrow the config `include` to `["a.rs"]` only; b.rs and c.rs are
+//!    still on disk but outside the walker scope.
+//! 3. Run `execute(ResetScope::OrphansOnly, &cfg)` — report must show
+//!    `orphans_purged == 2` and `purged_paths` contains b.rs + c.rs.
+//! 4. `list docs` must show only a.rs.
+//! 5. b.rs and c.rs must still exist on disk (no filesystem removal).
+//! 6. Second reset → `orphans_purged == 0` (idempotent).
+
+mod common;
+
+use common::TestEnv;
+use kebab_app::IngestOpts;
+use kebab_app::reset::{ResetScope, execute};
+use kebab_core::{DocFilter, DocumentStore, SourceScope};
+
+/// Open the SqliteStore and list all `workspace_path` values.
+fn list_doc_paths(env: &TestEnv) -> Vec<String> {
+    use kebab_store_sqlite::SqliteStore;
+    let store = SqliteStore::open(&env.config).unwrap();
+    store.run_migrations().unwrap();
+    store
+        .list_documents(&DocFilter::default())
+        .unwrap()
+        .into_iter()
+        .map(|d| d.doc_path.0)
+        .collect()
+}
+
+#[test]
+fn reset_orphans_only_purges_out_of_scope_docs() {
+    let env = TestEnv::lexical_only();
+
+    // Write three .rs files into the workspace.
+    let a_path = env.workspace_root.join("a.rs");
+    let b_path = env.workspace_root.join("b.rs");
+    let c_path = env.workspace_root.join("c.rs");
+    std::fs::write(&a_path, "// file a\nfn alpha() {}\n").unwrap();
+    std::fs::write(&b_path, "// file b\nfn bravo() {}\n").unwrap();
+    std::fs::write(&c_path, "// file c\nfn charlie() {}\n").unwrap();
+
+    // Ingest all three with a wide scope.
+    let wide_scope = SourceScope {
+        root: env.workspace_root.clone(),
+        include: vec!["**/*.rs".to_string()],
+        exclude: env.config.workspace.exclude.clone(),
+    };
+    let first = kebab_app::ingest_with_config_opts(
+        env.config.clone(),
+        wide_scope,
+        false,
+        IngestOpts::default(),
+    )
+    .expect("first ingest must succeed");
+    // The fixture workspace may contain other .rs files — just assert we
+    // got at least 3 new docs (our a.rs, b.rs, c.rs).
+    assert!(first.new >= 3, "expected at least 3 new docs: {first:?}");
+    assert_eq!(first.errors, 0, "no errors on first ingest");
+
+    // Narrow config to include only a.rs; b.rs + c.rs are still on disk.
+    let mut narrow_cfg = env.config.clone();
+    narrow_cfg.workspace.exclude.clear();
+    // Re-point workspace root (already correct) and restrict include via
+    // the SourceScope in the connector. The config's `workspace.root` is
+    // used by `enumerate_orphans` to build its scope — we keep that
+    // pointing at the workspace root. We simulate narrowing by setting a
+    // glob that only matches a.rs.
+    //
+    // NOTE: `kebab_config::WorkspaceCfg` does not have an `include` field
+    // (it was removed in p9-fb-25). We narrow the scope via the walker
+    // exclude list: exclude b.rs and c.rs explicitly.
+    narrow_cfg.workspace.exclude = vec!["b.rs".to_string(), "c.rs".to_string()];
+
+    // Run orphans-only reset.
+    let report = execute(ResetScope::OrphansOnly, &narrow_cfg)
+        .expect("orphans-only reset must succeed");
+
+    assert_eq!(
+        report.orphans_purged, 2,
+        "expected 2 orphans purged (b.rs + c.rs): {report:?}"
+    );
+
+    let mut purged: Vec<String> = report
+        .purged_paths
+        .iter()
+        .map(|p| p.0.clone())
+        .collect();
+    purged.sort();
+    assert_eq!(
+        purged,
+        vec!["b.rs".to_string(), "c.rs".to_string()],
+        "purged_paths must list b.rs and c.rs in sorted order: {purged:?}"
+    );
+
+    // list docs must show only a.rs (and any pre-existing fixture files
+    // that are not excluded by the narrow config).
+    let doc_paths = list_doc_paths(&env);
+    // The narrow_cfg excludes b.rs + c.rs — they must no longer be in store.
+    assert!(
+        !doc_paths.iter().any(|p| p == "b.rs"),
+        "b.rs must be gone from store after orphans-only reset; got: {doc_paths:?}"
+    );
+    assert!(
+        !doc_paths.iter().any(|p| p == "c.rs"),
+        "c.rs must be gone from store after orphans-only reset; got: {doc_paths:?}"
+    );
+    assert!(
+        doc_paths.iter().any(|p| p == "a.rs"),
+        "a.rs must still be in store; got: {doc_paths:?}"
+    );
+
+    // Both b.rs and c.rs must still exist on the filesystem — no file
+    // removal is performed by orphans-only.
+    assert!(
+        b_path.exists(),
+        "b.rs must still be on disk after orphans-only reset"
+    );
+    assert!(
+        c_path.exists(),
+        "c.rs must still be on disk after orphans-only reset"
+    );
+
+    // Second reset must be idempotent: nothing left to purge.
+    let second = execute(ResetScope::OrphansOnly, &narrow_cfg)
+        .expect("second orphans-only reset must succeed");
+    assert_eq!(
+        second.orphans_purged, 0,
+        "second reset must be idempotent (orphans_purged == 0): {second:?}"
+    );
+    assert!(
+        second.purged_paths.is_empty(),
+        "second reset purged_paths must be empty: {:?}",
+        second.purged_paths
+    );
+}

crates/kebab-app/tests/twin_files_fetch_span.rs

@@ -0,0 +1,176 @@
+//! Regression test for the twin-file fetch_span media-type lookup bug.
+//!
+//! Twin files (identical content at different workspace paths) share one
+//! `assets` row whose PRIMARY KEY is the blake3 content hash. The old
+//! `fetch_span` implementation called
+//! `get_asset_by_workspace_path(&doc.workspace_path)` to check whether the
+//! media type was PDF/audio (and therefore reject span fetch). For a twin
+//! file that lookup could silently return the *other* twin's asset row if
+//! `assets.workspace_path` had been overwritten on the most recent ingest of
+//! the sibling — making the media-type branch decision incorrect.
+//!
+//! Fix: `fetch_span` now uses the 2-step lookup
+//!   `get_document_by_workspace_path` → `doc.source_asset_id` → `get_asset`
+//! so the result is always anchored to the requesting document, not
+//! whichever twin last updated `assets.workspace_path`.
+//!
+//! This test builds a twin-file scenario (two .md files at different paths
+//! with identical content), ingests both, then calls `fetch_span` on each
+//! twin's `doc_id` and asserts it succeeds. Before the fix, if the asset
+//! row's workspace_path happened to point at the wrong twin the span could
+//! return an incorrect `span_not_supported` for a non-PDF/audio file, or
+//! conversely allow span on a PDF twin by accident. After the fix, the
+//! lookup is always doc-specific.
+
+mod common;
+
+use common::TestEnv;
+use kebab_app::ingest_with_config;
+use kebab_core::{DocumentStore, FetchKind, FetchOpts, FetchQuery, IngestItemKind};
+
+#[test]
+fn twin_files_fetch_span_uses_correct_asset() {
+    let env = TestEnv::lexical_only();
+
+    // Write two markdown files with identical content at different paths.
+    let dir_a = env.workspace_root.join("src_a");
+    let dir_b = env.workspace_root.join("src_b");
+    std::fs::create_dir_all(&dir_a).unwrap();
+    std::fs::create_dir_all(&dir_b).unwrap();
+
+    // The content must produce at least 1 line so span fetch is non-trivial.
+    let content = "# Twin\n\nLine one.\n\nLine two.\n\nLine three.\n";
+    std::fs::write(dir_a.join("note.md"), content).unwrap();
+    std::fs::write(dir_b.join("note.md"), content).unwrap();
+
+    // Ingest all files (fixture workspace + our two new twins).
+    let report = ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("ingest must succeed");
+    assert_eq!(report.errors, 0, "no ingest errors; report={report:?}");
+
+    // Both twin paths must appear as New in the report.
+    let items = report.items.as_ref().expect("items must be present");
+    let twin_items: Vec<_> = items
+        .iter()
+        .filter(|i| {
+            i.doc_path.0.ends_with("src_a/note.md")
+                || i.doc_path.0.ends_with("src_b/note.md")
+        })
+        .collect();
+    assert_eq!(
+        twin_items.len(),
+        2,
+        "exactly 2 twin items expected; items={items:?}"
+    );
+    for item in &twin_items {
+        assert_eq!(
+            item.kind,
+            IngestItemKind::New,
+            "each twin must be New; item={item:?}"
+        );
+    }
+
+    // Resolve doc_ids for both workspace paths.
+    // The ingest layer normalises workspace_path to the path relative to
+    // workspace_root (e.g. "src_a/note.md"), so we look up by that form.
+    let store = kebab_store_sqlite::SqliteStore::open(&env.config).unwrap();
+    store.run_migrations().unwrap();
+
+    // Find the twin items by matching on suffix so the test is robust to
+    // however the workspace root is represented.
+    let items = report.items.as_ref().expect("items must be present");
+    let path_a_str = items
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("src_a/note.md"))
+        .map(|i| i.doc_path.0.clone())
+        .expect("src_a/note.md must appear in ingest report");
+    let path_b_str = items
+        .iter()
+        .find(|i| i.doc_path.0.ends_with("src_b/note.md"))
+        .map(|i| i.doc_path.0.clone())
+        .expect("src_b/note.md must appear in ingest report");
+
+    let path_a = kebab_core::WorkspacePath(path_a_str);
+    let path_b = kebab_core::WorkspacePath(path_b_str);
+
+    let doc_a = store
+        .get_document_by_workspace_path(&path_a)
+        .expect("get_document_by_workspace_path path_a")
+        .expect("doc_a must exist after ingest");
+    let doc_b = store
+        .get_document_by_workspace_path(&path_b)
+        .expect("get_document_by_workspace_path path_b")
+        .expect("doc_b must exist after ingest");
+
+    // Both twins share one asset_id (same content hash).
+    assert_eq!(
+        doc_a.source_asset_id, doc_b.source_asset_id,
+        "twin files must share one asset_id"
+    );
+
+    // Open App and issue span fetch on each twin's doc_id.
+    let app = env.app();
+
+    let result_a = app
+        .fetch(
+            FetchQuery::Span {
+                doc_id: doc_a.doc_id.clone(),
+                line_start: 1,
+                line_end: 2,
+            },
+            FetchOpts::default(),
+        )
+        .expect("fetch_span on twin A must succeed for a markdown file");
+    assert_eq!(result_a.kind, FetchKind::Span);
+    assert!(
+        result_a.text.as_deref().is_some_and(|t| !t.is_empty()),
+        "span text for twin A must not be empty"
+    );
+
+    let result_b = app
+        .fetch(
+            FetchQuery::Span {
+                doc_id: doc_b.doc_id.clone(),
+                line_start: 1,
+                line_end: 2,
+            },
+            FetchOpts::default(),
+        )
+        .expect("fetch_span on twin B must succeed for a markdown file");
+    assert_eq!(result_b.kind, FetchKind::Span);
+    assert!(
+        result_b.text.as_deref().is_some_and(|t| !t.is_empty()),
+        "span text for twin B must not be empty"
+    );
+
+    // Ingest again to force the asset.workspace_path flip-flop, then
+    // re-check. Pre-fix this was the scenario that triggered the bug:
+    // after the second ingest the asset row's workspace_path could point
+    // at either twin, making one twin's span fetch behave incorrectly.
+    let report2 = ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("second ingest must succeed");
+    assert_eq!(report2.errors, 0, "no ingest errors on second run; report={report2:?}");
+
+    // Re-open app after second ingest and verify span still works on both.
+    let app2 = env.app();
+
+    app2.fetch(
+        FetchQuery::Span {
+            doc_id: doc_a.doc_id.clone(),
+            line_start: 1,
+            line_end: 3,
+        },
+        FetchOpts::default(),
+    )
+    .expect("fetch_span on twin A after flip-flop must still succeed");
+
+    app2.fetch(
+        FetchQuery::Span {
+            doc_id: doc_b.doc_id.clone(),
+            line_start: 1,
+            line_end: 3,
+        },
+        FetchOpts::default(),
+    )
+    .expect("fetch_span on twin B after flip-flop must still succeed");
+}

crates/kebab-app/tests/twin_files_idempotent.rs

@@ -0,0 +1,90 @@
+//! Regression test for the twin-file idempotency bug.
+//!
+//! Identical-content files at different workspace paths share one
+//! `assets` row (`asset_id` = blake3 content hash, PRIMARY KEY). The
+//! old UPSERT `ON CONFLICT(asset_id) DO UPDATE SET workspace_path =
+//! excluded.workspace_path` made each twin overwrite the other's path
+//! on every ingest, so `get_asset_by_workspace_path(path1)` returned
+//! None (or the wrong twin) → re-process every time.
+//!
+//! Fix: `try_skip_unchanged` now uses `get_document_by_workspace_path`
+//! instead.  `documents.workspace_path` is UNIQUE (V001) so each twin
+//! has its own stable document row.
+//!
+//! Assertion contract:
+//!   1st ingest → 2 New (one per twin)
+//!   2nd ingest → 0 New, 0 Updated, 2 Unchanged
+
+mod common;
+
+use common::TestEnv;
+use kebab_app::ingest_with_config;
+use kebab_core::IngestItemKind;
+
+#[test]
+fn twin_files_second_ingest_is_unchanged() {
+    let env = TestEnv::lexical_only();
+
+    // Write two files with identical content at different paths.
+    let pkg_a = env.workspace_root.join("pkg_a");
+    let pkg_b = env.workspace_root.join("pkg_b");
+    std::fs::create_dir_all(&pkg_a).unwrap();
+    std::fs::create_dir_all(&pkg_b).unwrap();
+
+    let content = b"# shared\nThis content is identical in both files.\n";
+    std::fs::write(pkg_a.join("__init__.py"), content).unwrap();
+    std::fs::write(pkg_b.join("__init__.py"), content).unwrap();
+
+    // First ingest — both files must be New.
+    let first = ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("first ingest must succeed");
+    assert_eq!(first.errors, 0, "first ingest: no errors; report={first:?}");
+
+    let items = first.items.as_ref().expect("items must be present");
+    let twin_items: Vec<_> = items
+        .iter()
+        .filter(|i| {
+            i.doc_path.0.ends_with("__init__.py")
+        })
+        .collect();
+    assert_eq!(
+        twin_items.len(),
+        2,
+        "first ingest: expected exactly 2 __init__.py items; items={items:?}"
+    );
+    for item in &twin_items {
+        assert_eq!(
+            item.kind,
+            IngestItemKind::New,
+            "first ingest: each twin must be New; item={item:?}"
+        );
+    }
+
+    // Second ingest — same files, same content → both must be Unchanged.
+    let second = ingest_with_config(env.config.clone(), env.scope(), false)
+        .expect("second ingest must succeed");
+    assert_eq!(second.errors, 0, "second ingest: no errors; report={second:?}");
+    assert_eq!(second.new, 0, "second ingest: no new docs; report={second:?}");
+    assert_eq!(
+        second.updated, 0,
+        "second ingest: no updated docs (twin-file bug would set this to 2); report={second:?}"
+    );
+
+    let second_items = second.items.as_ref().expect("items must be present");
+    let twin_items2: Vec<_> = second_items
+        .iter()
+        .filter(|i| i.doc_path.0.ends_with("__init__.py"))
+        .collect();
+    assert_eq!(
+        twin_items2.len(),
+        2,
+        "second ingest: expected exactly 2 __init__.py items; items={second_items:?}"
+    );
+    for item in &twin_items2 {
+        assert_eq!(
+            item.kind,
+            IngestItemKind::Unchanged,
+            "second ingest: each twin must be Unchanged; item={item:?}"
+        );
+    }
+}

crates/kebab-chunk/Cargo.toml

@@ -13,14 +13,16 @@ serde_json_canonicalizer   = "0.3"
 blake3                     = { workspace = true }
 anyhow                     = { workspace = true }
 tracing                    = { workspace = true }
+serde_yaml                 = { workspace = true }
 
 [dev-dependencies]
-# kb-parse-md / kb-normalize are dev-only — used by the snapshot integration
-# test to build a CanonicalDocument from a fixture Markdown file. Forbidden as
-# regular deps per design §8 (chunker consumes CanonicalDocument from kb-core
-# only); `cargo tree -p kb-chunk --depth 1` (default scope, excludes dev-deps)
-# confirms this.
-kebab-parse-md = { path = "../kebab-parse-md" }
-kebab-normalize = { path = "../kebab-normalize" }
-serde_json      = { workspace = true }
-time            = { workspace = true }
+# kb-parse-md / kb-normalize / kb-parse-code are dev-only — used by the
+# snapshot integration tests to build a CanonicalDocument from fixture files.
+# Forbidden as regular deps per design §8 (chunker consumes CanonicalDocument
+# from kb-core only); `cargo tree -p kb-chunk --depth 1` (default scope,
+# excludes dev-deps) confirms this.
+kebab-parse-md   = { path = "../kebab-parse-md" }
+kebab-parse-code = { path = "../kebab-parse-code" }
+kebab-normalize  = { path = "../kebab-normalize" }
+serde_json       = { workspace = true }
+time             = { workspace = true }

crates/kebab-chunk/src/code_c_ast_v1.rs

@@ -0,0 +1,322 @@
+//! `code-c-ast-v1` — maps a tree-sitter-derived C AST
+//! `CanonicalDocument` (one `Block::Code` per semantic unit, each with
+//! `SourceSpan::Code`) to chunks 1:1. A unit longer than
+//! `AST_CHUNK_MAX_LINES` is split into `<symbol> [part i/N]` sub-chunks
+//! at blank-line paragraph boundaries (design §9.1 oversize fallback).
+//!
+//! tree-sitter is intentionally NOT a dependency here: AST work is
+//! parser-side (`kebab-parse-code`, design §6.3). This chunker only
+//! consumes the `CanonicalDocument`.
+//!
+//! `AST_CHUNK_MAX_LINES` is a constant matching
+//! `IngestCodeCfg::default().ast_chunk_max_lines` (200). Per-medium
+//! config threading needs a chunker registry (P+); same deviation
+//! pattern as `pdf-page-v1`'s pinned `chunker_version`
+//! (`tasks/HOTFIXES.md`).
+
+use kebab_core::{
+    Block, BlockId, CanonicalDocument, Chunk, ChunkPolicy, Chunker, ChunkerVersion, DocumentId,
+    SourceSpan, id_for_chunk,
+};
+
+const VERSION_LABEL: &str = "code-c-ast-v1";
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+const AST_CHUNK_MAX_LINES: u32 = 200;
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeCAstV1Chunker;
+
+impl Chunker for CodeCAstV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        let bytes = serde_json_canonicalizer::to_vec(policy)
+            .expect("canonical JSON serialization of ChunkPolicy must not fail");
+        let hex = blake3::hash(&bytes).to_hex().to_string();
+        hex[..POLICY_HASH_HEX_LEN].to_string()
+    }
+
+    fn chunk(
+        &self,
+        doc: &CanonicalDocument,
+        policy: &ChunkPolicy,
+    ) -> anyhow::Result<Vec<Chunk>> {
+        for b in &doc.blocks {
+            let c = match b {
+                Block::Code(c) => c,
+                _ => anyhow::bail!(
+                    "CodeCAstV1Chunker only handles code docs (got non-Code block)"
+                ),
+            };
+            if !matches!(c.common.source_span, SourceSpan::Code { .. }) {
+                anyhow::bail!(
+                    "CodeCAstV1Chunker only handles code docs (got non-Code source_span)"
+                );
+            }
+        }
+
+        let base_policy_hash = self.policy_hash(policy);
+        let chunker_version = self.chunker_version();
+        let mut out: Vec<Chunk> = Vec::new();
+
+        for b in &doc.blocks {
+            let cb = match b {
+                Block::Code(c) => c,
+                _ => unreachable!("validated above"),
+            };
+            let (ls, le, symbol, lang) = match &cb.common.source_span {
+                SourceSpan::Code { line_start, line_end, symbol, lang } => {
+                    (*line_start, *line_end, symbol.clone(), lang.clone())
+                }
+                _ => unreachable!("validated above"),
+            };
+            let block_ids: Vec<BlockId> = vec![cb.common.block_id.clone()];
+            let span_lines = le.saturating_sub(ls) + 1;
+
+            if span_lines <= AST_CHUNK_MAX_LINES {
+                let span = SourceSpan::Code {
+                    line_start: ls,
+                    line_end: le,
+                    symbol: symbol.clone(),
+                    lang: lang.clone(),
+                };
+                out.push(make_chunk(
+                    doc, &chunker_version, &block_ids, &base_policy_hash,
+                    None, span, cb.code.clone(),
+                ));
+            } else {
+                let parts = split_oversize(&cb.code);
+                let n = parts.len();
+                for (i, (off_start, off_end, text)) in parts.into_iter().enumerate() {
+                    let part_ls = ls + off_start;
+                    let part_le = ls + off_end;
+                    let part_sym = symbol
+                        .as_ref()
+                        .map(|s| format!("{s} [part {}/{n}]", i + 1));
+                    let span = SourceSpan::Code {
+                        line_start: part_ls,
+                        line_end: part_le,
+                        symbol: part_sym,
+                        lang: lang.clone(),
+                    };
+                    out.push(make_chunk(
+                        doc, &chunker_version, &block_ids, &base_policy_hash,
+                        Some(part_ls), span, text,
+                    ));
+                }
+            }
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = out.len(),
+            "code-c-ast-v1 chunked",
+        );
+        Ok(out)
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn make_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    block_ids: &[BlockId],
+    base_policy_hash: &str,
+    split_key: Option<u32>,
+    span: SourceSpan,
+    text: String,
+) -> Chunk {
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+    let chunk_id = id_for_chunk(&doc.doc_id, chunker_version, block_ids, &id_hash);
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids: block_ids.to_vec(),
+        text,
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}
+
+/// Split an oversize unit at blank-line paragraph boundaries, greedily
+/// gluing paragraphs until ~`AST_CHUNK_MAX_LINES` lines accumulate.
+/// Returns `(line_offset_start, line_offset_end, text)` where offsets are
+/// 0-based within the unit (caller adds the unit's absolute `line_start`).
+fn split_oversize(code: &str) -> Vec<(u32, u32, String)> {
+    let lines: Vec<&str> = code.split('\n').collect();
+    let total = lines.len() as u32;
+    let mut out: Vec<(u32, u32, String)> = Vec::new();
+    let mut start: u32 = 0;
+    while start < total {
+        let mut end = (start + AST_CHUNK_MAX_LINES).min(total);
+        let floor = start + (AST_CHUNK_MAX_LINES * 4 / 5);
+        if end < total {
+            if let Some(b) = (floor.min(end)..end)
+                .rev()
+                .find(|&i| lines[i as usize].trim().is_empty())
+            {
+                end = b + 1;
+            }
+        }
+        let text = lines[start as usize..end as usize].join("\n");
+        out.push((start, end.saturating_sub(1), text));
+        start = end;
+    }
+    if out.is_empty() {
+        out.push((0, total.saturating_sub(1), code.to_string()));
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{
+        Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+        SourceSpan, id_for_block, id_for_doc, AssetId, Lang, Metadata, ParserVersion, Provenance,
+        SourceType, TrustLevel, WorkspacePath,
+    };
+    use time::OffsetDateTime;
+
+    fn code_doc(units: &[(&str, u32, u32, &str)]) -> CanonicalDocument {
+        let wp = WorkspacePath("crates/x/src/a.c".into());
+        let aid = AssetId("a".repeat(64));
+        let pv = ParserVersion("code-c-v1".into());
+        let doc_id = id_for_doc(&wp, &aid, &pv);
+        let blocks = units
+            .iter()
+            .enumerate()
+            .map(|(i, (sym, ls, le, code))| {
+                let span = SourceSpan::Code {
+                    line_start: *ls,
+                    line_end: *le,
+                    symbol: Some((*sym).to_string()),
+                    lang: Some("c".into()),
+                };
+                let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+                Block::Code(CodeBlock {
+                    common: CommonBlock { block_id: bid, heading_path: vec![], source_span: span },
+                    lang: Some("c".into()),
+                    code: (*code).to_string(),
+                })
+            })
+            .collect();
+        CanonicalDocument {
+            doc_id, source_asset_id: aid, workspace_path: wp, title: "a".into(),
+            lang: Lang("und".into()), blocks,
+            metadata: Metadata {
+                aliases: vec![], tags: vec![],
+                created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                source_type: SourceType::Note, trust_level: TrustLevel::Primary,
+                user_id_alias: None, user: Default::default(),
+                repo: Some("kebab".into()), git_branch: Some("main".into()),
+                git_commit: Some("0".repeat(40)), code_lang: Some("c".into()),
+            },
+            provenance: Provenance { events: vec![] },
+            parser_version: pv, schema_version: 1, doc_version: 1,
+            last_chunker_version: None, last_embedding_version: None,
+        }
+    }
+    fn policy() -> ChunkPolicy {
+        ChunkPolicy { target_tokens: 500, overlap_tokens: 80,
+            respect_markdown_headings: false,
+            chunker_version: ChunkerVersion(VERSION_LABEL.into()) }
+    }
+
+    #[test]
+    fn chunker_version_is_code_c_ast_v1() {
+        assert_eq!(CodeCAstV1Chunker.chunker_version(),
+            ChunkerVersion("code-c-ast-v1".into()));
+    }
+
+    #[test]
+    fn one_chunk_per_unit_preserves_code_span() {
+        let doc = code_doc(&[
+            ("parse", 1, 3, "int parse() {\n\t// x\n}"),
+            ("print", 5, 7, "void print() {\n\t//\n\treturn;\n}"),
+        ]);
+        let chunks = CodeCAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert_eq!(chunks.len(), 2);
+        for c in &chunks {
+            assert_eq!(c.source_spans.len(), 1);
+            assert!(matches!(c.source_spans[0], SourceSpan::Code { .. }));
+            assert_eq!(c.heading_path, Vec::<String>::new());
+            assert_eq!(c.chunker_version.0, "code-c-ast-v1");
+        }
+        match &chunks[0].source_spans[0] {
+            SourceSpan::Code { symbol, line_start, line_end, .. } => {
+                assert_eq!(symbol.as_deref(), Some("parse"));
+                assert_eq!((*line_start, *line_end), (1, 3));
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn oversize_unit_splits_into_parts_with_unique_ids() {
+        let body = (0..500).map(|i| format!("\tx{i} = {i};\n")).collect::<Vec<_>>().join("");
+        let code = format!("int big() {{\n{body}\n}}");
+        let doc = code_doc(&[("big", 1, 502, &code)]);
+        let chunks = CodeCAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert!(chunks.len() >= 2, "oversize unit must split, got {}", chunks.len());
+        for c in &chunks {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    assert!(symbol.as_deref().unwrap().starts_with("big [part "),
+                        "part-numbered symbol, got {symbol:?}");
+                }
+                _ => unreachable!(),
+            }
+        }
+        let mut ids: Vec<&str> = chunks.iter().map(|c| c.chunk_id.0.as_str()).collect();
+        let n = ids.len(); ids.sort(); ids.dedup();
+        assert_eq!(ids.len(), n, "chunk_ids unique across split parts");
+    }
+
+    #[test]
+    fn non_code_doc_errors() {
+        use kebab_core::TextBlock;
+        let mut doc = code_doc(&[("parse", 1, 1, "int parse() {}")]);
+        doc.blocks = vec![Block::Paragraph(TextBlock {
+            common: CommonBlock {
+                block_id: kebab_core::BlockId("b".into()),
+                heading_path: vec![],
+                source_span: SourceSpan::Line { start: 1, end: 1 },
+            },
+            text: "x".into(), inlines: vec![],
+        })];
+        let err = CodeCAstV1Chunker.chunk(&doc, &policy()).unwrap_err();
+        assert!(err.to_string().contains("CodeCAstV1Chunker"));
+    }
+
+    #[test]
+    fn deterministic_chunk_ids_1000() {
+        let doc = code_doc(&[("parse", 1, 2, "int parse() {}\n")]);
+        let base: Vec<String> = CodeCAstV1Chunker.chunk(&doc, &policy())
+            .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+        for _ in 0..1000 {
+            let again: Vec<String> = CodeCAstV1Chunker.chunk(&doc, &policy())
+                .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+            assert_eq!(again, base);
+        }
+    }
+
+    #[test]
+    fn policy_hash_matches_md_heading_v1() {
+        let p = policy();
+        assert_eq!(CodeCAstV1Chunker.policy_hash(&p),
+            crate::MdHeadingV1Chunker.policy_hash(&p));
+    }
+}

crates/kebab-chunk/src/code_cpp_ast_v1.rs

@@ -0,0 +1,322 @@
+//! `code-cpp-ast-v1` — maps a tree-sitter-derived C++ AST
+//! `CanonicalDocument` (one `Block::Code` per semantic unit, each with
+//! `SourceSpan::Code`) to chunks 1:1. A unit longer than
+//! `AST_CHUNK_MAX_LINES` is split into `<symbol> [part i/N]` sub-chunks
+//! at blank-line paragraph boundaries (design §9.1 oversize fallback).
+//!
+//! tree-sitter is intentionally NOT a dependency here: AST work is
+//! parser-side (`kebab-parse-code`, design §6.3). This chunker only
+//! consumes the `CanonicalDocument`.
+//!
+//! `AST_CHUNK_MAX_LINES` is a constant matching
+//! `IngestCodeCfg::default().ast_chunk_max_lines` (200). Per-medium
+//! config threading needs a chunker registry (P+); same deviation
+//! pattern as `pdf-page-v1`'s pinned `chunker_version`
+//! (`tasks/HOTFIXES.md`).
+
+use kebab_core::{
+    Block, BlockId, CanonicalDocument, Chunk, ChunkPolicy, Chunker, ChunkerVersion, DocumentId,
+    SourceSpan, id_for_chunk,
+};
+
+const VERSION_LABEL: &str = "code-cpp-ast-v1";
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+const AST_CHUNK_MAX_LINES: u32 = 200;
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeCppAstV1Chunker;
+
+impl Chunker for CodeCppAstV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        let bytes = serde_json_canonicalizer::to_vec(policy)
+            .expect("canonical JSON serialization of ChunkPolicy must not fail");
+        let hex = blake3::hash(&bytes).to_hex().to_string();
+        hex[..POLICY_HASH_HEX_LEN].to_string()
+    }
+
+    fn chunk(
+        &self,
+        doc: &CanonicalDocument,
+        policy: &ChunkPolicy,
+    ) -> anyhow::Result<Vec<Chunk>> {
+        for b in &doc.blocks {
+            let c = match b {
+                Block::Code(c) => c,
+                _ => anyhow::bail!(
+                    "CodeCppAstV1Chunker only handles code docs (got non-Code block)"
+                ),
+            };
+            if !matches!(c.common.source_span, SourceSpan::Code { .. }) {
+                anyhow::bail!(
+                    "CodeCppAstV1Chunker only handles code docs (got non-Code source_span)"
+                );
+            }
+        }
+
+        let base_policy_hash = self.policy_hash(policy);
+        let chunker_version = self.chunker_version();
+        let mut out: Vec<Chunk> = Vec::new();
+
+        for b in &doc.blocks {
+            let cb = match b {
+                Block::Code(c) => c,
+                _ => unreachable!("validated above"),
+            };
+            let (ls, le, symbol, lang) = match &cb.common.source_span {
+                SourceSpan::Code { line_start, line_end, symbol, lang } => {
+                    (*line_start, *line_end, symbol.clone(), lang.clone())
+                }
+                _ => unreachable!("validated above"),
+            };
+            let block_ids: Vec<BlockId> = vec![cb.common.block_id.clone()];
+            let span_lines = le.saturating_sub(ls) + 1;
+
+            if span_lines <= AST_CHUNK_MAX_LINES {
+                let span = SourceSpan::Code {
+                    line_start: ls,
+                    line_end: le,
+                    symbol: symbol.clone(),
+                    lang: lang.clone(),
+                };
+                out.push(make_chunk(
+                    doc, &chunker_version, &block_ids, &base_policy_hash,
+                    None, span, cb.code.clone(),
+                ));
+            } else {
+                let parts = split_oversize(&cb.code);
+                let n = parts.len();
+                for (i, (off_start, off_end, text)) in parts.into_iter().enumerate() {
+                    let part_ls = ls + off_start;
+                    let part_le = ls + off_end;
+                    let part_sym = symbol
+                        .as_ref()
+                        .map(|s| format!("{s} [part {}/{n}]", i + 1));
+                    let span = SourceSpan::Code {
+                        line_start: part_ls,
+                        line_end: part_le,
+                        symbol: part_sym,
+                        lang: lang.clone(),
+                    };
+                    out.push(make_chunk(
+                        doc, &chunker_version, &block_ids, &base_policy_hash,
+                        Some(part_ls), span, text,
+                    ));
+                }
+            }
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = out.len(),
+            "code-cpp-ast-v1 chunked",
+        );
+        Ok(out)
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn make_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    block_ids: &[BlockId],
+    base_policy_hash: &str,
+    split_key: Option<u32>,
+    span: SourceSpan,
+    text: String,
+) -> Chunk {
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+    let chunk_id = id_for_chunk(&doc.doc_id, chunker_version, block_ids, &id_hash);
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids: block_ids.to_vec(),
+        text,
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}
+
+/// Split an oversize unit at blank-line paragraph boundaries, greedily
+/// gluing paragraphs until ~`AST_CHUNK_MAX_LINES` lines accumulate.
+/// Returns `(line_offset_start, line_offset_end, text)` where offsets are
+/// 0-based within the unit (caller adds the unit's absolute `line_start`).
+fn split_oversize(code: &str) -> Vec<(u32, u32, String)> {
+    let lines: Vec<&str> = code.split('\n').collect();
+    let total = lines.len() as u32;
+    let mut out: Vec<(u32, u32, String)> = Vec::new();
+    let mut start: u32 = 0;
+    while start < total {
+        let mut end = (start + AST_CHUNK_MAX_LINES).min(total);
+        let floor = start + (AST_CHUNK_MAX_LINES * 4 / 5);
+        if end < total {
+            if let Some(b) = (floor.min(end)..end)
+                .rev()
+                .find(|&i| lines[i as usize].trim().is_empty())
+            {
+                end = b + 1;
+            }
+        }
+        let text = lines[start as usize..end as usize].join("\n");
+        out.push((start, end.saturating_sub(1), text));
+        start = end;
+    }
+    if out.is_empty() {
+        out.push((0, total.saturating_sub(1), code.to_string()));
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{
+        Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+        SourceSpan, id_for_block, id_for_doc, AssetId, Lang, Metadata, ParserVersion, Provenance,
+        SourceType, TrustLevel, WorkspacePath,
+    };
+    use time::OffsetDateTime;
+
+    fn code_doc(units: &[(&str, u32, u32, &str)]) -> CanonicalDocument {
+        let wp = WorkspacePath("crates/x/src/a.cpp".into());
+        let aid = AssetId("a".repeat(64));
+        let pv = ParserVersion("code-cpp-v1".into());
+        let doc_id = id_for_doc(&wp, &aid, &pv);
+        let blocks = units
+            .iter()
+            .enumerate()
+            .map(|(i, (sym, ls, le, code))| {
+                let span = SourceSpan::Code {
+                    line_start: *ls,
+                    line_end: *le,
+                    symbol: Some((*sym).to_string()),
+                    lang: Some("cpp".into()),
+                };
+                let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+                Block::Code(CodeBlock {
+                    common: CommonBlock { block_id: bid, heading_path: vec![], source_span: span },
+                    lang: Some("cpp".into()),
+                    code: (*code).to_string(),
+                })
+            })
+            .collect();
+        CanonicalDocument {
+            doc_id, source_asset_id: aid, workspace_path: wp, title: "a".into(),
+            lang: Lang("und".into()), blocks,
+            metadata: Metadata {
+                aliases: vec![], tags: vec![],
+                created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                source_type: SourceType::Note, trust_level: TrustLevel::Primary,
+                user_id_alias: None, user: Default::default(),
+                repo: Some("kebab".into()), git_branch: Some("main".into()),
+                git_commit: Some("0".repeat(40)), code_lang: Some("cpp".into()),
+            },
+            provenance: Provenance { events: vec![] },
+            parser_version: pv, schema_version: 1, doc_version: 1,
+            last_chunker_version: None, last_embedding_version: None,
+        }
+    }
+    fn policy() -> ChunkPolicy {
+        ChunkPolicy { target_tokens: 500, overlap_tokens: 80,
+            respect_markdown_headings: false,
+            chunker_version: ChunkerVersion(VERSION_LABEL.into()) }
+    }
+
+    #[test]
+    fn chunker_version_is_code_cpp_ast_v1() {
+        assert_eq!(CodeCppAstV1Chunker.chunker_version(),
+            ChunkerVersion("code-cpp-ast-v1".into()));
+    }
+
+    #[test]
+    fn one_chunk_per_unit_preserves_code_span() {
+        let doc = code_doc(&[
+            ("parse", 1, 3, "int parse() {\n\t// x\n}"),
+            ("print", 5, 7, "void print() {\n\t//\n\treturn;\n}"),
+        ]);
+        let chunks = CodeCppAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert_eq!(chunks.len(), 2);
+        for c in &chunks {
+            assert_eq!(c.source_spans.len(), 1);
+            assert!(matches!(c.source_spans[0], SourceSpan::Code { .. }));
+            assert_eq!(c.heading_path, Vec::<String>::new());
+            assert_eq!(c.chunker_version.0, "code-cpp-ast-v1");
+        }
+        match &chunks[0].source_spans[0] {
+            SourceSpan::Code { symbol, line_start, line_end, .. } => {
+                assert_eq!(symbol.as_deref(), Some("parse"));
+                assert_eq!((*line_start, *line_end), (1, 3));
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn oversize_unit_splits_into_parts_with_unique_ids() {
+        let body = (0..500).map(|i| format!("\tx{i} = {i};\n")).collect::<Vec<_>>().join("");
+        let code = format!("int big() {{\n{body}\n}}");
+        let doc = code_doc(&[("big", 1, 502, &code)]);
+        let chunks = CodeCppAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert!(chunks.len() >= 2, "oversize unit must split, got {}", chunks.len());
+        for c in &chunks {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    assert!(symbol.as_deref().unwrap().starts_with("big [part "),
+                        "part-numbered symbol, got {symbol:?}");
+                }
+                _ => unreachable!(),
+            }
+        }
+        let mut ids: Vec<&str> = chunks.iter().map(|c| c.chunk_id.0.as_str()).collect();
+        let n = ids.len(); ids.sort(); ids.dedup();
+        assert_eq!(ids.len(), n, "chunk_ids unique across split parts");
+    }
+
+    #[test]
+    fn non_code_doc_errors() {
+        use kebab_core::TextBlock;
+        let mut doc = code_doc(&[("parse", 1, 1, "int parse() {}")]);
+        doc.blocks = vec![Block::Paragraph(TextBlock {
+            common: CommonBlock {
+                block_id: kebab_core::BlockId("b".into()),
+                heading_path: vec![],
+                source_span: SourceSpan::Line { start: 1, end: 1 },
+            },
+            text: "x".into(), inlines: vec![],
+        })];
+        let err = CodeCppAstV1Chunker.chunk(&doc, &policy()).unwrap_err();
+        assert!(err.to_string().contains("CodeCppAstV1Chunker"));
+    }
+
+    #[test]
+    fn deterministic_chunk_ids_1000() {
+        let doc = code_doc(&[("parse", 1, 2, "int parse() {}\n")]);
+        let base: Vec<String> = CodeCppAstV1Chunker.chunk(&doc, &policy())
+            .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+        for _ in 0..1000 {
+            let again: Vec<String> = CodeCppAstV1Chunker.chunk(&doc, &policy())
+                .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+            assert_eq!(again, base);
+        }
+    }
+
+    #[test]
+    fn policy_hash_matches_md_heading_v1() {
+        let p = policy();
+        assert_eq!(CodeCppAstV1Chunker.policy_hash(&p),
+            crate::MdHeadingV1Chunker.policy_hash(&p));
+    }
+}

crates/kebab-chunk/src/code_go_ast_v1.rs

@@ -0,0 +1,322 @@
+//! `code-go-ast-v1` — maps a tree-sitter-derived Go AST
+//! `CanonicalDocument` (one `Block::Code` per semantic unit, each with
+//! `SourceSpan::Code`) to chunks 1:1. A unit longer than
+//! `AST_CHUNK_MAX_LINES` is split into `<symbol> [part i/N]` sub-chunks
+//! at blank-line paragraph boundaries (design §9.1 oversize fallback).
+//!
+//! tree-sitter is intentionally NOT a dependency here: AST work is
+//! parser-side (`kebab-parse-code`, design §6.3). This chunker only
+//! consumes the `CanonicalDocument`.
+//!
+//! `AST_CHUNK_MAX_LINES` is a constant matching
+//! `IngestCodeCfg::default().ast_chunk_max_lines` (200). Per-medium
+//! config threading needs a chunker registry (P+); same deviation
+//! pattern as `pdf-page-v1`'s pinned `chunker_version`
+//! (`tasks/HOTFIXES.md`).
+
+use kebab_core::{
+    Block, BlockId, CanonicalDocument, Chunk, ChunkPolicy, Chunker, ChunkerVersion, DocumentId,
+    SourceSpan, id_for_chunk,
+};
+
+const VERSION_LABEL: &str = "code-go-ast-v1";
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+const AST_CHUNK_MAX_LINES: u32 = 200;
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeGoAstV1Chunker;
+
+impl Chunker for CodeGoAstV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        let bytes = serde_json_canonicalizer::to_vec(policy)
+            .expect("canonical JSON serialization of ChunkPolicy must not fail");
+        let hex = blake3::hash(&bytes).to_hex().to_string();
+        hex[..POLICY_HASH_HEX_LEN].to_string()
+    }
+
+    fn chunk(
+        &self,
+        doc: &CanonicalDocument,
+        policy: &ChunkPolicy,
+    ) -> anyhow::Result<Vec<Chunk>> {
+        for b in &doc.blocks {
+            let c = match b {
+                Block::Code(c) => c,
+                _ => anyhow::bail!(
+                    "CodeGoAstV1Chunker only handles code docs (got non-Code block)"
+                ),
+            };
+            if !matches!(c.common.source_span, SourceSpan::Code { .. }) {
+                anyhow::bail!(
+                    "CodeGoAstV1Chunker only handles code docs (got non-Code source_span)"
+                );
+            }
+        }
+
+        let base_policy_hash = self.policy_hash(policy);
+        let chunker_version = self.chunker_version();
+        let mut out: Vec<Chunk> = Vec::new();
+
+        for b in &doc.blocks {
+            let cb = match b {
+                Block::Code(c) => c,
+                _ => unreachable!("validated above"),
+            };
+            let (ls, le, symbol, lang) = match &cb.common.source_span {
+                SourceSpan::Code { line_start, line_end, symbol, lang } => {
+                    (*line_start, *line_end, symbol.clone(), lang.clone())
+                }
+                _ => unreachable!("validated above"),
+            };
+            let block_ids: Vec<BlockId> = vec![cb.common.block_id.clone()];
+            let span_lines = le.saturating_sub(ls) + 1;
+
+            if span_lines <= AST_CHUNK_MAX_LINES {
+                let span = SourceSpan::Code {
+                    line_start: ls,
+                    line_end: le,
+                    symbol: symbol.clone(),
+                    lang: lang.clone(),
+                };
+                out.push(make_chunk(
+                    doc, &chunker_version, &block_ids, &base_policy_hash,
+                    None, span, cb.code.clone(),
+                ));
+            } else {
+                let parts = split_oversize(&cb.code);
+                let n = parts.len();
+                for (i, (off_start, off_end, text)) in parts.into_iter().enumerate() {
+                    let part_ls = ls + off_start;
+                    let part_le = ls + off_end;
+                    let part_sym = symbol
+                        .as_ref()
+                        .map(|s| format!("{s} [part {}/{n}]", i + 1));
+                    let span = SourceSpan::Code {
+                        line_start: part_ls,
+                        line_end: part_le,
+                        symbol: part_sym,
+                        lang: lang.clone(),
+                    };
+                    out.push(make_chunk(
+                        doc, &chunker_version, &block_ids, &base_policy_hash,
+                        Some(part_ls), span, text,
+                    ));
+                }
+            }
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = out.len(),
+            "code-go-ast-v1 chunked",
+        );
+        Ok(out)
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn make_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    block_ids: &[BlockId],
+    base_policy_hash: &str,
+    split_key: Option<u32>,
+    span: SourceSpan,
+    text: String,
+) -> Chunk {
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+    let chunk_id = id_for_chunk(&doc.doc_id, chunker_version, block_ids, &id_hash);
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids: block_ids.to_vec(),
+        text,
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}
+
+/// Split an oversize unit at blank-line paragraph boundaries, greedily
+/// gluing paragraphs until ~`AST_CHUNK_MAX_LINES` lines accumulate.
+/// Returns `(line_offset_start, line_offset_end, text)` where offsets are
+/// 0-based within the unit (caller adds the unit's absolute `line_start`).
+fn split_oversize(code: &str) -> Vec<(u32, u32, String)> {
+    let lines: Vec<&str> = code.split('\n').collect();
+    let total = lines.len() as u32;
+    let mut out: Vec<(u32, u32, String)> = Vec::new();
+    let mut start: u32 = 0;
+    while start < total {
+        let mut end = (start + AST_CHUNK_MAX_LINES).min(total);
+        let floor = start + (AST_CHUNK_MAX_LINES * 4 / 5);
+        if end < total {
+            if let Some(b) = (floor.min(end)..end)
+                .rev()
+                .find(|&i| lines[i as usize].trim().is_empty())
+            {
+                end = b + 1;
+            }
+        }
+        let text = lines[start as usize..end as usize].join("\n");
+        out.push((start, end.saturating_sub(1), text));
+        start = end;
+    }
+    if out.is_empty() {
+        out.push((0, total.saturating_sub(1), code.to_string()));
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{
+        Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+        SourceSpan, id_for_block, id_for_doc, AssetId, Lang, Metadata, ParserVersion, Provenance,
+        SourceType, TrustLevel, WorkspacePath,
+    };
+    use time::OffsetDateTime;
+
+    fn code_doc(units: &[(&str, u32, u32, &str)]) -> CanonicalDocument {
+        let wp = WorkspacePath("crates/x/src/a.go".into());
+        let aid = AssetId("a".repeat(64));
+        let pv = ParserVersion("code-go-v1".into());
+        let doc_id = id_for_doc(&wp, &aid, &pv);
+        let blocks = units
+            .iter()
+            .enumerate()
+            .map(|(i, (sym, ls, le, code))| {
+                let span = SourceSpan::Code {
+                    line_start: *ls,
+                    line_end: *le,
+                    symbol: Some((*sym).to_string()),
+                    lang: Some("go".into()),
+                };
+                let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+                Block::Code(CodeBlock {
+                    common: CommonBlock { block_id: bid, heading_path: vec![], source_span: span },
+                    lang: Some("go".into()),
+                    code: (*code).to_string(),
+                })
+            })
+            .collect();
+        CanonicalDocument {
+            doc_id, source_asset_id: aid, workspace_path: wp, title: "a".into(),
+            lang: Lang("und".into()), blocks,
+            metadata: Metadata {
+                aliases: vec![], tags: vec![],
+                created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                source_type: SourceType::Note, trust_level: TrustLevel::Primary,
+                user_id_alias: None, user: Default::default(),
+                repo: Some("kebab".into()), git_branch: Some("main".into()),
+                git_commit: Some("0".repeat(40)), code_lang: Some("go".into()),
+            },
+            provenance: Provenance { events: vec![] },
+            parser_version: pv, schema_version: 1, doc_version: 1,
+            last_chunker_version: None, last_embedding_version: None,
+        }
+    }
+    fn policy() -> ChunkPolicy {
+        ChunkPolicy { target_tokens: 500, overlap_tokens: 80,
+            respect_markdown_headings: false,
+            chunker_version: ChunkerVersion(VERSION_LABEL.into()) }
+    }
+
+    #[test]
+    fn chunker_version_is_code_go_ast_v1() {
+        assert_eq!(CodeGoAstV1Chunker.chunker_version(),
+            ChunkerVersion("code-go-ast-v1".into()));
+    }
+
+    #[test]
+    fn one_chunk_per_unit_preserves_code_span() {
+        let doc = code_doc(&[
+            ("parse", 1, 3, "func parse() {\n\t// x\n}"),
+            ("Foo.double", 5, 7, "func double() int {\n\t//\n\treturn 0\n}"),
+        ]);
+        let chunks = CodeGoAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert_eq!(chunks.len(), 2);
+        for c in &chunks {
+            assert_eq!(c.source_spans.len(), 1);
+            assert!(matches!(c.source_spans[0], SourceSpan::Code { .. }));
+            assert_eq!(c.heading_path, Vec::<String>::new());
+            assert_eq!(c.chunker_version.0, "code-go-ast-v1");
+        }
+        match &chunks[0].source_spans[0] {
+            SourceSpan::Code { symbol, line_start, line_end, .. } => {
+                assert_eq!(symbol.as_deref(), Some("parse"));
+                assert_eq!((*line_start, *line_end), (1, 3));
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn oversize_unit_splits_into_parts_with_unique_ids() {
+        let body = (0..500).map(|i| format!("\tx{i} := {i}")).collect::<Vec<_>>().join("\n");
+        let code = format!("func big() {{\n{body}\n}}");
+        let doc = code_doc(&[("big", 1, 502, &code)]);
+        let chunks = CodeGoAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert!(chunks.len() >= 2, "oversize unit must split, got {}", chunks.len());
+        for c in &chunks {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    assert!(symbol.as_deref().unwrap().starts_with("big [part "),
+                        "part-numbered symbol, got {symbol:?}");
+                }
+                _ => unreachable!(),
+            }
+        }
+        let mut ids: Vec<&str> = chunks.iter().map(|c| c.chunk_id.0.as_str()).collect();
+        let n = ids.len(); ids.sort(); ids.dedup();
+        assert_eq!(ids.len(), n, "chunk_ids unique across split parts");
+    }
+
+    #[test]
+    fn non_code_doc_errors() {
+        use kebab_core::TextBlock;
+        let mut doc = code_doc(&[("parse", 1, 1, "func parse() {}")]);
+        doc.blocks = vec![Block::Paragraph(TextBlock {
+            common: CommonBlock {
+                block_id: kebab_core::BlockId("b".into()),
+                heading_path: vec![],
+                source_span: SourceSpan::Line { start: 1, end: 1 },
+            },
+            text: "x".into(), inlines: vec![],
+        })];
+        let err = CodeGoAstV1Chunker.chunk(&doc, &policy()).unwrap_err();
+        assert!(err.to_string().contains("CodeGoAstV1Chunker"));
+    }
+
+    #[test]
+    fn deterministic_chunk_ids_1000() {
+        let doc = code_doc(&[("parse", 1, 2, "func parse() {}\n")]);
+        let base: Vec<String> = CodeGoAstV1Chunker.chunk(&doc, &policy())
+            .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+        for _ in 0..1000 {
+            let again: Vec<String> = CodeGoAstV1Chunker.chunk(&doc, &policy())
+                .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+            assert_eq!(again, base);
+        }
+    }
+
+    #[test]
+    fn policy_hash_matches_md_heading_v1() {
+        let p = policy();
+        assert_eq!(CodeGoAstV1Chunker.policy_hash(&p),
+            crate::MdHeadingV1Chunker.policy_hash(&p));
+    }
+}

crates/kebab-chunk/src/code_java_ast_v1.rs

@@ -0,0 +1,322 @@
+//! `code-java-ast-v1` — maps a tree-sitter-derived Java AST
+//! `CanonicalDocument` (one `Block::Code` per semantic unit, each with
+//! `SourceSpan::Code`) to chunks 1:1. A unit longer than
+//! `AST_CHUNK_MAX_LINES` is split into `<symbol> [part i/N]` sub-chunks
+//! at blank-line paragraph boundaries (design §9.1 oversize fallback).
+//!
+//! tree-sitter is intentionally NOT a dependency here: AST work is
+//! parser-side (`kebab-parse-code`, design §6.3). This chunker only
+//! consumes the `CanonicalDocument`.
+//!
+//! `AST_CHUNK_MAX_LINES` is a constant matching
+//! `IngestCodeCfg::default().ast_chunk_max_lines` (200). Per-medium
+//! config threading needs a chunker registry (P+); same deviation
+//! pattern as `pdf-page-v1`'s pinned `chunker_version`
+//! (`tasks/HOTFIXES.md`).
+
+use kebab_core::{
+    Block, BlockId, CanonicalDocument, Chunk, ChunkPolicy, Chunker, ChunkerVersion, DocumentId,
+    SourceSpan, id_for_chunk,
+};
+
+const VERSION_LABEL: &str = "code-java-ast-v1";
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+const AST_CHUNK_MAX_LINES: u32 = 200;
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeJavaAstV1Chunker;
+
+impl Chunker for CodeJavaAstV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        let bytes = serde_json_canonicalizer::to_vec(policy)
+            .expect("canonical JSON serialization of ChunkPolicy must not fail");
+        let hex = blake3::hash(&bytes).to_hex().to_string();
+        hex[..POLICY_HASH_HEX_LEN].to_string()
+    }
+
+    fn chunk(
+        &self,
+        doc: &CanonicalDocument,
+        policy: &ChunkPolicy,
+    ) -> anyhow::Result<Vec<Chunk>> {
+        for b in &doc.blocks {
+            let c = match b {
+                Block::Code(c) => c,
+                _ => anyhow::bail!(
+                    "CodeJavaAstV1Chunker only handles code docs (got non-Code block)"
+                ),
+            };
+            if !matches!(c.common.source_span, SourceSpan::Code { .. }) {
+                anyhow::bail!(
+                    "CodeJavaAstV1Chunker only handles code docs (got non-Code source_span)"
+                );
+            }
+        }
+
+        let base_policy_hash = self.policy_hash(policy);
+        let chunker_version = self.chunker_version();
+        let mut out: Vec<Chunk> = Vec::new();
+
+        for b in &doc.blocks {
+            let cb = match b {
+                Block::Code(c) => c,
+                _ => unreachable!("validated above"),
+            };
+            let (ls, le, symbol, lang) = match &cb.common.source_span {
+                SourceSpan::Code { line_start, line_end, symbol, lang } => {
+                    (*line_start, *line_end, symbol.clone(), lang.clone())
+                }
+                _ => unreachable!("validated above"),
+            };
+            let block_ids: Vec<BlockId> = vec![cb.common.block_id.clone()];
+            let span_lines = le.saturating_sub(ls) + 1;
+
+            if span_lines <= AST_CHUNK_MAX_LINES {
+                let span = SourceSpan::Code {
+                    line_start: ls,
+                    line_end: le,
+                    symbol: symbol.clone(),
+                    lang: lang.clone(),
+                };
+                out.push(make_chunk(
+                    doc, &chunker_version, &block_ids, &base_policy_hash,
+                    None, span, cb.code.clone(),
+                ));
+            } else {
+                let parts = split_oversize(&cb.code);
+                let n = parts.len();
+                for (i, (off_start, off_end, text)) in parts.into_iter().enumerate() {
+                    let part_ls = ls + off_start;
+                    let part_le = ls + off_end;
+                    let part_sym = symbol
+                        .as_ref()
+                        .map(|s| format!("{s} [part {}/{n}]", i + 1));
+                    let span = SourceSpan::Code {
+                        line_start: part_ls,
+                        line_end: part_le,
+                        symbol: part_sym,
+                        lang: lang.clone(),
+                    };
+                    out.push(make_chunk(
+                        doc, &chunker_version, &block_ids, &base_policy_hash,
+                        Some(part_ls), span, text,
+                    ));
+                }
+            }
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = out.len(),
+            "code-java-ast-v1 chunked",
+        );
+        Ok(out)
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn make_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    block_ids: &[BlockId],
+    base_policy_hash: &str,
+    split_key: Option<u32>,
+    span: SourceSpan,
+    text: String,
+) -> Chunk {
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+    let chunk_id = id_for_chunk(&doc.doc_id, chunker_version, block_ids, &id_hash);
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids: block_ids.to_vec(),
+        text,
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}
+
+/// Split an oversize unit at blank-line paragraph boundaries, greedily
+/// gluing paragraphs until ~`AST_CHUNK_MAX_LINES` lines accumulate.
+/// Returns `(line_offset_start, line_offset_end, text)` where offsets are
+/// 0-based within the unit (caller adds the unit's absolute `line_start`).
+fn split_oversize(code: &str) -> Vec<(u32, u32, String)> {
+    let lines: Vec<&str> = code.split('\n').collect();
+    let total = lines.len() as u32;
+    let mut out: Vec<(u32, u32, String)> = Vec::new();
+    let mut start: u32 = 0;
+    while start < total {
+        let mut end = (start + AST_CHUNK_MAX_LINES).min(total);
+        let floor = start + (AST_CHUNK_MAX_LINES * 4 / 5);
+        if end < total {
+            if let Some(b) = (floor.min(end)..end)
+                .rev()
+                .find(|&i| lines[i as usize].trim().is_empty())
+            {
+                end = b + 1;
+            }
+        }
+        let text = lines[start as usize..end as usize].join("\n");
+        out.push((start, end.saturating_sub(1), text));
+        start = end;
+    }
+    if out.is_empty() {
+        out.push((0, total.saturating_sub(1), code.to_string()));
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{
+        Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+        SourceSpan, id_for_block, id_for_doc, AssetId, Lang, Metadata, ParserVersion, Provenance,
+        SourceType, TrustLevel, WorkspacePath,
+    };
+    use time::OffsetDateTime;
+
+    fn code_doc(units: &[(&str, u32, u32, &str)]) -> CanonicalDocument {
+        let wp = WorkspacePath("crates/x/src/Main.java".into());
+        let aid = AssetId("a".repeat(64));
+        let pv = ParserVersion("code-java-v1".into());
+        let doc_id = id_for_doc(&wp, &aid, &pv);
+        let blocks = units
+            .iter()
+            .enumerate()
+            .map(|(i, (sym, ls, le, code))| {
+                let span = SourceSpan::Code {
+                    line_start: *ls,
+                    line_end: *le,
+                    symbol: Some((*sym).to_string()),
+                    lang: Some("java".into()),
+                };
+                let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+                Block::Code(CodeBlock {
+                    common: CommonBlock { block_id: bid, heading_path: vec![], source_span: span },
+                    lang: Some("java".into()),
+                    code: (*code).to_string(),
+                })
+            })
+            .collect();
+        CanonicalDocument {
+            doc_id, source_asset_id: aid, workspace_path: wp, title: "a".into(),
+            lang: Lang("und".into()), blocks,
+            metadata: Metadata {
+                aliases: vec![], tags: vec![],
+                created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                source_type: SourceType::Note, trust_level: TrustLevel::Primary,
+                user_id_alias: None, user: Default::default(),
+                repo: Some("kebab".into()), git_branch: Some("main".into()),
+                git_commit: Some("0".repeat(40)), code_lang: Some("java".into()),
+            },
+            provenance: Provenance { events: vec![] },
+            parser_version: pv, schema_version: 1, doc_version: 1,
+            last_chunker_version: None, last_embedding_version: None,
+        }
+    }
+    fn policy() -> ChunkPolicy {
+        ChunkPolicy { target_tokens: 500, overlap_tokens: 80,
+            respect_markdown_headings: false,
+            chunker_version: ChunkerVersion(VERSION_LABEL.into()) }
+    }
+
+    #[test]
+    fn chunker_version_is_code_java_ast_v1() {
+        assert_eq!(CodeJavaAstV1Chunker.chunker_version(),
+            ChunkerVersion("code-java-ast-v1".into()));
+    }
+
+    #[test]
+    fn one_chunk_per_unit_preserves_code_span() {
+        let doc = code_doc(&[
+            ("parse", 1, 3, "void parse() {\n\t// x\n}"),
+            ("Foo.double", 5, 7, "int double() {\n\t//\n\treturn 0;\n}"),
+        ]);
+        let chunks = CodeJavaAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert_eq!(chunks.len(), 2);
+        for c in &chunks {
+            assert_eq!(c.source_spans.len(), 1);
+            assert!(matches!(c.source_spans[0], SourceSpan::Code { .. }));
+            assert_eq!(c.heading_path, Vec::<String>::new());
+            assert_eq!(c.chunker_version.0, "code-java-ast-v1");
+        }
+        match &chunks[0].source_spans[0] {
+            SourceSpan::Code { symbol, line_start, line_end, .. } => {
+                assert_eq!(symbol.as_deref(), Some("parse"));
+                assert_eq!((*line_start, *line_end), (1, 3));
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn oversize_unit_splits_into_parts_with_unique_ids() {
+        let body = (0..500).map(|i| format!("\tint x{i} = {i};")).collect::<Vec<_>>().join("\n");
+        let code = format!("void big() {{\n{body}\n}}");
+        let doc = code_doc(&[("big", 1, 502, &code)]);
+        let chunks = CodeJavaAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert!(chunks.len() >= 2, "oversize unit must split, got {}", chunks.len());
+        for c in &chunks {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    assert!(symbol.as_deref().unwrap().starts_with("big [part "),
+                        "part-numbered symbol, got {symbol:?}");
+                }
+                _ => unreachable!(),
+            }
+        }
+        let mut ids: Vec<&str> = chunks.iter().map(|c| c.chunk_id.0.as_str()).collect();
+        let n = ids.len(); ids.sort(); ids.dedup();
+        assert_eq!(ids.len(), n, "chunk_ids unique across split parts");
+    }
+
+    #[test]
+    fn non_code_doc_errors() {
+        use kebab_core::TextBlock;
+        let mut doc = code_doc(&[("parse", 1, 1, "void parse() {}")]);
+        doc.blocks = vec![Block::Paragraph(TextBlock {
+            common: CommonBlock {
+                block_id: kebab_core::BlockId("b".into()),
+                heading_path: vec![],
+                source_span: SourceSpan::Line { start: 1, end: 1 },
+            },
+            text: "x".into(), inlines: vec![],
+        })];
+        let err = CodeJavaAstV1Chunker.chunk(&doc, &policy()).unwrap_err();
+        assert!(err.to_string().contains("CodeJavaAstV1Chunker"));
+    }
+
+    #[test]
+    fn deterministic_chunk_ids_1000() {
+        let doc = code_doc(&[("parse", 1, 2, "void parse() {}\n")]);
+        let base: Vec<String> = CodeJavaAstV1Chunker.chunk(&doc, &policy())
+            .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+        for _ in 0..1000 {
+            let again: Vec<String> = CodeJavaAstV1Chunker.chunk(&doc, &policy())
+                .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+            assert_eq!(again, base);
+        }
+    }
+
+    #[test]
+    fn policy_hash_matches_md_heading_v1() {
+        let p = policy();
+        assert_eq!(CodeJavaAstV1Chunker.policy_hash(&p),
+            crate::MdHeadingV1Chunker.policy_hash(&p));
+    }
+}

crates/kebab-chunk/src/code_kotlin_ast_v1.rs

@@ -0,0 +1,322 @@
+//! `code-kotlin-ast-v1` — maps a tree-sitter-derived Kotlin AST
+//! `CanonicalDocument` (one `Block::Code` per semantic unit, each with
+//! `SourceSpan::Code`) to chunks 1:1. A unit longer than
+//! `AST_CHUNK_MAX_LINES` is split into `<symbol> [part i/N]` sub-chunks
+//! at blank-line paragraph boundaries (design §9.1 oversize fallback).
+//!
+//! tree-sitter is intentionally NOT a dependency here: AST work is
+//! parser-side (`kebab-parse-code`, design §6.3). This chunker only
+//! consumes the `CanonicalDocument`.
+//!
+//! `AST_CHUNK_MAX_LINES` is a constant matching
+//! `IngestCodeCfg::default().ast_chunk_max_lines` (200). Per-medium
+//! config threading needs a chunker registry (P+); same deviation
+//! pattern as `pdf-page-v1`'s pinned `chunker_version`
+//! (`tasks/HOTFIXES.md`).
+
+use kebab_core::{
+    Block, BlockId, CanonicalDocument, Chunk, ChunkPolicy, Chunker, ChunkerVersion, DocumentId,
+    SourceSpan, id_for_chunk,
+};
+
+const VERSION_LABEL: &str = "code-kotlin-ast-v1";
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+const AST_CHUNK_MAX_LINES: u32 = 200;
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeKotlinAstV1Chunker;
+
+impl Chunker for CodeKotlinAstV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        let bytes = serde_json_canonicalizer::to_vec(policy)
+            .expect("canonical JSON serialization of ChunkPolicy must not fail");
+        let hex = blake3::hash(&bytes).to_hex().to_string();
+        hex[..POLICY_HASH_HEX_LEN].to_string()
+    }
+
+    fn chunk(
+        &self,
+        doc: &CanonicalDocument,
+        policy: &ChunkPolicy,
+    ) -> anyhow::Result<Vec<Chunk>> {
+        for b in &doc.blocks {
+            let c = match b {
+                Block::Code(c) => c,
+                _ => anyhow::bail!(
+                    "CodeKotlinAstV1Chunker only handles code docs (got non-Code block)"
+                ),
+            };
+            if !matches!(c.common.source_span, SourceSpan::Code { .. }) {
+                anyhow::bail!(
+                    "CodeKotlinAstV1Chunker only handles code docs (got non-Code source_span)"
+                );
+            }
+        }
+
+        let base_policy_hash = self.policy_hash(policy);
+        let chunker_version = self.chunker_version();
+        let mut out: Vec<Chunk> = Vec::new();
+
+        for b in &doc.blocks {
+            let cb = match b {
+                Block::Code(c) => c,
+                _ => unreachable!("validated above"),
+            };
+            let (ls, le, symbol, lang) = match &cb.common.source_span {
+                SourceSpan::Code { line_start, line_end, symbol, lang } => {
+                    (*line_start, *line_end, symbol.clone(), lang.clone())
+                }
+                _ => unreachable!("validated above"),
+            };
+            let block_ids: Vec<BlockId> = vec![cb.common.block_id.clone()];
+            let span_lines = le.saturating_sub(ls) + 1;
+
+            if span_lines <= AST_CHUNK_MAX_LINES {
+                let span = SourceSpan::Code {
+                    line_start: ls,
+                    line_end: le,
+                    symbol: symbol.clone(),
+                    lang: lang.clone(),
+                };
+                out.push(make_chunk(
+                    doc, &chunker_version, &block_ids, &base_policy_hash,
+                    None, span, cb.code.clone(),
+                ));
+            } else {
+                let parts = split_oversize(&cb.code);
+                let n = parts.len();
+                for (i, (off_start, off_end, text)) in parts.into_iter().enumerate() {
+                    let part_ls = ls + off_start;
+                    let part_le = ls + off_end;
+                    let part_sym = symbol
+                        .as_ref()
+                        .map(|s| format!("{s} [part {}/{n}]", i + 1));
+                    let span = SourceSpan::Code {
+                        line_start: part_ls,
+                        line_end: part_le,
+                        symbol: part_sym,
+                        lang: lang.clone(),
+                    };
+                    out.push(make_chunk(
+                        doc, &chunker_version, &block_ids, &base_policy_hash,
+                        Some(part_ls), span, text,
+                    ));
+                }
+            }
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = out.len(),
+            "code-kotlin-ast-v1 chunked",
+        );
+        Ok(out)
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn make_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    block_ids: &[BlockId],
+    base_policy_hash: &str,
+    split_key: Option<u32>,
+    span: SourceSpan,
+    text: String,
+) -> Chunk {
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+    let chunk_id = id_for_chunk(&doc.doc_id, chunker_version, block_ids, &id_hash);
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids: block_ids.to_vec(),
+        text,
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}
+
+/// Split an oversize unit at blank-line paragraph boundaries, greedily
+/// gluing paragraphs until ~`AST_CHUNK_MAX_LINES` lines accumulate.
+/// Returns `(line_offset_start, line_offset_end, text)` where offsets are
+/// 0-based within the unit (caller adds the unit's absolute `line_start`).
+fn split_oversize(code: &str) -> Vec<(u32, u32, String)> {
+    let lines: Vec<&str> = code.split('\n').collect();
+    let total = lines.len() as u32;
+    let mut out: Vec<(u32, u32, String)> = Vec::new();
+    let mut start: u32 = 0;
+    while start < total {
+        let mut end = (start + AST_CHUNK_MAX_LINES).min(total);
+        let floor = start + (AST_CHUNK_MAX_LINES * 4 / 5);
+        if end < total {
+            if let Some(b) = (floor.min(end)..end)
+                .rev()
+                .find(|&i| lines[i as usize].trim().is_empty())
+            {
+                end = b + 1;
+            }
+        }
+        let text = lines[start as usize..end as usize].join("\n");
+        out.push((start, end.saturating_sub(1), text));
+        start = end;
+    }
+    if out.is_empty() {
+        out.push((0, total.saturating_sub(1), code.to_string()));
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{
+        Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+        SourceSpan, id_for_block, id_for_doc, AssetId, Lang, Metadata, ParserVersion, Provenance,
+        SourceType, TrustLevel, WorkspacePath,
+    };
+    use time::OffsetDateTime;
+
+    fn code_doc(units: &[(&str, u32, u32, &str)]) -> CanonicalDocument {
+        let wp = WorkspacePath("crates/x/src/Main.kt".into());
+        let aid = AssetId("a".repeat(64));
+        let pv = ParserVersion("code-kotlin-v1".into());
+        let doc_id = id_for_doc(&wp, &aid, &pv);
+        let blocks = units
+            .iter()
+            .enumerate()
+            .map(|(i, (sym, ls, le, code))| {
+                let span = SourceSpan::Code {
+                    line_start: *ls,
+                    line_end: *le,
+                    symbol: Some((*sym).to_string()),
+                    lang: Some("kotlin".into()),
+                };
+                let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+                Block::Code(CodeBlock {
+                    common: CommonBlock { block_id: bid, heading_path: vec![], source_span: span },
+                    lang: Some("kotlin".into()),
+                    code: (*code).to_string(),
+                })
+            })
+            .collect();
+        CanonicalDocument {
+            doc_id, source_asset_id: aid, workspace_path: wp, title: "a".into(),
+            lang: Lang("und".into()), blocks,
+            metadata: Metadata {
+                aliases: vec![], tags: vec![],
+                created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+                source_type: SourceType::Note, trust_level: TrustLevel::Primary,
+                user_id_alias: None, user: Default::default(),
+                repo: Some("kebab".into()), git_branch: Some("main".into()),
+                git_commit: Some("0".repeat(40)), code_lang: Some("kotlin".into()),
+            },
+            provenance: Provenance { events: vec![] },
+            parser_version: pv, schema_version: 1, doc_version: 1,
+            last_chunker_version: None, last_embedding_version: None,
+        }
+    }
+    fn policy() -> ChunkPolicy {
+        ChunkPolicy { target_tokens: 500, overlap_tokens: 80,
+            respect_markdown_headings: false,
+            chunker_version: ChunkerVersion(VERSION_LABEL.into()) }
+    }
+
+    #[test]
+    fn chunker_version_is_code_kotlin_ast_v1() {
+        assert_eq!(CodeKotlinAstV1Chunker.chunker_version(),
+            ChunkerVersion("code-kotlin-ast-v1".into()));
+    }
+
+    #[test]
+    fn one_chunk_per_unit_preserves_code_span() {
+        let doc = code_doc(&[
+            ("parse", 1, 3, "fun parse() {\n\t// x\n}"),
+            ("Foo.double", 5, 7, "fun double(): Int {\n\t//\n\treturn 0\n}"),
+        ]);
+        let chunks = CodeKotlinAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert_eq!(chunks.len(), 2);
+        for c in &chunks {
+            assert_eq!(c.source_spans.len(), 1);
+            assert!(matches!(c.source_spans[0], SourceSpan::Code { .. }));
+            assert_eq!(c.heading_path, Vec::<String>::new());
+            assert_eq!(c.chunker_version.0, "code-kotlin-ast-v1");
+        }
+        match &chunks[0].source_spans[0] {
+            SourceSpan::Code { symbol, line_start, line_end, .. } => {
+                assert_eq!(symbol.as_deref(), Some("parse"));
+                assert_eq!((*line_start, *line_end), (1, 3));
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn oversize_unit_splits_into_parts_with_unique_ids() {
+        let body = (0..500).map(|i| format!("\tval x{i} = {i}")).collect::<Vec<_>>().join("\n");
+        let code = format!("fun big() {{\n{body}\n}}");
+        let doc = code_doc(&[("big", 1, 502, &code)]);
+        let chunks = CodeKotlinAstV1Chunker.chunk(&doc, &policy()).unwrap();
+        assert!(chunks.len() >= 2, "oversize unit must split, got {}", chunks.len());
+        for c in &chunks {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    assert!(symbol.as_deref().unwrap().starts_with("big [part "),
+                        "part-numbered symbol, got {symbol:?}");
+                }
+                _ => unreachable!(),
+            }
+        }
+        let mut ids: Vec<&str> = chunks.iter().map(|c| c.chunk_id.0.as_str()).collect();
+        let n = ids.len(); ids.sort(); ids.dedup();
+        assert_eq!(ids.len(), n, "chunk_ids unique across split parts");
+    }
+
+    #[test]
+    fn non_code_doc_errors() {
+        use kebab_core::TextBlock;
+        let mut doc = code_doc(&[("parse", 1, 1, "fun parse() {}")]);
+        doc.blocks = vec![Block::Paragraph(TextBlock {
+            common: CommonBlock {
+                block_id: kebab_core::BlockId("b".into()),
+                heading_path: vec![],
+                source_span: SourceSpan::Line { start: 1, end: 1 },
+            },
+            text: "x".into(), inlines: vec![],
+        })];
+        let err = CodeKotlinAstV1Chunker.chunk(&doc, &policy()).unwrap_err();
+        assert!(err.to_string().contains("CodeKotlinAstV1Chunker"));
+    }
+
+    #[test]
+    fn deterministic_chunk_ids_1000() {
+        let doc = code_doc(&[("parse", 1, 2, "fun parse() {}\n")]);
+        let base: Vec<String> = CodeKotlinAstV1Chunker.chunk(&doc, &policy())
+            .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+        for _ in 0..1000 {
+            let again: Vec<String> = CodeKotlinAstV1Chunker.chunk(&doc, &policy())
+                .unwrap().into_iter().map(|c| c.chunk_id.0).collect();
+            assert_eq!(again, base);
+        }
+    }
+
+    #[test]
+    fn policy_hash_matches_md_heading_v1() {
+        let p = policy();
+        assert_eq!(CodeKotlinAstV1Chunker.policy_hash(&p),
+            crate::MdHeadingV1Chunker.policy_hash(&p));
+    }
+}

crates/kebab-chunk/src/code_text_paragraph_v1.rs

@@ -0,0 +1,170 @@
+//! p10-3: Tier 3 paragraph + line-window fallback chunker.
+//!
+//! Splits code/text files on blank-line paragraph boundaries.  Paragraphs
+//! with more than 80 lines are further split into 80-line windows with a
+//! 20-line overlap (stride 60) — the same oversize pattern used by Tier 1/2
+//! chunkers but without AST structure, hence no symbol.
+//!
+//! Per spec §9.3: all emitted chunks carry `symbol: None`.
+
+use crate::tier2_shared::{build_chunk_no_symbol, policy_hash};
+use anyhow::Result;
+use kebab_core::{Block, CanonicalDocument, Chunk, ChunkPolicy, ChunkerVersion, Chunker};
+
+pub const VERSION_LABEL: &str = "code-text-paragraph-v1";
+
+/// Lines-per-window for the oversize fallback (Tier 3).
+const FALLBACK_LINES_PER_CHUNK: usize = 80;
+/// Overlap between consecutive windows.
+const FALLBACK_LINES_OVERLAP: usize = 20;
+// stride = FALLBACK_LINES_PER_CHUNK - FALLBACK_LINES_OVERLAP = 60.
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct CodeTextParagraphV1Chunker;
+
+impl Chunker for CodeTextParagraphV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        policy_hash(policy)
+    }
+
+    fn chunk(&self, doc: &CanonicalDocument, policy: &ChunkPolicy) -> Result<Vec<Chunk>> {
+        // Expect a single Block::Code carrying the full source text.
+        let (text, lang_str) = match doc.blocks.first() {
+            Some(Block::Code(cb)) => (cb.code.as_str(), cb.lang.as_deref().unwrap_or("")),
+            _ => return Ok(vec![]),
+        };
+
+        let mut chunks = Vec::new();
+        for para in split_paragraphs(text) {
+            push_paragraph(&mut chunks, doc, policy, &para, lang_str)?;
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = chunks.len(),
+            "code-text-paragraph-v1 chunked",
+        );
+
+        Ok(chunks)
+    }
+}
+
+/// A contiguous run of non-blank lines from the source text.
+struct Paragraph {
+    /// Lines joined with `\n` (no trailing newline).
+    text: String,
+    /// 1-indexed line number of the first line in the source file.
+    line_start: u32,
+    /// 1-indexed line number of the last line in the source file.
+    line_end: u32,
+}
+
+/// Split `text` into `Paragraph`s separated by blank (all-whitespace) lines.
+///
+/// Blank lines are treated as boundaries and are NOT included in any
+/// paragraph's line range.  Paragraphs that would consist entirely of blank
+/// lines are skipped.
+fn split_paragraphs(text: &str) -> Vec<Paragraph> {
+    let mut paragraphs = Vec::new();
+    let mut current: Vec<&str> = Vec::new();
+    let mut current_start: Option<u32> = None;
+
+    for (idx, line) in text.lines().enumerate() {
+        let line_no = (idx + 1) as u32;
+        let is_blank = line.trim().is_empty();
+        if is_blank {
+            if let Some(start) = current_start.take() {
+                let end = start + current.len() as u32 - 1;
+                paragraphs.push(Paragraph {
+                    text: current.join("\n"),
+                    line_start: start,
+                    line_end: end,
+                });
+                current.clear();
+            }
+        } else {
+            if current_start.is_none() {
+                current_start = Some(line_no);
+            }
+            current.push(line);
+        }
+    }
+    // Flush any trailing paragraph not terminated by a blank line.
+    if let Some(start) = current_start {
+        let end = start + current.len() as u32 - 1;
+        paragraphs.push(Paragraph {
+            text: current.join("\n"),
+            line_start: start,
+            line_end: end,
+        });
+    }
+    paragraphs
+}
+
+/// Emit one or more chunks for a single paragraph.
+///
+/// Paragraphs with ≤ `FALLBACK_LINES_PER_CHUNK` lines become a single chunk.
+/// Larger paragraphs are split into overlapping windows of
+/// `FALLBACK_LINES_PER_CHUNK` lines with stride `FALLBACK_LINES_PER_CHUNK -
+/// FALLBACK_LINES_OVERLAP`.  The last window may be shorter.  Window starts
+/// are passed as `split_key` so `id_for_chunk` can produce distinct ids
+/// across windows.
+fn push_paragraph(
+    out: &mut Vec<Chunk>,
+    doc: &CanonicalDocument,
+    policy: &ChunkPolicy,
+    para: &Paragraph,
+    lang: &str,
+) -> Result<()> {
+    let n_lines = (para.line_end - para.line_start + 1) as usize;
+
+    if n_lines <= FALLBACK_LINES_PER_CHUNK {
+        // Use line_start as split_key so each paragraph gets a distinct
+        // chunk_id even when block_ids is empty (no symbol, no AST structure).
+        // Without this, all short paragraphs from the same doc share the same
+        // base_policy_hash and therefore the same id_for_chunk result.
+        out.push(build_chunk_no_symbol(
+            doc,
+            policy,
+            &para.text,
+            para.line_start,
+            para.line_end,
+            lang,
+            VERSION_LABEL,
+            Some(para.line_start),
+        ));
+        return Ok(());
+    }
+
+    // Oversize: line-window split with overlap.
+    let stride = FALLBACK_LINES_PER_CHUNK - FALLBACK_LINES_OVERLAP;
+    let lines: Vec<&str> = para.text.lines().collect();
+    let mut i = 0usize;
+    loop {
+        let end = (i + FALLBACK_LINES_PER_CHUNK).min(lines.len());
+        let window_text = lines[i..end].join("\n");
+        let window_start = para.line_start + i as u32;
+        let window_end = para.line_start + (end as u32) - 1;
+        // Use window_start as split_key so chunk_ids are unique across windows.
+        out.push(build_chunk_no_symbol(
+            doc,
+            policy,
+            &window_text,
+            window_start,
+            window_end,
+            lang,
+            VERSION_LABEL,
+            Some(window_start),
+        ));
+        if end == lines.len() {
+            break;
+        }
+        i += stride;
+    }
+    Ok(())
+}

crates/kebab-chunk/src/dockerfile_file_v1.rs

@@ -0,0 +1,58 @@
+//! p10-2: dockerfile whole-file chunker (Tier 2).
+//!
+//! Reads entire Dockerfile content and emits a single Chunk with symbol
+//! "<dockerfile>", code_lang "dockerfile", line range 1..EOF.
+//! Oversize >200 lines splits into line-windows sharing the symbol via
+//! tier2_shared::push_chunks_with_oversize.
+
+use crate::tier2_shared::{policy_hash, push_chunks_with_oversize};
+use anyhow::Result;
+use kebab_core::{Block, CanonicalDocument, Chunk, ChunkPolicy, ChunkerVersion, Chunker};
+
+pub const VERSION_LABEL: &str = "dockerfile-file-v1";
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct DockerfileFileV1Chunker;
+
+impl Chunker for DockerfileFileV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        policy_hash(policy)
+    }
+
+    fn chunk(&self, doc: &CanonicalDocument, policy: &ChunkPolicy) -> Result<Vec<Chunk>> {
+        // Expect a single Block::Code carrying the full Dockerfile text.
+        let text = match doc.blocks.first() {
+            Some(Block::Code(cb)) => cb.code.as_str(),
+            _ => return Ok(vec![]),
+        };
+
+        let total_lines = text.lines().count().max(1) as u32;
+        let mut chunks = Vec::new();
+
+        push_chunks_with_oversize(
+            &mut chunks,
+            doc,
+            policy,
+            text,
+            1,
+            total_lines,
+            "<dockerfile>",
+            "dockerfile",
+            VERSION_LABEL,
+            None,
+        )?;
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = chunks.len(),
+            "dockerfile-file-v1 chunked",
+        );
+
+        Ok(chunks)
+    }
+}

crates/kebab-chunk/src/k8s_manifest_resource_v1.rs

@@ -0,0 +1,170 @@
+//! p10-2: k8s manifest resource-aware chunker.
+//!
+//! Splits a multi-document YAML file on `^---\s*$` boundaries, recognises
+//! documents that have both `apiVersion` and `kind` string fields as k8s
+//! resources, and emits one `Chunk` per resource (with oversize >200-line
+//! fallback).  Non-k8s documents are skipped; invalid YAML yields 0 chunks
+//! for the entire file.
+
+use crate::tier2_shared::{policy_hash, push_chunks_with_oversize};
+use anyhow::Result;
+use kebab_core::{Block, CanonicalDocument, Chunk, ChunkPolicy, ChunkerVersion, Chunker};
+
+pub const VERSION_LABEL: &str = "k8s-manifest-resource-v1";
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct K8sManifestResourceV1Chunker;
+
+impl Chunker for K8sManifestResourceV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        policy_hash(policy)
+    }
+
+    fn chunk(&self, doc: &CanonicalDocument, policy: &ChunkPolicy) -> Result<Vec<Chunk>> {
+        // Expect a single Block::Code carrying the full YAML text.
+        let text = match doc.blocks.first() {
+            Some(Block::Code(cb)) => cb.code.as_str(),
+            _ => return Ok(vec![]),
+        };
+
+        let slices = split_yaml_documents(text);
+        let mut chunks: Vec<Chunk> = Vec::new();
+
+        for slice in slices {
+            // Invalid YAML in any document → return 0 chunks for the file.
+            let value: serde_yaml::Value = match serde_yaml::from_str(slice.text) {
+                Ok(v) => v,
+                Err(_) => return Ok(vec![]),
+            };
+
+            let Some(mapping) = value.as_mapping() else {
+                continue;
+            };
+
+            let api = mapping
+                .get("apiVersion")
+                .and_then(|v| v.as_str())
+                .unwrap_or("");
+            let kind = mapping
+                .get("kind")
+                .and_then(|v| v.as_str())
+                .unwrap_or("");
+
+            // Skip non-k8s documents.
+            if api.is_empty() || kind.is_empty() {
+                continue;
+            }
+
+            let metadata = mapping
+                .get("metadata")
+                .and_then(|v| v.as_mapping());
+            let name = metadata
+                .and_then(|m| m.get("name"))
+                .and_then(|v| v.as_str())
+                .unwrap_or("<unnamed>");
+            let namespace = metadata
+                .and_then(|m| m.get("namespace"))
+                .and_then(|v| v.as_str());
+
+            let symbol = match namespace {
+                Some(ns) if !ns.is_empty() => format!("{kind}/{ns}/{name}"),
+                _ => format!("{kind}/{name}"),
+            };
+
+            push_chunks_with_oversize(
+                &mut chunks,
+                doc,
+                policy,
+                slice.text,
+                slice.line_start,
+                slice.line_end,
+                &symbol,
+                "yaml",
+                VERSION_LABEL,
+                Some(slice.line_start),
+            )?;
+        }
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = chunks.len(),
+            "k8s-manifest-resource-v1 chunked",
+        );
+
+        Ok(chunks)
+    }
+}
+
+struct YamlSlice<'a> {
+    text: &'a str,
+    line_start: u32,
+    line_end: u32,
+}
+
+/// Split raw YAML text into per-document slices on `---` separator lines.
+/// Line numbers are 1-indexed.
+fn split_yaml_documents(text: &str) -> Vec<YamlSlice<'_>> {
+    let lines: Vec<&str> = text.lines().collect();
+
+    // Collect indices of separator lines (0-based), then append a sentinel at
+    // the end so the last slice is always terminated.
+    let mut separators: Vec<usize> = lines
+        .iter()
+        .enumerate()
+        .filter_map(|(i, l)| {
+            let trimmed = l.trim_end();
+            if trimmed == "---"
+                || trimmed.starts_with("--- ")
+                || trimmed.starts_with("---\t")
+            {
+                Some(i)
+            } else {
+                None
+            }
+        })
+        .collect();
+    separators.push(lines.len());
+
+    let mut slices: Vec<YamlSlice<'_>> = Vec::new();
+    let mut doc_start_line: usize = 0; // 0-based index of current doc start
+
+    for sep_line in separators {
+        if sep_line > doc_start_line {
+            let start_byte = byte_offset_of_line(text, doc_start_line);
+            let end_byte = byte_offset_of_line(text, sep_line);
+            let slice_text = &text[start_byte..end_byte];
+            if !slice_text.trim().is_empty() {
+                slices.push(YamlSlice {
+                    text: slice_text,
+                    line_start: (doc_start_line + 1) as u32,
+                    line_end: sep_line as u32,
+                });
+            }
+        }
+        doc_start_line = sep_line + 1;
+    }
+
+    slices
+}
+
+/// Return the byte offset of the start of `line_idx` (0-based line index).
+fn byte_offset_of_line(text: &str, line_idx: usize) -> usize {
+    if line_idx == 0 {
+        return 0;
+    }
+    let mut count = 0usize;
+    for (i, c) in text.char_indices() {
+        if c == '\n' {
+            count += 1;
+            if count == line_idx {
+                return i + 1;
+            }
+        }
+    }
+    text.len()
+}

crates/kebab-chunk/src/lib.rs

@@ -15,16 +15,35 @@
 //! embedder, the retriever, the LLM, the RAG layer, or the UI layers.
 //! It consumes `CanonicalDocument` purely through `kb-core` types.
 
+mod code_c_ast_v1;
+mod code_cpp_ast_v1;
+mod code_go_ast_v1;
+mod code_java_ast_v1;
 mod code_js_ast_v1;
+mod code_kotlin_ast_v1;
 mod code_python_ast_v1;
 mod code_rust_ast_v1;
 mod code_ts_ast_v1;
 mod md_heading_v1;
 mod pdf_page_v1;
+mod tier2_shared;
+pub mod k8s_manifest_resource_v1;
+pub mod dockerfile_file_v1;
+pub mod manifest_file_v1;
+pub mod code_text_paragraph_v1;
 
+pub use code_c_ast_v1::CodeCAstV1Chunker;
+pub use code_cpp_ast_v1::CodeCppAstV1Chunker;
+pub use code_go_ast_v1::CodeGoAstV1Chunker;
+pub use code_java_ast_v1::CodeJavaAstV1Chunker;
 pub use code_js_ast_v1::CodeJsAstV1Chunker;
+pub use code_kotlin_ast_v1::CodeKotlinAstV1Chunker;
 pub use code_python_ast_v1::CodePythonAstV1Chunker;
 pub use code_rust_ast_v1::CodeRustAstV1Chunker;
 pub use code_ts_ast_v1::CodeTsAstV1Chunker;
 pub use md_heading_v1::MdHeadingV1Chunker;
 pub use pdf_page_v1::PdfPageV1Chunker;
+pub use k8s_manifest_resource_v1::K8sManifestResourceV1Chunker;
+pub use dockerfile_file_v1::DockerfileFileV1Chunker;
+pub use manifest_file_v1::ManifestFileV1Chunker;
+pub use code_text_paragraph_v1::CodeTextParagraphV1Chunker;

crates/kebab-chunk/src/manifest_file_v1.rs

@@ -0,0 +1,59 @@
+//! p10-2: manifest whole-file chunker (Tier 2).
+//!
+//! Reads entire manifest file (Cargo.toml / package.json / pom.xml / go.mod /
+//! build.gradle / pyproject.toml / tsconfig.json) and emits a single Chunk
+//! with symbol "<manifest>", code_lang read from Block::Code.lang, line range
+//! 1..EOF. Oversize >200 lines splits into line-windows sharing the symbol via
+//! tier2_shared::push_chunks_with_oversize.
+
+use crate::tier2_shared::{policy_hash, push_chunks_with_oversize};
+use anyhow::Result;
+use kebab_core::{Block, CanonicalDocument, Chunk, ChunkPolicy, ChunkerVersion, Chunker};
+
+pub const VERSION_LABEL: &str = "manifest-file-v1";
+
+#[derive(Clone, Copy, Debug, Default)]
+pub struct ManifestFileV1Chunker;
+
+impl Chunker for ManifestFileV1Chunker {
+    fn chunker_version(&self) -> ChunkerVersion {
+        ChunkerVersion(VERSION_LABEL.to_string())
+    }
+
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        policy_hash(policy)
+    }
+
+    fn chunk(&self, doc: &CanonicalDocument, policy: &ChunkPolicy) -> Result<Vec<Chunk>> {
+        // Expect a single Block::Code carrying the full manifest text.
+        let (text, lang) = match doc.blocks.first() {
+            Some(Block::Code(cb)) => (cb.code.as_str(), cb.lang.as_deref().unwrap_or("")),
+            _ => return Ok(vec![]),
+        };
+
+        let total_lines = text.lines().count().max(1) as u32;
+        let mut chunks = Vec::new();
+
+        push_chunks_with_oversize(
+            &mut chunks,
+            doc,
+            policy,
+            text,
+            1,
+            total_lines,
+            "<manifest>",
+            lang,
+            VERSION_LABEL,
+            None,
+        )?;
+
+        tracing::debug!(
+            target: "kebab-chunk",
+            doc_id = %doc.doc_id,
+            chunks = chunks.len(),
+            "manifest-file-v1 chunked",
+        );
+
+        Ok(chunks)
+    }
+}

crates/kebab-chunk/src/tier2_shared.rs

@@ -0,0 +1,192 @@
+//! p10-2: Tier 2 chunker shared helpers (oversize fallback + Chunk build).
+//!
+//! Mirrors `code_rust_ast_v1`'s Chunk-construction pattern exactly so that
+//! id / hashes / token-count / ChunkPolicy semantics stay identical across
+//! Tier 1 (AST) and Tier 2 (resource-aware) chunkers.
+
+use anyhow::Result;
+use kebab_core::{
+    BlockId, CanonicalDocument, Chunk, ChunkPolicy, ChunkerVersion, DocumentId, SourceSpan,
+    id_for_chunk,
+};
+
+pub(crate) const AST_CHUNK_MAX_LINES: u32 = 200;
+const BYTES_PER_TOKEN: usize = 3;
+const POLICY_HASH_HEX_LEN: usize = 16;
+
+/// Compute the policy hash the same way `code_rust_ast_v1` does.
+pub(crate) fn policy_hash(policy: &ChunkPolicy) -> String {
+    let bytes = serde_json_canonicalizer::to_vec(policy)
+        .expect("canonical JSON serialization of ChunkPolicy must not fail");
+    let hex = blake3::hash(&bytes).to_hex().to_string();
+    hex[..POLICY_HASH_HEX_LEN].to_string()
+}
+
+/// Emit one chunk for `(text, line_start..=line_end, symbol, lang)`, splitting
+/// into line-windows of at most `AST_CHUNK_MAX_LINES` if the slice is oversize.
+/// Mirrors the oversize path in `code_rust_ast_v1`'s `chunk` impl.
+///
+/// `base_split_key` is used as the `split_key` for the non-oversize single-chunk
+/// case. Callers that emit multiple chunks from the same document (e.g.
+/// `K8sManifestResourceV1Chunker` — one call per k8s resource) MUST pass
+/// `Some(line_start)` so that each call produces a distinct `chunk_id`.
+/// Single-chunk callers (dockerfile-file-v1, manifest-file-v1) pass `None` to
+/// keep chunk_ids stable (no sibling can collide when there's only one chunk).
+#[allow(clippy::too_many_arguments)]
+pub(crate) fn push_chunks_with_oversize(
+    out: &mut Vec<Chunk>,
+    doc: &CanonicalDocument,
+    policy: &ChunkPolicy,
+    text: &str,
+    line_start: u32,
+    line_end: u32,
+    symbol: &str,
+    lang: &str,
+    chunker_version: &str,
+    base_split_key: Option<u32>,
+) -> Result<()> {
+    let n_lines = (line_end - line_start + 1).max(1);
+    let cv = ChunkerVersion(chunker_version.to_string());
+    let base_policy_hash = policy_hash(policy);
+
+    if n_lines <= AST_CHUNK_MAX_LINES {
+        out.push(build_chunk(
+            doc,
+            &cv,
+            &base_policy_hash,
+            text,
+            line_start,
+            line_end,
+            symbol,
+            lang,
+            base_split_key,
+        ));
+        return Ok(());
+    }
+
+    let lines: Vec<&str> = text.lines().collect();
+    let total = lines.len();
+    let mut window_start = line_start;
+    let mut i = 0usize;
+    while i < total {
+        let take = (AST_CHUNK_MAX_LINES as usize).min(total - i);
+        let window_text = lines[i..i + take].join("\n");
+        let window_end = window_start + take as u32 - 1;
+        out.push(build_chunk(
+            doc,
+            &cv,
+            &base_policy_hash,
+            &window_text,
+            window_start,
+            window_end,
+            symbol,
+            lang,
+            Some(window_start),
+        ));
+        i += take;
+        window_start = window_end + 1;
+    }
+    Ok(())
+}
+
+/// Build a single `Chunk`, mirroring `make_chunk` in `code_rust_ast_v1.rs`
+/// exactly (same id recipe, same token estimate, same field set).
+///
+/// `split_key` is `Some(line_start_of_window)` for oversize splits, `None`
+/// for normal single-chunk emission.  Mirrors the `Some(part_ls)` / `None`
+/// split_key pattern in 1A-2.
+#[allow(clippy::too_many_arguments)]
+pub(crate) fn build_chunk(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    base_policy_hash: &str,
+    text: &str,
+    line_start: u32,
+    line_end: u32,
+    symbol: &str,
+    lang: &str,
+    split_key: Option<u32>,
+) -> Chunk {
+    let span = SourceSpan::Code {
+        line_start,
+        line_end,
+        symbol: Some(symbol.to_string()),
+        lang: Some(lang.to_string()),
+    };
+    build_chunk_from_span(doc, chunker_version, base_policy_hash, text, span, split_key)
+}
+
+/// Like `build_chunk` but emits `symbol: None`. Used by Tier 3 (per spec §9.3).
+///
+/// Accepts `policy: &ChunkPolicy` and `chunker_version: &str` (string slice)
+/// so callers don't need to pre-compute the hash and version wrapper.
+/// `split_key` is `Some(window_start)` for oversize line-window splits.
+#[allow(clippy::too_many_arguments)]
+pub(crate) fn build_chunk_no_symbol(
+    doc: &CanonicalDocument,
+    policy: &ChunkPolicy,
+    text: &str,
+    line_start: u32,
+    line_end: u32,
+    lang: &str,
+    chunker_version: &str,
+    split_key: Option<u32>,
+) -> Chunk {
+    let cv = ChunkerVersion(chunker_version.to_string());
+    let base_policy_hash = policy_hash(policy);
+    let span = SourceSpan::Code {
+        line_start,
+        line_end,
+        symbol: None,
+        lang: Some(lang.to_string()),
+    };
+    build_chunk_from_span(doc, &cv, &base_policy_hash, text, span, split_key)
+}
+
+/// Core chunk-building logic shared by `build_chunk` and `build_chunk_no_symbol`.
+///
+/// Takes a pre-built `SourceSpan` so the only difference between the two
+/// public helpers is whether `symbol` is `Some` or `None`.  All id/hash/
+/// token mechanics are identical.
+fn build_chunk_from_span(
+    doc: &CanonicalDocument,
+    chunker_version: &ChunkerVersion,
+    base_policy_hash: &str,
+    text: &str,
+    span: SourceSpan,
+    split_key: Option<u32>,
+) -> Chunk {
+    // id_hash mirrors code_rust_ast_v1's make_chunk logic:
+    //   split_key Some(k) => "{base_policy_hash}#L{k}"
+    //   split_key None    => base_policy_hash
+    let id_hash = match split_key {
+        Some(k) => format!("{base_policy_hash}#L{k}"),
+        None => base_policy_hash.to_string(),
+    };
+
+    // block_ids: Tier 2/3 chunkers have no per-block structure (the whole file
+    // is one Block::Code), so we pass an empty slice — same as using the doc-
+    // level slice without explicit block granularity.
+    let block_ids: Vec<BlockId> = vec![];
+
+    let chunk_id = id_for_chunk(
+        &DocumentId(doc.doc_id.0.clone()),
+        chunker_version,
+        &block_ids,
+        &id_hash,
+    );
+
+    let token_estimate = text.len().div_ceil(BYTES_PER_TOKEN);
+
+    Chunk {
+        chunk_id,
+        doc_id: DocumentId(doc.doc_id.0.clone()),
+        block_ids,
+        text: text.to_string(),
+        heading_path: Vec::new(),
+        source_spans: vec![span],
+        token_estimate,
+        chunker_version: chunker_version.clone(),
+        policy_hash: base_policy_hash.to_string(),
+    }
+}

crates/kebab-chunk/tests/code_c_ast_snapshot.rs

@@ -0,0 +1,196 @@
+//! Snapshot test pinning the `Vec<Chunk>` JSON for a
+//! representative C code `CanonicalDocument`.
+//!
+//! This is an integration test. `kebab-parse-code` is intentionally NOT
+//! a dev-dep (design §6.3 / §8 boundary: AST extraction is parser-side).
+//! The `CanonicalDocument` is built inline from hand-crafted `Block::Code`
+//! units, which is the same pattern used in `code_go_ast_v1.rs`'s
+//! internal `code_doc` test helper.
+//!
+//! Set `UPDATE_SNAPSHOTS=1` to re-bake the baseline.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeCAstV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+    Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel, WorkspacePath,
+    id_for_block, id_for_doc,
+};
+use serde_json::Value;
+use time::OffsetDateTime;
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+fn fixed_doc() -> CanonicalDocument {
+    let wp = WorkspacePath("projects/record.c".into());
+    let aid = AssetId("c".repeat(64));
+    // Pin parser_version so doc_id / block_ids are reproducible.
+    let pv = ParserVersion("code-c-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    // Representative units:
+    //  0. imports + defines              (lines 1–4,   ≤200)
+    //  1. status_t enum typedef          (lines 6–9,   ≤200)
+    //  2. record_t struct typedef        (lines 11–16, ≤200)
+    //  3. static counter decl glue       (line 18,     ≤200)
+    //  4. parse_record fn                (lines 20–23, ≤200)
+    //  5. print_record fn                (lines 25–27, ≤200)
+    //  6. main fn                        (lines 29–33, ≤200)
+    let raw_units: Vec<(&str, u32, u32, String)> = vec![
+        (
+            "<top-level>",
+            1,
+            18,
+            "#include <stdio.h>\n#include <stdlib.h>\n\n#define MAX_BUF 4096\n\ntypedef enum {\n    OK = 0,\n    ERR_PARSE,\n    ERR_IO,\n} status_t;\n\ntypedef struct {\n    int id;\n    char name[64];\n    status_t status;\n} record_t;\n\nstatic int counter = 0;".to_string(),
+        ),
+        (
+            "parse_record",
+            20,
+            23,
+            "int parse_record(const char *line, record_t *out) {\n    if (line == NULL || out == NULL) return ERR_PARSE;\n    return OK;\n}".to_string(),
+        ),
+        (
+            "print_record",
+            25,
+            27,
+            "void print_record(const record_t *r) {\n    printf(\"[%d] %s (status=%d)\\n\", r->id, r->name, r->status);\n}".to_string(),
+        ),
+        (
+            "main",
+            29,
+            33,
+            "int main(void) {\n    record_t r = { .id = 1, .name = \"foo\", .status = OK };\n    print_record(&r);\n    return 0;\n}".to_string(),
+        ),
+    ];
+
+    let blocks: Vec<Block> = raw_units
+        .iter()
+        .enumerate()
+        .map(|(i, (sym, ls, le, code))| {
+            let span = SourceSpan::Code {
+                line_start: *ls,
+                line_end: *le,
+                symbol: Some((*sym).to_string()),
+                lang: Some("c".into()),
+            };
+            let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+            Block::Code(CodeBlock {
+                common: CommonBlock {
+                    block_id: bid,
+                    heading_path: vec![],
+                    source_span: span,
+                },
+                lang: Some("c".into()),
+                code: code.clone(),
+            })
+        })
+        .collect();
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "record.c".into(),
+        lang: Lang("und".into()),
+        blocks,
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("c".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn fixed_policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-c-ast-v1".into()),
+    }
+}
+
+#[test]
+fn code_c_ast_chunks_snapshot() {
+    let doc = fixed_doc();
+    let policy = fixed_policy();
+
+    let chunks = CodeCAstV1Chunker.chunk(&doc, &policy).expect("chunk");
+    let actual = serde_json::to_value(&chunks).unwrap();
+
+    let dir = fixtures_dir();
+    let baseline_path = dir.join("code-sample.c.chunks.snapshot.json");
+    let baseline_text = match std::fs::read_to_string(&baseline_path) {
+        Ok(s) => s,
+        Err(_) if std::env::var("UPDATE_SNAPSHOTS").is_ok() => {
+            std::fs::create_dir_all(&dir).unwrap();
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            return;
+        }
+        Err(e) => panic!(
+            "missing baseline {}; run with UPDATE_SNAPSHOTS=1 to create: {e}",
+            baseline_path.display()
+        ),
+    };
+    let expected: Value = serde_json::from_str(&baseline_text).expect("baseline parses as json");
+
+    if actual != expected {
+        if std::env::var("UPDATE_SNAPSHOTS").is_ok() {
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            eprintln!("updated baseline {}", baseline_path.display());
+            return;
+        }
+        let pretty = serde_json::to_string_pretty(&actual).unwrap();
+        panic!(
+            "code-c-ast-v1 chunks snapshot drift\n\
+             --- expected ({}) ---\n{baseline_text}\n\
+             --- actual ---\n{pretty}\n\
+             If intentional, re-run with UPDATE_SNAPSHOTS=1.",
+            baseline_path.display()
+        );
+    }
+}
+
+/// Determinism cross-check: re-running the same pipeline yields the same
+/// chunk_ids byte-for-byte.
+#[test]
+fn code_c_ast_chunks_are_deterministic() {
+    let policy = fixed_policy();
+    let baseline: Vec<String> = CodeCAstV1Chunker
+        .chunk(&fixed_doc(), &policy)
+        .unwrap()
+        .into_iter()
+        .map(|c| c.chunk_id.0)
+        .collect();
+    for _ in 0..5 {
+        let again: Vec<String> = CodeCAstV1Chunker
+            .chunk(&fixed_doc(), &policy)
+            .unwrap()
+            .into_iter()
+            .map(|c| c.chunk_id.0)
+            .collect();
+        assert_eq!(again, baseline);
+    }
+}

crates/kebab-chunk/tests/code_cpp_ast_snapshot.rs

@@ -0,0 +1,325 @@
+//! Snapshot test pinning the `Vec<Chunk>` JSON for a
+//! representative C++ code `CanonicalDocument`.
+//!
+//! Two complementary tests:
+//! 1. `code_cpp_ast_chunks_snapshot` — hand-built `fixed_doc()` validates the
+//!    chunker's 1:1 mapping (design §6.3 / §8 boundary: no parse-code dep needed).
+//! 2. `code_cpp_ast_extractor_snapshot` — invokes `CppAstExtractor` against the
+//!    real `tests/fixtures/sample.cpp` fixture, validating the extractor → chunker
+//!    end-to-end pipeline. `kebab-parse-code` is a dev-dep (same pattern as
+//!    `kebab-parse-md` in Markdown snapshot tests).
+//!
+//! Set `UPDATE_SNAPSHOTS=1` to re-bake the baseline.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeCppAstV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+    Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel, WorkspacePath,
+    id_for_block, id_for_doc,
+};
+use kebab_parse_code::CppAstExtractor;
+use serde_json::Value;
+use time::OffsetDateTime;
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+fn fixed_doc() -> CanonicalDocument {
+    let wp = WorkspacePath("projects/record.cpp".into());
+    let aid = AssetId("c".repeat(64));
+    // Pin parser_version so doc_id / block_ids are reproducible.
+    let pv = ParserVersion("code-cpp-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    // Representative units (C++ specific):
+    //  0. includes + namespace opening  (lines 1–4,   ≤200)
+    //  1. class definition              (lines 6–20,  ≤200)
+    //  2. template function             (lines 22–25, ≤200)
+    //  3. namespace closing + free fn   (lines 27–29, ≤200)
+    //  4. main fn                       (lines 31–34, ≤200)
+    let raw_units: Vec<(&str, u32, u32, String)> = vec![
+        (
+            "<top-level>",
+            1,
+            4,
+            "#include <string>\n#include <vector>\n\nnamespace kebab {".to_string(),
+        ),
+        (
+            "kebab::chunk::MdHeadingV1Chunker",
+            6,
+            20,
+            "class MdHeadingV1Chunker {\npublic:\n    MdHeadingV1Chunker() = default;\n    ~MdHeadingV1Chunker() = default;\n\n    std::string chunk_doc(const std::string& doc) {\n        return doc;\n    }\n\n    int operator()(int x) const {\n        return x * 2;\n    }\n\nprivate:\n    int counter_ = 0;\n};".to_string(),
+        ),
+        (
+            "kebab::identity",
+            22,
+            25,
+            "template <typename T>\nT identity(T value) {\n    return value;\n}".to_string(),
+        ),
+        (
+            "kebab::global_helper",
+            27,
+            29,
+            "void global_helper() {\n    // free function in kebab namespace\n}".to_string(),
+        ),
+        (
+            "main",
+            31,
+            34,
+            "int main() {\n    kebab::chunk::MdHeadingV1Chunker c;\n    return 0;\n}".to_string(),
+        ),
+    ];
+
+    let blocks: Vec<Block> = raw_units
+        .iter()
+        .enumerate()
+        .map(|(i, (sym, ls, le, code))| {
+            let span = SourceSpan::Code {
+                line_start: *ls,
+                line_end: *le,
+                symbol: Some((*sym).to_string()),
+                lang: Some("cpp".into()),
+            };
+            let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+            Block::Code(CodeBlock {
+                common: CommonBlock {
+                    block_id: bid,
+                    heading_path: vec![],
+                    source_span: span,
+                },
+                lang: Some("cpp".into()),
+                code: code.clone(),
+            })
+        })
+        .collect();
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "record.cpp".into(),
+        lang: Lang("und".into()),
+        blocks,
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("cpp".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn fixed_policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-cpp-ast-v1".into()),
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Helper: run the real CppAstExtractor against tests/fixtures/sample.cpp
+// ---------------------------------------------------------------------------
+
+fn extract_cpp_fixture() -> CanonicalDocument {
+    use kebab_core::{
+        AssetId, AssetStorage, Checksum, ExtractConfig, ExtractContext, Extractor, RawAsset,
+        SourceUri, WorkspacePath,
+    };
+    use std::path::PathBuf;
+
+    let bytes = std::fs::read(fixtures_dir().join("sample.cpp")).expect("read sample.cpp fixture");
+    let src = String::from_utf8(bytes).expect("fixture is valid UTF-8");
+    let wp = WorkspacePath("tests/fixtures/sample.cpp".to_string());
+    let asset = RawAsset {
+        asset_id: AssetId("e".repeat(64)),
+        source_uri: SourceUri::File(PathBuf::from("tests/fixtures/sample.cpp")),
+        workspace_path: wp,
+        media_type: kebab_core::MediaType::Code("cpp".to_string()),
+        byte_len: src.len() as u64,
+        checksum: Checksum("f".repeat(64)),
+        discovered_at: time::OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+        stored: AssetStorage::Reference {
+            path: PathBuf::from("tests/fixtures/sample.cpp"),
+            sha: Checksum("f".repeat(64)),
+        },
+    };
+    let cfg = ExtractConfig::default();
+    let root = PathBuf::from("/tmp");
+    let ctx = ExtractContext {
+        asset: &asset,
+        workspace_root: &root,
+        config: &cfg,
+    };
+    CppAstExtractor::new().extract(&ctx, src.as_bytes()).unwrap()
+}
+
+// ---------------------------------------------------------------------------
+// Test 1 (hand-built): chunker-only 1:1 mapping validation
+// ---------------------------------------------------------------------------
+
+#[test]
+fn code_cpp_ast_chunks_snapshot() {
+    let doc = fixed_doc();
+    let policy = fixed_policy();
+
+    let chunks = CodeCppAstV1Chunker.chunk(&doc, &policy).expect("chunk");
+    let actual = serde_json::to_value(&chunks).unwrap();
+
+    let dir = fixtures_dir();
+    let baseline_path = dir.join("code-sample.cpp.chunks.snapshot.json");
+    let baseline_text = match std::fs::read_to_string(&baseline_path) {
+        Ok(s) => s,
+        Err(_) if std::env::var("UPDATE_SNAPSHOTS").is_ok() => {
+            std::fs::create_dir_all(&dir).unwrap();
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            return;
+        }
+        Err(e) => panic!(
+            "missing baseline {}; run with UPDATE_SNAPSHOTS=1 to create: {e}",
+            baseline_path.display()
+        ),
+    };
+    let expected: Value = serde_json::from_str(&baseline_text).expect("baseline parses as json");
+
+    if actual != expected {
+        if std::env::var("UPDATE_SNAPSHOTS").is_ok() {
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            eprintln!("updated baseline {}", baseline_path.display());
+            return;
+        }
+        let pretty = serde_json::to_string_pretty(&actual).unwrap();
+        panic!(
+            "code-cpp-ast-v1 chunks snapshot drift\n\
+             --- expected ({}) ---\n{baseline_text}\n\
+             --- actual ---\n{pretty}\n\
+             If intentional, re-run with UPDATE_SNAPSHOTS=1.",
+            baseline_path.display()
+        );
+    }
+}
+
+/// Determinism cross-check: re-running the same pipeline yields the same
+/// chunk_ids byte-for-byte.
+#[test]
+fn code_cpp_ast_chunks_are_deterministic() {
+    let policy = fixed_policy();
+    let baseline: Vec<String> = CodeCppAstV1Chunker
+        .chunk(&fixed_doc(), &policy)
+        .unwrap()
+        .into_iter()
+        .map(|c| c.chunk_id.0)
+        .collect();
+    for _ in 0..5 {
+        let again: Vec<String> = CodeCppAstV1Chunker
+            .chunk(&fixed_doc(), &policy)
+            .unwrap()
+            .into_iter()
+            .map(|c| c.chunk_id.0)
+            .collect();
+        assert_eq!(again, baseline);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Test 2 (real extractor): end-to-end extractor → chunker pipeline
+// ---------------------------------------------------------------------------
+
+/// Validates that the real `CppAstExtractor` processes `sample.cpp` and
+/// emits the expected set of symbols through the full chunker pipeline.
+///
+/// `sample.cpp` contains:
+/// - `#include` directives + nested namespace `kebab::chunk` → glue + struct unit
+/// - `class MdHeadingV1Chunker` with methods (ctor, dtor, chunk_doc, operator())
+/// - `template <typename T> T identity(T value)` (template fn)
+/// - `void kebab::global_helper()` (free fn in namespace)
+/// - `int main()` (global free fn)
+#[test]
+fn code_cpp_ast_extractor_snapshot() {
+    let doc = extract_cpp_fixture();
+
+    // Verify the extractor emits all expected named units.
+    let block_syms: Vec<Option<String>> = doc.blocks.iter().filter_map(|b| match b {
+        Block::Code(c) => match &c.common.source_span {
+            SourceSpan::Code { symbol, .. } => Some(symbol.clone()),
+            _ => None,
+        },
+        _ => None,
+    }).collect();
+
+    // Must include namespace-qualified class and its methods
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::MdHeadingV1Chunker")),
+        "class unit missing: {block_syms:?}"
+    );
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::MdHeadingV1Chunker::MdHeadingV1Chunker")),
+        "ctor unit missing: {block_syms:?}"
+    );
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::MdHeadingV1Chunker::~MdHeadingV1Chunker")),
+        "dtor unit missing: {block_syms:?}"
+    );
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::MdHeadingV1Chunker::chunk_doc")),
+        "chunk_doc unit missing: {block_syms:?}"
+    );
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::MdHeadingV1Chunker::operator()")),
+        "operator() unit missing: {block_syms:?}"
+    );
+    // Template function (inside kebab::chunk namespace in the fixture)
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::chunk::identity")),
+        "identity template fn unit missing: {block_syms:?}"
+    );
+    // Free function in outer namespace
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("kebab::global_helper")),
+        "global_helper unit missing: {block_syms:?}"
+    );
+    // Global main
+    assert!(
+        block_syms.iter().any(|s| s.as_deref() == Some("main")),
+        "main unit missing: {block_syms:?}"
+    );
+}
+
+/// End-to-end chunker output from real extractor is deterministic.
+#[test]
+fn code_cpp_ast_extractor_chunks_deterministic() {
+    let doc1 = extract_cpp_fixture();
+    let doc2 = extract_cpp_fixture();
+    assert_eq!(doc1.blocks, doc2.blocks, "extractor output non-deterministic");
+
+    let policy = fixed_policy();
+    let chunks1 = CodeCppAstV1Chunker.chunk(&doc1, &policy).unwrap();
+    let chunks2 = CodeCppAstV1Chunker.chunk(&doc2, &policy).unwrap();
+    assert_eq!(
+        chunks1.iter().map(|c| c.chunk_id.0.clone()).collect::<Vec<_>>(),
+        chunks2.iter().map(|c| c.chunk_id.0.clone()).collect::<Vec<_>>(),
+        "chunker output non-deterministic"
+    );
+}

crates/kebab-chunk/tests/code_go_ast_snapshot.rs

@@ -0,0 +1,221 @@
+//! Snapshot test pinning the `Vec<Chunk>` JSON for a
+//! representative Go code `CanonicalDocument`.
+//!
+//! This is an integration test. `kebab-parse-code` is intentionally NOT
+//! a dev-dep (design §6.3 / §8 boundary: AST extraction is parser-side).
+//! The `CanonicalDocument` is built inline from hand-crafted `Block::Code`
+//! units, which is the same pattern used in `code_rust_ast_v1.rs`'s
+//! internal `code_doc` test helper.
+//!
+//! Set `UPDATE_SNAPSHOTS=1` to re-bake the baseline.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeGoAstV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+    Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel, WorkspacePath,
+    id_for_block, id_for_doc,
+};
+use serde_json::Value;
+use time::OffsetDateTime;
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+fn fixed_doc() -> CanonicalDocument {
+    let wp = WorkspacePath("kebab_eval/metrics.go".into());
+    let aid = AssetId("b".repeat(64));
+    // Pin parser_version so doc_id / block_ids are reproducible.
+    let pv = ParserVersion("code-go-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    // Build a >200-line function body to force split_oversize.
+    let big_body: String = {
+        let header = "func BigCompute(data []int) int {\n";
+        let body: String = (0..210u32)
+            .map(|i| format!("\tv{i} := 0\n\tif {i} < len(data) {{\n\t\tv{i} = data[{i}]\n\t}}\n"))
+            .collect();
+        let footer = "\treturn len(data)\n}";
+        format!("{header}{body}{footer}")
+    };
+    let big_line_count = big_body.lines().count() as u32;
+    let big_line_end = 48 + big_line_count - 1;
+
+    // Representative units:
+    //  0. import block                    (lines 1–5,   ≤200)
+    //  1. free fn `ComputeMRR`            (lines 7–12,  ≤200)
+    //  2. struct `MetricsCollector`       (lines 14–20, ≤200)
+    //  3. struct `BaseEvaluator`          (lines 22–30, ≤200)
+    //  4. method `Run`                    (lines 32–38, ≤200)
+    //  5. method `Report`                 (lines 40–46, ≤200)
+    //  6. BigCompute (>200 lines)         to force split_oversize
+    let raw_units: Vec<(&str, u32, u32, String)> = vec![
+        (
+            "imports",
+            1,
+            5,
+            "import (\n\t\"fmt\"\n\t\"os\"\n\t\"strings\"\n)".to_string(),
+        ),
+        (
+            "ComputeMRR",
+            7,
+            12,
+            "func ComputeMRR(scores []float64) float64 {\n\tif len(scores) == 0 {\n\t\treturn 0.0\n\t}\n\t_ = fmt.Sprintf(\"%v\", scores)\n\treturn 1.0 / float64(len(scores))\n}".to_string(),
+        ),
+        (
+            "MetricsCollector",
+            14,
+            20,
+            "type MetricsCollector struct {\n\tScores []float64\n\tLabels []string\n\tCounts map[string]int\n\tTotals map[string]float64\n\tTags   []string\n}".to_string(),
+        ),
+        (
+            "BaseEvaluator",
+            22,
+            30,
+            "type BaseEvaluator struct {\n\tName string\n}\n\nfunc (e *BaseEvaluator) Evaluate(data []string) error {\n\t_ = os.Stderr\n\t_ = strings.Join(data, \",\")\n\treturn nil\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.Run",
+            32,
+            38,
+            "func (m *MetricsCollector) Run(inputs []float64) {\n\tfor _, inp := range inputs {\n\t\tm.Scores = append(\n\t\t\tm.Scores,\n\t\t\tinp,\n\t\t)\n\t}\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.Report",
+            40,
+            46,
+            "func (m *MetricsCollector) Report() map[string]interface{} {\n\treturn map[string]interface{}{\n\t\t\"mean\":  0.0,\n\t\t\"count\": len(m.Scores),\n\t\t\"tags\":  m.Tags,\n\t}\n}".to_string(),
+        ),
+        ("BigCompute", 48, big_line_end, big_body),
+    ];
+
+    let blocks: Vec<Block> = raw_units
+        .iter()
+        .enumerate()
+        .map(|(i, (sym, ls, le, code))| {
+            let span = SourceSpan::Code {
+                line_start: *ls,
+                line_end: *le,
+                symbol: Some((*sym).to_string()),
+                lang: Some("go".into()),
+            };
+            let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+            Block::Code(CodeBlock {
+                common: CommonBlock {
+                    block_id: bid,
+                    heading_path: vec![],
+                    source_span: span,
+                },
+                lang: Some("go".into()),
+                code: code.clone(),
+            })
+        })
+        .collect();
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "metrics.go".into(),
+        lang: Lang("und".into()),
+        blocks,
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("go".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn fixed_policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-go-ast-v1".into()),
+    }
+}
+
+#[test]
+fn code_go_ast_chunks_snapshot() {
+    let doc = fixed_doc();
+    let policy = fixed_policy();
+
+    let chunks = CodeGoAstV1Chunker.chunk(&doc, &policy).expect("chunk");
+    let actual = serde_json::to_value(&chunks).unwrap();
+
+    let dir = fixtures_dir();
+    let baseline_path = dir.join("code-sample.go.chunks.snapshot.json");
+    let baseline_text = match std::fs::read_to_string(&baseline_path) {
+        Ok(s) => s,
+        Err(_) if std::env::var("UPDATE_SNAPSHOTS").is_ok() => {
+            std::fs::create_dir_all(&dir).unwrap();
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            return;
+        }
+        Err(e) => panic!(
+            "missing baseline {}; run with UPDATE_SNAPSHOTS=1 to create: {e}",
+            baseline_path.display()
+        ),
+    };
+    let expected: Value = serde_json::from_str(&baseline_text).expect("baseline parses as json");
+
+    if actual != expected {
+        if std::env::var("UPDATE_SNAPSHOTS").is_ok() {
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            eprintln!("updated baseline {}", baseline_path.display());
+            return;
+        }
+        let pretty = serde_json::to_string_pretty(&actual).unwrap();
+        panic!(
+            "code-go-ast-v1 chunks snapshot drift\n\
+             --- expected ({}) ---\n{baseline_text}\n\
+             --- actual ---\n{pretty}\n\
+             If intentional, re-run with UPDATE_SNAPSHOTS=1.",
+            baseline_path.display()
+        );
+    }
+}
+
+/// Determinism cross-check: re-running the same pipeline yields the same
+/// chunk_ids byte-for-byte.
+#[test]
+fn code_go_ast_chunks_are_deterministic() {
+    let policy = fixed_policy();
+    let baseline: Vec<String> = CodeGoAstV1Chunker
+        .chunk(&fixed_doc(), &policy)
+        .unwrap()
+        .into_iter()
+        .map(|c| c.chunk_id.0)
+        .collect();
+    for _ in 0..5 {
+        let again: Vec<String> = CodeGoAstV1Chunker
+            .chunk(&fixed_doc(), &policy)
+            .unwrap()
+            .into_iter()
+            .map(|c| c.chunk_id.0)
+            .collect();
+        assert_eq!(again, baseline);
+    }
+}

crates/kebab-chunk/tests/code_java_ast_snapshot.rs

@@ -0,0 +1,221 @@
+//! Snapshot test pinning the `Vec<Chunk>` JSON for a
+//! representative Java code `CanonicalDocument`.
+//!
+//! This is an integration test. `kebab-parse-code` is intentionally NOT
+//! a dev-dep (design §6.3 / §8 boundary: AST extraction is parser-side).
+//! The `CanonicalDocument` is built inline from hand-crafted `Block::Code`
+//! units, which is the same pattern used in `code_rust_ast_v1.rs`'s
+//! internal `code_doc` test helper.
+//!
+//! Set `UPDATE_SNAPSHOTS=1` to re-bake the baseline.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeJavaAstV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+    Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel, WorkspacePath,
+    id_for_block, id_for_doc,
+};
+use serde_json::Value;
+use time::OffsetDateTime;
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+fn fixed_doc() -> CanonicalDocument {
+    let wp = WorkspacePath("src/main/java/com/example/Metrics.java".into());
+    let aid = AssetId("b".repeat(64));
+    // Pin parser_version so doc_id / block_ids are reproducible.
+    let pv = ParserVersion("code-java-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    // Build a >200-line method body to force split_oversize.
+    let big_body: String = {
+        let header = "public class BigCompute {\n    public int compute(int[] data) {\n";
+        let body: String = (0..210u32)
+            .map(|i| format!("        int v{i} = {i} < data.length ? data[{i}] : 0;\n"))
+            .collect();
+        let footer = "        return data.length;\n    }\n}";
+        format!("{header}{body}{footer}")
+    };
+    let big_line_count = big_body.lines().count() as u32;
+    let big_line_end = 48 + big_line_count - 1;
+
+    // Representative units:
+    //  0. import block                      (lines 1–5,   ≤200)
+    //  1. free method `computeMRR`          (lines 7–12,  ≤200)
+    //  2. class `MetricsCollector`          (lines 14–20, ≤200)
+    //  3. class `BaseEvaluator`             (lines 22–30, ≤200)
+    //  4. method `MetricsCollector.run`     (lines 32–38, ≤200)
+    //  5. method `MetricsCollector.report`  (lines 40–46, ≤200)
+    //  6. BigCompute (>200 lines)           to force split_oversize
+    let raw_units: Vec<(&str, u32, u32, String)> = vec![
+        (
+            "imports",
+            1,
+            5,
+            "import java.util.List;\nimport java.util.Map;\nimport java.util.ArrayList;\nimport java.util.HashMap;\nimport java.util.stream.Collectors;".to_string(),
+        ),
+        (
+            "computeMRR",
+            7,
+            12,
+            "public static double computeMRR(List<Double> scores) {\n    if (scores.isEmpty()) {\n        return 0.0;\n    }\n    return 1.0 / scores.size();\n}".to_string(),
+        ),
+        (
+            "MetricsCollector",
+            14,
+            20,
+            "public class MetricsCollector {\n    private List<Double> scores;\n    private List<String> labels;\n    private Map<String, Integer> counts;\n    private Map<String, Double> totals;\n    private List<String> tags;\n}".to_string(),
+        ),
+        (
+            "BaseEvaluator",
+            22,
+            30,
+            "public class BaseEvaluator {\n    private String name;\n\n    public BaseEvaluator(String name) {\n        this.name = name;\n    }\n\n    public void evaluate(List<String> data) throws Exception {\n        String joined = String.join(\",\", data);\n    }\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.run",
+            32,
+            38,
+            "public void run(List<Double> inputs) {\n    for (Double inp : inputs) {\n        scores.add(\n            inp\n        );\n    }\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.report",
+            40,
+            46,
+            "public Map<String, Object> report() {\n    Map<String, Object> result = new HashMap<>();\n    result.put(\"mean\", 0.0);\n    result.put(\"count\", scores.size());\n    result.put(\"tags\", tags);\n    return result;\n}".to_string(),
+        ),
+        ("BigCompute", 48, big_line_end, big_body),
+    ];
+
+    let blocks: Vec<Block> = raw_units
+        .iter()
+        .enumerate()
+        .map(|(i, (sym, ls, le, code))| {
+            let span = SourceSpan::Code {
+                line_start: *ls,
+                line_end: *le,
+                symbol: Some((*sym).to_string()),
+                lang: Some("java".into()),
+            };
+            let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+            Block::Code(CodeBlock {
+                common: CommonBlock {
+                    block_id: bid,
+                    heading_path: vec![],
+                    source_span: span,
+                },
+                lang: Some("java".into()),
+                code: code.clone(),
+            })
+        })
+        .collect();
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "Metrics.java".into(),
+        lang: Lang("und".into()),
+        blocks,
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("java".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn fixed_policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-java-ast-v1".into()),
+    }
+}
+
+#[test]
+fn code_java_ast_chunks_snapshot() {
+    let doc = fixed_doc();
+    let policy = fixed_policy();
+
+    let chunks = CodeJavaAstV1Chunker.chunk(&doc, &policy).expect("chunk");
+    let actual = serde_json::to_value(&chunks).unwrap();
+
+    let dir = fixtures_dir();
+    let baseline_path = dir.join("code-sample.java.chunks.snapshot.json");
+    let baseline_text = match std::fs::read_to_string(&baseline_path) {
+        Ok(s) => s,
+        Err(_) if std::env::var("UPDATE_SNAPSHOTS").is_ok() => {
+            std::fs::create_dir_all(&dir).unwrap();
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            return;
+        }
+        Err(e) => panic!(
+            "missing baseline {}; run with UPDATE_SNAPSHOTS=1 to create: {e}",
+            baseline_path.display()
+        ),
+    };
+    let expected: Value = serde_json::from_str(&baseline_text).expect("baseline parses as json");
+
+    if actual != expected {
+        if std::env::var("UPDATE_SNAPSHOTS").is_ok() {
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            eprintln!("updated baseline {}", baseline_path.display());
+            return;
+        }
+        let pretty = serde_json::to_string_pretty(&actual).unwrap();
+        panic!(
+            "code-java-ast-v1 chunks snapshot drift\n\
+             --- expected ({}) ---\n{baseline_text}\n\
+             --- actual ---\n{pretty}\n\
+             If intentional, re-run with UPDATE_SNAPSHOTS=1.",
+            baseline_path.display()
+        );
+    }
+}
+
+/// Determinism cross-check: re-running the same pipeline yields the same
+/// chunk_ids byte-for-byte.
+#[test]
+fn code_java_ast_chunks_are_deterministic() {
+    let policy = fixed_policy();
+    let baseline: Vec<String> = CodeJavaAstV1Chunker
+        .chunk(&fixed_doc(), &policy)
+        .unwrap()
+        .into_iter()
+        .map(|c| c.chunk_id.0)
+        .collect();
+    for _ in 0..5 {
+        let again: Vec<String> = CodeJavaAstV1Chunker
+            .chunk(&fixed_doc(), &policy)
+            .unwrap()
+            .into_iter()
+            .map(|c| c.chunk_id.0)
+            .collect();
+        assert_eq!(again, baseline);
+    }
+}

crates/kebab-chunk/tests/code_kotlin_ast_snapshot.rs

@@ -0,0 +1,221 @@
+//! Snapshot test pinning the `Vec<Chunk>` JSON for a
+//! representative Kotlin code `CanonicalDocument`.
+//!
+//! This is an integration test. `kebab-parse-code` is intentionally NOT
+//! a dev-dep (design §6.3 / §8 boundary: AST extraction is parser-side).
+//! The `CanonicalDocument` is built inline from hand-crafted `Block::Code`
+//! units, which is the same pattern used in `code_rust_ast_v1.rs`'s
+//! internal `code_doc` test helper.
+//!
+//! Set `UPDATE_SNAPSHOTS=1` to re-bake the baseline.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeKotlinAstV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock, CommonBlock,
+    Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel, WorkspacePath,
+    id_for_block, id_for_doc,
+};
+use serde_json::Value;
+use time::OffsetDateTime;
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+fn fixed_doc() -> CanonicalDocument {
+    let wp = WorkspacePath("src/main/kotlin/com/example/Metrics.kt".into());
+    let aid = AssetId("b".repeat(64));
+    // Pin parser_version so doc_id / block_ids are reproducible.
+    let pv = ParserVersion("code-kotlin-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    // Build a >200-line function body to force split_oversize.
+    let big_body: String = {
+        let header = "class BigCompute {\n    fun compute(data: IntArray): Int {\n";
+        let body: String = (0..210u32)
+            .map(|i| format!("        val v{i} = if ({i} < data.size) data[{i}] else 0\n"))
+            .collect();
+        let footer = "        return data.size\n    }\n}";
+        format!("{header}{body}{footer}")
+    };
+    let big_line_count = big_body.lines().count() as u32;
+    let big_line_end = 48 + big_line_count - 1;
+
+    // Representative units:
+    //  0. import block                      (lines 1–5,   ≤200)
+    //  1. top-level fn `computeMRR`         (lines 7–12,  ≤200)
+    //  2. data class `MetricsCollector`     (lines 14–20, ≤200)
+    //  3. class `BaseEvaluator`             (lines 22–30, ≤200)
+    //  4. method `MetricsCollector.run`     (lines 32–38, ≤200)
+    //  5. method `MetricsCollector.report`  (lines 40–46, ≤200)
+    //  6. BigCompute (>200 lines)           to force split_oversize
+    let raw_units: Vec<(&str, u32, u32, String)> = vec![
+        (
+            "imports",
+            1,
+            5,
+            "import kotlin.collections.List\nimport kotlin.collections.Map\nimport kotlin.collections.MutableList\nimport kotlin.collections.MutableMap\nimport kotlin.collections.mutableListOf".to_string(),
+        ),
+        (
+            "computeMRR",
+            7,
+            12,
+            "fun computeMRR(scores: List<Double>): Double {\n    if (scores.isEmpty()) {\n        return 0.0\n    }\n    return 1.0 / scores.size\n}".to_string(),
+        ),
+        (
+            "MetricsCollector",
+            14,
+            20,
+            "data class MetricsCollector(\n    val scores: MutableList<Double> = mutableListOf(),\n    val labels: MutableList<String> = mutableListOf(),\n    val counts: MutableMap<String, Int> = mutableMapOf(),\n    val totals: MutableMap<String, Double> = mutableMapOf(),\n    val tags: MutableList<String> = mutableListOf(),\n)".to_string(),
+        ),
+        (
+            "BaseEvaluator",
+            22,
+            30,
+            "open class BaseEvaluator(val name: String) {\n\n    fun evaluate(data: List<String>) {\n        val joined = data.joinToString(\",\")\n        println(joined)\n    }\n\n    open fun describe(): String = name\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.run",
+            32,
+            38,
+            "fun MetricsCollector.run(inputs: List<Double>) {\n    for (inp in inputs) {\n        scores.add(\n            inp\n        )\n    }\n}".to_string(),
+        ),
+        (
+            "MetricsCollector.report",
+            40,
+            46,
+            "fun MetricsCollector.report(): Map<String, Any> {\n    return mapOf(\n        \"mean\" to 0.0,\n        \"count\" to scores.size,\n        \"tags\" to tags,\n    )\n}".to_string(),
+        ),
+        ("BigCompute", 48, big_line_end, big_body),
+    ];
+
+    let blocks: Vec<Block> = raw_units
+        .iter()
+        .enumerate()
+        .map(|(i, (sym, ls, le, code))| {
+            let span = SourceSpan::Code {
+                line_start: *ls,
+                line_end: *le,
+                symbol: Some((*sym).to_string()),
+                lang: Some("kotlin".into()),
+            };
+            let bid = id_for_block(&doc_id, "code", &[], i as u32, &span);
+            Block::Code(CodeBlock {
+                common: CommonBlock {
+                    block_id: bid,
+                    heading_path: vec![],
+                    source_span: span,
+                },
+                lang: Some("kotlin".into()),
+                code: code.clone(),
+            })
+        })
+        .collect();
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "Metrics.kt".into(),
+        lang: Lang("und".into()),
+        blocks,
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("kotlin".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn fixed_policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-kotlin-ast-v1".into()),
+    }
+}
+
+#[test]
+fn code_kotlin_ast_chunks_snapshot() {
+    let doc = fixed_doc();
+    let policy = fixed_policy();
+
+    let chunks = CodeKotlinAstV1Chunker.chunk(&doc, &policy).expect("chunk");
+    let actual = serde_json::to_value(&chunks).unwrap();
+
+    let dir = fixtures_dir();
+    let baseline_path = dir.join("code-sample.kt.chunks.snapshot.json");
+    let baseline_text = match std::fs::read_to_string(&baseline_path) {
+        Ok(s) => s,
+        Err(_) if std::env::var("UPDATE_SNAPSHOTS").is_ok() => {
+            std::fs::create_dir_all(&dir).unwrap();
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            return;
+        }
+        Err(e) => panic!(
+            "missing baseline {}; run with UPDATE_SNAPSHOTS=1 to create: {e}",
+            baseline_path.display()
+        ),
+    };
+    let expected: Value = serde_json::from_str(&baseline_text).expect("baseline parses as json");
+
+    if actual != expected {
+        if std::env::var("UPDATE_SNAPSHOTS").is_ok() {
+            let pretty = serde_json::to_string_pretty(&actual).unwrap();
+            std::fs::write(&baseline_path, format!("{pretty}\n")).unwrap();
+            eprintln!("updated baseline {}", baseline_path.display());
+            return;
+        }
+        let pretty = serde_json::to_string_pretty(&actual).unwrap();
+        panic!(
+            "code-kotlin-ast-v1 chunks snapshot drift\n\
+             --- expected ({}) ---\n{baseline_text}\n\
+             --- actual ---\n{pretty}\n\
+             If intentional, re-run with UPDATE_SNAPSHOTS=1.",
+            baseline_path.display()
+        );
+    }
+}
+
+/// Determinism cross-check: re-running the same pipeline yields the same
+/// chunk_ids byte-for-byte.
+#[test]
+fn code_kotlin_ast_chunks_are_deterministic() {
+    let policy = fixed_policy();
+    let baseline: Vec<String> = CodeKotlinAstV1Chunker
+        .chunk(&fixed_doc(), &policy)
+        .unwrap()
+        .into_iter()
+        .map(|c| c.chunk_id.0)
+        .collect();
+    for _ in 0..5 {
+        let again: Vec<String> = CodeKotlinAstV1Chunker
+            .chunk(&fixed_doc(), &policy)
+            .unwrap()
+            .into_iter()
+            .map(|c| c.chunk_id.0)
+            .collect();
+        assert_eq!(again, baseline);
+    }
+}

crates/kebab-chunk/tests/code_text_paragraph_v1.rs

@@ -0,0 +1,270 @@
+//! Behavioural tests for `CodeTextParagraphV1Chunker`.
+//!
+//! Documents are constructed manually (no kebab-parse-code dependency) by
+//! placing raw text into a single `Block::Code`, mirroring the pattern used
+//! in `k8s_manifest_resource_v1.rs`.
+
+use std::path::PathBuf;
+
+use kebab_chunk::CodeTextParagraphV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock,
+    CommonBlock, Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel,
+    WorkspacePath, id_for_block, id_for_doc,
+};
+use time::OffsetDateTime;
+
+// ── helpers ──────────────────────────────────────────────────────────────────
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+/// Build a `CanonicalDocument` with a single `Block::Code` containing `text`
+/// and the supplied `lang` label.
+fn text_doc(lang: &str, text: &str) -> CanonicalDocument {
+    let wp = WorkspacePath("scripts/sample.sh".into());
+    let aid = AssetId("d".repeat(64));
+    let pv = ParserVersion("code-text-paragraph-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    let line_count = text.lines().count() as u32;
+    let span = SourceSpan::Code {
+        line_start: 1,
+        line_end: line_count.max(1),
+        symbol: None,
+        lang: Some(lang.into()),
+    };
+    let bid = id_for_block(&doc_id, "code", &[], 0, &span);
+    let block = Block::Code(CodeBlock {
+        common: CommonBlock {
+            block_id: bid,
+            heading_path: vec![],
+            source_span: span,
+        },
+        lang: Some(lang.into()),
+        code: text.to_string(),
+    });
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "sample.sh".into(),
+        lang: Lang("und".into()),
+        blocks: vec![block],
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some(lang.into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("code-text-paragraph-v1".into()),
+    }
+}
+
+// ── tests ─────────────────────────────────────────────────────────────────────
+
+/// `sample_shell.sh` has 4 paragraphs separated by 3 blank lines:
+///   - paragraph 1: lines 1-2  (shebang + set -euo pipefail)
+///   - paragraph 2: lines 4-7  (env setup block)
+///   - paragraph 3: lines 9-11 (ingest block)
+///   - paragraph 4: lines 13-15 (report block)
+///
+/// We assert:
+///   - exactly 4 chunks (one per paragraph)
+///   - all symbols are None (Tier 3 spec §9.3)
+///   - all langs are "shell"
+///   - line ranges are strictly ascending and do NOT include the blank lines
+///     (lines 3, 8, 12 must not appear in any range)
+#[test]
+fn shell_multi_paragraph_splits_on_blank_lines() {
+    let fixture_path = fixtures_dir().join("sample_shell.sh");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = text_doc("shell", &text);
+    let chunks = CodeTextParagraphV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        4,
+        "expected 4 chunks (one per paragraph), got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    // All symbols must be None (Tier 3 requirement).
+    for (i, chunk) in chunks.iter().enumerate() {
+        match &chunk.source_spans[0] {
+            SourceSpan::Code { symbol, .. } => {
+                assert!(
+                    symbol.is_none(),
+                    "chunk[{i}] symbol must be None for Tier 3 chunker, got {symbol:?}"
+                );
+            }
+            other => panic!("chunk[{i}]: expected Code span, got {other:?}"),
+        }
+    }
+
+    // All langs must be "shell".
+    for (i, chunk) in chunks.iter().enumerate() {
+        match &chunk.source_spans[0] {
+            SourceSpan::Code { lang, .. } => {
+                assert_eq!(
+                    lang.as_deref(),
+                    Some("shell"),
+                    "chunk[{i}] lang must be 'shell', got {lang:?}"
+                );
+            }
+            other => panic!("chunk[{i}]: expected Code span, got {other:?}"),
+        }
+    }
+
+    // Line ranges must be strictly ascending with no overlap,
+    // and blank lines (3, 8, 12) must not be included in any range.
+    let expected_ranges: &[(u32, u32)] = &[(1, 2), (4, 7), (9, 11), (13, 15)];
+    let actual_ranges: Vec<(u32, u32)> = chunks
+        .iter()
+        .map(|c| match &c.source_spans[0] {
+            SourceSpan::Code {
+                line_start,
+                line_end,
+                ..
+            } => (*line_start, *line_end),
+            other => panic!("expected Code span, got {other:?}"),
+        })
+        .collect();
+
+    assert_eq!(
+        actual_ranges, expected_ranges,
+        "line ranges mismatch: got {actual_ranges:?}, expected {expected_ranges:?}"
+    );
+}
+
+/// `sample_long_paragraph.txt` has exactly 200 non-blank lines and no blank
+/// lines, so the entire file is one paragraph.  200 > 80 (FALLBACK_LINES_PER_CHUNK),
+/// so the oversize window split fires with stride 60:
+///   - window 1: lines 1-80
+///   - window 2: lines 61-140
+///   - window 3: lines 121-200
+///
+/// All chunk_ids must be distinct (the #L{window_start} split_key suffix).
+#[test]
+fn single_long_paragraph_line_window_split() {
+    let fixture_path = fixtures_dir().join("sample_long_paragraph.txt");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    assert_eq!(
+        text.lines().count(),
+        200,
+        "fixture must have exactly 200 lines"
+    );
+
+    let doc = text_doc("shell", &text);
+    let chunks = CodeTextParagraphV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        3,
+        "expected 3 window chunks for 200-line paragraph, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let expected_ranges: &[(u32, u32)] = &[(1, 80), (61, 140), (121, 200)];
+    let actual_ranges: Vec<(u32, u32)> = chunks
+        .iter()
+        .map(|c| match &c.source_spans[0] {
+            SourceSpan::Code {
+                line_start,
+                line_end,
+                ..
+            } => (*line_start, *line_end),
+            other => panic!("expected Code span, got {other:?}"),
+        })
+        .collect();
+
+    assert_eq!(
+        actual_ranges, expected_ranges,
+        "window ranges mismatch: got {actual_ranges:?}, expected {expected_ranges:?}"
+    );
+
+    // All chunk_ids must be distinct (#L{window_start} suffix differentiates them).
+    let ids: std::collections::HashSet<_> = chunks.iter().map(|c| c.chunk_id.clone()).collect();
+    assert_eq!(
+        ids.len(),
+        chunks.len(),
+        "oversize window chunks must have distinct chunk_ids"
+    );
+}
+
+/// An empty source file (no non-blank lines) must yield zero chunks.
+#[test]
+fn empty_file_emits_zero_chunks() {
+    let doc = text_doc("shell", "");
+    let chunks = CodeTextParagraphV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        0,
+        "empty file must yield 0 chunks, got {}: {chunks:#?}",
+        chunks.len()
+    );
+}
+
+/// The `lang` field on each emitted chunk must match the `lang` passed to
+/// `text_doc`, regardless of content.  `symbol` must be `None` (Tier 3 spec).
+#[test]
+fn lang_field_preserved_from_input_doc() {
+    let doc = text_doc("yaml", "key1: value1\nkey2: value2\n");
+    let chunks = CodeTextParagraphV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert!(!chunks.is_empty(), "expected at least one chunk");
+
+    match &chunks[0].source_spans[0] {
+        SourceSpan::Code { lang, symbol, .. } => {
+            assert_eq!(
+                lang.as_deref(),
+                Some("yaml"),
+                "lang must be 'yaml', got {lang:?}"
+            );
+            assert!(
+                symbol.is_none(),
+                "symbol must be None for Tier 3 chunker, got {symbol:?}"
+            );
+        }
+        other => panic!("expected Code span, got {other:?}"),
+    }
+}

crates/kebab-chunk/tests/dockerfile_file_v1.rs

@@ -0,0 +1,134 @@
+//! Behavioural tests for `DockerfileFileV1Chunker`.
+//!
+//! Documents are constructed manually (no kebab-parse-code dependency) by
+//! placing the raw Dockerfile text into a single `Block::Code`, mirroring the
+//! pattern used in `k8s_manifest_resource_v1.rs`.
+
+use std::path::PathBuf;
+
+use kebab_chunk::DockerfileFileV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock,
+    CommonBlock, Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel,
+    WorkspacePath, id_for_block, id_for_doc,
+};
+use time::OffsetDateTime;
+
+// ── helpers ──────────────────────────────────────────────────────────────────
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+/// Build a `CanonicalDocument` with a single `Block::Code` containing `dockerfile_text`.
+fn dockerfile_doc(dockerfile_text: &str) -> CanonicalDocument {
+    let wp = WorkspacePath("build/Dockerfile".into());
+    let aid = AssetId("d".repeat(64));
+    let pv = ParserVersion("code-dockerfile-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    let line_count = dockerfile_text.lines().count() as u32;
+    let span = SourceSpan::Code {
+        line_start: 1,
+        line_end: line_count.max(1),
+        symbol: None,
+        lang: Some("dockerfile".into()),
+    };
+    let bid = id_for_block(&doc_id, "code", &[], 0, &span);
+    let block = Block::Code(CodeBlock {
+        common: CommonBlock {
+            block_id: bid,
+            heading_path: vec![],
+            source_span: span,
+        },
+        lang: Some("dockerfile".into()),
+        code: dockerfile_text.to_string(),
+    });
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "Dockerfile".into(),
+        lang: Lang("und".into()),
+        blocks: vec![block],
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("dockerfile".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("dockerfile-file-v1".into()),
+    }
+}
+
+// ── tests ─────────────────────────────────────────────────────────────────────
+
+/// A simple 5-line Dockerfile fixture must emit exactly 1 chunk with the
+/// correct symbol, lang, and line range.
+#[test]
+fn dockerfile_emits_single_chunk() {
+    let fixture_path = fixtures_dir().join("sample.dockerfile");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = dockerfile_doc(&text);
+    let chunks = DockerfileFileV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    // Inspect the Chunk's source_spans for symbol / lang / line range.
+    let span = chunks[0].source_spans.first().expect("at least one span");
+    match span {
+        SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol,
+            lang,
+        } => {
+            assert_eq!(*line_start, 1, "line_start must be 1");
+            assert_eq!(*line_end, 5, "line_end must be 5 (5-line fixture)");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<dockerfile>"),
+                "symbol must be '<dockerfile>'"
+            );
+            assert_eq!(lang.as_deref(), Some("dockerfile"), "lang must be 'dockerfile'");
+        }
+        other => panic!("expected SourceSpan::Code, got {other:?}"),
+    }
+
+    // Verify chunker_version label.
+    assert_eq!(chunks[0].chunker_version.0, "dockerfile-file-v1");
+}

crates/kebab-chunk/tests/fixtures/code-sample.c.chunks.snapshot.json

@@ -0,0 +1,86 @@
+[
+  {
+    "block_ids": [
+      "8149e12ca002489acb4a0f74c97a061a"
+    ],
+    "chunk_id": "ec3cf06ae56c8e9796bbc9196438b7c5",
+    "chunker_version": "code-c-ast-v1",
+    "doc_id": "6bec42dd593920a060541db16c4e8e45",
+    "heading_path": [],
+    "policy_hash": "ecfad2ec1223662d",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "c",
+        "line_end": 18,
+        "line_start": 1,
+        "symbol": "<top-level>"
+      }
+    ],
+    "text": "#include <stdio.h>\n#include <stdlib.h>\n\n#define MAX_BUF 4096\n\ntypedef enum {\n    OK = 0,\n    ERR_PARSE,\n    ERR_IO,\n} status_t;\n\ntypedef struct {\n    int id;\n    char name[64];\n    status_t status;\n} record_t;\n\nstatic int counter = 0;",
+    "token_estimate": 78
+  },
+  {
+    "block_ids": [
+      "1baaa89f21a47b2f32d6396a24a85454"
+    ],
+    "chunk_id": "c2d7a81c898106733ef2e703774a6a4a",
+    "chunker_version": "code-c-ast-v1",
+    "doc_id": "6bec42dd593920a060541db16c4e8e45",
+    "heading_path": [],
+    "policy_hash": "ecfad2ec1223662d",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "c",
+        "line_end": 23,
+        "line_start": 20,
+        "symbol": "parse_record"
+      }
+    ],
+    "text": "int parse_record(const char *line, record_t *out) {\n    if (line == NULL || out == NULL) return ERR_PARSE;\n    return OK;\n}",
+    "token_estimate": 41
+  },
+  {
+    "block_ids": [
+      "8d0e14cbcc6d1e92d7878ab796ea68b8"
+    ],
+    "chunk_id": "0e4d7b131ab64eba03b51903b5d8f96d",
+    "chunker_version": "code-c-ast-v1",
+    "doc_id": "6bec42dd593920a060541db16c4e8e45",
+    "heading_path": [],
+    "policy_hash": "ecfad2ec1223662d",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "c",
+        "line_end": 27,
+        "line_start": 25,
+        "symbol": "print_record"
+      }
+    ],
+    "text": "void print_record(const record_t *r) {\n    printf(\"[%d] %s (status=%d)\\n\", r->id, r->name, r->status);\n}",
+    "token_estimate": 35
+  },
+  {
+    "block_ids": [
+      "9c2ede84423871b615d48c38fefb1853"
+    ],
+    "chunk_id": "e076f8edb2ff141d7e99b4106bb95157",
+    "chunker_version": "code-c-ast-v1",
+    "doc_id": "6bec42dd593920a060541db16c4e8e45",
+    "heading_path": [],
+    "policy_hash": "ecfad2ec1223662d",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "c",
+        "line_end": 33,
+        "line_start": 29,
+        "symbol": "main"
+      }
+    ],
+    "text": "int main(void) {\n    record_t r = { .id = 1, .name = \"foo\", .status = OK };\n    print_record(&r);\n    return 0;\n}",
+    "token_estimate": 38
+  }
+]

crates/kebab-chunk/tests/fixtures/code-sample.cpp.chunks.snapshot.json

@@ -0,0 +1,107 @@
+[
+  {
+    "block_ids": [
+      "53292605459065d170cd36c118e20546"
+    ],
+    "chunk_id": "50a5b324300d9082eac4ce2a422810e1",
+    "chunker_version": "code-cpp-ast-v1",
+    "doc_id": "fff1e1f0a7ff70ef682937470e5d1d28",
+    "heading_path": [],
+    "policy_hash": "71f3c07bb9ec1d09",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "cpp",
+        "line_end": 4,
+        "line_start": 1,
+        "symbol": "<top-level>"
+      }
+    ],
+    "text": "#include <string>\n#include <vector>\n\nnamespace kebab {",
+    "token_estimate": 18
+  },
+  {
+    "block_ids": [
+      "f349acad94c9fa4cf9ad1c0a93e83610"
+    ],
+    "chunk_id": "0e6bc7c522665af8a4b0f66afb9d29c8",
+    "chunker_version": "code-cpp-ast-v1",
+    "doc_id": "fff1e1f0a7ff70ef682937470e5d1d28",
+    "heading_path": [],
+    "policy_hash": "71f3c07bb9ec1d09",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "cpp",
+        "line_end": 20,
+        "line_start": 6,
+        "symbol": "kebab::chunk::MdHeadingV1Chunker"
+      }
+    ],
+    "text": "class MdHeadingV1Chunker {\npublic:\n    MdHeadingV1Chunker() = default;\n    ~MdHeadingV1Chunker() = default;\n\n    std::string chunk_doc(const std::string& doc) {\n        return doc;\n    }\n\n    int operator()(int x) const {\n        return x * 2;\n    }\n\nprivate:\n    int counter_ = 0;\n};",
+    "token_estimate": 95
+  },
+  {
+    "block_ids": [
+      "8b9811387717d0bd4abf84abcc35b8b1"
+    ],
+    "chunk_id": "d9326d252905b665b2adb9a416c20451",
+    "chunker_version": "code-cpp-ast-v1",
+    "doc_id": "fff1e1f0a7ff70ef682937470e5d1d28",
+    "heading_path": [],
+    "policy_hash": "71f3c07bb9ec1d09",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "cpp",
+        "line_end": 25,
+        "line_start": 22,
+        "symbol": "kebab::identity"
+      }
+    ],
+    "text": "template <typename T>\nT identity(T value) {\n    return value;\n}",
+    "token_estimate": 21
+  },
+  {
+    "block_ids": [
+      "1754cb6b971f6a4cb292f144a4f0570b"
+    ],
+    "chunk_id": "56ee5f991de4a413c016da8dc4acfc35",
+    "chunker_version": "code-cpp-ast-v1",
+    "doc_id": "fff1e1f0a7ff70ef682937470e5d1d28",
+    "heading_path": [],
+    "policy_hash": "71f3c07bb9ec1d09",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "cpp",
+        "line_end": 29,
+        "line_start": 27,
+        "symbol": "kebab::global_helper"
+      }
+    ],
+    "text": "void global_helper() {\n    // free function in kebab namespace\n}",
+    "token_estimate": 22
+  },
+  {
+    "block_ids": [
+      "14b5f3393d6d25f822f5b70763d24acd"
+    ],
+    "chunk_id": "c0d7c043cdd575c530db3909b54cc906",
+    "chunker_version": "code-cpp-ast-v1",
+    "doc_id": "fff1e1f0a7ff70ef682937470e5d1d28",
+    "heading_path": [],
+    "policy_hash": "71f3c07bb9ec1d09",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "cpp",
+        "line_end": 34,
+        "line_start": 31,
+        "symbol": "main"
+      }
+    ],
+    "text": "int main() {\n    kebab::chunk::MdHeadingV1Chunker c;\n    return 0;\n}",
+    "token_estimate": 23
+  }
+]

crates/kebab-chunk/tests/fixtures/code-sample.go.chunks.snapshot.json

@@ -0,0 +1,233 @@
+[
+  {
+    "block_ids": [
+      "c182bf37e32c7fc1b868bd617f8eaf66"
+    ],
+    "chunk_id": "43de518d946dc18ec040ae20d74e0cff",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 5,
+        "line_start": 1,
+        "symbol": "imports"
+      }
+    ],
+    "text": "import (\n\t\"fmt\"\n\t\"os\"\n\t\"strings\"\n)",
+    "token_estimate": 12
+  },
+  {
+    "block_ids": [
+      "c9992cdcfdf3c2a7700a4abc4782a8a4"
+    ],
+    "chunk_id": "af4c382a83f1e8cdea495d8b33c11abc",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 12,
+        "line_start": 7,
+        "symbol": "ComputeMRR"
+      }
+    ],
+    "text": "func ComputeMRR(scores []float64) float64 {\n\tif len(scores) == 0 {\n\t\treturn 0.0\n\t}\n\t_ = fmt.Sprintf(\"%v\", scores)\n\treturn 1.0 / float64(len(scores))\n}",
+    "token_estimate": 50
+  },
+  {
+    "block_ids": [
+      "5f18dc3e79fe946ba05d32c3bfc00684"
+    ],
+    "chunk_id": "4be6d8f180bc19b8651877e5264852ac",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 20,
+        "line_start": 14,
+        "symbol": "MetricsCollector"
+      }
+    ],
+    "text": "type MetricsCollector struct {\n\tScores []float64\n\tLabels []string\n\tCounts map[string]int\n\tTotals map[string]float64\n\tTags   []string\n}",
+    "token_estimate": 45
+  },
+  {
+    "block_ids": [
+      "3009cc022ca832c323393e4f9bcdb388"
+    ],
+    "chunk_id": "3ae182f4c6d304ee7f0aaf447142f948",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 30,
+        "line_start": 22,
+        "symbol": "BaseEvaluator"
+      }
+    ],
+    "text": "type BaseEvaluator struct {\n\tName string\n}\n\nfunc (e *BaseEvaluator) Evaluate(data []string) error {\n\t_ = os.Stderr\n\t_ = strings.Join(data, \",\")\n\treturn nil\n}",
+    "token_estimate": 53
+  },
+  {
+    "block_ids": [
+      "e0e83d1d7f9327a1902ae9a8f67c1f1c"
+    ],
+    "chunk_id": "b962f14980e756bb8ba514e2282756cd",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 38,
+        "line_start": 32,
+        "symbol": "MetricsCollector.Run"
+      }
+    ],
+    "text": "func (m *MetricsCollector) Run(inputs []float64) {\n\tfor _, inp := range inputs {\n\t\tm.Scores = append(\n\t\t\tm.Scores,\n\t\t\tinp,\n\t\t)\n\t}\n}",
+    "token_estimate": 44
+  },
+  {
+    "block_ids": [
+      "0e6a572bc3fe2bd6d173fe614bd1b763"
+    ],
+    "chunk_id": "441c695e990e7f49188068433e313e87",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
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+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 46,
+        "line_start": 40,
+        "symbol": "MetricsCollector.Report"
+      }
+    ],
+    "text": "func (m *MetricsCollector) Report() map[string]interface{} {\n\treturn map[string]interface{}{\n\t\t\"mean\":  0.0,\n\t\t\"count\": len(m.Scores),\n\t\t\"tags\":  m.Tags,\n\t}\n}",
+    "token_estimate": 53
+  },
+  {
+    "block_ids": [
+      "5d269745b2e5dbdcbef0c09ba54b0bd6"
+    ],
+    "chunk_id": "7a942d871c588ec69426290561f05179",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 247,
+        "line_start": 48,
+        "symbol": "BigCompute [part 1/5]"
+      }
+    ],
+    "text": "func BigCompute(data []int) int {\n\tv0 := 0\n\tif 0 < len(data) {\n\t\tv0 = data[0]\n\t}\n\tv1 := 0\n\tif 1 < len(data) {\n\t\tv1 = data[1]\n\t}\n\tv2 := 0\n\tif 2 < len(data) {\n\t\tv2 = data[2]\n\t}\n\tv3 := 0\n\tif 3 < len(data) {\n\t\tv3 = data[3]\n\t}\n\tv4 := 0\n\tif 4 < len(data) {\n\t\tv4 = data[4]\n\t}\n\tv5 := 0\n\tif 5 < len(data) {\n\t\tv5 = data[5]\n\t}\n\tv6 := 0\n\tif 6 < len(data) {\n\t\tv6 = data[6]\n\t}\n\tv7 := 0\n\tif 7 < len(data) {\n\t\tv7 = data[7]\n\t}\n\tv8 := 0\n\tif 8 < len(data) {\n\t\tv8 = data[8]\n\t}\n\tv9 := 0\n\tif 9 < len(data) {\n\t\tv9 = data[9]\n\t}\n\tv10 := 0\n\tif 10 < len(data) {\n\t\tv10 = data[10]\n\t}\n\tv11 := 0\n\tif 11 < len(data) {\n\t\tv11 = data[11]\n\t}\n\tv12 := 0\n\tif 12 < len(data) {\n\t\tv12 = data[12]\n\t}\n\tv13 := 0\n\tif 13 < len(data) {\n\t\tv13 = data[13]\n\t}\n\tv14 := 0\n\tif 14 < len(data) {\n\t\tv14 = data[14]\n\t}\n\tv15 := 0\n\tif 15 < len(data) {\n\t\tv15 = data[15]\n\t}\n\tv16 := 0\n\tif 16 < len(data) {\n\t\tv16 = data[16]\n\t}\n\tv17 := 0\n\tif 17 < len(data) {\n\t\tv17 = data[17]\n\t}\n\tv18 := 0\n\tif 18 < len(data) {\n\t\tv18 = data[18]\n\t}\n\tv19 := 0\n\tif 19 < len(data) {\n\t\tv19 = data[19]\n\t}\n\tv20 := 0\n\tif 20 < len(data) {\n\t\tv20 = data[20]\n\t}\n\tv21 := 0\n\tif 21 < len(data) {\n\t\tv21 = data[21]\n\t}\n\tv22 := 0\n\tif 22 < len(data) {\n\t\tv22 = data[22]\n\t}\n\tv23 := 0\n\tif 23 < len(data) {\n\t\tv23 = data[23]\n\t}\n\tv24 := 0\n\tif 24 < len(data) {\n\t\tv24 = data[24]\n\t}\n\tv25 := 0\n\tif 25 < len(data) {\n\t\tv25 = data[25]\n\t}\n\tv26 := 0\n\tif 26 < len(data) {\n\t\tv26 = data[26]\n\t}\n\tv27 := 0\n\tif 27 < len(data) {\n\t\tv27 = data[27]\n\t}\n\tv28 := 0\n\tif 28 < len(data) {\n\t\tv28 = data[28]\n\t}\n\tv29 := 0\n\tif 29 < len(data) {\n\t\tv29 = data[29]\n\t}\n\tv30 := 0\n\tif 30 < len(data) {\n\t\tv30 = data[30]\n\t}\n\tv31 := 0\n\tif 31 < len(data) {\n\t\tv31 = data[31]\n\t}\n\tv32 := 0\n\tif 32 < len(data) {\n\t\tv32 = data[32]\n\t}\n\tv33 := 0\n\tif 33 < len(data) {\n\t\tv33 = data[33]\n\t}\n\tv34 := 0\n\tif 34 < len(data) {\n\t\tv34 = data[34]\n\t}\n\tv35 := 0\n\tif 35 < len(data) {\n\t\tv35 = data[35]\n\t}\n\tv36 := 0\n\tif 36 < len(data) {\n\t\tv36 = data[36]\n\t}\n\tv37 := 0\n\tif 37 < len(data) {\n\t\tv37 = data[37]\n\t}\n\tv38 := 0\n\tif 38 < len(data) {\n\t\tv38 = data[38]\n\t}\n\tv39 := 0\n\tif 39 < len(data) {\n\t\tv39 = data[39]\n\t}\n\tv40 := 0\n\tif 40 < len(data) {\n\t\tv40 = data[40]\n\t}\n\tv41 := 0\n\tif 41 < len(data) {\n\t\tv41 = data[41]\n\t}\n\tv42 := 0\n\tif 42 < len(data) {\n\t\tv42 = data[42]\n\t}\n\tv43 := 0\n\tif 43 < len(data) {\n\t\tv43 = data[43]\n\t}\n\tv44 := 0\n\tif 44 < len(data) {\n\t\tv44 = data[44]\n\t}\n\tv45 := 0\n\tif 45 < len(data) {\n\t\tv45 = data[45]\n\t}\n\tv46 := 0\n\tif 46 < len(data) {\n\t\tv46 = data[46]\n\t}\n\tv47 := 0\n\tif 47 < len(data) {\n\t\tv47 = data[47]\n\t}\n\tv48 := 0\n\tif 48 < len(data) {\n\t\tv48 = data[48]\n\t}\n\tv49 := 0\n\tif 49 < len(data) {\n\t\tv49 = data[49]",
+    "token_estimate": 847
+  },
+  {
+    "block_ids": [
+      "5d269745b2e5dbdcbef0c09ba54b0bd6"
+    ],
+    "chunk_id": "3f44ba43c9415652e2705bb667776e76",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 447,
+        "line_start": 248,
+        "symbol": "BigCompute [part 2/5]"
+      }
+    ],
+    "text": "\t}\n\tv50 := 0\n\tif 50 < len(data) {\n\t\tv50 = data[50]\n\t}\n\tv51 := 0\n\tif 51 < len(data) {\n\t\tv51 = data[51]\n\t}\n\tv52 := 0\n\tif 52 < len(data) {\n\t\tv52 = data[52]\n\t}\n\tv53 := 0\n\tif 53 < len(data) {\n\t\tv53 = data[53]\n\t}\n\tv54 := 0\n\tif 54 < len(data) {\n\t\tv54 = data[54]\n\t}\n\tv55 := 0\n\tif 55 < len(data) {\n\t\tv55 = data[55]\n\t}\n\tv56 := 0\n\tif 56 < len(data) {\n\t\tv56 = data[56]\n\t}\n\tv57 := 0\n\tif 57 < len(data) {\n\t\tv57 = data[57]\n\t}\n\tv58 := 0\n\tif 58 < len(data) {\n\t\tv58 = data[58]\n\t}\n\tv59 := 0\n\tif 59 < len(data) {\n\t\tv59 = data[59]\n\t}\n\tv60 := 0\n\tif 60 < len(data) {\n\t\tv60 = data[60]\n\t}\n\tv61 := 0\n\tif 61 < len(data) {\n\t\tv61 = data[61]\n\t}\n\tv62 := 0\n\tif 62 < len(data) {\n\t\tv62 = data[62]\n\t}\n\tv63 := 0\n\tif 63 < len(data) {\n\t\tv63 = data[63]\n\t}\n\tv64 := 0\n\tif 64 < len(data) {\n\t\tv64 = data[64]\n\t}\n\tv65 := 0\n\tif 65 < len(data) {\n\t\tv65 = data[65]\n\t}\n\tv66 := 0\n\tif 66 < len(data) {\n\t\tv66 = data[66]\n\t}\n\tv67 := 0\n\tif 67 < len(data) {\n\t\tv67 = data[67]\n\t}\n\tv68 := 0\n\tif 68 < len(data) {\n\t\tv68 = data[68]\n\t}\n\tv69 := 0\n\tif 69 < len(data) {\n\t\tv69 = data[69]\n\t}\n\tv70 := 0\n\tif 70 < len(data) {\n\t\tv70 = data[70]\n\t}\n\tv71 := 0\n\tif 71 < len(data) {\n\t\tv71 = data[71]\n\t}\n\tv72 := 0\n\tif 72 < len(data) {\n\t\tv72 = data[72]\n\t}\n\tv73 := 0\n\tif 73 < len(data) {\n\t\tv73 = data[73]\n\t}\n\tv74 := 0\n\tif 74 < len(data) {\n\t\tv74 = data[74]\n\t}\n\tv75 := 0\n\tif 75 < len(data) {\n\t\tv75 = data[75]\n\t}\n\tv76 := 0\n\tif 76 < len(data) {\n\t\tv76 = data[76]\n\t}\n\tv77 := 0\n\tif 77 < len(data) {\n\t\tv77 = data[77]\n\t}\n\tv78 := 0\n\tif 78 < len(data) {\n\t\tv78 = data[78]\n\t}\n\tv79 := 0\n\tif 79 < len(data) {\n\t\tv79 = data[79]\n\t}\n\tv80 := 0\n\tif 80 < len(data) {\n\t\tv80 = data[80]\n\t}\n\tv81 := 0\n\tif 81 < len(data) {\n\t\tv81 = data[81]\n\t}\n\tv82 := 0\n\tif 82 < len(data) {\n\t\tv82 = data[82]\n\t}\n\tv83 := 0\n\tif 83 < len(data) {\n\t\tv83 = data[83]\n\t}\n\tv84 := 0\n\tif 84 < len(data) {\n\t\tv84 = data[84]\n\t}\n\tv85 := 0\n\tif 85 < len(data) {\n\t\tv85 = data[85]\n\t}\n\tv86 := 0\n\tif 86 < len(data) {\n\t\tv86 = data[86]\n\t}\n\tv87 := 0\n\tif 87 < len(data) {\n\t\tv87 = data[87]\n\t}\n\tv88 := 0\n\tif 88 < len(data) {\n\t\tv88 = data[88]\n\t}\n\tv89 := 0\n\tif 89 < len(data) {\n\t\tv89 = data[89]\n\t}\n\tv90 := 0\n\tif 90 < len(data) {\n\t\tv90 = data[90]\n\t}\n\tv91 := 0\n\tif 91 < len(data) {\n\t\tv91 = data[91]\n\t}\n\tv92 := 0\n\tif 92 < len(data) {\n\t\tv92 = data[92]\n\t}\n\tv93 := 0\n\tif 93 < len(data) {\n\t\tv93 = data[93]\n\t}\n\tv94 := 0\n\tif 94 < len(data) {\n\t\tv94 = data[94]\n\t}\n\tv95 := 0\n\tif 95 < len(data) {\n\t\tv95 = data[95]\n\t}\n\tv96 := 0\n\tif 96 < len(data) {\n\t\tv96 = data[96]\n\t}\n\tv97 := 0\n\tif 97 < len(data) {\n\t\tv97 = data[97]\n\t}\n\tv98 := 0\n\tif 98 < len(data) {\n\t\tv98 = data[98]\n\t}\n\tv99 := 0\n\tif 99 < len(data) {\n\t\tv99 = data[99]",
+    "token_estimate": 850
+  },
+  {
+    "block_ids": [
+      "5d269745b2e5dbdcbef0c09ba54b0bd6"
+    ],
+    "chunk_id": "e4763e10f059d97f40c2932761b56c3e",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 647,
+        "line_start": 448,
+        "symbol": "BigCompute [part 3/5]"
+      }
+    ],
+    "text": "\t}\n\tv100 := 0\n\tif 100 < len(data) {\n\t\tv100 = data[100]\n\t}\n\tv101 := 0\n\tif 101 < len(data) {\n\t\tv101 = data[101]\n\t}\n\tv102 := 0\n\tif 102 < len(data) {\n\t\tv102 = data[102]\n\t}\n\tv103 := 0\n\tif 103 < len(data) {\n\t\tv103 = data[103]\n\t}\n\tv104 := 0\n\tif 104 < len(data) {\n\t\tv104 = data[104]\n\t}\n\tv105 := 0\n\tif 105 < len(data) {\n\t\tv105 = data[105]\n\t}\n\tv106 := 0\n\tif 106 < len(data) {\n\t\tv106 = data[106]\n\t}\n\tv107 := 0\n\tif 107 < len(data) {\n\t\tv107 = data[107]\n\t}\n\tv108 := 0\n\tif 108 < len(data) {\n\t\tv108 = data[108]\n\t}\n\tv109 := 0\n\tif 109 < len(data) {\n\t\tv109 = data[109]\n\t}\n\tv110 := 0\n\tif 110 < len(data) {\n\t\tv110 = data[110]\n\t}\n\tv111 := 0\n\tif 111 < len(data) {\n\t\tv111 = data[111]\n\t}\n\tv112 := 0\n\tif 112 < len(data) {\n\t\tv112 = data[112]\n\t}\n\tv113 := 0\n\tif 113 < len(data) {\n\t\tv113 = data[113]\n\t}\n\tv114 := 0\n\tif 114 < len(data) {\n\t\tv114 = data[114]\n\t}\n\tv115 := 0\n\tif 115 < len(data) {\n\t\tv115 = data[115]\n\t}\n\tv116 := 0\n\tif 116 < len(data) {\n\t\tv116 = data[116]\n\t}\n\tv117 := 0\n\tif 117 < len(data) {\n\t\tv117 = data[117]\n\t}\n\tv118 := 0\n\tif 118 < len(data) {\n\t\tv118 = data[118]\n\t}\n\tv119 := 0\n\tif 119 < len(data) {\n\t\tv119 = data[119]\n\t}\n\tv120 := 0\n\tif 120 < len(data) {\n\t\tv120 = data[120]\n\t}\n\tv121 := 0\n\tif 121 < len(data) {\n\t\tv121 = data[121]\n\t}\n\tv122 := 0\n\tif 122 < len(data) {\n\t\tv122 = data[122]\n\t}\n\tv123 := 0\n\tif 123 < len(data) {\n\t\tv123 = data[123]\n\t}\n\tv124 := 0\n\tif 124 < len(data) {\n\t\tv124 = data[124]\n\t}\n\tv125 := 0\n\tif 125 < len(data) {\n\t\tv125 = data[125]\n\t}\n\tv126 := 0\n\tif 126 < len(data) {\n\t\tv126 = data[126]\n\t}\n\tv127 := 0\n\tif 127 < len(data) {\n\t\tv127 = data[127]\n\t}\n\tv128 := 0\n\tif 128 < len(data) {\n\t\tv128 = data[128]\n\t}\n\tv129 := 0\n\tif 129 < len(data) {\n\t\tv129 = data[129]\n\t}\n\tv130 := 0\n\tif 130 < len(data) {\n\t\tv130 = data[130]\n\t}\n\tv131 := 0\n\tif 131 < len(data) {\n\t\tv131 = data[131]\n\t}\n\tv132 := 0\n\tif 132 < len(data) {\n\t\tv132 = data[132]\n\t}\n\tv133 := 0\n\tif 133 < len(data) {\n\t\tv133 = data[133]\n\t}\n\tv134 := 0\n\tif 134 < len(data) {\n\t\tv134 = data[134]\n\t}\n\tv135 := 0\n\tif 135 < len(data) {\n\t\tv135 = data[135]\n\t}\n\tv136 := 0\n\tif 136 < len(data) {\n\t\tv136 = data[136]\n\t}\n\tv137 := 0\n\tif 137 < len(data) {\n\t\tv137 = data[137]\n\t}\n\tv138 := 0\n\tif 138 < len(data) {\n\t\tv138 = data[138]\n\t}\n\tv139 := 0\n\tif 139 < len(data) {\n\t\tv139 = data[139]\n\t}\n\tv140 := 0\n\tif 140 < len(data) {\n\t\tv140 = data[140]\n\t}\n\tv141 := 0\n\tif 141 < len(data) {\n\t\tv141 = data[141]\n\t}\n\tv142 := 0\n\tif 142 < len(data) {\n\t\tv142 = data[142]\n\t}\n\tv143 := 0\n\tif 143 < len(data) {\n\t\tv143 = data[143]\n\t}\n\tv144 := 0\n\tif 144 < len(data) {\n\t\tv144 = data[144]\n\t}\n\tv145 := 0\n\tif 145 < len(data) {\n\t\tv145 = data[145]\n\t}\n\tv146 := 0\n\tif 146 < len(data) {\n\t\tv146 = data[146]\n\t}\n\tv147 := 0\n\tif 147 < len(data) {\n\t\tv147 = data[147]\n\t}\n\tv148 := 0\n\tif 148 < len(data) {\n\t\tv148 = data[148]\n\t}\n\tv149 := 0\n\tif 149 < len(data) {\n\t\tv149 = data[149]",
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+  },
+  {
+    "block_ids": [
+      "5d269745b2e5dbdcbef0c09ba54b0bd6"
+    ],
+    "chunk_id": "24176c911d0bacf9a29fa7f8251f5036",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
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+        "line_start": 648,
+        "symbol": "BigCompute [part 4/5]"
+      }
+    ],
+    "text": "\t}\n\tv150 := 0\n\tif 150 < len(data) {\n\t\tv150 = data[150]\n\t}\n\tv151 := 0\n\tif 151 < len(data) {\n\t\tv151 = data[151]\n\t}\n\tv152 := 0\n\tif 152 < len(data) {\n\t\tv152 = data[152]\n\t}\n\tv153 := 0\n\tif 153 < len(data) {\n\t\tv153 = data[153]\n\t}\n\tv154 := 0\n\tif 154 < len(data) {\n\t\tv154 = data[154]\n\t}\n\tv155 := 0\n\tif 155 < len(data) {\n\t\tv155 = data[155]\n\t}\n\tv156 := 0\n\tif 156 < len(data) {\n\t\tv156 = data[156]\n\t}\n\tv157 := 0\n\tif 157 < len(data) {\n\t\tv157 = data[157]\n\t}\n\tv158 := 0\n\tif 158 < len(data) {\n\t\tv158 = data[158]\n\t}\n\tv159 := 0\n\tif 159 < len(data) {\n\t\tv159 = data[159]\n\t}\n\tv160 := 0\n\tif 160 < len(data) {\n\t\tv160 = data[160]\n\t}\n\tv161 := 0\n\tif 161 < len(data) {\n\t\tv161 = data[161]\n\t}\n\tv162 := 0\n\tif 162 < len(data) {\n\t\tv162 = data[162]\n\t}\n\tv163 := 0\n\tif 163 < len(data) {\n\t\tv163 = data[163]\n\t}\n\tv164 := 0\n\tif 164 < len(data) {\n\t\tv164 = data[164]\n\t}\n\tv165 := 0\n\tif 165 < len(data) {\n\t\tv165 = data[165]\n\t}\n\tv166 := 0\n\tif 166 < len(data) {\n\t\tv166 = data[166]\n\t}\n\tv167 := 0\n\tif 167 < len(data) {\n\t\tv167 = data[167]\n\t}\n\tv168 := 0\n\tif 168 < len(data) {\n\t\tv168 = data[168]\n\t}\n\tv169 := 0\n\tif 169 < len(data) {\n\t\tv169 = data[169]\n\t}\n\tv170 := 0\n\tif 170 < len(data) {\n\t\tv170 = data[170]\n\t}\n\tv171 := 0\n\tif 171 < len(data) {\n\t\tv171 = data[171]\n\t}\n\tv172 := 0\n\tif 172 < len(data) {\n\t\tv172 = data[172]\n\t}\n\tv173 := 0\n\tif 173 < len(data) {\n\t\tv173 = data[173]\n\t}\n\tv174 := 0\n\tif 174 < len(data) {\n\t\tv174 = data[174]\n\t}\n\tv175 := 0\n\tif 175 < len(data) {\n\t\tv175 = data[175]\n\t}\n\tv176 := 0\n\tif 176 < len(data) {\n\t\tv176 = data[176]\n\t}\n\tv177 := 0\n\tif 177 < len(data) {\n\t\tv177 = data[177]\n\t}\n\tv178 := 0\n\tif 178 < len(data) {\n\t\tv178 = data[178]\n\t}\n\tv179 := 0\n\tif 179 < len(data) {\n\t\tv179 = data[179]\n\t}\n\tv180 := 0\n\tif 180 < len(data) {\n\t\tv180 = data[180]\n\t}\n\tv181 := 0\n\tif 181 < len(data) {\n\t\tv181 = data[181]\n\t}\n\tv182 := 0\n\tif 182 < len(data) {\n\t\tv182 = data[182]\n\t}\n\tv183 := 0\n\tif 183 < len(data) {\n\t\tv183 = data[183]\n\t}\n\tv184 := 0\n\tif 184 < len(data) {\n\t\tv184 = data[184]\n\t}\n\tv185 := 0\n\tif 185 < len(data) {\n\t\tv185 = data[185]\n\t}\n\tv186 := 0\n\tif 186 < len(data) {\n\t\tv186 = data[186]\n\t}\n\tv187 := 0\n\tif 187 < len(data) {\n\t\tv187 = data[187]\n\t}\n\tv188 := 0\n\tif 188 < len(data) {\n\t\tv188 = data[188]\n\t}\n\tv189 := 0\n\tif 189 < len(data) {\n\t\tv189 = data[189]\n\t}\n\tv190 := 0\n\tif 190 < len(data) {\n\t\tv190 = data[190]\n\t}\n\tv191 := 0\n\tif 191 < len(data) {\n\t\tv191 = data[191]\n\t}\n\tv192 := 0\n\tif 192 < len(data) {\n\t\tv192 = data[192]\n\t}\n\tv193 := 0\n\tif 193 < len(data) {\n\t\tv193 = data[193]\n\t}\n\tv194 := 0\n\tif 194 < len(data) {\n\t\tv194 = data[194]\n\t}\n\tv195 := 0\n\tif 195 < len(data) {\n\t\tv195 = data[195]\n\t}\n\tv196 := 0\n\tif 196 < len(data) {\n\t\tv196 = data[196]\n\t}\n\tv197 := 0\n\tif 197 < len(data) {\n\t\tv197 = data[197]\n\t}\n\tv198 := 0\n\tif 198 < len(data) {\n\t\tv198 = data[198]\n\t}\n\tv199 := 0\n\tif 199 < len(data) {\n\t\tv199 = data[199]",
+    "token_estimate": 917
+  },
+  {
+    "block_ids": [
+      "5d269745b2e5dbdcbef0c09ba54b0bd6"
+    ],
+    "chunk_id": "438127626378632c03780d10603de32c",
+    "chunker_version": "code-go-ast-v1",
+    "doc_id": "83daba5fbb026e7a400d68a1c4bd36db",
+    "heading_path": [],
+    "policy_hash": "6cfe77abe2b0e5c3",
+    "source_spans": [
+      {
+        "kind": "code",
+        "lang": "go",
+        "line_end": 890,
+        "line_start": 848,
+        "symbol": "BigCompute [part 5/5]"
+      }
+    ],
+    "text": "\t}\n\tv200 := 0\n\tif 200 < len(data) {\n\t\tv200 = data[200]\n\t}\n\tv201 := 0\n\tif 201 < len(data) {\n\t\tv201 = data[201]\n\t}\n\tv202 := 0\n\tif 202 < len(data) {\n\t\tv202 = data[202]\n\t}\n\tv203 := 0\n\tif 203 < len(data) {\n\t\tv203 = data[203]\n\t}\n\tv204 := 0\n\tif 204 < len(data) {\n\t\tv204 = data[204]\n\t}\n\tv205 := 0\n\tif 205 < len(data) {\n\t\tv205 = data[205]\n\t}\n\tv206 := 0\n\tif 206 < len(data) {\n\t\tv206 = data[206]\n\t}\n\tv207 := 0\n\tif 207 < len(data) {\n\t\tv207 = data[207]\n\t}\n\tv208 := 0\n\tif 208 < len(data) {\n\t\tv208 = data[208]\n\t}\n\tv209 := 0\n\tif 209 < len(data) {\n\t\tv209 = data[209]\n\t}\n\treturn len(data)\n}",
+    "token_estimate": 191
+  }
+]

crates/kebab-chunk/tests/fixtures/sample.c

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAX_BUF 4096
+
+typedef enum {
+    OK = 0,
+    ERR_PARSE,
+    ERR_IO,
+} status_t;
+
+typedef struct {
+    int id;
+    char name[64];
+    status_t status;
+} record_t;
+
+static int counter = 0;
+
+int parse_record(const char *line, record_t *out) {
+    if (line == NULL || out == NULL) return ERR_PARSE;
+    return OK;
+}
+
+void print_record(const record_t *r) {
+    printf("[%d] %s (status=%d)\n", r->id, r->name, r->status);
+}
+
+int main(void) {
+    record_t r = { .id = 1, .name = "foo", .status = OK };
+    print_record(&r);
+    return 0;
+}

crates/kebab-chunk/tests/fixtures/sample.cpp

@@ -0,0 +1,40 @@
+#include <string>
+#include <vector>
+
+namespace kebab {
+namespace chunk {
+
+class MdHeadingV1Chunker {
+public:
+    MdHeadingV1Chunker() = default;
+    ~MdHeadingV1Chunker() = default;
+
+    std::string chunk_doc(const std::string& doc) {
+        return doc;
+    }
+
+    int operator()(int x) const {
+        return x * 2;
+    }
+
+private:
+    int counter_ = 0;
+};
+
+template <typename T>
+T identity(T value) {
+    return value;
+}
+
+}  // namespace chunk
+
+void global_helper() {
+    // free function in kebab namespace
+}
+
+}  // namespace kebab
+
+int main() {
+    kebab::chunk::MdHeadingV1Chunker c;
+    return 0;
+}

crates/kebab-chunk/tests/fixtures/sample.dockerfile

@@ -0,0 +1,5 @@
+FROM rust:1.94-slim AS builder
+WORKDIR /app
+COPY . .
+RUN cargo build --release
+CMD ["/app/target/release/kebab"]

crates/kebab-chunk/tests/fixtures/sample_cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "demo"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serde = "1"

crates/kebab-chunk/tests/fixtures/sample_go.mod

@@ -0,0 +1,5 @@
+module example.com/demo
+
+go 1.22
+
+require github.com/spf13/cobra v1.8.0

crates/kebab-chunk/tests/fixtures/sample_k8s.yaml

@@ -0,0 +1,34 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: api-server
+  namespace: prod
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: api-server
+  template:
+    metadata:
+      labels:
+        app: api-server
+    spec:
+      containers:
+      - name: api
+        image: example/api:1.2.3
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: api-server
+  namespace: prod
+spec:
+  selector:
+    app: api-server
+  ports:
+  - port: 80
+    targetPort: 8080
+---
+# Non-k8s document — apiVersion missing
+kind: ClusterIP
+foo: bar

crates/kebab-chunk/tests/fixtures/sample_long_paragraph.txt

@@ -0,0 +1,200 @@
+line 001
+line 002
+line 003
+line 004
+line 005
+line 006
+line 007
+line 008
+line 009
+line 010
+line 011
+line 012
+line 013
+line 014
+line 015
+line 016
+line 017
+line 018
+line 019
+line 020
+line 021
+line 022
+line 023
+line 024
+line 025
+line 026
+line 027
+line 028
+line 029
+line 030
+line 031
+line 032
+line 033
+line 034
+line 035
+line 036
+line 037
+line 038
+line 039
+line 040
+line 041
+line 042
+line 043
+line 044
+line 045
+line 046
+line 047
+line 048
+line 049
+line 050
+line 051
+line 052
+line 053
+line 054
+line 055
+line 056
+line 057
+line 058
+line 059
+line 060
+line 061
+line 062
+line 063
+line 064
+line 065
+line 066
+line 067
+line 068
+line 069
+line 070
+line 071
+line 072
+line 073
+line 074
+line 075
+line 076
+line 077
+line 078
+line 079
+line 080
+line 081
+line 082
+line 083
+line 084
+line 085
+line 086
+line 087
+line 088
+line 089
+line 090
+line 091
+line 092
+line 093
+line 094
+line 095
+line 096
+line 097
+line 098
+line 099
+line 100
+line 101
+line 102
+line 103
+line 104
+line 105
+line 106
+line 107
+line 108
+line 109
+line 110
+line 111
+line 112
+line 113
+line 114
+line 115
+line 116
+line 117
+line 118
+line 119
+line 120
+line 121
+line 122
+line 123
+line 124
+line 125
+line 126
+line 127
+line 128
+line 129
+line 130
+line 131
+line 132
+line 133
+line 134
+line 135
+line 136
+line 137
+line 138
+line 139
+line 140
+line 141
+line 142
+line 143
+line 144
+line 145
+line 146
+line 147
+line 148
+line 149
+line 150
+line 151
+line 152
+line 153
+line 154
+line 155
+line 156
+line 157
+line 158
+line 159
+line 160
+line 161
+line 162
+line 163
+line 164
+line 165
+line 166
+line 167
+line 168
+line 169
+line 170
+line 171
+line 172
+line 173
+line 174
+line 175
+line 176
+line 177
+line 178
+line 179
+line 180
+line 181
+line 182
+line 183
+line 184
+line 185
+line 186
+line 187
+line 188
+line 189
+line 190
+line 191
+line 192
+line 193
+line 194
+line 195
+line 196
+line 197
+line 198
+line 199
+line 200

crates/kebab-chunk/tests/fixtures/sample_package.json

@@ -0,0 +1,7 @@
+{
+  "name": "demo",
+  "version": "0.1.0",
+  "dependencies": {
+    "react": "^18.0.0"
+  }
+}

crates/kebab-chunk/tests/fixtures/sample_pom.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.demo</groupId>
+  <artifactId>demo</artifactId>
+  <version>0.1.0</version>
+</project>

crates/kebab-chunk/tests/fixtures/sample_shell.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# First paragraph: env setup
+export KEBAB_HOME="${KEBAB_HOME:-$HOME/.local/share/kebab}"
+mkdir -p "$KEBAB_HOME"
+cd "$KEBAB_HOME"
+
+# Second paragraph: ingest
+echo "ingesting workspace..."
+kebab ingest --config /etc/kebab/config.toml
+
+# Third paragraph: report
+echo "done"
+kebab schema --json | jq '.stats'

crates/kebab-chunk/tests/k8s_manifest_resource_v1.rs

@@ -0,0 +1,288 @@
+//! Behavioural tests for `K8sManifestResourceV1Chunker`.
+//!
+//! Documents are constructed manually (no kebab-parse-code dependency) by
+//! placing the raw YAML text into a single `Block::Code`, mirroring the
+//! pattern used in `code_rust_ast_snapshot.rs`.
+
+use std::path::PathBuf;
+
+use kebab_chunk::K8sManifestResourceV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock,
+    CommonBlock, Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel,
+    WorkspacePath, id_for_block, id_for_doc,
+};
+use time::OffsetDateTime;
+
+// ── helpers ──────────────────────────────────────────────────────────────────
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+/// Build a `CanonicalDocument` with a single `Block::Code` containing `yaml_text`.
+fn yaml_doc(yaml_text: &str) -> CanonicalDocument {
+    let wp = WorkspacePath("manifests/deploy.yaml".into());
+    let aid = AssetId("c".repeat(64));
+    let pv = ParserVersion("code-yaml-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    let line_count = yaml_text.lines().count() as u32;
+    let span = SourceSpan::Code {
+        line_start: 1,
+        line_end: line_count.max(1),
+        symbol: None,
+        lang: Some("yaml".into()),
+    };
+    let bid = id_for_block(&doc_id, "code", &[], 0, &span);
+    let block = Block::Code(CodeBlock {
+        common: CommonBlock {
+            block_id: bid,
+            heading_path: vec![],
+            source_span: span,
+        },
+        lang: Some("yaml".into()),
+        code: yaml_text.to_string(),
+    });
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: "deploy.yaml".into(),
+        lang: Lang("und".into()),
+        blocks: vec![block],
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some("yaml".into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("k8s-manifest-resource-v1".into()),
+    }
+}
+
+// ── tests ─────────────────────────────────────────────────────────────────────
+
+/// Three YAML documents: 2 valid k8s resources + 1 non-k8s (no apiVersion).
+/// The chunker must emit exactly 2 chunks with the correct symbols and lang.
+#[test]
+fn k8s_multi_doc_emits_one_chunk_per_resource() {
+    let fixture_path = fixtures_dir().join("sample_k8s.yaml");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = yaml_doc(&text);
+    let chunks = K8sManifestResourceV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        2,
+        "expected 2 k8s chunks, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let symbols: Vec<&str> = chunks
+        .iter()
+        .map(|c| {
+            match &c.source_spans[0] {
+                SourceSpan::Code { symbol, .. } => {
+                    symbol.as_deref().expect("symbol must be Some for k8s chunks")
+                }
+                other => panic!("expected Code span, got {other:?}"),
+            }
+        })
+        .collect();
+
+    assert_eq!(
+        symbols,
+        vec!["Deployment/prod/api-server", "Service/prod/api-server"],
+        "symbols mismatch: {symbols:?}"
+    );
+
+    // Verify lang = "yaml" on every chunk.
+    for chunk in &chunks {
+        match &chunk.source_spans[0] {
+            SourceSpan::Code { lang, .. } => {
+                assert_eq!(lang.as_deref(), Some("yaml"), "lang must be 'yaml'");
+            }
+            other => panic!("expected Code span, got {other:?}"),
+        }
+    }
+
+    // Verify chunker_version label.
+    for chunk in &chunks {
+        assert_eq!(chunk.chunker_version.0, "k8s-manifest-resource-v1");
+    }
+
+    // Every chunk from a multi-resource file must have a distinct chunk_id.
+    // Without the fix, all non-oversize resources get split_key=None which
+    // collapses to the same id_hash (= base_policy_hash) → UNIQUE constraint
+    // violation on the second resource.
+    let ids: std::collections::HashSet<_> = chunks.iter().map(|c| c.chunk_id.clone()).collect();
+    assert_eq!(
+        ids.len(),
+        chunks.len(),
+        "every k8s resource chunk must have a distinct chunk_id (multi-resource collision regression)"
+    );
+}
+
+/// A YAML document with an indentation error (tab in a space-indented context)
+/// must cause the chunker to return 0 chunks for the entire file.
+#[test]
+fn k8s_invalid_yaml_emits_zero_chunks() {
+    // serde_yaml 0.9 is lenient about duplicate keys (last wins), so use a
+    // genuine YAML structural error (unclosed flow sequence) to force a parse
+    // failure.
+    let actually_bad = "apiVersion: v1\nkind: Service\nfoo: [\nbar\n";
+
+    let doc = yaml_doc(actually_bad);
+    let chunks = K8sManifestResourceV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk should not error — return Ok(vec![]) for invalid yaml");
+
+    assert_eq!(
+        chunks.len(),
+        0,
+        "invalid YAML must yield 0 chunks, got {}: {chunks:#?}",
+        chunks.len()
+    );
+}
+
+/// A cluster-scoped resource (no `metadata.namespace`) must produce a symbol
+/// of the form `<Kind>/<name>` (two components, no namespace segment).
+#[test]
+fn k8s_cluster_scoped_resource_symbol() {
+    let yaml = "\
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: cluster-admin
+rules:
+- apiGroups: [\"*\"]
+  resources: [\"*\"]
+  verbs: [\"*\"]
+";
+
+    let doc = yaml_doc(yaml);
+    let chunks = K8sManifestResourceV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk for cluster-scoped resource, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    match &chunks[0].source_spans[0] {
+        SourceSpan::Code { symbol, lang, .. } => {
+            assert_eq!(
+                symbol.as_deref(),
+                Some("ClusterRole/cluster-admin"),
+                "cluster-scoped symbol must be <Kind>/<name>"
+            );
+            assert_eq!(lang.as_deref(), Some("yaml"));
+        }
+        other => panic!("expected Code span, got {other:?}"),
+    }
+}
+
+/// 200+ line resource exercises `tier2_shared::push_chunks_with_oversize`'s
+/// line-window split branch. All chunks must share the same symbol
+/// (`<Kind>/<ns>/<name>`); their line ranges must form a contiguous
+/// partition; chunk_ids must all differ (the `#L{k}` suffix on `id_for_chunk`
+/// ensures uniqueness across windows). Spec p10-2 risks section explicitly
+/// flags "거대 ConfigMap" — this test covers that path.
+#[test]
+fn k8s_oversize_splits_into_line_windows_sharing_symbol() {
+    // ConfigMap with 250 data keys → ~256 total lines, > AST_CHUNK_MAX_LINES (200).
+    let mut yaml = String::from(
+        "apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: big\n  namespace: prod\ndata:\n",
+    );
+    for i in 0..250 {
+        yaml.push_str(&format!("  key{i}: value{i}\n"));
+    }
+
+    let doc = yaml_doc(&yaml);
+    let chunks = K8sManifestResourceV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert!(
+        chunks.len() >= 2,
+        "expected ≥2 chunks for oversize resource, got {}",
+        chunks.len()
+    );
+
+    // Every chunk must share the same symbol + lang.
+    let expected_symbol = "ConfigMap/prod/big";
+    for (i, c) in chunks.iter().enumerate() {
+        match &c.source_spans[0] {
+            SourceSpan::Code { symbol, lang, .. } => {
+                assert_eq!(
+                    symbol.as_deref(),
+                    Some(expected_symbol),
+                    "chunk[{i}] symbol must equal `{expected_symbol}`"
+                );
+                assert_eq!(lang.as_deref(), Some("yaml"));
+            }
+            other => panic!("chunk[{i}]: expected Code span, got {other:?}"),
+        }
+    }
+
+    // chunk_ids must all be distinct (oversize fallback's #L{k} suffix).
+    let ids: std::collections::HashSet<_> = chunks.iter().map(|c| c.chunk_id.clone()).collect();
+    assert_eq!(
+        ids.len(),
+        chunks.len(),
+        "oversize chunks must have distinct chunk_ids (the #L{{k}} suffix should disambiguate)"
+    );
+
+    // Line ranges must form a contiguous partition: chunk[i].line_end + 1 == chunk[i+1].line_start.
+    let ranges: Vec<(u32, u32)> = chunks
+        .iter()
+        .map(|c| match &c.source_spans[0] {
+            SourceSpan::Code { line_start, line_end, .. } => (*line_start, *line_end),
+            other => panic!("expected Code span, got {other:?}"),
+        })
+        .collect();
+    for w in ranges.windows(2) {
+        let (_, prev_end) = w[0];
+        let (next_start, _) = w[1];
+        assert_eq!(
+            prev_end + 1,
+            next_start,
+            "line ranges must be contiguous: {} → {} (got gap or overlap)",
+            prev_end,
+            next_start
+        );
+    }
+}

crates/kebab-chunk/tests/manifest_file_v1.rs

@@ -0,0 +1,267 @@
+//! Behavioural tests for `ManifestFileV1Chunker`.
+//!
+//! Documents are constructed manually (no kebab-parse-code dependency) by
+//! placing the raw manifest text into a single `Block::Code`, mirroring the
+//! pattern used in `dockerfile_file_v1.rs`.
+
+use std::path::PathBuf;
+
+use kebab_chunk::ManifestFileV1Chunker;
+use kebab_core::{
+    AssetId, Block, CanonicalDocument, ChunkPolicy, Chunker, ChunkerVersion, CodeBlock,
+    CommonBlock, Lang, Metadata, ParserVersion, Provenance, SourceSpan, SourceType, TrustLevel,
+    WorkspacePath, id_for_block, id_for_doc,
+};
+use time::OffsetDateTime;
+
+// ── helpers ──────────────────────────────────────────────────────────────────
+
+fn fixtures_dir() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("tests")
+        .join("fixtures")
+}
+
+/// Build a `CanonicalDocument` with a single `Block::Code` containing manifest text.
+fn manifest_doc(lang: &str, manifest_text: &str) -> CanonicalDocument {
+    let wp = WorkspacePath(format!("build/{}", manifest_filename(lang)));
+    let aid = AssetId("m".repeat(64));
+    let pv = ParserVersion("code-manifest-v1".into());
+    let doc_id = id_for_doc(&wp, &aid, &pv);
+
+    let line_count = manifest_text.lines().count() as u32;
+    let span = SourceSpan::Code {
+        line_start: 1,
+        line_end: line_count.max(1),
+        symbol: None,
+        lang: Some(lang.into()),
+    };
+    let bid = id_for_block(&doc_id, "code", &[], 0, &span);
+    let block = Block::Code(CodeBlock {
+        common: CommonBlock {
+            block_id: bid,
+            heading_path: vec![],
+            source_span: span,
+        },
+        lang: Some(lang.into()),
+        code: manifest_text.to_string(),
+    });
+
+    CanonicalDocument {
+        doc_id,
+        source_asset_id: aid,
+        workspace_path: wp,
+        title: format!("Manifest ({})", lang),
+        lang: Lang("und".into()),
+        blocks: vec![block],
+        metadata: Metadata {
+            aliases: vec![],
+            tags: vec![],
+            created_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            updated_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Default::default(),
+            repo: Some("kebab".into()),
+            git_branch: Some("main".into()),
+            git_commit: Some("0".repeat(40)),
+            code_lang: Some(lang.into()),
+        },
+        provenance: Provenance { events: vec![] },
+        parser_version: pv,
+        schema_version: 1,
+        doc_version: 1,
+        last_chunker_version: None,
+        last_embedding_version: None,
+    }
+}
+
+fn manifest_filename(lang: &str) -> &'static str {
+    match lang {
+        "toml" => "Cargo.toml",
+        "json" => "package.json",
+        "xml" => "pom.xml",
+        "go-mod" => "go.mod",
+        _ => "manifest",
+    }
+}
+
+fn policy() -> ChunkPolicy {
+    ChunkPolicy {
+        target_tokens: 500,
+        overlap_tokens: 80,
+        respect_markdown_headings: false,
+        chunker_version: ChunkerVersion("manifest-file-v1".into()),
+    }
+}
+
+// ── tests ─────────────────────────────────────────────────────────────────────
+
+/// A Cargo.toml fixture must emit exactly 1 chunk with the correct symbol,
+/// lang, and line range.
+#[test]
+fn cargo_toml_single_chunk_with_toml_lang() {
+    let fixture_path = fixtures_dir().join("sample_cargo.toml");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = manifest_doc("toml", &text);
+    let chunks = ManifestFileV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let span = chunks[0].source_spans.first().expect("at least one span");
+    match span {
+        SourceSpan::Code {
+            line_start,
+            line_end: _,
+            symbol,
+            lang,
+        } => {
+            assert_eq!(*line_start, 1, "line_start must be 1");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<manifest>"),
+                "symbol must be '<manifest>'"
+            );
+            assert_eq!(lang.as_deref(), Some("toml"), "lang must be 'toml'");
+        }
+        other => panic!("expected SourceSpan::Code, got {other:?}"),
+    }
+
+    assert_eq!(chunks[0].chunker_version.0, "manifest-file-v1");
+}
+
+/// A package.json fixture must emit exactly 1 chunk with the correct symbol,
+/// lang, and line range.
+#[test]
+fn package_json_single_chunk_with_json_lang() {
+    let fixture_path = fixtures_dir().join("sample_package.json");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = manifest_doc("json", &text);
+    let chunks = ManifestFileV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let span = chunks[0].source_spans.first().expect("at least one span");
+    match span {
+        SourceSpan::Code {
+            line_start,
+            line_end: _,
+            symbol,
+            lang,
+        } => {
+            assert_eq!(*line_start, 1, "line_start must be 1");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<manifest>"),
+                "symbol must be '<manifest>'"
+            );
+            assert_eq!(lang.as_deref(), Some("json"), "lang must be 'json'");
+        }
+        other => panic!("expected SourceSpan::Code, got {other:?}"),
+    }
+
+    assert_eq!(chunks[0].chunker_version.0, "manifest-file-v1");
+}
+
+/// A pom.xml fixture must emit exactly 1 chunk with the correct symbol,
+/// lang, and line range.
+#[test]
+fn pom_xml_single_chunk_with_xml_lang() {
+    let fixture_path = fixtures_dir().join("sample_pom.xml");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = manifest_doc("xml", &text);
+    let chunks = ManifestFileV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let span = chunks[0].source_spans.first().expect("at least one span");
+    match span {
+        SourceSpan::Code {
+            line_start,
+            line_end: _,
+            symbol,
+            lang,
+        } => {
+            assert_eq!(*line_start, 1, "line_start must be 1");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<manifest>"),
+                "symbol must be '<manifest>'"
+            );
+            assert_eq!(lang.as_deref(), Some("xml"), "lang must be 'xml'");
+        }
+        other => panic!("expected SourceSpan::Code, got {other:?}"),
+    }
+
+    assert_eq!(chunks[0].chunker_version.0, "manifest-file-v1");
+}
+
+/// A go.mod fixture must emit exactly 1 chunk with the correct symbol,
+/// lang, and line range.
+#[test]
+fn go_mod_single_chunk_with_go_mod_lang() {
+    let fixture_path = fixtures_dir().join("sample_go.mod");
+    let text = std::fs::read_to_string(&fixture_path)
+        .unwrap_or_else(|e| panic!("cannot read fixture {}: {e}", fixture_path.display()));
+
+    let doc = manifest_doc("go-mod", &text);
+    let chunks = ManifestFileV1Chunker
+        .chunk(&doc, &policy())
+        .expect("chunk");
+
+    assert_eq!(
+        chunks.len(),
+        1,
+        "expected 1 chunk, got {}: {chunks:#?}",
+        chunks.len()
+    );
+
+    let span = chunks[0].source_spans.first().expect("at least one span");
+    match span {
+        SourceSpan::Code {
+            line_start,
+            line_end: _,
+            symbol,
+            lang,
+        } => {
+            assert_eq!(*line_start, 1, "line_start must be 1");
+            assert_eq!(
+                symbol.as_deref(),
+                Some("<manifest>"),
+                "symbol must be '<manifest>'"
+            );
+            assert_eq!(lang.as_deref(), Some("go-mod"), "lang must be 'go-mod'");
+        }
+        other => panic!("expected SourceSpan::Code, got {other:?}"),
+    }
+
+    assert_eq!(chunks[0].chunker_version.0, "manifest-file-v1");
+}

crates/kebab-cli/src/main.rs

@@ -275,6 +275,14 @@ enum Cmd {
         #[arg(long, group = "reset_scope")]
         config_only: bool,
 
+        /// Purge stored docs that are outside the current walker scope
+        /// (config narrowing / removed sub-directory). No filesystem paths
+        /// are removed — this is purely a store-level reconciliation.
+        /// Filesystem existence is NOT checked; anything the current walker
+        /// would not visit is considered an orphan and removed from the store.
+        #[arg(long, group = "reset_scope")]
+        orphans_only: bool,
+
         /// Skip the interactive confirm. Required in non-interactive
         /// contexts (CI, pipes).
         #[arg(long)]
@@ -595,14 +603,20 @@ fn run(cli: &Cli) -> anyhow::Result<()> {
                 println!("{}", serde_json::to_string(&wire::wire_ingest(&report))?);
             } else {
                 let skipped_breakdown = kebab_app::render_skipped_breakdown(&report.skipped_by_extension);
+                let purged_suffix = if report.purged_deleted_files > 0 {
+                    format!("  purged {}", report.purged_deleted_files)
+                } else {
+                    String::new()
+                };
                 println!(
-                    "scanned {}  new {}  updated {}  skipped {}{}  errors {}  ({} ms)",
+                    "scanned {}  new {}  updated {}  skipped {}{}  errors {}{}  ({} ms)",
                     report.scanned,
                     report.new,
                     report.updated,
                     report.skipped,
                     skipped_breakdown,
                     report.errors,
+                    purged_suffix,
                     report.duration_ms
                 );
             }
@@ -1088,6 +1102,7 @@ fn run(cli: &Cli) -> anyhow::Result<()> {
             data_only: _,
             vector_only,
             config_only,
+            orphans_only,
             yes,
         } => {
             use kebab_app::ResetScope;
@@ -1101,11 +1116,50 @@ fn run(cli: &Cli) -> anyhow::Result<()> {
                 ResetScope::VectorOnly
             } else if *config_only {
                 ResetScope::ConfigOnly
+            } else if *orphans_only {
+                ResetScope::OrphansOnly
             } else {
                 ResetScope::DataOnly
             };
 
             let cfg = kebab_config::Config::load(cli.config.as_deref())?;
+
+            if matches!(scope, ResetScope::OrphansOnly) {
+                // OrphansOnly: confirm UI shows orphan count + sample paths
+                // rather than on-disk directory sizes.
+                let orphan_paths = kebab_app::enumerate_orphans(&cfg)?;
+
+                if !*yes {
+                    use std::io::IsTerminal;
+                    if !std::io::stdin().is_terminal() {
+                        anyhow::bail!(
+                            "reset --orphans-only is destructive and stdin is non-interactive — pass --yes to proceed"
+                        );
+                    }
+                    if !confirm_orphans_only(&orphan_paths)? {
+                        if !cli.quiet {
+                            eprintln!("aborted.");
+                        }
+                        return Ok(());
+                    }
+                }
+
+                let report = kebab_app::reset::execute(scope, &cfg)?;
+                if cli.json {
+                    println!("{}", serde_json::to_string(&wire::wire_reset(&report))?);
+                } else {
+                    if report.orphans_purged > 0 {
+                        println!("orphans purged: {}", report.orphans_purged);
+                        for p in &report.purged_paths {
+                            println!("  - {}", p.0);
+                        }
+                    } else {
+                        println!("no orphaned docs found — store is already in sync with walker scope");
+                    }
+                }
+                return Ok(());
+            }
+
             let paths = kebab_app::reset::enumerate_paths(scope, &cfg);
             let bytes = kebab_app::reset::estimate_size_bytes(&paths);
 
@@ -1444,6 +1498,46 @@ fn confirm_destructive(
     Ok(matches!(s.as_str(), "y" | "yes"))
 }
 
+/// Confirm prompt for `--orphans-only`: shows the orphan count + a
+/// sample of up to 5 paths so the user knows what will be purged before
+/// committing. No filesystem paths are removed — only store records.
+fn confirm_orphans_only(
+    orphan_paths: &[kebab_core::WorkspacePath],
+) -> anyhow::Result<bool> {
+    use std::io::Write;
+    let n = orphan_paths.len();
+    let mut out = std::io::stderr().lock();
+
+    if n == 0 {
+        writeln!(out, "no orphaned docs found — nothing to purge.")?;
+        out.flush()?;
+        // Nothing to do; treat as confirmed so the caller can emit the
+        // "no orphans" report without prompting.
+        return Ok(true);
+    }
+
+    let sample: Vec<&str> = orphan_paths
+        .iter()
+        .take(5)
+        .map(|p| p.0.as_str())
+        .collect();
+    let sample_str = sample.join(", ");
+    let ellipsis = if n > 5 { ", …" } else { "" };
+
+    writeln!(
+        out,
+        "Purge {n} stored doc(s) outside the current walker scope? (no filesystem paths removed)"
+    )?;
+    writeln!(out, "  sample: {sample_str}{ellipsis}")?;
+    write!(out, "[y/N] ")?;
+    out.flush()?;
+
+    let mut line = String::new();
+    std::io::stdin().read_line(&mut line)?;
+    let s = line.trim().to_ascii_lowercase();
+    Ok(matches!(s.as_str(), "y" | "yes"))
+}
+
 /// p9-fb-35: human-friendly plain output for `kebab fetch`.
 fn render_fetch_plain(r: &kebab_core::FetchResult) {
     println!("# {} ({})", r.doc_path.0, format_kind(r.kind));

crates/kebab-cli/src/wire.rs

@@ -260,6 +260,7 @@ mod tests {
             skipped_generated: 0,
             skipped_size_exceeded: 0,
             skip_examples: SkipExamples::default(),
+            purged_deleted_files: 0,
             items: None,
         };
         let v = wire_ingest(&r);
@@ -364,6 +365,8 @@ mod tests {
             scope: kebab_app::ResetScope::DataOnly,
             removed_paths: vec![std::path::PathBuf::from("/tmp/x")],
             embedding_rows_truncated: 0,
+            orphans_purged: 0,
+            purged_paths: vec![],
         };
         let v = wire_reset(&r);
         assert_eq!(schema_of(&v), Some("reset_report.v1"));

crates/kebab-core/src/ingest.rs

@@ -47,6 +47,12 @@ pub struct IngestReport {
     /// p10-1A-1: sample file paths per skip category (≤ 5 each).
     #[serde(default)]
     pub skip_examples: SkipExamples,
+    /// Dogfood: docs whose on-disk file was deleted since the last ingest
+    /// and were therefore removed from the store. Additive field — older
+    /// wire consumers that pre-date this field read it as 0 via
+    /// `#[serde(default)]`.
+    #[serde(default)]
+    pub purged_deleted_files: u32,
     /// `None` ↔ wire `items: null` (`--summary-only`).
     pub items: Option<Vec<IngestItem>>,
 }
@@ -136,6 +142,7 @@ mod tests {
                 builtin_blacklist: vec!["node_modules/x.js".into()],
                 gitignore: vec![],
             },
+            purged_deleted_files: 0,
             items: None,
         };
         let v = serde_json::to_value(&r).unwrap();

crates/kebab-core/src/traits.rs

@@ -8,7 +8,7 @@ use serde_json::Value;
 use crate::asset::{RawAsset, WorkspacePath};
 use crate::chunk::Chunk;
 use crate::document::{Block, CanonicalDocument};
-use crate::ids::{ChunkId, DocumentId};
+use crate::ids::{AssetId, ChunkId, DocumentId};
 use crate::jobs::{JobFilter, JobId, JobKind, JobRow, JobStatus};
 use crate::media::MediaType;
 use crate::search::{DocFilter, DocSummary, SearchFilters, SearchHit, SearchQuery};
@@ -161,14 +161,51 @@ pub trait DocumentStore {
     fn get_document(&self, id: &DocumentId) -> anyhow::Result<Option<CanonicalDocument>>;
     fn get_chunk(&self, id: &ChunkId) -> anyhow::Result<Option<Chunk>>;
     fn list_documents(&self, filter: &DocFilter) -> anyhow::Result<Vec<DocSummary>>;
+    /// Look up an asset row by its `asset_id` (PRIMARY KEY = blake3
+    /// content hash). Twin-file safe: asset_id is PK so there is
+    /// exactly one row per unique content hash, regardless of how many
+    /// `documents` rows share it. Use this instead of
+    /// `get_asset_by_workspace_path` when you already have a
+    /// `CanonicalDocument` (which carries `source_asset_id`).
+    fn get_asset(&self, id: &AssetId) -> anyhow::Result<Option<RawAsset>>;
+
     /// p9-fb-23: look up an asset row by its workspace path. Used by
     /// the incremental-ingest skip path to compare the freshly
     /// computed blake3 checksum against what's already in SQLite. The
     /// schema enforces a unique workspace_path per asset.
+    ///
+    /// NOTE: for twin files (identical content at different paths),
+    /// `assets.workspace_path` is "last-registered path" — it
+    /// flip-flops on every ingest. Prefer `get_asset` (by asset_id)
+    /// when you have a `CanonicalDocument.source_asset_id`.
     fn get_asset_by_workspace_path(
         &self,
         path: &WorkspacePath,
     ) -> anyhow::Result<Option<RawAsset>>;
+
+    /// Look up a document row by its workspace path. Used by the
+    /// document-centric skip path in `try_skip_unchanged` to avoid the
+    /// twin-file flip-flop that the asset-side lookup suffers from
+    /// (multiple files with identical content share one `assets` row
+    /// whose `workspace_path` is overwritten on every UPSERT, so
+    /// `get_asset_by_workspace_path` returns the wrong twin's path).
+    ///
+    /// `documents.workspace_path` is UNIQUE (V001), so each twin has
+    /// its own stable document row regardless of the asset de-dup.
+    fn get_document_by_workspace_path(
+        &self,
+        path: &WorkspacePath,
+    ) -> anyhow::Result<Option<CanonicalDocument>>;
+
+    /// Return every `workspace_path` stored in the `documents` table.
+    ///
+    /// Used by the post-walker sweep in `kebab-app::ingest` to detect
+    /// documents whose source file has been deleted from the filesystem.
+    /// The set difference `(stored - scanned)` yields orphan candidates;
+    /// each candidate is then existence-checked on disk so that
+    /// out-of-scope files (config narrowing) are NOT purged — only truly
+    /// absent files trigger the purge.
+    fn all_workspace_paths(&self) -> anyhow::Result<Vec<WorkspacePath>>;
 }
 
 pub trait VectorStore {

crates/kebab-parse-code/Cargo.toml

@@ -19,6 +19,11 @@ tree-sitter-rust = { workspace = true }
 tree-sitter-python     = { workspace = true }
 tree-sitter-typescript = { workspace = true }
 tree-sitter-javascript = { workspace = true }
+tree-sitter-go         = { workspace = true }
+tree-sitter-java       = { workspace = true }
+tree-sitter-kotlin-ng  = { workspace = true }
+tree-sitter-c          = { workspace = true }
+tree-sitter-cpp        = { workspace = true }
 
 [dev-dependencies]
 tempfile = { workspace = true }

crates/kebab-parse-code/src/c.rs

@@ -0,0 +1,592 @@
+//! `kebab-parse-code::c` — tree-sitter C AST extractor (P10-1D Task B).
+//!
+//! Implements [`kebab_core::Extractor`] for [`MediaType::Code("c")`].
+//! Walks the tree-sitter parse tree and emits one [`Block::Code`] per
+//! top-level AST semantic unit:
+//!
+//! - `function_definition` → 1 unit, symbol = function name (extracted
+//!   from the declarator's innermost `identifier`, handles pointer-returning
+//!   functions where the declarator is wrapped in `pointer_declarator`).
+//! - `struct_specifier` (named) → 1 unit, symbol = struct name.
+//! - `enum_specifier` (named) → 1 unit, symbol = enum name.
+//! - `union_specifier` (named) → 1 unit, symbol = union name.
+//!
+//! Everything else (`declaration`, `preproc_*`, `type_definition`,
+//! `linkage_specification`, etc.) collapses into a single `<top-level>`
+//! glue chunk. If the file produces zero units **and** zero glue, the
+//! `<module>` post-pass emits one unit covering the whole file (1A-2
+//! pattern).
+//!
+//! C symbol = function name only — no namespace, no class nesting
+//! (design §3.4 C row). Per design §3.4 / §9.1 / §9 versioning.
+
+use anyhow::Result;
+use kebab_core::{
+    Block, CanonicalDocument, CodeBlock, CommonBlock, Extractor, Lang, MediaType, Metadata,
+    ParserVersion, Provenance, ProvenanceEvent, ProvenanceKind, SourceSpan, SourceType, TrustLevel,
+    id_for_block, id_for_doc,
+};
+use serde_json::Map;
+use time::OffsetDateTime;
+
+use crate::scaffold::{filename_from_workspace_path, strip_extension};
+
+pub const PARSER_VERSION: &str = "code-c-v1";
+
+/// C AST extractor. Per-unit blocks via tree-sitter-c 0.24.2
+/// (`LANGUAGE: LanguageFn`) parsed by tree-sitter 0.26.
+pub struct CAstExtractor;
+
+impl CAstExtractor {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Default for CAstExtractor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Extractor for CAstExtractor {
+    fn supports(&self, m: &MediaType) -> bool {
+        matches!(m, MediaType::Code(l) if l == "c")
+    }
+
+    fn parser_version(&self) -> ParserVersion {
+        ParserVersion(PARSER_VERSION.to_string())
+    }
+
+    fn extract(
+        &self,
+        ctx: &kebab_core::ExtractContext<'_>,
+        bytes: &[u8],
+    ) -> Result<CanonicalDocument> {
+        let asset = ctx.asset;
+        if !self.supports(&asset.media_type) {
+            anyhow::bail!(
+                "kebab-parse-code: unsupported media_type for CAstExtractor: {:?}",
+                asset.media_type
+            );
+        }
+
+        let parser_version = self.parser_version();
+        let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, &parser_version);
+
+        let source = String::from_utf8(bytes.to_vec())
+            .map_err(|e| anyhow::anyhow!("kebab-parse-code: C source is not valid UTF-8: {e}"))?;
+
+        let blocks = build_blocks(&source, &doc_id)?;
+        let unit_count = blocks.len() as u32;
+
+        let now = OffsetDateTime::now_utc();
+        let mut events: Vec<ProvenanceEvent> = Vec::with_capacity(2);
+        events.push(ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        });
+        events.push(ProvenanceEvent {
+            at: now,
+            agent: "kb-parse-code".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; unit_count={}",
+                parser_version.0, unit_count
+            )),
+        });
+
+        let title = {
+            let fname = filename_from_workspace_path(&asset.workspace_path.0);
+            strip_extension(&fname)
+        };
+
+        let abs_path = match &asset.source_uri {
+            kebab_core::SourceUri::File(p) => {
+                if p.is_absolute() {
+                    p.clone()
+                } else {
+                    ctx.workspace_root.join(p)
+                }
+            }
+            kebab_core::SourceUri::Kb(_) => ctx.workspace_root.to_path_buf(),
+        };
+        let (repo, git_branch, git_commit) = match crate::repo::detect_repo(&abs_path) {
+            Some(r) => (Some(r.name), r.branch, r.commit),
+            None => (None, None, None),
+        };
+
+        let metadata = Metadata {
+            aliases: Vec::new(),
+            tags: Vec::new(),
+            created_at: asset.discovered_at,
+            updated_at: asset.discovered_at,
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Map::new(),
+            repo,
+            git_branch,
+            git_commit,
+            code_lang: Some("c".to_string()),
+        };
+
+        tracing::debug!(
+            target: "kebab-parse-code",
+            "extracted C doc_id={} workspace_path={} units={}",
+            doc_id.0,
+            asset.workspace_path.0,
+            unit_count
+        );
+
+        Ok(CanonicalDocument {
+            doc_id,
+            source_asset_id: asset.asset_id.clone(),
+            workspace_path: asset.workspace_path.clone(),
+            title,
+            lang: Lang("und".to_string()),
+            blocks,
+            metadata,
+            provenance: Provenance { events },
+            parser_version,
+            schema_version: 1,
+            doc_version: 1,
+            last_chunker_version: None,
+            last_embedding_version: None,
+        })
+    }
+}
+
+/// Walk down the declarator chain of a `function_definition` to find
+/// the innermost `identifier` — the function name.
+///
+/// The tree for `int *foo(int x) { ... }` looks like:
+/// ```text
+/// function_definition
+///   type: primitive_type  "int"
+///   declarator: pointer_declarator
+///     declarator: function_declarator
+///       declarator: identifier  "foo"
+///       parameters: parameter_list
+///   body: compound_statement
+/// ```
+/// We walk `declarator` fields recursively until we reach an `identifier`
+/// or run out of nodes. Returns `None` if no identifier is found
+/// (malformed / unsupported declarator shape).
+fn extract_fn_name<'a>(decl_node: tree_sitter::Node, src: &'a str) -> Option<&'a str> {
+    let mut cur = decl_node;
+    loop {
+        match cur.kind() {
+            "identifier" => return Some(&src[cur.start_byte()..cur.end_byte()]),
+            // pointer_declarator, function_declarator, array_declarator,
+            // attributed_declarator, parenthesized_declarator —
+            // all carry a `declarator` field pointing deeper.
+            _ => {
+                if let Some(inner) = cur.child_by_field_name("declarator") {
+                    cur = inner;
+                } else {
+                    // No further `declarator` field; give up.
+                    return None;
+                }
+            }
+        }
+    }
+}
+
+fn build_blocks(
+    source: &str,
+    doc_id: &kebab_core::DocumentId,
+) -> anyhow::Result<Vec<kebab_core::Block>> {
+    let mut parser = tree_sitter::Parser::new();
+    parser
+        .set_language(&tree_sitter_c::LANGUAGE.into())
+        .map_err(|e| anyhow::anyhow!("set tree-sitter-c language: {e}"))?;
+    let tree = parser
+        .parse(source.as_bytes(), None)
+        .ok_or_else(|| anyhow::anyhow!("tree-sitter failed to parse C source"))?;
+    let lines: Vec<&str> = source.split('\n').collect();
+
+    let root = tree.root_node();
+
+    // units: (symbol, line_start, line_end, is_real_semantic_unit).
+    // Glue is accumulated as (start, end) pairs and flushed into one
+    // "<top-level>" block (or "<module>" if no real unit exists).
+    let mut units: Vec<(String, u32, u32, bool)> = Vec::new();
+    let mut glue: Vec<(u32, u32)> = Vec::new();
+
+    /// Walk preceding `comment` siblings to extend the unit's line range
+    /// upward, folding doc / line comments into the unit (1B pattern).
+    fn unit_start(n: &tree_sitter::Node) -> u32 {
+        let mut start = n.start_position().row as u32 + 1;
+        let mut prev = n.prev_sibling();
+        while let Some(p) = prev {
+            if p.kind() == "comment" {
+                start = p.start_position().row as u32 + 1;
+                prev = p.prev_sibling();
+            } else {
+                break;
+            }
+        }
+        start
+    }
+
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+
+        match child.kind() {
+            "function_definition" => {
+                if let Some(decl) = child.child_by_field_name("declarator") {
+                    if let Some(name) = extract_fn_name(decl, source) {
+                        flush_glue(&mut glue, &mut units);
+                        units.push((name.to_string(), s, e, true));
+                    } else {
+                        // Could not extract name — treat as glue.
+                        glue.push((s, e));
+                    }
+                } else {
+                    glue.push((s, e));
+                }
+            }
+            "struct_specifier" | "enum_specifier" | "union_specifier" => {
+                if let Some(name_node) = child.child_by_field_name("name") {
+                    let name = &source[name_node.start_byte()..name_node.end_byte()];
+                    flush_glue(&mut glue, &mut units);
+                    units.push((name.to_string(), s, e, true));
+                } else {
+                    // Anonymous struct/enum/union — glue.
+                    glue.push((s, e));
+                }
+            }
+            // Everything else: preprocessor directives, declarations
+            // (typedef / global var / fn prototype), type_definition,
+            // linkage_specification, etc. — all collapse into glue.
+            _ => {
+                glue.push((s, e));
+            }
+        }
+    }
+    flush_glue(&mut glue, &mut units);
+
+    // Post-pass: if the file has no real semantic unit (only glue, or
+    // completely empty), rename the single glue unit to "<module>" and
+    // emit it. If there are zero units AND zero glue, synthesise a
+    // one-line "<module>" covering the whole file.
+    let has_real_unit = units.iter().any(|(_, _, _, is_real)| *is_real);
+
+    if units.is_empty() {
+        // Completely empty file or whitespace/comments only.
+        let total = lines.len() as u32;
+        units.push((
+            "<module>".to_string(),
+            1,
+            total.max(1),
+            false,
+        ));
+    }
+    // If there is only glue (no real unit) the single pushed "<top-level>"
+    // label should be "<module>" — rename it now.
+    if !has_real_unit {
+        for (sym, _, _, _) in units.iter_mut() {
+            if sym == "<top-level>" {
+                *sym = "<module>".to_string();
+            }
+        }
+    }
+
+    let total_lines = lines.len() as u32;
+    let mut blocks = Vec::with_capacity(units.len());
+    for (ordinal, (symbol, ls, le, _is_real)) in units.into_iter().enumerate() {
+        let line_start = ls.max(1);
+        let line_end = le.min(total_lines.max(1));
+        let span = SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol: Some(symbol),
+            lang: Some("c".to_string()),
+        };
+        let block_id = id_for_block(doc_id, "code", &[], ordinal as u32, &span);
+        let code = lines[(line_start as usize - 1)..=(line_end as usize - 1)].join("\n");
+        blocks.push(Block::Code(CodeBlock {
+            common: CommonBlock {
+                block_id,
+                heading_path: Vec::new(),
+                source_span: span,
+            },
+            lang: Some("c".to_string()),
+            code,
+        }));
+    }
+    Ok(blocks)
+}
+
+fn flush_glue(glue: &mut Vec<(u32, u32)>, units: &mut Vec<(String, u32, u32, bool)>) {
+    if glue.is_empty() {
+        return;
+    }
+    let s = glue.iter().map(|(a, _)| *a).min().unwrap();
+    let e = glue.iter().map(|(_, b)| *b).max().unwrap();
+    units.push(("<top-level>".to_string(), s, e, false));
+    glue.clear();
+}
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
+#[cfg(test)]
+pub(crate) mod tests_support {
+    use kebab_core::*;
+    use std::path::PathBuf;
+    use time::OffsetDateTime;
+
+    pub fn fixed_code_asset(workspace_path: &str, lang: &str) -> RawAsset {
+        RawAsset {
+            asset_id: AssetId("a".repeat(64)),
+            source_uri: SourceUri::File(PathBuf::from(workspace_path)),
+            workspace_path: WorkspacePath(workspace_path.to_string()),
+            media_type: MediaType::Code(lang.to_string()),
+            byte_len: 0,
+            checksum: Checksum("b".repeat(64)),
+            discovered_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            stored: AssetStorage::Reference {
+                path: PathBuf::from(workspace_path),
+                sha: Checksum("b".repeat(64)),
+            },
+        }
+    }
+
+    pub fn extract_c(src: &str, path: &str) -> kebab_core::CanonicalDocument {
+        use super::CAstExtractor;
+        use kebab_core::Extractor;
+        let asset = fixed_code_asset(path, "c");
+        let cfg = ExtractConfig::default();
+        let root = PathBuf::from("/tmp");
+        let ctx = ExtractContext {
+            asset: &asset,
+            workspace_root: &root,
+            config: &cfg,
+        };
+        CAstExtractor::new().extract(&ctx, src.as_bytes()).unwrap()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn syms(doc: &kebab_core::CanonicalDocument) -> Vec<String> {
+        doc.blocks
+            .iter()
+            .filter_map(|b| match b {
+                Block::Code(c) => match &c.common.source_span {
+                    SourceSpan::Code { symbol, .. } => symbol.clone(),
+                    _ => None,
+                },
+                _ => None,
+            })
+            .collect()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_c() {
+        let e = CAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("c".into())));
+        assert!(!e.supports(&MediaType::Code("cpp".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn c_extractor_simple_function() {
+        let src = "int add(int a, int b) { return a + b; }\n";
+        let doc = tests_support::extract_c(src, "x/math.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "add"), "got {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_pointer_return_function() {
+        let src = "int *find(int *arr, int n) { return arr; }\n";
+        let doc = tests_support::extract_c(src, "x/find.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "find"), "ptr-return fn missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_static_function() {
+        let src = "static void helper(void) {}\n";
+        let doc = tests_support::extract_c(src, "x/helper.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "helper"), "static fn missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_extern_function() {
+        let src = "extern int compute(int x);\n";
+        // extern prototype is a declaration → glue
+        let doc = tests_support::extract_c(src, "x/compute.c");
+        let s = syms(&doc);
+        // declaration (prototype) falls into glue → "<module>"
+        assert!(
+            s.iter().any(|x| x == "<module>"),
+            "expected <module> for extern proto: {s:?}"
+        );
+    }
+
+    #[test]
+    fn c_extractor_inline_function() {
+        let src = "inline int square(int x) { return x * x; }\n";
+        let doc = tests_support::extract_c(src, "x/square.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "square"), "inline fn missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_named_struct() {
+        let src = "struct Point { int x; int y; };\n";
+        let doc = tests_support::extract_c(src, "x/point.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "Point"), "struct missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_named_enum() {
+        let src = "enum Color { RED, GREEN, BLUE };\n";
+        let doc = tests_support::extract_c(src, "x/color.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "Color"), "enum missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_named_union() {
+        let src = "union Data { int i; float f; };\n";
+        let doc = tests_support::extract_c(src, "x/data.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "Data"), "union missing: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_anonymous_struct_falls_into_glue() {
+        // Anonymous struct (no name field) → glue → "<module>" (only glue, no real unit)
+        let src = "struct { int x; int y; } origin;\n";
+        let doc = tests_support::extract_c(src, "x/anon.c");
+        let s = syms(&doc);
+        // anonymous struct is a declaration containing anonymous struct_specifier → glue
+        assert!(
+            s.iter().any(|x| x == "<module>"),
+            "expected <module> for anon struct: {s:?}"
+        );
+        // Must NOT emit a unit named after anything else
+        assert!(
+            !s.iter().any(|x| x == "origin"),
+            "unexpected 'origin' unit: {s:?}"
+        );
+    }
+
+    #[test]
+    fn c_extractor_typedef_struct_falls_into_glue() {
+        // typedef struct { ... } Foo; — inner struct_specifier is anonymous,
+        // outer node is type_definition → glue. See HOTFIXES.md 2026-05-21.
+        let src = "typedef struct { int x; int y; } Point;\n";
+        let doc = tests_support::extract_c(src, "x/typedef.c");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "<module>"),
+            "expected <module> for typedef struct: {s:?}"
+        );
+        // The typedef alias should NOT surface as a Code symbol
+        assert!(
+            !s.iter().any(|x| x == "Point"),
+            "unexpected 'Point' unit for typedef struct: {s:?}"
+        );
+    }
+
+    #[test]
+    fn c_extractor_preprocessor_directives_are_glue() {
+        let src = "#include <stdio.h>\n#define MAX 100\n#ifdef DEBUG\n#endif\n";
+        let doc = tests_support::extract_c(src, "x/macros.c");
+        let s = syms(&doc);
+        // Only preprocessor → no real unit → "<module>"
+        assert!(
+            s.iter().any(|x| x == "<module>"),
+            "expected <module> for preproc-only file: {s:?}"
+        );
+        assert_eq!(s.len(), 1, "expected exactly 1 block: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_multiple_functions_correct_count() {
+        let src = "int foo(void) { return 1; }\nint bar(void) { return 2; }\nint baz(void) { return 3; }\n";
+        let doc = tests_support::extract_c(src, "x/multi.c");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "foo"), "foo missing: {s:?}");
+        assert!(s.iter().any(|x| x == "bar"), "bar missing: {s:?}");
+        assert!(s.iter().any(|x| x == "baz"), "baz missing: {s:?}");
+        assert_eq!(s.len(), 3, "expected 3 units: {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_empty_file_produces_module() {
+        let src = "";
+        let doc = tests_support::extract_c(src, "x/empty.c");
+        let s = syms(&doc);
+        assert_eq!(s, vec!["<module>"], "expected <module>: got {s:?}");
+    }
+
+    #[test]
+    fn c_extractor_preprocessor_only_produces_module() {
+        let src = "#include <stdlib.h>\n#define VERSION \"1.0\"\n";
+        let doc = tests_support::extract_c(src, "x/header.c");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "<module>"),
+            "expected <module> for preproc-only file: {s:?}"
+        );
+    }
+
+    #[test]
+    fn c_extractor_mixed_functions_and_glue() {
+        let src = r#"#include <stdio.h>
+
+int compute(int x) {
+    return x * 2;
+}
+
+extern int lookup(int key);
+
+void print_result(int v) {
+    printf("%d\n", v);
+}
+"#;
+        let doc = tests_support::extract_c(src, "x/mixed.c");
+        let s = syms(&doc);
+        // Two real functions + one glue block
+        assert!(s.iter().any(|x| x == "compute"), "compute missing: {s:?}");
+        assert!(s.iter().any(|x| x == "print_result"), "print_result missing: {s:?}");
+        assert!(
+            s.iter().any(|x| x == "<top-level>"),
+            "<top-level> glue missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn c_extractor_deterministic_across_runs() {
+        let src = r#"
+struct Node { int val; };
+int sum(int a, int b) { return a + b; }
+void noop(void) {}
+"#;
+        let a = tests_support::extract_c(src, "x/det.c");
+        for _ in 0..20 {
+            assert_eq!(
+                tests_support::extract_c(src, "x/det.c").blocks,
+                a.blocks
+            );
+        }
+    }
+}

crates/kebab-parse-code/src/cpp.rs

@@ -0,0 +1,883 @@
+//! `kebab-parse-code::cpp` — tree-sitter C++ AST extractor (P10-1D Task C).
+//!
+//! Implements [`kebab_core::Extractor`] for [`MediaType::Code("cpp")`].
+//! Walks the tree-sitter parse tree and emits one [`Block::Code`] per
+//! top-level AST semantic unit, each carrying [`SourceSpan::Code`] with
+//! the unit's `::` separated symbol path (design §3.4 C++ row).
+//!
+//! ## Symbol formation
+//!
+//! Symbol = `namespace::Class::method` via recursive `build_blocks`:
+//!
+//! - `namespace_definition` (named) → push namespace name, recurse into body.
+//! - Anonymous namespace (`namespace { ... }`) → push `<anonymous>`, recurse.
+//! - `nested_namespace_specifier` (`outer::inner`) → push all segments, recurse.
+//! - `class_specifier` / `struct_specifier` (named) → emit class unit + recurse
+//!   into body with class name pushed.
+//! - `function_definition` → emit method/function unit. Symbol is built from
+//!   the prefix chain + the extracted declarator name component.
+//! - Out-of-class method def (`void Foo::bar() {}`) — the declarator's inner
+//!   node is a `qualified_identifier`; its scope chain is prepended to the
+//!   current prefix to form the full symbol.
+//! - `template_declaration` → recurse into named children with same prefix;
+//!   the inner function/class body is matched by its own arm. Template params
+//!   are NOT included in the symbol.
+//! - `enum_specifier` (named) → emit type unit.
+//! - `concept_definition` (C++20) → emit type unit.
+//! - `linkage_specification` (extern "C") → recurse into body with same prefix.
+//!
+//! ## Constructor / destructor / operator overload
+//!
+//! - Constructor: `function_declarator > identifier` matching the class name.
+//!   Symbol = `Class::Class` (name duplicated, same convention as Java).
+//! - Destructor: `function_declarator > destructor_name`. Symbol = `Class::~Foo`.
+//! - Operator overload: `function_declarator > operator_name`. Symbol = `Class::operator+`.
+//! - Conversion operator: `function_definition.declarator` is `operator_cast`.
+//!   Symbol = `Class::operator <type>` (e.g. `Class::operator bool`).
+//!
+//! ## Glue
+//!
+//! Everything not in the unit list collapses into a single `<top-level>` glue
+//! chunk (preproc, declarations, using, typedef, etc.). If the file produces
+//! zero units AND zero glue, the `<module>` post-pass emits one unit covering
+//! the whole file.
+//!
+//! Per design §3.4 / §9.1 / §9 versioning.
+
+use anyhow::Result;
+use kebab_core::{
+    Block, CanonicalDocument, CodeBlock, CommonBlock, Extractor, Lang, MediaType, Metadata,
+    ParserVersion, Provenance, ProvenanceEvent, ProvenanceKind, SourceSpan, SourceType, TrustLevel,
+    id_for_block, id_for_doc,
+};
+use serde_json::Map;
+use time::OffsetDateTime;
+
+use crate::scaffold::{filename_from_workspace_path, strip_extension};
+
+pub const PARSER_VERSION: &str = "code-cpp-v1";
+
+/// C++ AST extractor. Per-unit blocks via tree-sitter-cpp 0.23.4
+/// (`LANGUAGE: LanguageFn`) parsed by tree-sitter 0.26.
+pub struct CppAstExtractor;
+
+impl CppAstExtractor {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Default for CppAstExtractor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Extractor for CppAstExtractor {
+    fn supports(&self, m: &MediaType) -> bool {
+        matches!(m, MediaType::Code(l) if l == "cpp")
+    }
+
+    fn parser_version(&self) -> ParserVersion {
+        ParserVersion(PARSER_VERSION.to_string())
+    }
+
+    fn extract(
+        &self,
+        ctx: &kebab_core::ExtractContext<'_>,
+        bytes: &[u8],
+    ) -> Result<CanonicalDocument> {
+        let asset = ctx.asset;
+        if !self.supports(&asset.media_type) {
+            anyhow::bail!(
+                "kebab-parse-code: unsupported media_type for CppAstExtractor: {:?}",
+                asset.media_type
+            );
+        }
+
+        let parser_version = self.parser_version();
+        let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, &parser_version);
+
+        let source = String::from_utf8(bytes.to_vec()).map_err(|e| {
+            anyhow::anyhow!("kebab-parse-code: C++ source is not valid UTF-8: {e}")
+        })?;
+
+        let blocks = build_blocks_top(&source, &doc_id)?;
+        let unit_count = blocks.len() as u32;
+
+        let now = OffsetDateTime::now_utc();
+        let mut events: Vec<ProvenanceEvent> = Vec::with_capacity(2);
+        events.push(ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        });
+        events.push(ProvenanceEvent {
+            at: now,
+            agent: "kb-parse-code".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; unit_count={}",
+                parser_version.0, unit_count
+            )),
+        });
+
+        let title = {
+            let fname = filename_from_workspace_path(&asset.workspace_path.0);
+            strip_extension(&fname)
+        };
+
+        let abs_path = match &asset.source_uri {
+            kebab_core::SourceUri::File(p) => {
+                if p.is_absolute() {
+                    p.clone()
+                } else {
+                    ctx.workspace_root.join(p)
+                }
+            }
+            kebab_core::SourceUri::Kb(_) => ctx.workspace_root.to_path_buf(),
+        };
+        let (repo, git_branch, git_commit) = match crate::repo::detect_repo(&abs_path) {
+            Some(r) => (Some(r.name), r.branch, r.commit),
+            None => (None, None, None),
+        };
+
+        let metadata = Metadata {
+            aliases: Vec::new(),
+            tags: Vec::new(),
+            created_at: asset.discovered_at,
+            updated_at: asset.discovered_at,
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Map::new(),
+            repo,
+            git_branch,
+            git_commit,
+            code_lang: Some("cpp".to_string()),
+        };
+
+        tracing::debug!(
+            target: "kebab-parse-code",
+            "extracted C++ doc_id={} workspace_path={} units={}",
+            doc_id.0,
+            asset.workspace_path.0,
+            unit_count
+        );
+
+        Ok(CanonicalDocument {
+            doc_id,
+            source_asset_id: asset.asset_id.clone(),
+            workspace_path: asset.workspace_path.clone(),
+            title,
+            lang: Lang("und".to_string()),
+            blocks,
+            metadata,
+            provenance: Provenance { events },
+            parser_version,
+            schema_version: 1,
+            doc_version: 1,
+            last_chunker_version: None,
+            last_embedding_version: None,
+        })
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Core block-building logic
+// ---------------------------------------------------------------------------
+
+/// Top-level entry: parse source, walk the `translation_unit` root, assemble
+/// units + glue, apply the `<module>` post-pass, and emit `Block::Code`s.
+fn build_blocks_top(
+    source: &str,
+    doc_id: &kebab_core::DocumentId,
+) -> anyhow::Result<Vec<kebab_core::Block>> {
+    let mut parser = tree_sitter::Parser::new();
+    parser
+        .set_language(&tree_sitter_cpp::LANGUAGE.into())
+        .map_err(|e| anyhow::anyhow!("set tree-sitter-cpp language: {e}"))?;
+    let tree = parser
+        .parse(source.as_bytes(), None)
+        .ok_or_else(|| anyhow::anyhow!("tree-sitter failed to parse C++ source"))?;
+    let lines: Vec<&str> = source.split('\n').collect();
+    let root = tree.root_node();
+
+    // units: (symbol, line_start, line_end, is_real_semantic_unit).
+    // Glue is accumulated as (start, end) pairs and flushed into one
+    // "<top-level>" block (or "<module>" if no real unit exists).
+    let mut units: Vec<(String, u32, u32, bool)> = Vec::new();
+    let mut glue: Vec<(u32, u32)> = Vec::new();
+
+    build_blocks(root, source, &[], &mut units, &mut glue);
+    flush_glue(&mut glue, &mut units);
+
+    // Post-pass: if the file has no real semantic unit (only glue, or
+    // completely empty), rename the single glue unit to "<module>".
+    // If there are zero units AND zero glue, synthesize a one-line
+    // "<module>" covering the whole file.
+    let has_real_unit = units.iter().any(|(_, _, _, is_real)| *is_real);
+
+    if units.is_empty() {
+        let total = lines.len() as u32;
+        units.push(("<module>".to_string(), 1, total.max(1), false));
+    }
+    if !has_real_unit {
+        for (sym, _, _, _) in units.iter_mut() {
+            if sym == "<top-level>" {
+                *sym = "<module>".to_string();
+            }
+        }
+    }
+
+    let total_lines = lines.len() as u32;
+    let mut blocks = Vec::with_capacity(units.len());
+    for (ordinal, (symbol, ls, le, _is_real)) in units.into_iter().enumerate() {
+        let line_start = ls.max(1);
+        let line_end = le.min(total_lines.max(1));
+        let span = SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol: Some(symbol),
+            lang: Some("cpp".to_string()),
+        };
+        let block_id = id_for_block(doc_id, "code", &[], ordinal as u32, &span);
+        let code = lines[(line_start as usize - 1)..=(line_end as usize - 1)].join("\n");
+        blocks.push(Block::Code(CodeBlock {
+            common: CommonBlock {
+                block_id,
+                heading_path: Vec::new(),
+                source_span: span,
+            },
+            lang: Some("cpp".to_string()),
+            code,
+        }));
+    }
+    Ok(blocks)
+}
+
+/// Walk preceding `comment` siblings to extend the unit's line range upward,
+/// folding leading doc / line comments into the unit (1B pattern).
+fn unit_start(n: &tree_sitter::Node) -> u32 {
+    let mut start = n.start_position().row as u32 + 1;
+    let mut prev = n.prev_sibling();
+    while let Some(p) = prev {
+        if p.kind() == "comment" {
+            start = p.start_position().row as u32 + 1;
+            prev = p.prev_sibling();
+        } else {
+            break;
+        }
+    }
+    start
+}
+
+fn flush_glue(glue: &mut Vec<(u32, u32)>, units: &mut Vec<(String, u32, u32, bool)>) {
+    if glue.is_empty() {
+        return;
+    }
+    let s = glue.iter().map(|(a, _)| *a).min().unwrap();
+    let e = glue.iter().map(|(_, b)| *b).max().unwrap();
+    units.push(("<top-level>".to_string(), s, e, false));
+    glue.clear();
+}
+
+/// Walk a scope node (translation_unit, declaration_list, field_declaration_list)
+/// emitting unit + glue blocks. `prefix` is the current namespace/class chain
+/// (e.g. `["kebab", "Chunk", "Foo"]`).
+///
+/// After returning, any pending glue in `glue` is NOT flushed — callers
+/// responsible for flushing at the scope boundary (top-level flush in
+/// `build_blocks_top`). Within recursive scope bodies (namespace/class) we
+/// do flush before returning so that glue doesn't leak across scopes.
+fn build_blocks(
+    node: tree_sitter::Node,
+    source: &str,
+    prefix: &[String],
+    units: &mut Vec<(String, u32, u32, bool)>,
+    glue: &mut Vec<(u32, u32)>,
+) {
+    let mut cur = node.walk();
+    for child in node.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+
+        match child.kind() {
+            "namespace_definition" => {
+                // Flush pending glue before starting this namespace block.
+                flush_glue(glue, units);
+
+                let name_node = child.child_by_field_name("name");
+                let body = child
+                    .child_by_field_name("body")
+                    .unwrap_or(child);
+
+                match name_node {
+                    None => {
+                        // Anonymous namespace: push "<anonymous>", recurse.
+                        let mut new_prefix = prefix.to_vec();
+                        new_prefix.push("<anonymous>".to_string());
+                        build_blocks(body, source, &new_prefix, units, glue);
+                        flush_glue(glue, units);
+                    }
+                    Some(nn) => match nn.kind() {
+                        "namespace_identifier" => {
+                            let name = &source[nn.start_byte()..nn.end_byte()];
+                            let mut new_prefix = prefix.to_vec();
+                            new_prefix.push(name.to_string());
+                            build_blocks(body, source, &new_prefix, units, glue);
+                            flush_glue(glue, units);
+                        }
+                        "nested_namespace_specifier" => {
+                            // e.g. `namespace outer::inner { ... }`
+                            // All named children are namespace_identifier nodes.
+                            let mut new_prefix = prefix.to_vec();
+                            let mut nc = nn.walk();
+                            for seg in nn.named_children(&mut nc) {
+                                new_prefix.push(source[seg.start_byte()..seg.end_byte()].to_string());
+                            }
+                            build_blocks(body, source, &new_prefix, units, glue);
+                            flush_glue(glue, units);
+                        }
+                        _ => {
+                            // Unknown name kind — treat entire namespace as glue.
+                            glue.push((s, e));
+                        }
+                    },
+                }
+            }
+
+            "class_specifier" | "struct_specifier" => {
+                let name_node = child.child_by_field_name("name");
+                let Some(nn) = name_node else {
+                    // Anonymous class/struct — glue.
+                    glue.push((s, e));
+                    continue;
+                };
+                let name = match nn.kind() {
+                    "type_identifier" => &source[nn.start_byte()..nn.end_byte()],
+                    _ => {
+                        // template_type or qualified_identifier — use full text
+                        // as the symbol segment (includes template args).
+                        &source[nn.start_byte()..nn.end_byte()]
+                    }
+                };
+
+                flush_glue(glue, units);
+                let sym = build_symbol(prefix, &[name]);
+                units.push((sym, s, e, true));
+
+                if let Some(body) = child.child_by_field_name("body") {
+                    let mut new_prefix = prefix.to_vec();
+                    new_prefix.push(name.to_string());
+                    build_blocks(body, source, &new_prefix, units, glue);
+                    flush_glue(glue, units);
+                }
+            }
+
+            "function_definition" => {
+                let decl = child.child_by_field_name("declarator");
+                let Some(decl_node) = decl else {
+                    glue.push((s, e));
+                    continue;
+                };
+
+                match extract_fn_symbol(decl_node, source, prefix) {
+                    Some(sym) => {
+                        flush_glue(glue, units);
+                        units.push((sym, s, e, true));
+                    }
+                    None => {
+                        glue.push((s, e));
+                    }
+                }
+            }
+
+            "template_declaration" => {
+                // Unwrap: recurse into named children with same prefix.
+                // The inner function/class/concept will be matched by their own
+                // arms. template_parameter_list is not a unit; it will fall
+                // through to glue (it's not a named child of the template_declaration
+                // that matches any of our arms).
+                build_blocks(child, source, prefix, units, glue);
+                // Do NOT flush glue here — template body may be part of a glue group.
+            }
+
+            "enum_specifier" => {
+                if let Some(nn) = child.child_by_field_name("name") {
+                    let name = &source[nn.start_byte()..nn.end_byte()];
+                    flush_glue(glue, units);
+                    let sym = build_symbol(prefix, &[name]);
+                    units.push((sym, s, e, true));
+                } else {
+                    // Anonymous enum — glue.
+                    glue.push((s, e));
+                }
+            }
+
+            "concept_definition" => {
+                // C++20. Has required "name" field (identifier).
+                if let Some(nn) = child.child_by_field_name("name") {
+                    let name = &source[nn.start_byte()..nn.end_byte()];
+                    flush_glue(glue, units);
+                    let sym = build_symbol(prefix, &[name]);
+                    units.push((sym, s, e, true));
+                } else {
+                    glue.push((s, e));
+                }
+            }
+
+            "linkage_specification" => {
+                // extern "C" { ... } — glue-wrapper, but recurse into body
+                // with same prefix so inner definitions are extracted.
+                let body = child.child_by_field_name("body").unwrap_or(child);
+                // The linkage_spec itself is glue; inner defs handled by recursion.
+                // Don't emit the wrapper as a unit; but also don't push it as glue
+                // since recursion will push its inner children individually.
+                build_blocks(body, source, prefix, units, glue);
+            }
+
+            // Everything else: preproc, declarations, using, typedef, etc.
+            _ => {
+                glue.push((s, e));
+            }
+        }
+    }
+}
+
+/// Join prefix + extras into a `::` separated symbol.
+fn build_symbol(prefix: &[String], extras: &[&str]) -> String {
+    let mut parts: Vec<&str> = prefix.iter().map(String::as_str).collect();
+    parts.extend_from_slice(extras);
+    parts.join("::")
+}
+
+/// Extract the symbol for a `function_definition` given its top-level
+/// `declarator` node. Returns `None` if the name cannot be determined.
+///
+/// The declarator chain may be:
+/// - `function_declarator` (plain fn or method)
+/// - `pointer_declarator` wrapping `function_declarator` (fn returning pointer)
+/// - `reference_declarator` wrapping `function_declarator` (fn returning ref)
+/// - `operator_cast` (conversion operator — e.g. `operator bool`)
+///
+/// The inner `function_declarator.declarator` is one of:
+/// - `identifier` → free fn or constructor, symbol = `prefix::name`
+/// - `field_identifier` → method in class body, symbol = `prefix::name`
+/// - `destructor_name` → `~Foo`, symbol = `prefix::~Foo`
+/// - `operator_name` → `operator+` etc., symbol = `prefix::operator+`
+/// - `qualified_identifier` → out-of-class def `Foo::bar` or `ns::Foo::bar`;
+///   the scope chain is extracted and prepended to prefix.
+///
+/// For `qualified_identifier`, the scope hierarchy (which may itself be a
+/// `qualified_identifier`) is flattened into a list of segments. These
+/// segments REPLACE the current prefix (since out-of-class defs carry their
+/// full scope explicitly). Example: `void ns::Foo::bar() {}` at top level
+/// with prefix=[] → segments=[ns, Foo, bar] → symbol = `ns::Foo::bar`.
+fn extract_fn_symbol(
+    decl_node: tree_sitter::Node,
+    source: &str,
+    prefix: &[String],
+) -> Option<String> {
+    // Walk down pointer/reference wrapper layers to reach the
+    // function_declarator (or operator_cast at definition level).
+    let fn_decl = unwrap_to_fn_declarator(decl_node, source)?;
+
+    match fn_decl.kind() {
+        "operator_cast" => {
+            // e.g. `operator bool() const` — the function_definition.declarator
+            // IS the operator_cast (no function_declarator wrapper).
+            // Symbol = `prefix::operator <type>`.
+            let type_node = fn_decl.child_by_field_name("type")?;
+            let type_text = &source[type_node.start_byte()..type_node.end_byte()];
+            Some(build_symbol(prefix, &[&format!("operator {type_text}")]))
+        }
+        "function_declarator" => {
+            let inner = fn_decl.child_by_field_name("declarator")?;
+            extract_name_node(inner, source, prefix)
+        }
+        _ => None,
+    }
+}
+
+/// Walk pointer_declarator / reference_declarator chains down to the
+/// first `function_declarator` or `operator_cast` node.
+///
+/// Returns `None` if no such node is found (e.g. a function definition
+/// whose declarator is malformed or unknown).
+fn unwrap_to_fn_declarator<'a>(
+    mut node: tree_sitter::Node<'a>,
+    _source: &str,
+) -> Option<tree_sitter::Node<'a>> {
+    loop {
+        match node.kind() {
+            "function_declarator" | "operator_cast" => return Some(node),
+            "pointer_declarator" => {
+                node = node.child_by_field_name("declarator")?;
+            }
+            "reference_declarator" | "rvalue_reference_declarator" => {
+                // reference_declarator has no `declarator` field; its child
+                // is in the unnamed children list.
+                let mut walker = node.walk();
+                node = node.named_children(&mut walker).next()?;
+            }
+            _ => return None,
+        }
+    }
+}
+
+/// Given the innermost name node of a function_declarator, produce the symbol.
+fn extract_name_node(
+    inner: tree_sitter::Node,
+    source: &str,
+    prefix: &[String],
+) -> Option<String> {
+    match inner.kind() {
+        "identifier" | "field_identifier" => {
+            let name = &source[inner.start_byte()..inner.end_byte()];
+            Some(build_symbol(prefix, &[name]))
+        }
+        "destructor_name" => {
+            // destructor_name text includes the `~` prefix (e.g. "~Foo").
+            let full = &source[inner.start_byte()..inner.end_byte()];
+            Some(build_symbol(prefix, &[full]))
+        }
+        "operator_name" => {
+            // Full text e.g. "operator+", "operator->", "operator()".
+            let full = &source[inner.start_byte()..inner.end_byte()];
+            Some(build_symbol(prefix, &[full]))
+        }
+        "template_function" | "template_method" => {
+            // Template function like `foo<int>()`. Use the `name` field
+            // (the identifier / field_identifier before `<`).
+            let name_node = inner.child_by_field_name("name")?;
+            let name = &source[name_node.start_byte()..name_node.end_byte()];
+            Some(build_symbol(prefix, &[name]))
+        }
+        "qualified_identifier" => {
+            // Out-of-class method definition. Flatten the nested
+            // qualified_identifier chain into ordered segments.
+            // Example: `ns::Foo::method`
+            //   qualified_identifier {
+            //     scope: namespace_identifier "ns"
+            //     name: qualified_identifier {
+            //       scope: namespace_identifier "Foo"
+            //       name: identifier "method"
+            //     }
+            //   }
+            // → ["ns", "Foo", "method"]
+            //
+            // These segments are combined with the current prefix so that a
+            // top-level out-of-class def `void Foo::bar() {}` inside a
+            // namespace body with prefix=["ns"] produces `ns::Foo::bar`.
+            let mut segments: Vec<String> = Vec::new();
+            flatten_qualified_id(inner, source, &mut segments);
+            if segments.is_empty() {
+                return None;
+            }
+            // Build: prefix + all segments (scope chain + leaf).
+            let mut all: Vec<&str> = prefix.iter().map(String::as_str).collect();
+            for seg in &segments {
+                all.push(seg.as_str());
+            }
+            Some(all.join("::"))
+        }
+        _ => None,
+    }
+}
+
+/// Recursively flatten a `qualified_identifier` node into ordered string
+/// segments. For `ns::Foo::method` this produces `["ns", "Foo", "method"]`.
+fn flatten_qualified_id(node: tree_sitter::Node, source: &str, out: &mut Vec<String>) {
+    // A qualified_identifier has:
+    //   scope: namespace_identifier | (None for global-scope `::foo`)
+    //   name:  identifier | field_identifier | destructor_name |
+    //          operator_name | qualified_identifier | template_function |
+    //          template_method | ...
+    let scope_node = node.child_by_field_name("scope");
+    let name_node = node.child_by_field_name("name");
+
+    if let Some(s) = scope_node {
+        out.push(source[s.start_byte()..s.end_byte()].to_string());
+    }
+
+    match name_node {
+        Some(n) if n.kind() == "qualified_identifier" => {
+            // Recurse: more nesting.
+            flatten_qualified_id(n, source, out);
+        }
+        Some(n) => {
+            // Leaf name — push its text.
+            out.push(source[n.start_byte()..n.end_byte()].to_string());
+        }
+        None => {}
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
+#[cfg(test)]
+pub(crate) mod tests_support {
+    use kebab_core::*;
+    use std::path::PathBuf;
+    use time::OffsetDateTime;
+
+    pub fn fixed_code_asset(workspace_path: &str, lang: &str) -> RawAsset {
+        RawAsset {
+            asset_id: AssetId("a".repeat(64)),
+            source_uri: SourceUri::File(PathBuf::from(workspace_path)),
+            workspace_path: WorkspacePath(workspace_path.to_string()),
+            media_type: MediaType::Code(lang.to_string()),
+            byte_len: 0,
+            checksum: Checksum("b".repeat(64)),
+            discovered_at: OffsetDateTime::from_unix_timestamp(1_700_000_000).unwrap(),
+            stored: AssetStorage::Reference {
+                path: PathBuf::from(workspace_path),
+                sha: Checksum("b".repeat(64)),
+            },
+        }
+    }
+
+    pub fn extract_cpp(src: &str, path: &str) -> kebab_core::CanonicalDocument {
+        use super::CppAstExtractor;
+        use kebab_core::Extractor;
+        let asset = fixed_code_asset(path, "cpp");
+        let cfg = ExtractConfig::default();
+        let root = PathBuf::from("/tmp");
+        let ctx = ExtractContext {
+            asset: &asset,
+            workspace_root: &root,
+            config: &cfg,
+        };
+        CppAstExtractor::new().extract(&ctx, src.as_bytes()).unwrap()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn syms(doc: &kebab_core::CanonicalDocument) -> Vec<String> {
+        let mut s: Vec<String> = doc
+            .blocks
+            .iter()
+            .filter_map(|b| match b {
+                Block::Code(c) => match &c.common.source_span {
+                    SourceSpan::Code { symbol, .. } => symbol.clone(),
+                    _ => None,
+                },
+                _ => None,
+            })
+            .collect();
+        s.sort();
+        s
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_cpp() {
+        let e = CppAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("cpp".into())));
+        assert!(!e.supports(&MediaType::Code("c".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn free_function() {
+        let src = "void foo() {}\n";
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "foo"), "got {s:?}");
+    }
+
+    #[test]
+    fn namespace_and_class() {
+        let src = r#"
+namespace ns {
+    class Foo {
+    public:
+        void method() {}
+        Foo() {}
+        ~Foo() {}
+        int operator+(const Foo& o) { return 0; }
+    };
+}
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "ns::Foo"), "ns::Foo missing: {s:?}");
+        assert!(s.iter().any(|x| x == "ns::Foo::method"), "method missing: {s:?}");
+        assert!(s.iter().any(|x| x == "ns::Foo::Foo"), "ctor missing: {s:?}");
+        assert!(s.iter().any(|x| x == "ns::Foo::~Foo"), "dtor missing: {s:?}");
+        assert!(s.iter().any(|x| x == "ns::Foo::operator+"), "op+ missing: {s:?}");
+    }
+
+    #[test]
+    fn anonymous_namespace() {
+        let src = r#"
+namespace {
+    void hidden_fn() {}
+}
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "<anonymous>::hidden_fn"),
+            "anon fn missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn nested_namespace_specifier() {
+        let src = r#"
+namespace outer::inner {
+    void fn_in_nested() {}
+}
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "outer::inner::fn_in_nested"),
+            "nested ns fn missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn out_of_class_method_def() {
+        let src = r#"
+void ns::Foo::method() { }
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "ns::Foo::method"),
+            "out-of-class method missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn template_declaration() {
+        let src = r#"
+template<typename T>
+class Bar {
+    void tmpl_method() {}
+};
+
+template<typename T>
+void tmpl_free_fn(T x) {}
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "Bar"), "Bar class missing: {s:?}");
+        assert!(
+            s.iter().any(|x| x == "Bar::tmpl_method"),
+            "Bar::tmpl_method missing: {s:?}"
+        );
+        assert!(
+            s.iter().any(|x| x == "tmpl_free_fn"),
+            "tmpl_free_fn missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn enum_and_concept() {
+        let src = r#"
+enum class Color { Red, Green };
+
+template<typename T>
+concept Printable = requires(T t) { t.print(); };
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "Color"), "Color missing: {s:?}");
+        assert!(s.iter().any(|x| x == "Printable"), "Printable missing: {s:?}");
+    }
+
+    #[test]
+    fn extern_c_block() {
+        let src = r#"
+extern "C" {
+    void c_fn1() {}
+    void c_fn2() {}
+}
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "c_fn1"), "c_fn1 missing: {s:?}");
+        assert!(s.iter().any(|x| x == "c_fn2"), "c_fn2 missing: {s:?}");
+    }
+
+    #[test]
+    fn conversion_operator() {
+        let src = r#"
+class Foo {
+    operator bool() const { return true; }
+};
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "Foo::operator bool"),
+            "conversion op missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn empty_file_produces_module() {
+        let src = "";
+        let doc = tests_support::extract_cpp(src, "x/empty.cpp");
+        let s = syms(&doc);
+        assert_eq!(s, vec!["<module>"], "expected <module>: got {s:?}");
+    }
+
+    #[test]
+    fn glue_only_produces_module() {
+        let src = "#include <vector>\nusing namespace std;\n";
+        let doc = tests_support::extract_cpp(src, "x/glue.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "<module>"), "expected <module>: got {s:?}");
+    }
+
+    #[test]
+    fn ptr_returning_function() {
+        let src = "int* ptr_fn(int x) { return &x; }\n";
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(s.iter().any(|x| x == "ptr_fn"), "ptr_fn missing: {s:?}");
+    }
+
+    #[test]
+    fn ref_returning_operator() {
+        let src = r#"
+class Foo {
+    Foo& operator=(const Foo& o) { return *this; }
+};
+"#;
+        let doc = tests_support::extract_cpp(src, "x/foo.cpp");
+        let s = syms(&doc);
+        assert!(
+            s.iter().any(|x| x == "Foo::operator="),
+            "operator= missing: {s:?}"
+        );
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let src = r#"
+namespace ns {
+    class Foo {
+        void method() {}
+    };
+}
+void free_fn() {}
+"#;
+        let a = tests_support::extract_cpp(src, "x/foo.cpp");
+        for _ in 0..20 {
+            assert_eq!(tests_support::extract_cpp(src, "x/foo.cpp").blocks, a.blocks);
+        }
+    }
+}

crates/kebab-parse-code/src/go.rs

@@ -0,0 +1,451 @@
+//! `kebab-parse-code::go` — tree-sitter Go AST extractor (P10-1C-Go Task D).
+//!
+//! Implements [`kebab_core::Extractor`] for [`MediaType::Code("go")`].
+//! Walks the tree-sitter parse tree and emits one [`Block::Code`] per
+//! top-level AST semantic unit (free fn, method, each type spec) carrying
+//! [`SourceSpan::Code`] with the unit's self-reference symbol path
+//! (design §3.4 Go row). Glue declarations (`import` / `const` / `var`)
+//! collapse into one grouped `<top-level>` (or `<module>`) unit.
+//!
+//! Unlike the Python/TS/JS extractors which path-derive their module
+//! prefix from the workspace file path, Go's package identity comes from
+//! the source itself (the leading `package` clause) — `extract_package`
+//! reads it from the AST. If the `package_clause` is missing (invalid Go
+//! in practice) the prefix falls back to `"<unknown>"`.
+//!
+//! Doc comments immediately preceding an item are folded into that
+//! item's line range via `unit_start` (1B pattern). Go has no separate
+//! attribute/decorator AST nodes.
+//!
+//! Per design §3.4 / §9.1 / §9 versioning.
+
+use anyhow::Result;
+use kebab_core::{
+    Block, CanonicalDocument, CodeBlock, CommonBlock, Extractor, Lang, MediaType, Metadata,
+    ParserVersion, Provenance, ProvenanceEvent, ProvenanceKind, SourceSpan, SourceType, TrustLevel,
+    id_for_block, id_for_doc,
+};
+use serde_json::Map;
+use time::OffsetDateTime;
+
+use crate::scaffold::{filename_from_workspace_path, join_symbol, strip_extension};
+
+pub const PARSER_VERSION: &str = "code-go-v1";
+
+/// Go AST extractor. Per-unit blocks via tree-sitter-go 0.25
+/// (`LANGUAGE: LanguageFn`) parsed by tree-sitter 0.26.
+pub struct GoAstExtractor;
+
+impl GoAstExtractor {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Default for GoAstExtractor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Extractor for GoAstExtractor {
+    fn supports(&self, m: &MediaType) -> bool {
+        matches!(m, MediaType::Code(l) if l == "go")
+    }
+
+    fn parser_version(&self) -> ParserVersion {
+        ParserVersion(PARSER_VERSION.to_string())
+    }
+
+    fn extract(
+        &self,
+        ctx: &kebab_core::ExtractContext<'_>,
+        bytes: &[u8],
+    ) -> Result<CanonicalDocument> {
+        let asset = ctx.asset;
+        if !self.supports(&asset.media_type) {
+            anyhow::bail!(
+                "kebab-parse-code: unsupported media_type for GoAstExtractor: {:?}",
+                asset.media_type
+            );
+        }
+
+        let parser_version = self.parser_version();
+        let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, &parser_version);
+
+        let source = String::from_utf8(bytes.to_vec())
+            .map_err(|e| anyhow::anyhow!("kebab-parse-code: Go source is not valid UTF-8: {e}"))?;
+
+        let blocks = build_blocks(&source, &doc_id)?;
+        let unit_count = blocks.len() as u32;
+
+        let now = OffsetDateTime::now_utc();
+        let mut events: Vec<ProvenanceEvent> = Vec::with_capacity(2);
+        events.push(ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        });
+        events.push(ProvenanceEvent {
+            at: now,
+            agent: "kb-parse-code".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; unit_count={}",
+                parser_version.0, unit_count
+            )),
+        });
+
+        let title = {
+            let fname = filename_from_workspace_path(&asset.workspace_path.0);
+            strip_extension(&fname)
+        };
+
+        // Resolve the file's absolute path for repo detection. If the
+        // source URI carries a relative path, anchor it at the workspace
+        // root so the `.git/` walk-up starts from the right place.
+        let abs_path = match &asset.source_uri {
+            kebab_core::SourceUri::File(p) => {
+                if p.is_absolute() {
+                    p.clone()
+                } else {
+                    ctx.workspace_root.join(p)
+                }
+            }
+            kebab_core::SourceUri::Kb(_) => ctx.workspace_root.to_path_buf(),
+        };
+        let (repo, git_branch, git_commit) = match crate::repo::detect_repo(&abs_path) {
+            Some(r) => (Some(r.name), r.branch, r.commit),
+            None => (None, None, None),
+        };
+
+        let metadata = Metadata {
+            aliases: Vec::new(),
+            tags: Vec::new(),
+            created_at: asset.discovered_at,
+            updated_at: asset.discovered_at,
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Map::new(),
+            repo,
+            git_branch,
+            git_commit,
+            code_lang: Some("go".to_string()),
+        };
+
+        tracing::debug!(
+            target: "kebab-parse-code",
+            "extracted Go doc_id={} workspace_path={} units={}",
+            doc_id.0,
+            asset.workspace_path.0,
+            unit_count
+        );
+
+        Ok(CanonicalDocument {
+            doc_id,
+            source_asset_id: asset.asset_id.clone(),
+            workspace_path: asset.workspace_path.clone(),
+            title,
+            lang: Lang("und".to_string()),
+            blocks,
+            metadata,
+            provenance: Provenance { events },
+            parser_version,
+            schema_version: 1,
+            doc_version: 1,
+            last_chunker_version: None,
+            last_embedding_version: None,
+        })
+    }
+}
+
+/// p10-1C-Go: extract `package` declaration text from a tree-sitter-go
+/// `source_file`. Returns `None` if no `package_clause` (invalid Go in
+/// practice but defense-in-depth). Per design §3.4 Go row.
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_clause" {
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "package_identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+
+fn build_blocks(
+    source: &str,
+    doc_id: &kebab_core::DocumentId,
+) -> anyhow::Result<Vec<kebab_core::Block>> {
+    let mut parser = tree_sitter::Parser::new();
+    parser
+        .set_language(&tree_sitter_go::LANGUAGE.into())
+        .map_err(|e| anyhow::anyhow!("set tree-sitter-go language: {e}"))?;
+    let tree = parser
+        .parse(source.as_bytes(), None)
+        .ok_or_else(|| anyhow::anyhow!("tree-sitter failed to parse Go source"))?;
+    let lines: Vec<&str> = source.split('\n').collect();
+
+    let root = tree.root_node();
+    let mod_prefix = extract_package(root, source).unwrap_or_else(|| "<unknown>".to_string());
+
+    // units: (symbol, line_start, line_end, is_real_semantic_unit).
+    // Glue groups are pushed with a sentinel symbol + is_real=false so a
+    // post-pass can decide `<module>` vs `<top-level>` (1B post-pass
+    // mirror).
+    let mut units: Vec<(String, u32, u32, bool)> = Vec::new();
+    // (is_import 0/1, s, e). `is_import` flags `import_declaration` —
+    // used by the glue flush to pick `<module>` vs `<top-level>`
+    // provisional label.
+    let mut glue: Vec<(usize, u32, u32)> = Vec::new();
+
+    fn node_name_text<'a>(n: &tree_sitter::Node, src: &'a str) -> Option<&'a str> {
+        n.child_by_field_name("name")
+            .map(|c| &src[c.start_byte()..c.end_byte()])
+    }
+    /// Walk preceding `comment` siblings to extend the unit's line range
+    /// upward, folding leading doc / line comments into the unit. Go has
+    /// no decorator/attribute nodes — doc comments are simply preceding
+    /// `comment` siblings (the 1B pattern).
+    fn unit_start(n: &tree_sitter::Node) -> u32 {
+        let mut start = n.start_position().row as u32 + 1;
+        let mut prev = n.prev_sibling();
+        while let Some(p) = prev {
+            if p.kind() == "comment" {
+                start = p.start_position().row as u32 + 1;
+                prev = p.prev_sibling();
+            } else {
+                break;
+            }
+        }
+        start
+    }
+
+    /// Extract the receiver type text for a `method_declaration`. The
+    /// returned slice INCLUDES the leading `*` for pointer receivers
+    /// (`(*Foo).Bar`) per design §3.4 Go row example. Returns `None` if
+    /// the receiver is malformed (defense in depth).
+    fn receiver_type_text<'a>(method_node: &tree_sitter::Node, src: &'a str) -> Option<&'a str> {
+        let recv = method_node.child_by_field_name("receiver")?;
+        let mut cw = recv.walk();
+        for p in recv.named_children(&mut cw) {
+            if p.kind() == "parameter_declaration" {
+                if let Some(ty) = p.child_by_field_name("type") {
+                    return Some(&src[ty.start_byte()..ty.end_byte()]);
+                }
+            }
+        }
+        None
+    }
+
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+        match child.kind() {
+            "function_declaration" => {
+                if let Some(name) = node_name_text(&child, source) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(&mut glue, &mut units, &mod_prefix);
+                    let sym = join_symbol(&mod_prefix, &[], name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "method_declaration" => {
+                if let Some(name_node) = child.child_by_field_name("name") {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(&mut glue, &mut units, &mod_prefix);
+                    let owner = receiver_type_text(&child, source).unwrap_or("<unknown>");
+                    let method_name = &source[name_node.start_byte()..name_node.end_byte()];
+                    let sym = format!("{mod_prefix}.({owner}).{method_name}");
+                    units.push((sym, s, e, true));
+                }
+            }
+            "type_declaration" => {
+                // One unit per inner `type_spec`. Each type_spec gets
+                // the type_declaration's whole upward-folded `s` range
+                // start so doc comments are attached to the first spec;
+                // subsequent specs use their own start. Match 1B
+                // pattern: keep the outer `s` only when there's a single
+                // spec; otherwise use the spec's own start.
+                let mut tcur = child.walk();
+                let specs: Vec<tree_sitter::Node> = child
+                    .named_children(&mut tcur)
+                    .filter(|c| c.kind() == "type_spec")
+                    .collect();
+                let single = specs.len() == 1;
+                for spec in specs {
+                    let name_node = match spec.child_by_field_name("name") {
+                        Some(n) => n,
+                        None => continue,
+                    };
+                    let spec_s = if single {
+                        s
+                    } else {
+                        spec.start_position().row as u32 + 1
+                    };
+                    let spec_e = spec.end_position().row as u32 + 1;
+                    glue.retain(|(_, gs, _)| *gs < spec_s);
+                    flush_glue(&mut glue, &mut units, &mod_prefix);
+                    let name = &source[name_node.start_byte()..name_node.end_byte()];
+                    let sym = join_symbol(&mod_prefix, &[], name);
+                    units.push((sym, spec_s, spec_e, true));
+                }
+            }
+            "import_declaration" => {
+                glue.push((1, s, e));
+            }
+            "const_declaration" | "var_declaration" => {
+                glue.push((0, s, e));
+            }
+            _ => {}
+        }
+    }
+    flush_glue(&mut glue, &mut units, &mod_prefix);
+
+    // `<module>` is correct only when the file produced no real unit.
+    // Otherwise the import/const/var-only group becomes `<top-level>`
+    // (same post-pass as 1B). Match on the suffix so the demotion stays
+    // mod-prefix-agnostic.
+    let has_real_unit = units.iter().any(|(_, _, _, is_real)| *is_real);
+    if has_real_unit {
+        for (sym, _, _, is_real) in units.iter_mut() {
+            if !*is_real && sym.ends_with("<module>") {
+                let pre = &sym[..sym.len() - "<module>".len()];
+                *sym = format!("{pre}<top-level>");
+            }
+        }
+    }
+
+    let total_lines = lines.len() as u32;
+    let mut blocks = Vec::with_capacity(units.len());
+    for (ordinal, (symbol, ls, le, _is_real)) in units.into_iter().enumerate() {
+        let line_start = ls.max(1);
+        let line_end = le.min(total_lines.max(1));
+        let span = SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol: Some(symbol),
+            lang: Some("go".to_string()),
+        };
+        let block_id = id_for_block(doc_id, "code", &[], ordinal as u32, &span);
+        let code = lines[(line_start as usize - 1)..=(line_end as usize - 1)].join("\n");
+        blocks.push(Block::Code(CodeBlock {
+            common: CommonBlock {
+                block_id,
+                heading_path: Vec::new(),
+                source_span: span,
+            },
+            lang: Some("go".to_string()),
+            code,
+        }));
+    }
+    Ok(blocks)
+}
+
+fn flush_glue(
+    glue: &mut Vec<(usize, u32, u32)>,
+    units: &mut Vec<(String, u32, u32, bool)>,
+    mod_prefix: &str,
+) {
+    if glue.is_empty() {
+        return;
+    }
+    let s = glue.iter().map(|(_, a, _)| *a).min().unwrap();
+    let e = glue.iter().map(|(_, _, b)| *b).max().unwrap();
+    // Provisional label: `<module>` only if the group is exclusively
+    // imports (1A's `only_mod_decls` analog). The post-pass demotes any
+    // `<module>` to `<top-level>` if the file produced any real unit.
+    let only_imports = glue.iter().all(|(is_import, _, _)| *is_import == 1);
+    let label = if only_imports { "<module>" } else { "<top-level>" };
+    units.push((join_symbol(mod_prefix, &[], label), s, e, false));
+    glue.clear();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn extract_fixture() -> kebab_core::CanonicalDocument {
+        let bytes = std::fs::read(concat!(
+            env!("CARGO_MANIFEST_DIR"),
+            "/tests/fixtures/sample.go"
+        ))
+        .unwrap();
+        // Reuse the cross-language test-support helper promoted in 1B.
+        let asset = crate::rust::tests_support::fixed_code_asset("crates/x/src/sample.go", "go");
+        let cfg = kebab_core::ExtractConfig::default();
+        let root = std::path::PathBuf::from("/tmp");
+        let ctx = kebab_core::ExtractContext {
+            asset: &asset,
+            workspace_root: &root,
+            config: &cfg,
+        };
+        GoAstExtractor::new().extract(&ctx, &bytes).unwrap()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_go() {
+        let e = GoAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("go".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn go_units_match_design_3_4_symbols() {
+        let doc = extract_fixture();
+        let mut syms: Vec<String> = doc
+            .blocks
+            .iter()
+            .filter_map(|b| match b {
+                Block::Code(c) => match &c.common.source_span {
+                    SourceSpan::Code { symbol, lang, .. } => {
+                        assert_eq!(lang.as_deref(), Some("go"));
+                        symbol.clone()
+                    }
+                    _ => None,
+                },
+                _ => None,
+            })
+            .collect();
+        syms.sort();
+        assert!(syms.iter().any(|s| s == "chunk.Free"), "got {syms:?}");
+        assert!(syms.iter().any(|s| s == "chunk.init"), "got {syms:?}");
+        assert!(
+            syms.iter().any(|s| s == "chunk.MdHeadingV1Chunker"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "chunk.(*MdHeadingV1Chunker).ChunkDoc"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "chunk.(MdHeadingV1Chunker).Name2"),
+            "got {syms:?}"
+        );
+        assert!(syms.iter().any(|s| s == "chunk.Stringer"), "got {syms:?}");
+        // import + const grouped into one glue unit (no isolated `<module>`).
+        assert!(
+            syms.iter().any(|s| s == "chunk.<top-level>"),
+            "got {syms:?}"
+        );
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let a = extract_fixture();
+        for _ in 0..50 {
+            assert_eq!(extract_fixture().blocks, a.blocks);
+        }
+    }
+}

crates/kebab-parse-code/src/java.rs

@@ -0,0 +1,543 @@
+//! `kebab-parse-code::java` — tree-sitter Java AST extractor (P10-1C-JK Task D).
+//!
+//! Implements [`kebab_core::Extractor`] for [`MediaType::Code("java")`].
+//! Walks the tree-sitter parse tree and emits one [`Block::Code`] per
+//! top-level AST semantic unit (class / interface / enum / record /
+//! annotation-type at any nesting level, plus methods + constructors
+//! inside class / interface / record bodies), each carrying
+//! [`SourceSpan::Code`] with the unit's dotted self-reference symbol
+//! path (design §3.4 Java row). Glue declarations (`import`) collapse
+//! into one grouped `<top-level>` (or `<module>`) unit.
+//!
+//! Like the Go extractor, Java's package identity comes from the
+//! source itself (the `package_declaration` clause), not from the
+//! workspace file path — `extract_package` reads it from the AST. If
+//! the clause is missing the prefix falls back to `"<unknown>"`.
+//!
+//! Class/interface/record bodies are recursed (1B Python pattern):
+//! the type name is pushed onto `mod_path` so methods and nested
+//! types become `<pkg>.<Outer>.<Inner>.<method>`. Constructors use
+//! the Java convention `<pkg>.<...>.<Class>.<ClassName>` (name
+//! duplicated, per design §3.4). Enum bodies are not recursed for
+//! the 1차 cut — enum constants are not emitted as units.
+//!
+//! Javadoc (`/** ... */` → `block_comment`) and line comments
+//! immediately preceding an item are folded into that item's line
+//! range via `unit_start` (1B pattern). Annotations are children of
+//! the declaration node itself (inside `modifiers`), so they are
+//! already part of the declaration's span — no separate unwrap arm.
+//!
+//! Per design §3.4 / §9.1 / §9 versioning.
+
+use anyhow::Result;
+use kebab_core::{
+    Block, CanonicalDocument, CodeBlock, CommonBlock, Extractor, Lang, MediaType, Metadata,
+    ParserVersion, Provenance, ProvenanceEvent, ProvenanceKind, SourceSpan, SourceType, TrustLevel,
+    id_for_block, id_for_doc,
+};
+use serde_json::Map;
+use time::OffsetDateTime;
+
+use crate::scaffold::{filename_from_workspace_path, join_symbol, strip_extension};
+
+pub const PARSER_VERSION: &str = "code-java-v1";
+
+/// Java AST extractor. Per-unit blocks via tree-sitter-java 0.23
+/// (`LANGUAGE: LanguageFn`) parsed by tree-sitter 0.26.
+pub struct JavaAstExtractor;
+
+impl JavaAstExtractor {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Default for JavaAstExtractor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Extractor for JavaAstExtractor {
+    fn supports(&self, m: &MediaType) -> bool {
+        matches!(m, MediaType::Code(l) if l == "java")
+    }
+
+    fn parser_version(&self) -> ParserVersion {
+        ParserVersion(PARSER_VERSION.to_string())
+    }
+
+    fn extract(
+        &self,
+        ctx: &kebab_core::ExtractContext<'_>,
+        bytes: &[u8],
+    ) -> Result<CanonicalDocument> {
+        let asset = ctx.asset;
+        if !self.supports(&asset.media_type) {
+            anyhow::bail!(
+                "kebab-parse-code: unsupported media_type for JavaAstExtractor: {:?}",
+                asset.media_type
+            );
+        }
+
+        let parser_version = self.parser_version();
+        let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, &parser_version);
+
+        let source = String::from_utf8(bytes.to_vec())
+            .map_err(|e| anyhow::anyhow!("kebab-parse-code: Java source is not valid UTF-8: {e}"))?;
+
+        let blocks = build_blocks(&source, &doc_id)?;
+        let unit_count = blocks.len() as u32;
+
+        let now = OffsetDateTime::now_utc();
+        let mut events: Vec<ProvenanceEvent> = Vec::with_capacity(2);
+        events.push(ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        });
+        events.push(ProvenanceEvent {
+            at: now,
+            agent: "kb-parse-code".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; unit_count={}",
+                parser_version.0, unit_count
+            )),
+        });
+
+        let title = {
+            let fname = filename_from_workspace_path(&asset.workspace_path.0);
+            strip_extension(&fname)
+        };
+
+        // Resolve the file's absolute path for repo detection. If the
+        // source URI carries a relative path, anchor it at the workspace
+        // root so the `.git/` walk-up starts from the right place.
+        let abs_path = match &asset.source_uri {
+            kebab_core::SourceUri::File(p) => {
+                if p.is_absolute() {
+                    p.clone()
+                } else {
+                    ctx.workspace_root.join(p)
+                }
+            }
+            kebab_core::SourceUri::Kb(_) => ctx.workspace_root.to_path_buf(),
+        };
+        let (repo, git_branch, git_commit) = match crate::repo::detect_repo(&abs_path) {
+            Some(r) => (Some(r.name), r.branch, r.commit),
+            None => (None, None, None),
+        };
+
+        let metadata = Metadata {
+            aliases: Vec::new(),
+            tags: Vec::new(),
+            created_at: asset.discovered_at,
+            updated_at: asset.discovered_at,
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Map::new(),
+            repo,
+            git_branch,
+            git_commit,
+            code_lang: Some("java".to_string()),
+        };
+
+        tracing::debug!(
+            target: "kebab-parse-code",
+            "extracted Java doc_id={} workspace_path={} units={}",
+            doc_id.0,
+            asset.workspace_path.0,
+            unit_count
+        );
+
+        Ok(CanonicalDocument {
+            doc_id,
+            source_asset_id: asset.asset_id.clone(),
+            workspace_path: asset.workspace_path.clone(),
+            title,
+            lang: Lang("und".to_string()),
+            blocks,
+            metadata,
+            provenance: Provenance { events },
+            parser_version,
+            schema_version: 1,
+            doc_version: 1,
+            last_chunker_version: None,
+            last_embedding_version: None,
+        })
+    }
+}
+
+/// p10-1C-JK: extract `package` declaration text from a tree-sitter-java
+/// `program`. Returns `None` if no `package_declaration` (default-package
+/// Java file). The package_declaration's named children are either a
+/// single `identifier` (single-segment package, rare) or a
+/// `scoped_identifier` (dotted, common). Per design §3.4 Java row.
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_declaration" {
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "scoped_identifier" || sub.kind() == "identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+
+/// Walk preceding `line_comment` / `block_comment` siblings to extend
+/// the unit's line range upward, folding leading Javadoc / line
+/// comments into the unit. Annotations live INSIDE `modifiers` on the
+/// declaration node itself, so their lines are already inside
+/// `n.start_position()` — no separate unwrap arm is needed for them.
+fn unit_start(n: &tree_sitter::Node) -> u32 {
+    let mut start = n.start_position().row as u32 + 1;
+    let mut prev = n.prev_sibling();
+    while let Some(p) = prev {
+        let k = p.kind();
+        if k == "line_comment" || k == "block_comment" {
+            start = p.start_position().row as u32 + 1;
+            prev = p.prev_sibling();
+        } else {
+            break;
+        }
+    }
+    start
+}
+
+fn node_name_text<'a>(n: &tree_sitter::Node, src: &'a str) -> Option<&'a str> {
+    n.child_by_field_name("name")
+        .map(|c| &src[c.start_byte()..c.end_byte()])
+}
+
+fn build_blocks(
+    source: &str,
+    doc_id: &kebab_core::DocumentId,
+) -> anyhow::Result<Vec<kebab_core::Block>> {
+    let mut parser = tree_sitter::Parser::new();
+    parser
+        .set_language(&tree_sitter_java::LANGUAGE.into())
+        .map_err(|e| anyhow::anyhow!("set tree-sitter-java language: {e}"))?;
+    let tree = parser
+        .parse(source.as_bytes(), None)
+        .ok_or_else(|| anyhow::anyhow!("tree-sitter failed to parse Java source"))?;
+    let lines: Vec<&str> = source.split('\n').collect();
+
+    let root = tree.root_node();
+    let mod_prefix = extract_package(root, source).unwrap_or_else(|| "<unknown>".to_string());
+
+    // units: (symbol, line_start, line_end, is_real_semantic_unit).
+    // Glue groups are pushed with a sentinel symbol + is_real=false so a
+    // post-pass can decide `<module>` vs `<top-level>` (1B/1C-Go pattern).
+    let mut units: Vec<(String, u32, u32, bool)> = Vec::new();
+    // (is_import 0/1, s, e). `is_import` flags `import_declaration` —
+    // used by the glue flush to pick `<module>` vs `<top-level>`
+    // provisional label.
+    let mut glue: Vec<(usize, u32, u32)> = Vec::new();
+
+    walk_top(root, source, &mod_prefix, &mut units, &mut glue);
+
+    // `<module>` is correct only when the file produced no real unit.
+    // Otherwise the import-only group becomes `<top-level>` (same
+    // post-pass as 1B / 1C-Go).
+    let has_real_unit = units.iter().any(|(_, _, _, is_real)| *is_real);
+    if has_real_unit {
+        for (sym, _, _, is_real) in units.iter_mut() {
+            if !*is_real && sym.ends_with("<module>") {
+                let pre = &sym[..sym.len() - "<module>".len()];
+                *sym = format!("{pre}<top-level>");
+            }
+        }
+    }
+
+    let total_lines = lines.len() as u32;
+    let mut blocks = Vec::with_capacity(units.len());
+    for (ordinal, (symbol, ls, le, _is_real)) in units.into_iter().enumerate() {
+        let line_start = ls.max(1);
+        let line_end = le.min(total_lines.max(1));
+        let span = SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol: Some(symbol),
+            lang: Some("java".to_string()),
+        };
+        let block_id = id_for_block(doc_id, "code", &[], ordinal as u32, &span);
+        let code = lines[(line_start as usize - 1)..=(line_end as usize - 1)].join("\n");
+        blocks.push(Block::Code(CodeBlock {
+            common: CommonBlock {
+                block_id,
+                heading_path: Vec::new(),
+                source_span: span,
+            },
+            lang: Some("java".to_string()),
+            code,
+        }));
+    }
+    Ok(blocks)
+}
+
+/// Walk the file's top-level children — `program` named children:
+/// `package_declaration` (handled by `extract_package`), `import_declaration`
+/// (glue), and the five type declarations (`class` / `interface` /
+/// `enum` / `record` / `annotation_type`). Type-declaration bodies
+/// are recursed via [`walk_body`] with the type name pushed onto
+/// `mod_path` (1B Python pattern). Enum bodies are NOT recursed
+/// (1차 cut — see module-level doc).
+fn walk_top(
+    node: tree_sitter::Node,
+    src: &str,
+    mod_prefix: &str,
+    units: &mut Vec<(String, u32, u32, bool)>,
+    glue: &mut Vec<(usize, u32, u32)>,
+) {
+    let mod_path: &[String] = &[];
+    let mut cur = node.walk();
+    for child in node.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+        match child.kind() {
+            "class_declaration"
+            | "interface_declaration"
+            | "record_declaration" => {
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                    if let Some(body) = child.child_by_field_name("body") {
+                        let np: Vec<String> = vec![name.to_string()];
+                        walk_body(body, src, mod_prefix, &np, units);
+                    }
+                }
+            }
+            "enum_declaration" => {
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                    // Enum body NOT recursed for 1차 — enum constants are
+                    // not emitted as units, and method declarations inside
+                    // enum bodies (rare) live under `enum_body_declarations`
+                    // not `class_body`. Skip per design §3.4 1차 scope.
+                }
+            }
+            "annotation_type_declaration" => {
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "import_declaration" => {
+                glue.push((1, s, e));
+            }
+            // package_declaration is handled by `extract_package`; no
+            // glue entry — it's structural metadata, not a unit.
+            _ => {}
+        }
+    }
+    flush_glue(glue, units, mod_prefix, mod_path);
+}
+
+/// Walk a `class_body` / `interface_body` (or record's `class_body`).
+/// Emits one unit per method / constructor, and recurses into nested
+/// type declarations. Field declarations are NOT emitted (would
+/// explode unit count). `compact_constructor_declaration` (records)
+/// is handled the same as `constructor_declaration`.
+///
+/// No `glue` parameter: Java does not have imports inside type
+/// bodies — they only appear at file top level, handled by
+/// [`walk_top`].
+fn walk_body(
+    body: tree_sitter::Node,
+    src: &str,
+    mod_prefix: &str,
+    mod_path: &[String],
+    units: &mut Vec<(String, u32, u32, bool)>,
+) {
+    let mut cur = body.walk();
+    for child in body.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+        match child.kind() {
+            "method_declaration"
+            | "constructor_declaration"
+            | "compact_constructor_declaration" => {
+                // Constructor: name field equals the class name. Per
+                // design §3.4 Java convention, symbol is
+                // `<pkg>.<mod_path>.<ClassName>` with the constructor
+                // name (== class name) as the trailing segment. This
+                // means the symbol duplicates the class name (e.g.
+                // `com.x.Foo.Foo`), which is the documented convention.
+                if let Some(name) = node_name_text(&child, src) {
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "class_declaration"
+            | "interface_declaration"
+            | "record_declaration"
+            | "enum_declaration"
+            | "annotation_type_declaration" => {
+                // Nested type — emit unit, then recurse into its body
+                // (skipped for enum + annotation_type per 1차 scope).
+                let name = match node_name_text(&child, src) {
+                    Some(n) => n,
+                    None => continue,
+                };
+                let sym = join_symbol(mod_prefix, mod_path, name);
+                units.push((sym, s, e, true));
+                if child.kind() != "enum_declaration"
+                    && child.kind() != "annotation_type_declaration"
+                {
+                    if let Some(inner_body) = child.child_by_field_name("body") {
+                        let mut np = mod_path.to_vec();
+                        np.push(name.to_string());
+                        walk_body(inner_body, src, mod_prefix, &np, units);
+                    }
+                }
+            }
+            // field_declaration, static_initializer, block: NOT emitted.
+            _ => {}
+        }
+    }
+}
+
+fn flush_glue(
+    glue: &mut Vec<(usize, u32, u32)>,
+    units: &mut Vec<(String, u32, u32, bool)>,
+    mod_prefix: &str,
+    mod_path: &[String],
+) {
+    if glue.is_empty() {
+        return;
+    }
+    let s = glue.iter().map(|(_, a, _)| *a).min().unwrap();
+    let e = glue.iter().map(|(_, _, b)| *b).max().unwrap();
+    // Provisional label: `<module>` only if the group is exclusively
+    // imports (1A's `only_mod_decls` analog). The post-pass demotes any
+    // `<module>` to `<top-level>` if the file produced any real unit.
+    let only_imports = glue.iter().all(|(is_import, _, _)| *is_import == 1);
+    let label = if only_imports { "<module>" } else { "<top-level>" };
+    units.push((join_symbol(mod_prefix, mod_path, label), s, e, false));
+    glue.clear();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn extract_fixture() -> kebab_core::CanonicalDocument {
+        let bytes = std::fs::read(concat!(
+            env!("CARGO_MANIFEST_DIR"),
+            "/tests/fixtures/sample.java"
+        ))
+        .unwrap();
+        let asset =
+            crate::rust::tests_support::fixed_code_asset("crates/x/src/sample.java", "java");
+        let cfg = kebab_core::ExtractConfig::default();
+        let root = std::path::PathBuf::from("/tmp");
+        let ctx = kebab_core::ExtractContext {
+            asset: &asset,
+            workspace_root: &root,
+            config: &cfg,
+        };
+        JavaAstExtractor::new().extract(&ctx, &bytes).unwrap()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_java() {
+        let e = JavaAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("java".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn java_units_match_design_3_4_symbols() {
+        let doc = extract_fixture();
+        let mut syms: Vec<String> = doc
+            .blocks
+            .iter()
+            .filter_map(|b| match b {
+                Block::Code(c) => match &c.common.source_span {
+                    SourceSpan::Code { symbol, lang, .. } => {
+                        assert_eq!(lang.as_deref(), Some("java"));
+                        symbol.clone()
+                    }
+                    _ => None,
+                },
+                _ => None,
+            })
+            .collect();
+        syms.sort();
+        // package extracted from source = com.kebab.chunk
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker"),
+            "got {syms:?}"
+        );
+        // constructor — Java convention is class-name-as-method-name
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.MdHeadingV1Chunker"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.chunkDoc"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.getName"),
+            "got {syms:?}"
+        );
+        // static nested class
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder.withName"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder.build"),
+            "got {syms:?}"
+        );
+        // package-private interface + enum
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Stringer"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Mode"),
+            "got {syms:?}"
+        );
+        // import grouped as <top-level>
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.<top-level>"),
+            "got {syms:?}"
+        );
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let a = extract_fixture();
+        for _ in 0..50 {
+            assert_eq!(extract_fixture().blocks, a.blocks);
+        }
+    }
+}

crates/kebab-parse-code/src/kotlin.rs

@@ -0,0 +1,627 @@
+//! `kebab-parse-code::kotlin` — tree-sitter Kotlin AST extractor (P10-1C-JK Task G).
+//!
+//! Implements [`kebab_core::Extractor`] for [`MediaType::Code("kotlin")`].
+//! Mirrors the Java extractor (JVM family, source-side `package` extraction +
+//! class-nesting) with Kotlin-specific adjustments:
+//!
+//! * Root is `source_file` (not `program`).
+//! * `package_header` carries a single `qualified_identifier` child whose
+//!   slice text IS the dotted package path — never a bare `identifier`
+//!   sub-form for the package (the grammar always wraps a single segment
+//!   in `qualified_identifier` too).
+//! * `class_declaration` covers `class`, `data class`, `sealed class`,
+//!   `enum class`, AND `interface` — Kotlin uses ONE node kind with a
+//!   `modifiers` child rather than separate `interface_declaration` /
+//!   `enum_declaration` nodes (verified via tree-sitter-kotlin-ng
+//!   `node-types.json`).
+//! * The body child of `class_declaration` is either `class_body` (normal
+//!   classes / interfaces) OR `enum_class_body` (enum class). Neither
+//!   carries a `body` field name, so it is matched by kind, not by
+//!   `child_by_field_name("body")`.
+//! * `companion_object` is a SEPARATE node kind (not `object_declaration`
+//!   with a modifier). Its `name` field is OPTIONAL — when omitted (the
+//!   common case `companion object { ... }`) the symbol uses the
+//!   implicit Kotlin convention name `Companion`.
+//! * `object_declaration` (named singleton) carries a `name` field and a
+//!   `class_body` child.
+//! * `function_declaration` may appear at top level (Kotlin top-level
+//!   function) AND inside `class_body` — same node kind, the
+//!   `mod_path` state distinguishes the two emit forms.
+//!
+//! Enum bodies (`enum_class_body`) are NOT recursed for the 1차 cut —
+//! `enum_entry` declarations are not emitted as units, matching the
+//! Java extractor's enum policy (design §3.4 1차 scope).
+//!
+//! Per design §3.4 / §9.1 / §9 versioning.
+
+use anyhow::Result;
+use kebab_core::{
+    Block, CanonicalDocument, CodeBlock, CommonBlock, Extractor, Lang, MediaType, Metadata,
+    ParserVersion, Provenance, ProvenanceEvent, ProvenanceKind, SourceSpan, SourceType, TrustLevel,
+    id_for_block, id_for_doc,
+};
+use serde_json::Map;
+use time::OffsetDateTime;
+
+use crate::scaffold::{filename_from_workspace_path, join_symbol, strip_extension};
+
+pub const PARSER_VERSION: &str = "code-kotlin-v1";
+
+/// Kotlin AST extractor. Per-unit blocks via tree-sitter-kotlin-ng 1.1
+/// (`LANGUAGE: LanguageFn`) parsed by tree-sitter 0.26.
+pub struct KotlinAstExtractor;
+
+impl KotlinAstExtractor {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Default for KotlinAstExtractor {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Extractor for KotlinAstExtractor {
+    fn supports(&self, m: &MediaType) -> bool {
+        matches!(m, MediaType::Code(l) if l == "kotlin")
+    }
+
+    fn parser_version(&self) -> ParserVersion {
+        ParserVersion(PARSER_VERSION.to_string())
+    }
+
+    fn extract(
+        &self,
+        ctx: &kebab_core::ExtractContext<'_>,
+        bytes: &[u8],
+    ) -> Result<CanonicalDocument> {
+        let asset = ctx.asset;
+        if !self.supports(&asset.media_type) {
+            anyhow::bail!(
+                "kebab-parse-code: unsupported media_type for KotlinAstExtractor: {:?}",
+                asset.media_type
+            );
+        }
+
+        let parser_version = self.parser_version();
+        let doc_id = id_for_doc(&asset.workspace_path, &asset.asset_id, &parser_version);
+
+        let source = String::from_utf8(bytes.to_vec()).map_err(|e| {
+            anyhow::anyhow!("kebab-parse-code: Kotlin source is not valid UTF-8: {e}")
+        })?;
+
+        let blocks = build_blocks(&source, &doc_id)?;
+        let unit_count = blocks.len() as u32;
+
+        let now = OffsetDateTime::now_utc();
+        let mut events: Vec<ProvenanceEvent> = Vec::with_capacity(2);
+        events.push(ProvenanceEvent {
+            at: asset.discovered_at,
+            agent: "kb-source-fs".to_string(),
+            kind: ProvenanceKind::Discovered,
+            note: None,
+        });
+        events.push(ProvenanceEvent {
+            at: now,
+            agent: "kb-parse-code".to_string(),
+            kind: ProvenanceKind::Parsed,
+            note: Some(format!(
+                "parser_version={}; unit_count={}",
+                parser_version.0, unit_count
+            )),
+        });
+
+        let title = {
+            let fname = filename_from_workspace_path(&asset.workspace_path.0);
+            strip_extension(&fname)
+        };
+
+        // Resolve the file's absolute path for repo detection. If the
+        // source URI carries a relative path, anchor it at the workspace
+        // root so the `.git/` walk-up starts from the right place.
+        let abs_path = match &asset.source_uri {
+            kebab_core::SourceUri::File(p) => {
+                if p.is_absolute() {
+                    p.clone()
+                } else {
+                    ctx.workspace_root.join(p)
+                }
+            }
+            kebab_core::SourceUri::Kb(_) => ctx.workspace_root.to_path_buf(),
+        };
+        let (repo, git_branch, git_commit) = match crate::repo::detect_repo(&abs_path) {
+            Some(r) => (Some(r.name), r.branch, r.commit),
+            None => (None, None, None),
+        };
+
+        let metadata = Metadata {
+            aliases: Vec::new(),
+            tags: Vec::new(),
+            created_at: asset.discovered_at,
+            updated_at: asset.discovered_at,
+            source_type: SourceType::Note,
+            trust_level: TrustLevel::Primary,
+            user_id_alias: None,
+            user: Map::new(),
+            repo,
+            git_branch,
+            git_commit,
+            code_lang: Some("kotlin".to_string()),
+        };
+
+        tracing::debug!(
+            target: "kebab-parse-code",
+            "extracted Kotlin doc_id={} workspace_path={} units={}",
+            doc_id.0,
+            asset.workspace_path.0,
+            unit_count
+        );
+
+        Ok(CanonicalDocument {
+            doc_id,
+            source_asset_id: asset.asset_id.clone(),
+            workspace_path: asset.workspace_path.clone(),
+            title,
+            lang: Lang("und".to_string()),
+            blocks,
+            metadata,
+            provenance: Provenance { events },
+            parser_version,
+            schema_version: 1,
+            doc_version: 1,
+            last_chunker_version: None,
+            last_embedding_version: None,
+        })
+    }
+}
+
+/// p10-1C-JK: extract `package` declaration text from a tree-sitter-kotlin
+/// `source_file`. Returns `None` if no `package_header` (default-package
+/// Kotlin file). The package_header's single named child is a
+/// `qualified_identifier`; its slice text is the dotted path. Per design
+/// §3.4 Kotlin row.
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_header" {
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                let k = sub.kind();
+                if k == "qualified_identifier" || k == "identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+
+/// Walk preceding `line_comment` / `block_comment` siblings to extend
+/// the unit's line range upward, folding leading KDoc / line comments
+/// into the unit. Modifiers / annotations live INSIDE the declaration
+/// node itself, so their lines are already inside `n.start_position()`.
+fn unit_start(n: &tree_sitter::Node) -> u32 {
+    let mut start = n.start_position().row as u32 + 1;
+    let mut prev = n.prev_sibling();
+    while let Some(p) = prev {
+        let k = p.kind();
+        if k == "line_comment" || k == "block_comment" {
+            start = p.start_position().row as u32 + 1;
+            prev = p.prev_sibling();
+        } else {
+            break;
+        }
+    }
+    start
+}
+
+fn node_name_text<'a>(n: &tree_sitter::Node, src: &'a str) -> Option<&'a str> {
+    n.child_by_field_name("name")
+        .map(|c| &src[c.start_byte()..c.end_byte()])
+}
+
+/// Find the first child of a node with one of the given kinds. Used to
+/// locate `class_body` / `enum_class_body` on `class_declaration` since
+/// the kotlin grammar attaches them without a `body` field name.
+fn first_child_of_kinds<'a>(
+    n: &tree_sitter::Node<'a>,
+    kinds: &[&str],
+) -> Option<tree_sitter::Node<'a>> {
+    let mut cur = n.walk();
+    n.named_children(&mut cur)
+        .find(|child| kinds.contains(&child.kind()))
+}
+
+/// `true` iff a `class_declaration` carries the `enum` class modifier.
+/// Detected by walking `modifiers` → `class_modifier` and checking the
+/// child text. The grammar exposes "enum" / "sealed" / "data" /
+/// "annotation" / "inner" as named `class_modifier` children of
+/// `modifiers`. We only need to know about "enum" to decide whether to
+/// look for `class_body` or `enum_class_body` and whether to skip body
+/// recursion.
+fn class_decl_is_enum(n: &tree_sitter::Node, src: &str) -> bool {
+    let mut cur = n.walk();
+    for child in n.named_children(&mut cur) {
+        if child.kind() == "modifiers" {
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "class_modifier" {
+                    let text = &src[sub.start_byte()..sub.end_byte()];
+                    if text == "enum" {
+                        return true;
+                    }
+                }
+            }
+        }
+    }
+    false
+}
+
+fn build_blocks(
+    source: &str,
+    doc_id: &kebab_core::DocumentId,
+) -> anyhow::Result<Vec<kebab_core::Block>> {
+    let mut parser = tree_sitter::Parser::new();
+    parser
+        .set_language(&tree_sitter_kotlin_ng::LANGUAGE.into())
+        .map_err(|e| anyhow::anyhow!("set tree-sitter-kotlin-ng language: {e}"))?;
+    let tree = parser
+        .parse(source.as_bytes(), None)
+        .ok_or_else(|| anyhow::anyhow!("tree-sitter failed to parse Kotlin source"))?;
+    let lines: Vec<&str> = source.split('\n').collect();
+
+    let root = tree.root_node();
+    let mod_prefix = extract_package(root, source).unwrap_or_else(|| "<unknown>".to_string());
+
+    // units: (symbol, line_start, line_end, is_real_semantic_unit).
+    // Glue groups are pushed with a sentinel symbol + is_real=false so a
+    // post-pass can decide `<module>` vs `<top-level>` (JVM family pattern).
+    let mut units: Vec<(String, u32, u32, bool)> = Vec::new();
+    // (is_import 0/1, s, e). `is_import` flags `import` — used by the
+    // glue flush to pick `<module>` vs `<top-level>` provisional label.
+    let mut glue: Vec<(usize, u32, u32)> = Vec::new();
+
+    walk_top(root, source, &mod_prefix, &mut units, &mut glue);
+
+    // `<module>` is correct only when the file produced no real unit.
+    // Otherwise the import-only group becomes `<top-level>` (same
+    // post-pass as 1B / 1C-Go / Java).
+    let has_real_unit = units.iter().any(|(_, _, _, is_real)| *is_real);
+    if has_real_unit {
+        for (sym, _, _, is_real) in units.iter_mut() {
+            if !*is_real && sym.ends_with("<module>") {
+                let pre = &sym[..sym.len() - "<module>".len()];
+                *sym = format!("{pre}<top-level>");
+            }
+        }
+    }
+
+    let total_lines = lines.len() as u32;
+    let mut blocks = Vec::with_capacity(units.len());
+    for (ordinal, (symbol, ls, le, _is_real)) in units.into_iter().enumerate() {
+        let line_start = ls.max(1);
+        let line_end = le.min(total_lines.max(1));
+        let span = SourceSpan::Code {
+            line_start,
+            line_end,
+            symbol: Some(symbol),
+            lang: Some("kotlin".to_string()),
+        };
+        let block_id = id_for_block(doc_id, "code", &[], ordinal as u32, &span);
+        let code = lines[(line_start as usize - 1)..=(line_end as usize - 1)].join("\n");
+        blocks.push(Block::Code(CodeBlock {
+            common: CommonBlock {
+                block_id,
+                heading_path: Vec::new(),
+                source_span: span,
+            },
+            lang: Some("kotlin".to_string()),
+            code,
+        }));
+    }
+    Ok(blocks)
+}
+
+/// Walk the file's top-level children — `source_file` named children:
+/// `package_header` (handled by `extract_package`), `import` (glue),
+/// `class_declaration` (class / interface / enum class), `object_declaration`,
+/// `function_declaration` (top-level), `property_declaration` (top-level),
+/// `type_alias` (currently treated as glue). Class / object bodies are
+/// recursed via [`walk_body`] with the type name pushed onto `mod_path`
+/// (JVM family pattern). Enum bodies are NOT recursed (1차 cut).
+fn walk_top(
+    node: tree_sitter::Node,
+    src: &str,
+    mod_prefix: &str,
+    units: &mut Vec<(String, u32, u32, bool)>,
+    glue: &mut Vec<(usize, u32, u32)>,
+) {
+    let mod_path: &[String] = &[];
+    let mut cur = node.walk();
+    for child in node.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+        match child.kind() {
+            "class_declaration" => {
+                // Covers class / data class / sealed class / interface /
+                // enum class — single grammar node, the modifiers child
+                // distinguishes them. The body is `class_body` for
+                // non-enum and `enum_class_body` for enum class; both
+                // attach without a `body` field name.
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                    let is_enum = class_decl_is_enum(&child, src);
+                    if !is_enum {
+                        if let Some(body) = first_child_of_kinds(&child, &["class_body"]) {
+                            let np: Vec<String> = vec![name.to_string()];
+                            walk_body(body, src, mod_prefix, &np, units);
+                        }
+                    }
+                    // enum_class_body NOT recursed — enum constants are
+                    // not emitted as units (1차 scope, matches Java).
+                }
+            }
+            "object_declaration" => {
+                // Singleton object — name field is required by the grammar.
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                    if let Some(body) = first_child_of_kinds(&child, &["class_body"]) {
+                        let np: Vec<String> = vec![name.to_string()];
+                        walk_body(body, src, mod_prefix, &np, units);
+                    }
+                }
+            }
+            "function_declaration" => {
+                // Top-level Kotlin function (unlike Java).
+                if let Some(name) = node_name_text(&child, src) {
+                    glue.retain(|(_, gs, _)| *gs < s);
+                    flush_glue(glue, units, mod_prefix, mod_path);
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "import" => {
+                glue.push((1, s, e));
+            }
+            // `property_declaration` (top-level val/var) and `type_alias`
+            // are not emitted as standalone units in the 1차 cut — they
+            // glue into the import group instead. `package_header` is
+            // handled by `extract_package` (structural metadata, not a
+            // unit).
+            _ => {}
+        }
+    }
+    flush_glue(glue, units, mod_prefix, mod_path);
+}
+
+/// Walk a `class_body` (or object's `class_body`). Emits one unit per
+/// method / secondary constructor and recurses into nested type
+/// declarations + companion objects. Property declarations are NOT
+/// emitted (would explode unit count, parallel to Java field policy).
+///
+/// `companion_object` carries an optional `name` field — when omitted
+/// (the common case `companion object { ... }`) the implicit Kotlin
+/// convention name `Companion` is used.
+///
+/// No `glue` parameter: Kotlin imports are file-level only.
+fn walk_body(
+    body: tree_sitter::Node,
+    src: &str,
+    mod_prefix: &str,
+    mod_path: &[String],
+    units: &mut Vec<(String, u32, u32, bool)>,
+) {
+    let mut cur = body.walk();
+    for child in body.named_children(&mut cur) {
+        let s = unit_start(&child);
+        let e = child.end_position().row as u32 + 1;
+        match child.kind() {
+            "function_declaration" => {
+                if let Some(name) = node_name_text(&child, src) {
+                    let sym = join_symbol(mod_prefix, mod_path, name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "secondary_constructor" => {
+                // Kotlin secondary constructor — no `name` field on the
+                // grammar node. Per design §3.4 (Java JVM convention) the
+                // symbol uses the enclosing class name as the trailing
+                // segment (matches the Java `<pkg>.<...>.<Class>.<Class>`
+                // duplication for constructors).
+                if let Some(class_name) = mod_path.last() {
+                    let sym = join_symbol(mod_prefix, mod_path, class_name);
+                    units.push((sym, s, e, true));
+                }
+            }
+            "companion_object" => {
+                // Companion's name field is OPTIONAL — fall back to the
+                // Kotlin implicit name `Companion`.
+                let name: &str = node_name_text(&child, src).unwrap_or("Companion");
+                let sym = join_symbol(mod_prefix, mod_path, name);
+                units.push((sym, s, e, true));
+                if let Some(inner_body) = first_child_of_kinds(&child, &["class_body"]) {
+                    let mut np = mod_path.to_vec();
+                    np.push(name.to_string());
+                    walk_body(inner_body, src, mod_prefix, &np, units);
+                }
+            }
+            "class_declaration" => {
+                let name = match node_name_text(&child, src) {
+                    Some(n) => n,
+                    None => continue,
+                };
+                let sym = join_symbol(mod_prefix, mod_path, name);
+                units.push((sym, s, e, true));
+                let is_enum = class_decl_is_enum(&child, src);
+                if !is_enum {
+                    if let Some(inner_body) = first_child_of_kinds(&child, &["class_body"]) {
+                        let mut np = mod_path.to_vec();
+                        np.push(name.to_string());
+                        walk_body(inner_body, src, mod_prefix, &np, units);
+                    }
+                }
+            }
+            "object_declaration" => {
+                let name = match node_name_text(&child, src) {
+                    Some(n) => n,
+                    None => continue,
+                };
+                let sym = join_symbol(mod_prefix, mod_path, name);
+                units.push((sym, s, e, true));
+                if let Some(inner_body) = first_child_of_kinds(&child, &["class_body"]) {
+                    let mut np = mod_path.to_vec();
+                    np.push(name.to_string());
+                    walk_body(inner_body, src, mod_prefix, &np, units);
+                }
+            }
+            // property_declaration, anonymous_initializer: NOT emitted.
+            _ => {}
+        }
+    }
+}
+
+fn flush_glue(
+    glue: &mut Vec<(usize, u32, u32)>,
+    units: &mut Vec<(String, u32, u32, bool)>,
+    mod_prefix: &str,
+    mod_path: &[String],
+) {
+    if glue.is_empty() {
+        return;
+    }
+    let s = glue.iter().map(|(_, a, _)| *a).min().unwrap();
+    let e = glue.iter().map(|(_, _, b)| *b).max().unwrap();
+    // Provisional label: `<module>` only if the group is exclusively
+    // imports. The post-pass demotes any `<module>` to `<top-level>` if
+    // the file produced any real unit.
+    let only_imports = glue.iter().all(|(is_import, _, _)| *is_import == 1);
+    let label = if only_imports { "<module>" } else { "<top-level>" };
+    units.push((join_symbol(mod_prefix, mod_path, label), s, e, false));
+    glue.clear();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn extract_fixture() -> kebab_core::CanonicalDocument {
+        let bytes = std::fs::read(concat!(
+            env!("CARGO_MANIFEST_DIR"),
+            "/tests/fixtures/sample.kt"
+        ))
+        .unwrap();
+        let asset =
+            crate::rust::tests_support::fixed_code_asset("crates/x/src/sample.kt", "kotlin");
+        let cfg = kebab_core::ExtractConfig::default();
+        let root = std::path::PathBuf::from("/tmp");
+        let ctx = kebab_core::ExtractContext {
+            asset: &asset,
+            workspace_root: &root,
+            config: &cfg,
+        };
+        KotlinAstExtractor::new().extract(&ctx, &bytes).unwrap()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_kotlin() {
+        let e = KotlinAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("kotlin".into())));
+        assert!(!e.supports(&MediaType::Code("java".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn kotlin_units_match_design_3_4_symbols() {
+        let doc = extract_fixture();
+        let mut syms: Vec<String> = doc
+            .blocks
+            .iter()
+            .filter_map(|b| match b {
+                Block::Code(c) => match &c.common.source_span {
+                    SourceSpan::Code { symbol, lang, .. } => {
+                        assert_eq!(lang.as_deref(), Some("kotlin"));
+                        symbol.clone()
+                    }
+                    _ => None,
+                },
+                _ => None,
+            })
+            .collect();
+        syms.sort();
+        // package extracted from source = com.kebab.chunk
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.chunkDoc"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.getName"),
+            "got {syms:?}"
+        );
+        // Implicit companion object name = Companion (grammar leaves the
+        // name field unset; the extractor fills it in).
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Companion"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter()
+                .any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Companion.withName"),
+            "got {syms:?}"
+        );
+        // interface — also via class_declaration in the grammar
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Stringer"),
+            "got {syms:?}"
+        );
+        // enum class — also via class_declaration; body NOT recursed
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Mode"),
+            "got {syms:?}"
+        );
+        // Kotlin top-level fn — unlike Java
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.freeFunction"),
+            "got {syms:?}"
+        );
+        // Singleton object + its method
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Singleton"),
+            "got {syms:?}"
+        );
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.Singleton.ping"),
+            "got {syms:?}"
+        );
+        // import grouped as <top-level>
+        assert!(
+            syms.iter().any(|s| s == "com.kebab.chunk.<top-level>"),
+            "got {syms:?}"
+        );
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let a = extract_fixture();
+        for _ in 0..50 {
+            assert_eq!(extract_fixture().blocks, a.blocks);
+        }
+    }
+}

crates/kebab-parse-code/src/lang.rs

@@ -10,33 +10,57 @@ use std::path::Path;
 /// `None` if the extension / filename is not recognized.
 ///
 /// Matching priority:
-///   1. exact filename match (e.g. `Dockerfile`, `Makefile`)
-///   2. lowercase extension match
+///   1. Tier 1 basename exact match (e.g. `Dockerfile`, `Makefile`)
+///   2. Tier 2 basename match (e.g. `Cargo.toml`, `package.json`, `build.gradle`)
+///   3. Tier 2 `Dockerfile.*` prefix variant
+///   4. Tier 1 + Tier 2 extension fallback (lowercase)
 pub fn code_lang_for_path(path: &Path) -> Option<&'static str> {
     if let Some(name) = path.file_name().and_then(|n| n.to_str()) {
+        // Tier 1 basename exact match
         match name {
             "Dockerfile" => return Some("dockerfile"),
             "Makefile" | "GNUmakefile" => return Some("make"),
             _ => {}
         }
+
+        // Tier 2 basename match (configuration / manifest files)
+        match name {
+            "Cargo.toml" | "pyproject.toml" => return Some("toml"),
+            "package.json" | "tsconfig.json" => return Some("json"),
+            "go.mod" => return Some("go-mod"),
+            "pom.xml" => return Some("xml"),
+            "build.gradle" => return Some("groovy"),
+            _ => {}
+        }
+
+        // Tier 2: `Dockerfile.*` prefix variant (e.g. `Dockerfile.dev`, `Dockerfile.prod`)
+        if name.starts_with("Dockerfile.") && name.len() > "Dockerfile.".len() {
+            return Some("dockerfile");
+        }
     }
+
+    // Extension fallback (Tier 1 + Tier 2)
     let ext = path.extension()?.to_str()?.to_ascii_lowercase();
     match ext.as_str() {
+        // Tier 1 extensions
         "rs" => Some("rust"),
         "py" | "pyi" => Some("python"),
-        "ts" | "tsx" => Some("typescript"),
+        "ts" | "tsx" | "mts" | "cts" => Some("typescript"),
         "js" | "mjs" | "cjs" | "jsx" => Some("javascript"),
         "go" => Some("go"),
         "java" => Some("java"),
         "kt" | "kts" => Some("kotlin"),
         "c" | "h" => Some("c"),
         "cpp" | "cc" | "cxx" | "hpp" | "hh" | "hxx" => Some("cpp"),
+        "sh" | "bash" | "zsh" => Some("shell"),
+        "mk" => Some("make"),
+        // Tier 2 extensions
         "yaml" | "yml" => Some("yaml"),
         "toml" => Some("toml"),
         "json" => Some("json"),
-        "sh" | "bash" | "zsh" => Some("shell"),
-        "mk" => Some("make"),
+        "xml" => Some("xml"),
         "dockerfile" => Some("dockerfile"),
+        "gradle" => Some("groovy"),
         _ => None,
     }
 }
@@ -82,7 +106,7 @@ pub fn module_path_for_python(workspace_path: &str) -> String {
 /// (no slash replacement, no source-root strip). See plan §Task C.
 pub fn module_path_for_tsjs(workspace_path: &str) -> String {
     let p = workspace_path;
-    for ext in [".tsx", ".ts", ".jsx", ".mjs", ".cjs", ".js"] {
+    for ext in [".tsx", ".mts", ".cts", ".ts", ".jsx", ".mjs", ".cjs", ".js"] {
         if let Some(stripped) = p.strip_suffix(ext) {
             return stripped.to_string();
         }
@@ -110,7 +134,7 @@ mod tests {
 
     #[test]
     fn module_path_for_tsjs_keeps_slashes_and_strips_ext() {
-        for ext in ["ts", "tsx", "js", "jsx", "mjs", "cjs"] {
+        for ext in ["ts", "tsx", "mts", "cts", "js", "jsx", "mjs", "cjs"] {
             let p = format!("src/search/retriever/Retriever.{ext}");
             assert_eq!(module_path_for_tsjs(&p), "src/search/retriever/Retriever");
         }
@@ -118,4 +142,28 @@ mod tests {
         assert_eq!(module_path_for_tsjs("a/b/c.ts"),               "a/b/c");
         assert_eq!(module_path_for_tsjs("packages/x/src/Foo.ts"),  "packages/x/src/Foo");
     }
+
+    #[test]
+    fn tier2_basename_takes_precedence_over_extension() {
+        assert_eq!(code_lang_for_path(Path::new("Dockerfile")),         Some("dockerfile"));
+        assert_eq!(code_lang_for_path(Path::new("foo/Dockerfile.dev")), Some("dockerfile"));
+        assert_eq!(code_lang_for_path(Path::new("myapp.dockerfile")),   Some("dockerfile"));
+        assert_eq!(code_lang_for_path(Path::new("repo/Cargo.toml")),    Some("toml"));
+        assert_eq!(code_lang_for_path(Path::new("pyproject.toml")),     Some("toml"));
+        assert_eq!(code_lang_for_path(Path::new("repo/package.json")),  Some("json"));
+        assert_eq!(code_lang_for_path(Path::new("tsconfig.json")),      Some("json"));
+        assert_eq!(code_lang_for_path(Path::new("go.mod")),             Some("go-mod"));
+        assert_eq!(code_lang_for_path(Path::new("pom.xml")),            Some("xml"));
+        assert_eq!(code_lang_for_path(Path::new("build.gradle")),       Some("groovy"));
+    }
+
+    #[test]
+    fn tier2_extension_fallback() {
+        assert_eq!(code_lang_for_path(Path::new("k8s/deploy.yaml")),    Some("yaml"));
+        assert_eq!(code_lang_for_path(Path::new("k8s/deploy.yml")),     Some("yaml"));
+        assert_eq!(code_lang_for_path(Path::new("foo/bar.toml")),       Some("toml"));
+        assert_eq!(code_lang_for_path(Path::new("foo/bar.json")),       Some("json"));
+        assert_eq!(code_lang_for_path(Path::new("foo/bar.xml")),        Some("xml"));
+        assert_eq!(code_lang_for_path(Path::new("foo/bar.gradle")),     Some("groovy"));
+    }
 }

crates/kebab-parse-code/src/lib.rs

@@ -13,7 +13,12 @@
 //! `kebab-parse-*` crates per design §8: must NOT depend on store / embed
 //! / llm / rag.
 
+pub mod c;
+pub mod cpp;
+pub mod go;
+pub mod java;
 pub mod javascript;
+pub mod kotlin;
 pub mod lang;
 pub mod python;
 pub mod repo;
@@ -22,7 +27,12 @@ pub(crate) mod scaffold;
 pub mod skip;
 pub mod typescript;
 
+pub use c::{PARSER_VERSION as C_PARSER_VERSION, CAstExtractor};
+pub use cpp::{PARSER_VERSION as CPP_PARSER_VERSION, CppAstExtractor};
+pub use go::{PARSER_VERSION as GO_PARSER_VERSION, GoAstExtractor};
+pub use java::{PARSER_VERSION as JAVA_PARSER_VERSION, JavaAstExtractor};
 pub use javascript::{PARSER_VERSION as JS_PARSER_VERSION, JavascriptAstExtractor};
+pub use kotlin::{PARSER_VERSION as KOTLIN_PARSER_VERSION, KotlinAstExtractor};
 pub use lang::{code_lang_for_path, module_path_for_python, module_path_for_tsjs};
 pub use python::{PARSER_VERSION as PYTHON_PARSER_VERSION, PythonAstExtractor};
 pub use repo::{RepoMeta, detect_repo};

crates/kebab-parse-code/src/typescript.rs

@@ -173,8 +173,9 @@ impl Extractor for TypescriptAstExtractor {
 }
 
 /// Select the tree-sitter grammar based on the workspace path's
-/// extension. `.tsx` → TSX grammar; everything else (`.ts`, `.d.ts`,
-/// missing extension) → TypeScript grammar.
+/// extension. `.tsx` → TSX grammar; everything else (`.ts`, `.mts`,
+/// `.cts`, `.d.ts`, missing extension) → TypeScript grammar (the JSX-
+/// agnostic variants all share one grammar in tree-sitter-typescript 0.23).
 fn select_grammar(workspace_path: &str) -> tree_sitter::Language {
     if workspace_path.ends_with(".tsx") {
         tree_sitter_typescript::LANGUAGE_TSX.into()

crates/kebab-parse-code/tests/fixtures/sample.go

@@ -0,0 +1,34 @@
+// sample.go
+package chunk
+
+import (
+	"fmt"
+	"strings"
+)
+
+const Version = "v1"
+
+type MdHeadingV1Chunker struct {
+	Name string
+}
+
+// ChunkDoc returns a stub list of strings.
+func (m *MdHeadingV1Chunker) ChunkDoc(input string) []string {
+	return []string{m.Name}
+}
+
+func (m MdHeadingV1Chunker) Name2() string {
+	return m.Name
+}
+
+type Stringer interface {
+	String() string
+}
+
+func Free(x int) int {
+	return x + 1
+}
+
+func init() {
+	fmt.Println(strings.ToUpper("init"))
+}

crates/kebab-parse-code/tests/fixtures/sample.java

@@ -0,0 +1,36 @@
+// sample.java
+package com.kebab.chunk;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Heading-aware Markdown chunker.
+ */
+public class MdHeadingV1Chunker {
+    private final String name;
+
+    public MdHeadingV1Chunker(String name) {
+        this.name = name;
+    }
+
+    public List<String> chunkDoc(String input) {
+        return List.of(name, input);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public static class Builder {
+        private String name;
+        public Builder withName(String n) { this.name = n; return this; }
+        public MdHeadingV1Chunker build() { return new MdHeadingV1Chunker(name); }
+    }
+}
+
+interface Stringer {
+    String asString();
+}
+
+enum Mode { DEFAULT, FAST }

crates/kebab-parse-code/tests/fixtures/sample.kt

@@ -0,0 +1,29 @@
+// sample.kt
+package com.kebab.chunk
+
+import java.util.List
+
+/**
+ * Heading-aware Markdown chunker.
+ */
+class MdHeadingV1Chunker(val name: String) {
+    fun chunkDoc(input: String): List<String> = listOf(name, input)
+
+    fun getName(): String = name
+
+    companion object {
+        fun withName(n: String): MdHeadingV1Chunker = MdHeadingV1Chunker(n)
+    }
+}
+
+interface Stringer {
+    fun asString(): String
+}
+
+enum class Mode { DEFAULT, FAST }
+
+fun freeFunction(x: Int): Int = x + 1
+
+object Singleton {
+    fun ping(): String = "pong"
+}

crates/kebab-parse-code/tests/lang.rs

@@ -9,6 +9,8 @@ fn known_extensions_map_to_canonical_identifiers() {
         ("foo.pyi", Some("python")),
         ("foo.ts", Some("typescript")),
         ("foo.tsx", Some("typescript")),
+        ("foo.mts", Some("typescript")),  // ESM TS — same grammar
+        ("foo.cts", Some("typescript")),  // CommonJS TS — same grammar
         ("foo.js", Some("javascript")),
         ("foo.mjs", Some("javascript")),
         ("foo.cjs", Some("javascript")),

crates/kebab-source-fs/src/media.rs

@@ -12,6 +12,12 @@ use kebab_core::{AudioType, ImageType, MediaType};
 /// `MediaType::Image(_)` / `MediaType::Audio(_)`. Anything else (including
 /// missing extension) → `MediaType::Other(ext)`.
 pub(crate) fn media_type_for(path: &Path) -> MediaType {
+    // p10-2: code_lang_for_path is the single source of truth for code lang
+    // (design §3.5). Delegate before falling back to extension branches.
+    if let Some(lang) = kebab_parse_code::code_lang_for_path(path) {
+        return MediaType::Code(lang.to_string());
+    }
+
     let ext = path
         .extension()
         .and_then(|s| s.to_str())
@@ -19,7 +25,9 @@ pub(crate) fn media_type_for(path: &Path) -> MediaType {
         .unwrap_or_default();
 
     match ext.as_str() {
-        "md" => MediaType::Markdown,
+        // Markdown + MDX (markdown + JSX, treated as plain markdown — the
+        // JSX islands are folded into raw passthrough by the md parser).
+        "md" | "mdx" => MediaType::Markdown,
         "pdf" => MediaType::Pdf,
 
         "png" => MediaType::Image(ImageType::Png),
@@ -34,15 +42,6 @@ pub(crate) fn media_type_for(path: &Path) -> MediaType {
         "flac" => MediaType::Audio(AudioType::Flac),
         "ogg" => MediaType::Audio(AudioType::Ogg),
 
-        // p10-1A-2: Rust is the only code lang activated in 1A. Other
-        // recognized code langs stay Other until their phase (1B+).
-        "rs" => MediaType::Code("rust".to_string()),
-
-        // p10-1B: Python / TS / JS AST chunkers active.
-        "py" | "pyi"               => MediaType::Code("python".into()),
-        "ts" | "tsx"               => MediaType::Code("typescript".into()),
-        "js" | "mjs" | "cjs" | "jsx" => MediaType::Code("javascript".into()),
-
         // Empty string (no extension) and any other extension: bucket as
         // Other and let downstream extractors decide if they support it.
         _ => MediaType::Other(ext),
@@ -86,7 +85,8 @@ mod tests {
             media_type_for(Path::new("crates/kebab-core/src/lib.rs")),
             MediaType::Code("rust".to_string())
         );
-        assert_eq!(media_type_for(Path::new("Cargo.toml")), MediaType::Other("toml".to_string()));
+        // Cargo.toml is a Tier 2 code manifest (p10-2), handled by code_lang_for_path
+        assert_eq!(media_type_for(Path::new("Cargo.toml")), MediaType::Code("toml".to_string()));
     }
 
     #[test]
@@ -102,6 +102,32 @@ mod tests {
         assert_eq!(media_type_for(Path::new("a/b.rs")),    MediaType::Code("rust".into()));
     }
 
+    #[test]
+    fn ts_variants_mts_cts() {
+        // .mts / .cts are TypeScript ESM / CommonJS — same grammar as .ts.
+        assert_eq!(media_type_for(Path::new("a/b.mts")), MediaType::Code("typescript".into()));
+        assert_eq!(media_type_for(Path::new("a/b.cts")), MediaType::Code("typescript".into()));
+    }
+
+    #[test]
+    fn mdx_routes_to_markdown() {
+        // MDX is markdown with JSX islands; the md parser folds the JSX
+        // through as raw passthrough.
+        assert_eq!(media_type_for(Path::new("docs/page.mdx")), MediaType::Markdown);
+    }
+
+    #[test]
+    fn go_files_map_to_media_code_go() {
+        assert_eq!(media_type_for(Path::new("a/b.go")), MediaType::Code("go".into()));
+    }
+
+    #[test]
+    fn java_kotlin_files_map_to_media_code() {
+        assert_eq!(media_type_for(Path::new("a/b.java")), MediaType::Code("java".into()));
+        assert_eq!(media_type_for(Path::new("a/b.kt")), MediaType::Code("kotlin".into()));
+        assert_eq!(media_type_for(Path::new("a/b.kts")), MediaType::Code("kotlin".into()));
+    }
+
     #[test]
     fn unknown_and_missing_extension() {
         assert_eq!(
@@ -113,4 +139,14 @@ mod tests {
             MediaType::Other(String::new())
         );
     }
+
+    #[test]
+    fn tier2_files_map_to_media_code() {
+        assert_eq!(media_type_for(Path::new("a/deploy.yaml")), MediaType::Code("yaml".into()));
+        assert_eq!(media_type_for(Path::new("a/Dockerfile")), MediaType::Code("dockerfile".into()));
+        assert_eq!(media_type_for(Path::new("a/Cargo.toml")), MediaType::Code("toml".into()));
+        assert_eq!(media_type_for(Path::new("a/pom.xml")), MediaType::Code("xml".into()));
+        assert_eq!(media_type_for(Path::new("a/build.gradle")), MediaType::Code("groovy".into()));
+        assert_eq!(media_type_for(Path::new("a/go.mod")), MediaType::Code("go-mod".into()));
+    }
 }

crates/kebab-store-sqlite/snapshots/ingest_report.snapshot.json

@@ -56,5 +56,6 @@
   "skipped_kebabignore": 0,
   "skipped_size_exceeded": 0,
   "unchanged": 0,
+  "purged_deleted_files": 0,
   "updated": 1
 }

crates/kebab-store-sqlite/src/documents.rs

@@ -264,6 +264,28 @@ impl kebab_core::DocumentStore for SqliteStore {
         }))
     }
 
+    fn get_asset(
+        &self,
+        id: &kebab_core::AssetId,
+    ) -> Result<Option<kebab_core::RawAsset>> {
+        let conn = self.lock_conn();
+        let result = conn.query_row(
+            r#"SELECT
+                asset_id, source_uri, workspace_path, media_type,
+                byte_len, checksum, storage_kind, storage_path,
+                discovered_at
+            FROM assets
+            WHERE asset_id = ?"#,
+            rusqlite::params![id.0.as_str()],
+            asset_from_row,
+        );
+        match result {
+            Ok(asset) => Ok(Some(asset)),
+            Err(rusqlite::Error::QueryReturnedNoRows) => Ok(None),
+            Err(e) => Err(e.into()),
+        }
+    }
+
     fn get_asset_by_workspace_path(
         &self,
         path: &kebab_core::WorkspacePath,
@@ -286,6 +308,88 @@ impl kebab_core::DocumentStore for SqliteStore {
         }
     }
 
+    fn get_document_by_workspace_path(
+        &self,
+        path: &kebab_core::WorkspacePath,
+    ) -> Result<Option<kebab_core::CanonicalDocument>> {
+        let conn = self.lock_conn();
+        let row: Option<DocumentRow> = conn
+            .query_row(
+                "SELECT
+                    doc_id, asset_id, workspace_path, title, lang,
+                    source_type, trust_level, parser_version,
+                    doc_version, schema_version, metadata_json,
+                    provenance_json, created_at, updated_at,
+                    last_chunker_version, last_embedding_version
+                FROM documents WHERE workspace_path = ?",
+                params![path.0],
+                document_row_from_sql,
+            )
+            .map(Some)
+            .or_else(rows_optional)
+            .map_err(StoreError::from)?;
+        let Some(row) = row else { return Ok(None) };
+
+        let doc_id = kebab_core::DocumentId(row.doc_id.clone());
+        let mut blocks_stmt = conn
+            .prepare(
+                "SELECT payload_json FROM blocks
+                 WHERE doc_id = ? ORDER BY ordinal ASC",
+            )
+            .map_err(StoreError::from)?;
+        let block_rows = blocks_stmt
+            .query_map(params![row.doc_id], |r| {
+                let payload_json: String = r.get(0)?;
+                Ok(payload_json)
+            })
+            .map_err(StoreError::from)?;
+        let mut blocks: Vec<kebab_core::Block> = Vec::new();
+        for block_row in block_rows {
+            let payload_json = block_row.map_err(StoreError::from)?;
+            let block: kebab_core::Block = serde_json::from_str(&payload_json)
+                .context("deserialize block payload_json")?;
+            blocks.push(block);
+        }
+
+        let metadata: kebab_core::Metadata = serde_json::from_str(&row.metadata_json)
+            .context("deserialize metadata_json")?;
+        let provenance: kebab_core::Provenance =
+            serde_json::from_str(&row.provenance_json)
+                .context("deserialize provenance_json")?;
+
+        Ok(Some(kebab_core::CanonicalDocument {
+            doc_id,
+            source_asset_id: kebab_core::AssetId(row.asset_id),
+            workspace_path: kebab_core::WorkspacePath(row.workspace_path),
+            title: row.title.unwrap_or_default(),
+            lang: kebab_core::Lang(row.lang.unwrap_or_default()),
+            blocks,
+            metadata,
+            provenance,
+            parser_version: kebab_core::ParserVersion(row.parser_version),
+            schema_version: row.schema_version as u32,
+            doc_version: row.doc_version as u32,
+            last_chunker_version: row.last_chunker_version.map(kebab_core::ChunkerVersion),
+            last_embedding_version: row.last_embedding_version.map(kebab_core::EmbeddingVersion),
+        }))
+    }
+
+    fn all_workspace_paths(&self) -> Result<Vec<kebab_core::WorkspacePath>> {
+        let conn = self.lock_conn();
+        let mut stmt = conn
+            .prepare("SELECT workspace_path FROM documents")
+            .map_err(StoreError::from)?;
+        let rows = stmt
+            .query_map([], |r| r.get::<_, String>(0))
+            .map_err(StoreError::from)?;
+        let mut out = Vec::new();
+        for row in rows {
+            let path = row.map_err(StoreError::from)?;
+            out.push(kebab_core::WorkspacePath(path));
+        }
+        Ok(out)
+    }
+
     fn list_documents(
         &self,
         filter: &kebab_core::DocFilter,
@@ -550,7 +654,8 @@ fn rows_optional<T>(err: rusqlite::Error) -> rusqlite::Result<Option<T>> {
 
 /// Reconstruct a [`kebab_core::RawAsset`] from one `assets` row.
 /// Row mapper for `RawAsset`. Column names are self-documenting; the
-/// SELECT in [`DocumentStore::get_asset_by_workspace_path`] must include
+/// SELECTs in [`DocumentStore::get_asset`] and
+/// [`DocumentStore::get_asset_by_workspace_path`] must both include
 /// all nine columns by their schema names.
 fn asset_from_row(row: &rusqlite::Row<'_>) -> rusqlite::Result<kebab_core::RawAsset> {
     use std::path::PathBuf;

crates/kebab-store-sqlite/src/lib.rs

@@ -35,4 +35,4 @@ pub use error::StoreError;
 pub use eval::{EvalQueryResultRecord, EvalRunRecord, EvalRunRow};
 pub use fts::rebuild_chunks_fts;
 pub use jobs::IngestRunRow;
-pub use store::{CountSummary, NotIndexed, SqliteStore};
+pub use store::{CountSummary, NotIndexed, SqliteStore, purge_deleted_workspace_path};

crates/kebab-store-sqlite/src/store.rs

@@ -540,10 +540,132 @@ pub(crate) fn purge_orphan_at_workspace_path(
     Ok(())
 }
 
+/// Purge all stored data for a document whose on-disk file has been
+/// deleted (as opposed to content-changed, which is handled by
+/// `purge_orphan_at_workspace_path`).
+///
+/// Returns the `chunk_id`s that were associated with the document so
+/// the caller can issue a matching `VectorStore::delete_by_chunk_ids`
+/// on the LanceDB side.
+///
+/// Deletion order:
+/// 1. Collect chunk_ids (before cascade removes them).
+/// 2. DELETE the `documents` row → CASCADE clears `blocks`, `chunks`,
+///    `embedding_records`.
+/// 3. DELETE the `assets` row **only if no other document still
+///    references it** (twin-file protection — `assets` can be shared
+///    across identical-content files via the blake3 PK).
+/// 4. If the asset was `storage_kind = 'copied'`, best-effort delete
+///    the on-disk byte file at `storage_path`.
+///
+/// Returns `Ok(vec![])` when no document exists at `workspace_path`
+/// (idempotent — caller doesn't need to pre-check).
+pub fn purge_deleted_workspace_path(
+    store: &SqliteStore,
+    workspace_path: &kebab_core::WorkspacePath,
+) -> anyhow::Result<Vec<kebab_core::ChunkId>> {
+    let conn = store.lock_conn();
+
+    // Look up the document + its asset_id.
+    let doc_row: Option<(String, String)> = conn
+        .query_row(
+            "SELECT doc_id, asset_id FROM documents WHERE workspace_path = ?",
+            rusqlite::params![workspace_path.0],
+            |r| Ok((r.get(0)?, r.get(1)?)),
+        )
+        .optional()
+        .map_err(StoreError::from)?;
+
+    let Some((doc_id, asset_id)) = doc_row else {
+        return Ok(Vec::new());
+    };
+
+    // 1. Collect chunk_ids before CASCADE removes them.
+    let mut stmt = conn
+        .prepare("SELECT chunk_id FROM chunks WHERE doc_id = ?")
+        .map_err(StoreError::from)?;
+    let rows = stmt
+        .query_map(rusqlite::params![doc_id], |r| r.get::<_, String>(0))
+        .map_err(StoreError::from)?;
+    let chunk_ids: Vec<kebab_core::ChunkId> = rows
+        .map(|r| r.map(kebab_core::ChunkId))
+        .collect::<rusqlite::Result<Vec<_>>>()
+        .map_err(StoreError::from)?;
+    drop(stmt);
+
+    // 2. DELETE the document row (CASCADE clears blocks / chunks /
+    //    embedding_records via the FK constraints in V001).
+    conn.execute(
+        "DELETE FROM documents WHERE doc_id = ?",
+        rusqlite::params![doc_id],
+    )
+    .map_err(StoreError::from)?;
+
+    // 3. Delete the asset row only when no other document still
+    //    references it (twin-file safety: two files with identical
+    //    bytes share a single asset row via the blake3 PK).
+    let remaining_refs: i64 = conn
+        .query_row(
+            "SELECT COUNT(*) FROM documents WHERE asset_id = ?",
+            rusqlite::params![asset_id],
+            |r| r.get(0),
+        )
+        .map_err(StoreError::from)?;
+
+    if remaining_refs == 0 {
+        // 4. Capture storage details before deleting the row.
+        let asset_storage: Option<(String, String)> = conn
+            .query_row(
+                "SELECT storage_kind, storage_path FROM assets WHERE asset_id = ?",
+                rusqlite::params![asset_id],
+                |r| Ok((r.get(0)?, r.get(1)?)),
+            )
+            .optional()
+            .map_err(StoreError::from)?;
+
+        conn.execute(
+            "DELETE FROM assets WHERE asset_id = ?",
+            rusqlite::params![asset_id],
+        )
+        .map_err(StoreError::from)?;
+
+        // 5. Best-effort: remove the on-disk copied asset file.
+        if let Some((storage_kind, storage_path)) = asset_storage {
+            if storage_kind == "copied" {
+                let _ = std::fs::remove_file(&storage_path);
+            }
+        }
+    }
+
+    tracing::debug!(
+        target: "kebab-store-sqlite",
+        workspace_path = %workspace_path.0,
+        doc_id = %doc_id,
+        chunk_count = chunk_ids.len(),
+        "purged deleted-file document from store"
+    );
+
+    Ok(chunk_ids)
+}
+
 /// UPSERT a row into `assets`. Used by both the `put_asset_with_bytes`
 /// path (which has bytes + computed `storage_kind/path`) and the
 /// `DocumentStore::put_asset` path (which only has the `RawAsset` and
 /// reads `storage_kind/path` from `asset.stored`).
+///
+/// **`assets.workspace_path` is "last-registered path" semantics for
+/// twin files** (two source files with identical content share one
+/// `assets` row keyed on `asset_id = blake3(content)`). Each ingest
+/// of either twin overwrites `workspace_path` with whichever path was
+/// seen most recently — this is intentional and correct after PR #146
+/// made `try_skip_unchanged` document-centric (uses
+/// `get_document_by_workspace_path`, not `get_asset_by_workspace_path`)
+/// and PR #149 made `reset --orphans-only` document-centric too.
+/// Do NOT "fix" the flip-flop by adding a UNIQUE constraint on
+/// `workspace_path` in the `assets` table — twin de-dup is load-bearing.
+/// When you need media_type for a known document, use the 2-step lookup
+/// `get_document_by_workspace_path` → `doc.source_asset_id` →
+/// `get_asset(asset_id)` so the result is twin-safe.
 pub(crate) fn upsert_asset_row(
     conn: &Connection,
     asset: &kebab_core::RawAsset,

crates/kebab-store-sqlite/tests/ingest_report_snapshot.rs

@@ -41,6 +41,7 @@ fn fixture_report() -> IngestReport {
         skipped_generated: 0,
         skipped_size_exceeded: 0,
         skip_examples: kebab_core::SkipExamples::default(),
+        purged_deleted_files: 0,
         items: Some(vec![
             IngestItem {
                 kind: IngestItemKind::New,

docs/ARCHITECTURE.md

@@ -22,7 +22,7 @@ Cargo workspace, 함수 호출 기반 모듈러 모놀리스. UI binary (`kebab-
 | OCR | Ollama vision LM (default `gemma4:e4b`) — `OcrEngine` trait 으로 Tesseract / Apple Vision 등 future swap (HOTFIXES P6-2) |
 | Image caption | Ollama vision LM, runtime gate `image.caption.enabled` (default OFF) |
 | PDF parser | `lopdf` per-page 텍스트, `chunker_version = "pdf-page-v1"` 가 PDF 자산에 하드코딩 (HOTFIXES P7-3) |
-| code parser | `tree-sitter` + `tree-sitter-rust` / `tree-sitter-python` / `tree-sitter-typescript` / `tree-sitter-javascript` — **parser-side** (`kebab-parse-code`), chunker-side 아님 (design §6.3). chunker versions: Rust = `code-rust-ast-v1`, Python = `code-python-ast-v1`, TypeScript = `code-ts-ast-v1`, JavaScript = `code-js-ast-v1`. `ast_chunk_max_lines = 200` 상수 고정 (HOTFIXES 2026-05-19 — Chunker trait 이 per-medium config 미노출). |
+| code parser | `tree-sitter` + `tree-sitter-rust` / `tree-sitter-python` / `tree-sitter-typescript` / `tree-sitter-javascript` / `tree-sitter-go` / `tree-sitter-java` / `tree-sitter-kotlin-ng` — **parser-side** (`kebab-parse-code`), chunker-side 아님 (design §6.3). chunker versions: Rust = `code-rust-ast-v1`, Python = `code-python-ast-v1`, TypeScript = `code-ts-ast-v1`, JavaScript = `code-js-ast-v1`, Go = `code-go-ast-v1`, Java = `code-java-ast-v1`, Kotlin = `code-kotlin-ast-v1`. `ast_chunk_max_lines = 200` 상수 고정 (HOTFIXES 2026-05-19 — Chunker trait 이 per-medium config 미노출). Kotlin grammar 은 `tree-sitter-kotlin-ng` 사용 — bare `tree-sitter-kotlin` 은 tree-sitter 0.21–0.23 에 고착되어 있어 사용 불가. **Tier 2 (p10-2)**: YAML/k8s → `serde_yaml` + `k8s-manifest-resource-v1` (apiVersion+kind per resource), Dockerfile → `dockerfile-file-v1` (whole-file), Cargo.toml/go.mod/.json/.xml/.groovy → `manifest-file-v1` (whole-file). Tier 2 chunkers live in `kebab-chunk`; no tree-sitter grammar needed (structure from file type, not AST). **Tier 3 (p10-3)**: shell scripts (`.sh`/`.bash`/`.zsh`) direct → `code-text-paragraph-v1` (blank-line paragraph segmentation + 80-line / 20-overlap line-window for oversize). Same chunker also serves as fallback when Tier 1/2 emit 0 chunks or Err — non-k8s YAML / invalid YAML / AST extractor failures all picked up. symbol = None; lang preserved from input doc. **Tier 1 family complete (p10-1D)**: C (`tree-sitter-c`, `code-c-ast-v1`, `.c`/`.h`) + C++ (`tree-sitter-cpp`, `code-cpp-ast-v1`, `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx`). C symbol = function name only; C++ symbol = `namespace::Class::method` (recursive nesting). `.h` 가 C++ syntax 만나면 tree-sitter-c parse 실패 → Tier 3 fallback. |
 | 1B symbol path | workspace path → module path: Python = dotted prefix (`kebab_eval.metrics.compute_mrr`), TypeScript/JavaScript = slash-style prefix (`src/Foo.Foo.search`). Rust 1A-2 는 file-scope nesting 만 (workspace prefix 없음, 비일관 수용 — HOTFIXES 2026-05-20). |
 | TUI | Ratatui + crossterm — P9-1 Library 패널, P9-2/3/4 진행 예정 |
 | Desktop | Tauri 2 + `pdfjs-dist` (native PDF render backend 금지) — P9-5 |
@@ -52,7 +52,7 @@ flowchart TB
         ppdf["kebab-parse-pdf"]
         pimg["kebab-parse-image"]
         paud["kebab-parse-audio<br/>(P8 보류)"]
-        pcode["kebab-parse-code<br/>(P10-1A-2 + P10-1B)"]
+        pcode["kebab-parse-code<br/>(P10-1A-2 + P10-1B + P10-1C-Go + P10-1C-JK + P10-2 + P10-3 + P10-1D)"]
         ptypes["kebab-parse-types"]
         norm["kebab-normalize"]
         chunk["kebab-chunk"]
@@ -127,7 +127,7 @@ flowchart TB
 
 UI → store/llm/parse 직접 의존 금지. 모든 user-facing 진입은 `kebab-app` facade 만 통한다 (frozen 설계 §8). `kebab-cli` 가 `--config <path>` flag 를 honor 하려면 `kebab_app::*_with_config(cfg, …)` companion 을 통해 Config 을 명시적으로 thread 하는 패턴 — 자세한 이유는 [tasks/HOTFIXES.md](../tasks/HOTFIXES.md) 의 `--config` 항목.
 
-`kebab-parse-code` 의 외부 tree-sitter grammar crate 의존: P10-1A-2 에서 `tree-sitter-rust` 추가, P10-1B 에서 `tree-sitter-python` / `tree-sitter-typescript` / `tree-sitter-javascript` 추가. 모두 `kebab-parse-code` 에만 격리 (facade 룰 — UI crate / chunker 가 직접 import 금지).
+`kebab-parse-code` 의 외부 tree-sitter grammar crate 의존: P10-1A-2 에서 `tree-sitter-rust` 추가, P10-1B 에서 `tree-sitter-python` / `tree-sitter-typescript` / `tree-sitter-javascript` 추가, P10-1C-Go 에서 `tree-sitter-go` 추가, P10-1C-JK 에서 `tree-sitter-java` / `tree-sitter-kotlin-ng` 추가, P10-1D 에서 `tree-sitter-c` / `tree-sitter-cpp` 추가. 모두 `kebab-parse-code` 에만 격리 (facade 룰 — UI crate / chunker 가 직접 import 금지). Kotlin 은 `tree-sitter-kotlin-ng` 사용 (bare `tree-sitter-kotlin` 은 tree-sitter 0.21–0.23 에 고착 — 사용 불가).
 
 ## 디렉토리 구조
 
@@ -165,7 +165,16 @@ kebab/
 │   ├── kebab-source-fs/                               # 워크스페이스 walk + checksum (P1-1)
 │   ├── kebab-parse-md/                                # Markdown frontmatter + blocks (P1-2/3)
 │   ├── kebab-normalize/                               # ParsedBlock → CanonicalDocument (P1-4)
-│   ├── kebab-chunk/                                   # heading-aware + pdf-page-v1 + code-rust-ast-v1 + code-python-ast-v1 + code-ts-ast-v1 + code-js-ast-v1 chunker (P1-5, P7-2, P10-1A-2, P10-1B)
+│   ├── kebab-chunk/                                   # heading-aware + pdf-page-v1 + code-*-ast-v1 (Tier 1) + k8s-manifest-resource-v1 + dockerfile-file-v1 + manifest-file-v1 + tier2_shared (P10-2) + code-text-paragraph-v1 (P10-3) chunker (P1-5, P7-2, P10-1A-2, P10-1B, P10-1C-Go, P10-1C-JK, P10-2, P10-3, P10-1D)
+│   │   └── src/
+│   │       ├── code_*_ast_v1.rs              # Tier 1 AST chunkers (rust/python/ts/js/go/java/kotlin/c/cpp)
+│   │       ├── code_c_ast_v1.rs              # Tier 1 (p10-1D): C top-level fn / struct / enum / union
+│   │       ├── code_cpp_ast_v1.rs            # Tier 1 (p10-1D): C++ namespace::Class::method (recursive nesting)
+│   │       ├── k8s_manifest_resource_v1.rs   # Tier 2 (p10-2): YAML multi-doc, apiVersion+kind per resource
+│   │       ├── dockerfile_file_v1.rs         # Tier 2 (p10-2): whole-file Dockerfile
+│   │       ├── manifest_file_v1.rs           # Tier 2 (p10-2): whole-file Cargo.toml / go.mod / .json / .xml / .groovy
+│   │       ├── code_text_paragraph_v1.rs     # Tier 3 (p10-3): blank-line paragraph + 80/20 line-window fallback
+│   │       └── tier2_shared.rs               # Tier 2 (p10-2): shared oversize fallback + Chunk builder helpers
 │   ├── kebab-store-sqlite/                            # SQLite + FTS5 (V001/V002/V003) (P1-6, P2-1, P3-3)
 │   ├── kebab-search/                                  # Lexical + Vector + Hybrid retriever (P2-2, P3-4)
 │   ├── kebab-embed/  kebab-embed-local/                  # Embedder trait + fastembed adapter (P3-1, P3-2)
@@ -175,7 +184,7 @@ kebab/
 │   ├── kebab-eval/                                    # golden query runner + metrics (P5-1, P5-2)
 │   ├── kebab-parse-image/                             # ImageExtractor + Ollama OCR + caption (P6)
 │   ├── kebab-parse-pdf/                               # lopdf per-page text extractor (P7-1)
-│   ├── kebab-parse-code/                              # tree-sitter AST extractors: Rust (P10-1A-2), Python + TypeScript + JavaScript (P10-1B); chunker lives in kebab-chunk
+│   ├── kebab-parse-code/                              # tree-sitter AST extractors: Rust (P10-1A-2), Python + TypeScript + JavaScript (P10-1B), Go (P10-1C-Go), Java + Kotlin (P10-1C-JK — java.rs + kotlin.rs), C + C++ (P10-1D — c.rs + cpp.rs); chunker lives in kebab-chunk
 │   ├── kebab-app/                                     # facade (P0 시그니처 + P3-5/P6-4/P7-3 본체)
 │   ├── kebab-tui/                                     # Ratatui shell + Library 패널 (P9-1)
 │   ├── kebab-mcp/                                     # stdio MCP server — tools: schema, doctor, search, ask (P9-FB-30)

docs/SMOKE.md

@@ -401,6 +401,201 @@ KB --json schema | jq '.stats.code_lang_breakdown'
 - `const foo = () => {...}` 같은 expression-level 함수는 `<top-level>` glue 로 잡힘 (declaration-level 단위만 1B 1차 범위). 자세한 내용: `tasks/HOTFIXES.md` (2026-05-20).
 - `.gitignore` honor — `node_modules/` / `__pycache__/` / `.venv/` 등 built-in 안전망 자동 skip.
 
+## P10-1C-Go Go 코드 색인
+
+P10-1B 와 동일한 격리 KB 설정. `.go` 파일을 워크스페이스에 두고 ingest 하면 `code-go-ast-v1` chunker 가 package 단위 AST 로 처리한다.
+
+```bash
+cat > /tmp/kebab-smoke/workspace/sample_code/hello.go <<'EOF'
+package main
+
+import "fmt"
+
+func Hello(name string) string {
+    return fmt.Sprintf("Hello, %s!", name)
+}
+EOF
+
+KB ingest
+KB search --mode hybrid "Hello" --code-lang go --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "main.Hello", lang = "go"
+```
+
+## P10-2 Tier 2 리소스 파일 색인
+
+P10-1C-Go 와 동일한 격리 KB 설정. `.yaml` / `Dockerfile` / `.toml` 등 Tier 2 리소스 파일을 워크스페이스에 두고 ingest 하면 각 확장자에 맞는 chunker 로 처리된다.
+
+```bash
+# 1) Kubernetes manifest (YAML multi-doc)
+cat > /tmp/kebab-smoke/workspace/deploy.yaml <<'EOF'
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-app
+  namespace: default
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - name: app
+          image: my-app:latest
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-app-svc
+  namespace: default
+spec:
+  selector:
+    app: my-app
+  ports:
+    - port: 80
+EOF
+
+# 2) Dockerfile (전체 파일 단일 chunk)
+cat > /tmp/kebab-smoke/workspace/Dockerfile <<'EOF'
+FROM rust:1.85 AS builder
+WORKDIR /app
+COPY . .
+RUN cargo build --release
+
+FROM debian:bookworm-slim
+COPY --from=builder /app/target/release/kebab /usr/local/bin/kebab
+ENTRYPOINT ["kebab"]
+EOF
+
+# 3) Cargo.toml (manifest — 전체 파일 단일 chunk)
+cp Cargo.toml /tmp/kebab-smoke/workspace/Cargo.toml
+
+# 4) ingest
+KB ingest
+
+# 5) 언어별 검색 (citation.symbol 확인)
+KB search --mode hybrid "Deployment" --code-lang yaml --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "Deployment/default/my-app" (kind/namespace/name), lang = "yaml"
+
+KB search --mode hybrid "rust:1.85" --code-lang dockerfile --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "<dockerfile>", lang = "dockerfile"
+
+KB search --mode hybrid "kebab-cli" --code-lang toml --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "<manifest>", lang = "toml"
+
+# 6) schema stats 에 Tier 2 언어 카운트 확인
+KB --json schema | jq '.stats.code_lang_breakdown'
+# 기대: {"yaml": N, "dockerfile": N, "toml": N, ...}
+```
+
+**Tier 2 citation.symbol 컨벤션**:
+
+- **YAML k8s 리소스**: `<kind>/<namespace>/<name>` (예: `Deployment/default/my-app`). `namespace` 없으면 `<kind>/<name>`. multi-doc YAML 은 `---` 구분자 기준으로 resource 별 chunk.
+- **Dockerfile**: `<dockerfile>` (고정 심볼, 전체 파일이 단일 chunk).
+- **TOML / JSON / XML / Groovy / go.mod**: `<manifest>` (고정 심볼, 전체 파일이 단일 chunk). 단, 파일이 `tier2_shared` 의 oversize threshold 초과 시 줄 단위 fallback chunk.
+
+## P10-3 Tier 3 paragraph fallback
+
+P10-2 와 동일한 격리 KB 설정. `.sh` 파일은 direct, 비-k8s YAML 은 fallback 으로 들어간다.
+
+```bash
+# 1) shell script (direct Tier 3)
+cat > /tmp/kebab-smoke/workspace/deploy.sh <<'EOF'
+#!/usr/bin/env bash
+set -e
+
+echo "ingesting..."
+kebab ingest
+
+echo "done"
+kebab schema --json | jq '.stats'
+EOF
+
+# 2) 비-k8s YAML (Tier 2 가 0 chunk → Tier 3 fallback)
+cat > /tmp/kebab-smoke/workspace/docker-compose.yml <<'EOF'
+version: '3'
+services:
+  api:
+    image: nginx:latest
+    ports:
+      - 8080:80
+EOF
+
+# 3) ingest
+KB ingest
+
+# 4) 언어별 검색 (citation.symbol = None 확인)
+KB search --mode hybrid "ingest" --code-lang shell --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang, chunker: .chunker_version}]}'
+# 기대: symbol = null, lang = "shell", chunker_version = "code-text-paragraph-v1"
+
+KB search --mode hybrid "nginx" --code-lang yaml --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang, chunker: .chunker_version}]}'
+# 기대: symbol = null, lang = "yaml", chunker_version = "code-text-paragraph-v1"
+
+# 5) schema stats 에 shell 카운트 확인
+KB --json schema | jq '.stats.code_lang_breakdown'
+# 기대: {"shell": N, "yaml": M, ...}
+```
+
+**Tier 3 citation.symbol 컨벤션**: 항상 `null`. 의미 단위 식별 안 함. `lang` 은 원본 lang 보존 (shell → `"shell"`, yaml → `"yaml"` 등).
+
+## P10-1D C + C++ AST chunkers
+
+P10-3 와 동일한 격리 KB 설정. `.c` 와 `.cpp` 파일이 각자의 AST chunker 로 처리된다.
+
+```bash
+# 1) C 파일 — top-level function symbol
+cat > /tmp/kebab-smoke/workspace/parser.c <<'EOF'
+#include <stdio.h>
+
+int parse_record(const char *line) {
+    if (line == NULL) return -1;
+    return 0;
+}
+EOF
+
+# 2) C++ 파일 — namespace::Class::method symbol
+cat > /tmp/kebab-smoke/workspace/chunker.cpp <<'EOF'
+namespace kebab {
+namespace chunk {
+
+class Foo {
+public:
+    void bar() { /* impl */ }
+};
+
+}  // namespace chunk
+}  // namespace kebab
+EOF
+
+# 3) ingest
+KB ingest
+
+# 4) 언어별 검색 (citation.symbol 확인)
+KB search --mode hybrid "parse_record" --code-lang c --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "parse_record" (function name only), lang = "c"
+
+KB search --mode hybrid "bar" --code-lang cpp --json | \
+  jq '{hits: [.hits[] | {symbol: .citation.symbol, lang: .citation.lang}]}'
+# 기대: symbol = "kebab::chunk::Foo" 또는 "kebab::chunk::Foo::bar" (namespace::Class[::method]), lang = "cpp"
+
+# 5) schema stats 에 C/C++ 카운트 확인
+KB --json schema | jq '.stats.code_lang_breakdown'
+# 기대: {"c": N, "cpp": M, ...}
+```
+
+**Tier 1 (p10-1D) citation.symbol 컨벤션**: C 는 function name only (`parse_record` 같이 nesting 없음). C++ 는 `namespace::Class::method` (recursive namespace + class nesting). `.h` 파일이 C++ syntax (namespace / template / class) 만나면 tree-sitter-c parse 실패 → p10-3 Tier 3 fallback (`code-text-paragraph-v1`) 으로 자동 picked up.
+
 ## 검증 체크리스트
 
 - `kebab doctor` 가 `--config` path 를 honor 하고 그 안의 `storage.data_dir` 를 출력 (XDG default 가 아님).
@@ -433,6 +628,11 @@ rm -rf /tmp/kebab-smoke              # 통째로 정리
 - (P7-3) 한 PDF 가 N 페이지면 `kebab ingest` 가 N 개 (또는 그 이상의, 페이지 길면 multi-chunk) 의 chunk 를 한 transaction 안에서 commit. 500 페이지 책 → 500+ chunk 한 번에 → embedding throughput 가 bottleneck. 임베딩 활성 워크스페이스에서 큰 PDF 를 처음 ingest 하면 분-단위 시간 + WAL 크기 증가 가능 — P+ 스케일 hardening task 까지 정상 동작이지만 비용은 측정 가능.
 - (P10-1A-2) `.rs` 파일을 워크스페이스에 두면 `kebab ingest` 결과에 `new` 카운터에 포함. `kebab search --mode hybrid "<함수명>" --code-lang rust --json` 가 `citation.kind = "code"`, `citation.lang = "rust"` (SearchHit top-level `code_lang` 도 동일), `citation.symbol` (함수/타입 이름), `citation.line_start` / `citation.line_end` 를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"rust": N` 이 나오면 chunk 가 색인됨.
 - (P10-1B) `.py` / `.ts` / `.tsx` / `.js` / `.mjs` / `.cjs` / `.jsx` 파일을 워크스페이스에 두면 `kebab ingest` 결과에 `new` 카운터에 포함. `--code-lang python` / `--code-lang typescript` / `--code-lang javascript` 검색이 `citation.symbol` 에 module path prefix 를 포함한 결과를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 해당 언어 카운트 등장 확인.
+- (P10-1C-Go) `.go` 파일을 워크스페이스에 두면 `kebab ingest` 가 `code-go-ast-v1` 로 처리. `--code-lang go` 검색이 `citation.symbol` 에 `<package>.<Func>` / `<package>.(*Receiver).<Method>` 형식 결과를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"go": N` 등장 확인.
+- (P10-1C-JK) `.java` 파일은 `code-java-ast-v1`, `.kt`/`.kts` 파일은 `code-kotlin-ast-v1` 로 처리. `--code-lang java` / `--code-lang kotlin` 검색이 `citation.symbol` 에 `com.foo.Foo.bar` 형식 결과를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"java": N` / `"kotlin": N` 등장 확인.
+- (P10-2) `.yaml`/`.yml` 파일은 apiVersion+kind 파싱으로 k8s resource 별 chunk 생성 (`k8s-manifest-resource-v1`). `Dockerfile`/`Dockerfile.*` 는 전체 파일 단일 chunk (`dockerfile-file-v1`). `.toml`/`.json`/`.xml`/`.groovy`/`go.mod` 는 전체 파일 단일 chunk (`manifest-file-v1`). `--code-lang yaml` / `--code-lang dockerfile` / `--code-lang toml` 검색이 `citation.symbol` 에 각각 `Deployment/default/my-app` / `<dockerfile>` / `<manifest>` 형식 결과를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"yaml": N` / `"dockerfile": N` / `"toml": N` 등장 확인.
+- (P10-3) `.sh`/`.bash`/`.zsh` 파일은 direct Tier 3 (`code-text-paragraph-v1`). 비-k8s YAML (apiVersion+kind 없는 yaml) 은 k8s chunker 가 0 chunk → Tier 3 fallback 으로 picked up. `--code-lang shell` / `--code-lang yaml` 검색이 `citation.symbol = null`, `chunker_version = "code-text-paragraph-v1"` 결과를 반환하면 wiring 정상. `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"shell": N` 등장 확인.
+- (P10-1D) `.c` / `.h` 파일은 `code-c-ast-v1` (function name only symbol). `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx` 는 `code-cpp-ast-v1` (`namespace::Class::method` symbol). `--code-lang c` / `--code-lang cpp` 검색 동작 + `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"c": N` / `"cpp": M` 등장 확인. `.h` 파일이 C++ 내용 (namespace 등) 갖고 있으면 자동으로 Tier 3 (`code-text-paragraph-v1`) fallback 으로 picked up.
 - (P7-3 + follow-up) 동일 path 에 byte 가 다른 PDF 를 두 번째 ingest 하면 `purge_vector_orphans_for_workspace_path` 가 옛 chunk_id 를 LanceDB 에서 먼저 삭제, 이어서 `purge_orphan_at_workspace_path` 가 옛 doc / chunks / embedding_records 를 SQLite 에서 sweep. 새 byte 가 새 `doc_id` 로 색인됨. `IngestReport` 에 그 자산만 `new+=1` (다른 자산은 `updated`). 두 store 모두 정합 — 옛 본문 검색 시 옛 chunks 가 더 이상 surface 되지 않음.
 
 ### Embedding upgrade (fb-39b)

docs/superpowers/plans/2026-05-20-p10-1c-go-ast-chunker.md

@@ -0,0 +1,540 @@
+# p10-1C-Go Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task.
+
+**Goal:** Activate Go code ingest end-to-end on top of 1A-2 (Rust) + 1B (Python/TS/JS) infrastructure. Add `tree-sitter-go` grammar + `GoAstExtractor` + `code-go-ast-v1` chunker + media routing + app dispatch arm.
+
+**Architecture:** Mirror 1A-2 / 1B exactly. `kebab-parse-code/src/go.rs` walks tree-sitter-go parse tree; emits one `Block::Code` per top-level AST semantic unit with `SourceSpan::Code { symbol, lang: Some("go") }`. Symbol prefix = **source-extracted package name** (from `package_clause` AST node — design §3.4 Go row). `kebab-chunk/src/code_go_ast_v1.rs` is a near-duplicate of `code-rust-ast-v1`. App dispatch's `ingest_one_code_asset` (PR #142 generalized 4-arm match) gets a 5th arm.
+
+**Tech Stack:** Rust 2024 workspace, `tree-sitter` 0.26 (already in workspace), `tree-sitter-go` (NEW), 1A-2/1B infrastructure unchanged.
+
+**Memory note:** Host has been OOM-killed previously. Use `cargo test -p <crate>` and `cargo check -p <crate>` only. ONE full-suite invocation reserved for Task G gate.
+
+---
+
+## Pre-flight
+
+Branch `feat/p10-1c-go` already exists.
+
+- [ ] **Disk hygiene**: `cargo clean` if previous artifacts are bloated. Skip if disk is comfortable (`df -h /`).
+
+Reference files:
+- 1A-2 Rust extractor: `crates/kebab-parse-code/src/rust.rs` — closest single-language scaffold template.
+- 1B Python extractor (closest analog for "class-nesting recursion" — Go doesn't have classes but has package as the single prefix): `crates/kebab-parse-code/src/python.rs`.
+- 1A-2 chunker scaffold: `crates/kebab-chunk/src/code_rust_ast_v1.rs`.
+- 1B dispatch generalization: `crates/kebab-app/src/lib.rs::ingest_one_code_asset` (~L1645, 4-arm match).
+- 1A-2 source-fs routing: `crates/kebab-source-fs/src/media.rs` `"rs" =>` arm.
+
+---
+
+## Task A: Workspace dep `tree-sitter-go`
+
+**Files:**
+- Modify: `Cargo.toml` (workspace `[workspace.dependencies]`, after `tree-sitter-javascript` line)
+- Modify: `crates/kebab-parse-code/Cargo.toml`
+
+- [ ] **Step 1**: `cargo add tree-sitter-go -p kebab-parse-code` to resolve version.
+
+- [ ] **Step 2**: Lift the resolved version into `[workspace.dependencies]` after `tree-sitter-javascript`:
+
+```toml
+# Go grammar for code ingest (kebab-parse-code, p10-1C).
+tree-sitter-go         = "<resolved>"
+```
+
+Switch the crate's entry to `{ workspace = true }` matching existing tree-sitter-* style.
+
+- [ ] **Step 3**: `cargo build -p kebab-parse-code` → clean. Unused dep warning is fine.
+
+- [ ] **Step 4**: Commit:
+
+```bash
+git add Cargo.toml Cargo.lock crates/kebab-parse-code/Cargo.toml
+git commit -m "build(p10-1c-go): add tree-sitter-go workspace dep
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task B: source-fs media routing `.go` → `MediaType::Code("go")`
+
+**Files:**
+- Modify: `crates/kebab-source-fs/src/media.rs` (add arm after the existing JS arm at ~L44)
+- Test: same file's test module
+
+- [ ] **Step 1 (failing test)** — add to existing tests near `py_ts_js_files_map_to_media_code`:
+
+```rust
+#[test]
+fn go_files_map_to_media_code_go() {
+    assert_eq!(media_type_for(Path::new("a/b.go")), MediaType::Code("go".into()));
+}
+```
+
+- [ ] **Step 2**: Run → FAIL.
+
+- [ ] **Step 3**: Add the arm before the catch-all `_ => MediaType::Other(ext)`:
+
+```rust
+        // p10-1C-Go: Go ingest activated.
+        "go" => MediaType::Code("go".into()),
+```
+
+- [ ] **Step 4**: Run → PASS. `cargo test -p kebab-source-fs` → no regression.
+
+- [ ] **Step 5**: clippy clean, commit:
+
+```bash
+git add crates/kebab-source-fs/
+git commit -m "feat(p10-1c-go): route .go to MediaType::Code(go)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task C: App dispatch allowlist + bail arm for "go"
+
+**Files:**
+- Modify: `crates/kebab-app/src/lib.rs` (dispatch match guard + 4 internal match arms in `ingest_one_code_asset`)
+
+- [ ] **Step 1**: Find the `MediaType::Code(lang) if matches!(lang.as_str(), "rust" | "python" | "typescript" | "javascript")` arm (~L953). Add `"go"` to the allowlist:
+
+```rust
+        MediaType::Code(lang)
+            if matches!(lang.as_str(), "rust" | "python" | "typescript" | "javascript" | "go") =>
+        {
+```
+
+- [ ] **Step 2**: In `ingest_one_code_asset`'s 4 `match code_lang` blocks (parser_version, chunker_version, extract, chunk), add a "go" arm that `bail!()`s for now (extractor + chunker land in Task D/E). Mirror the Python/TS/JS bail-then-activate pattern:
+
+```rust
+let parser_version = match code_lang {
+    // ... existing arms ...
+    "go" => anyhow::bail!("go ingest not yet wired (p10-1c-go Task F)"),
+    other => anyhow::bail!("unsupported code_lang: {other}"),
+};
+// similar for chunker_version / extract / chunk matches
+```
+
+- [ ] **Step 3**: `cargo test -p kebab-app --lib` → existing 52 lib tests stay green. `cargo test -p kebab-app --test code_ingest_smoke` → 6 stay green (Rust path unaffected).
+
+- [ ] **Step 4**: clippy clean, commit:
+
+```bash
+git add crates/kebab-app/
+git commit -m "refactor(p10-1c-go): add go to ingest dispatch allowlist (bail until Task F)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task D: `GoAstExtractor` (`kebab-parse-code/src/go.rs`)
+
+**Files:**
+- Create: `crates/kebab-parse-code/src/go.rs`
+- Modify: `crates/kebab-parse-code/src/lib.rs` (`pub mod go;` + re-exports `GO_PARSER_VERSION`, `GoAstExtractor`)
+- Create: `crates/kebab-parse-code/tests/fixtures/sample.go`
+
+Scaffold mirrors `crates/kebab-parse-code/src/rust.rs` line-for-line for the `CanonicalDocument` skeleton (Extractor trait impl, `id_for_doc`, ProvenanceEvent, final `CanonicalDocument` literal). The novel parts:
+
+### Constants
+
+```rust
+pub const PARSER_VERSION: &str = "code-go-v1";
+
+pub struct GoAstExtractor;
+// new() + Default
+// supports: matches!(m, MediaType::Code(l) if l == "go")
+// agent = "kb-parse-code"
+// metadata.code_lang = Some("go")
+// SourceType::Note (no SourceType::Code variant)
+// repo/git_branch/git_commit via detect_repo
+```
+
+### Package extraction
+
+Unlike 1B's path-based `module_path_for_python` / `_for_tsjs`, the Go package prefix comes from the **source code's `package` declaration** (design §3.4). tree-sitter-go's grammar:
+
+- Root: `source_file`
+- First named child is typically `package_clause` → contains `package_identifier` child whose text is the package name.
+
+Helper (local to `go.rs`):
+
+```rust
+/// Returns the package name from a tree-sitter-go `source_file`, or
+/// `None` if the file has no `package_clause` (invalid Go in practice,
+/// but be defensive).
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_clause" {
+            // `package_clause` has a `package_identifier` named child.
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "package_identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+```
+
+### Semantic-unit rules
+
+| node kind | unit | symbol |
+|-----------|------|--------|
+| `function_declaration` (name field) | 1 | `<pkg>.<fn_name>` |
+| `method_declaration` | 1 | `<pkg>.(<TypeText>).<MethodName>` where `<TypeText>` includes a leading `*` if the receiver is `pointer_type`. Examples: `chunk.(*MdHeadingV1Chunker).ChunkDoc`, `chunk.(Foo).Bar`. |
+| `type_declaration` (struct / interface / type alias) | 1 per inner `type_spec` | `<pkg>.<TypeName>` |
+| `const_declaration`, `var_declaration`, `import_declaration` (single or block) | glue | `<pkg>.<top-level>` (or `<pkg>.<package>` if file has ZERO real units AND glue is import-only — same `<module>` post-pass pattern as 1B Python, renamed to `<package>` to avoid colliding with Go's `package` keyword? — actually use `<module>` per design §3.4 — see "module / namespace 만 있고 symbol 없는 경우" line) |
+
+`unit_start` walks `comment` siblings (same as 1B). Go doesn't have separate attribute / decorator nodes.
+
+Method receiver pointer detection:
+
+```rust
+// In the method_declaration arm:
+let receiver = child.child_by_field_name("receiver");  // parameter_list
+let receiver_type_text = receiver.and_then(|r| {
+    let mut cw = r.walk();
+    for p in r.named_children(&mut cw) {
+        if p.kind() == "parameter_declaration" {
+            // type field is either type_identifier (value) or pointer_type (ptr)
+            if let Some(ty) = p.child_by_field_name("type") {
+                let s = &src[ty.start_byte()..ty.end_byte()];
+                return Some(s.to_string());  // includes leading "*" if pointer_type
+            }
+        }
+    }
+    None
+});
+// Format: "(*Foo)" or "(Foo)" — wrap in parens, preserve leading "*" if any.
+let owner = receiver_type_text
+    .map(|t| format!("({t})"))
+    .unwrap_or_else(|| "()".to_string());
+let method_name = name_text(&child, src);
+// symbol = format!("{pkg}.{owner}.{method_name}")
+```
+
+Read tree-sitter-go's grammar.json or node-types.json (in the registry source) if any field name above differs in the resolved crate version.
+
+### Fixture `tests/fixtures/sample.go`:
+
+```go
+// sample.go
+package chunk
+
+import (
+	"fmt"
+	"strings"
+)
+
+const Version = "v1"
+
+type MdHeadingV1Chunker struct {
+	Name string
+}
+
+// ChunkDoc returns a stub list of strings.
+func (m *MdHeadingV1Chunker) ChunkDoc(input string) []string {
+	return []string{m.Name}
+}
+
+func (m MdHeadingV1Chunker) Name2() string {
+	return m.Name
+}
+
+type Stringer interface {
+	String() string
+}
+
+func Free(x int) int {
+	return x + 1
+}
+
+func init() {
+	fmt.Println(strings.ToUpper("init"))
+}
+```
+
+### Test module
+
+Mirror Python's test shape (use `crate::rust::tests_support::fixed_code_asset` from 1B):
+
+```rust
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn extract_fixture() -> kebab_core::CanonicalDocument {
+        let bytes = std::fs::read(
+            concat!(env!("CARGO_MANIFEST_DIR"), "/tests/fixtures/sample.go"),
+        ).unwrap();
+        let asset = crate::rust::tests_support::fixed_code_asset(
+            "crates/x/src/sample.go", "go",
+        );
+        let cfg = kebab_core::ExtractConfig::default();
+        let root = std::path::PathBuf::from("/tmp");
+        let ctx = kebab_core::ExtractContext { asset: &asset, workspace_root: &root, config: &cfg };
+        GoAstExtractor::new().extract(&ctx, &bytes).unwrap()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_go() {
+        let e = GoAstExtractor::new();
+        assert!(e.supports(&MediaType::Code("go".into())));
+        assert!(!e.supports(&MediaType::Code("rust".into())));
+        assert!(!e.supports(&MediaType::Markdown));
+    }
+
+    #[test]
+    fn go_units_match_design_3_4_symbols() {
+        let doc = extract_fixture();
+        let mut syms: Vec<String> = doc.blocks.iter().filter_map(|b| match b {
+            Block::Code(c) => match &c.common.source_span {
+                SourceSpan::Code { symbol, lang, .. } => {
+                    assert_eq!(lang.as_deref(), Some("go"));
+                    symbol.clone()
+                }
+                _ => None,
+            },
+            _ => None,
+        }).collect();
+        syms.sort();
+        assert!(syms.iter().any(|s| s == "chunk.Free"), "got {syms:?}");
+        assert!(syms.iter().any(|s| s == "chunk.init"));
+        assert!(syms.iter().any(|s| s == "chunk.MdHeadingV1Chunker"));
+        assert!(syms.iter().any(|s| s == "chunk.(*MdHeadingV1Chunker).ChunkDoc"));
+        assert!(syms.iter().any(|s| s == "chunk.(MdHeadingV1Chunker).Name2"));
+        assert!(syms.iter().any(|s| s == "chunk.Stringer"));
+        assert!(syms.iter().any(|s| s == "chunk.<top-level>"));  // import + const grouped
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let a = extract_fixture();
+        for _ in 0..50 { assert_eq!(extract_fixture().blocks, a.blocks); }
+    }
+}
+```
+
+### Step list
+
+- [ ] Step 1: create fixture + test module.
+- [ ] Step 2: run → FAIL (`GoAstExtractor` undefined).
+- [ ] Step 3: implement `go.rs`. Scaffold mirrors `python.rs` (Extractor impl + extract scaffold + `build_blocks` returning blocks). `build_blocks` does: extract_package → walk root's named children → branch per node kind per the table above → emit `Block::Code` with `SourceSpan::Code { symbol, lang: Some("go") }`. Use the same `flush_glue` / glue grouping / `<top-level>` vs `<module>` post-pass as Python (rename to `<package>` if user prefers, but spec §3.4 says `<module>` so keep that name for cross-language consistency).
+- [ ] Step 4: wire into `lib.rs`:
+
+```rust
+pub mod go;
+pub use go::{PARSER_VERSION as GO_PARSER_VERSION, GoAstExtractor};
+```
+
+- [ ] Step 5: `cargo test -p kebab-parse-code` → all pass (Rust/Python/TS/JS + new Go). `cargo clippy -p kebab-parse-code --all-targets -- -D warnings` clean.
+- [ ] Step 6: commit:
+
+```bash
+git add crates/kebab-parse-code/
+git commit -m "feat(p10-1c-go): tree-sitter-go AST extractor (GoAstExtractor)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task E: `code-go-ast-v1` chunker
+
+**Files:**
+- Create: `crates/kebab-chunk/src/code_go_ast_v1.rs`
+- Modify: `crates/kebab-chunk/src/lib.rs`
+
+Identical pattern to PR #142 Task I (TS) / Task L (JS) — near-duplicate of `code_rust_ast_v1.rs` with substitutions:
+- `const VERSION_LABEL: &str = "code-go-ast-v1";`
+- struct name `CodeGoAstV1Chunker`
+- error message says `"CodeGoAstV1Chunker only handles..."`
+- module doc-comment prose `Rust` → `Go`, `code-rust-ast-v1` → `code-go-ast-v1`
+
+`split_oversize` / `make_chunk` / `AST_CHUNK_MAX_LINES = 200` / `BYTES_PER_TOKEN = 3` / `POLICY_HASH_HEX_LEN = 16` IDENTICAL (language-agnostic).
+
+Test module: copy from `code_ts_ast_v1.rs` and substitute names. KEEP cross-chunker `policy_hash_matches_md_heading_v1`.
+
+Wire into `crates/kebab-chunk/src/lib.rs`:
+
+```rust
+mod code_go_ast_v1;
+pub use code_go_ast_v1::CodeGoAstV1Chunker;
+```
+
+(Alphabetical placement.)
+
+Verify + commit:
+- `cargo test -p kebab-chunk code_go_ast` PASS (~6 tests)
+- `cargo test -p kebab-chunk` full per-crate green
+- `cargo clippy -p kebab-chunk --all-targets -- -D warnings` clean
+
+```bash
+git add crates/kebab-chunk/
+git commit -m "feat(p10-1c-go): code-go-ast-v1 chunker (1:1 + oversize split)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task F: Activate Go in app dispatch
+
+**Files:**
+- Modify: `crates/kebab-app/src/lib.rs` (replace 4 "go" bail! arms with real calls)
+- Modify: `crates/kebab-app/tests/code_ingest_smoke.rs` (add Go integration test)
+
+Replace the 4 `"go" => anyhow::bail!(...)` arms in `ingest_one_code_asset` (added in Task C) with real:
+
+```rust
+"go" => ParserVersion(kebab_parse_code::GO_PARSER_VERSION.to_string()),
+// ...
+"go" => CodeGoAstV1Chunker.chunker_version(),
+// ...
+"go" => kebab_parse_code::GoAstExtractor::new()
+    .extract(&ctx, &bytes)
+    .context("kb-parse-code::GoAstExtractor::extract (code:go)")?,
+// ...
+"go" => CodeGoAstV1Chunker
+    .chunk(&canonical, chunk_policy)
+    .context("kb-chunk::CodeGoAstV1Chunker::chunk (code:go)")?,
+```
+
+Add imports at top of lib.rs:
+- `kebab_chunk::CodeGoAstV1Chunker`
+- `kebab_parse_code::GoAstExtractor`
+
+Integration test (mirror PR #142's `python_file_ingests_and_searches_as_code_citation`):
+
+```rust
+#[test]
+fn go_file_ingests_and_searches_as_code_citation() {
+    // ... TempDir + Config harness same as Python/TS test ...
+    let pkg_dir = env.workspace_root.join("chunk");
+    std::fs::create_dir_all(&pkg_dir).unwrap();
+    std::fs::write(
+        pkg_dir.join("ast.go"),
+        "package chunk\n\nfunc ParseDoc(input string) string {\n    return input\n}\n",
+    ).unwrap();
+
+    let report = kebab_app::ingest_with_config(/* ... */).unwrap();
+    assert!(report.new >= 1);
+    let go_item = report.items.as_ref().unwrap().iter()
+        .find(|i| i.doc_path.0.ends_with("ast.go")).expect("ast.go item");
+    assert_eq!(go_item.parser_version.as_ref().unwrap().0, "code-go-v1");
+    assert_eq!(go_item.chunker_version.as_ref().unwrap().0, "code-go-ast-v1");
+
+    let hits = kebab_app::search_with_config(/* search "ParseDoc" */).unwrap();
+    let h = hits.iter().find(|h| matches!(h.citation, kebab_core::Citation::Code { .. }))
+        .expect("Citation::Code hit");
+    match &h.citation {
+        kebab_core::Citation::Code { lang, symbol, line_start, .. } => {
+            assert_eq!(lang.as_deref(), Some("go"));
+            assert_eq!(symbol.as_deref(), Some("chunk.ParseDoc"));
+            assert!(*line_start >= 1);
+        }
+        _ => unreachable!(),
+    }
+    assert_eq!(h.code_lang.as_deref(), Some("go"));
+}
+```
+
+Verify:
+- `cargo test -p kebab-app --test code_ingest_smoke` → 7/7 (6 existing + 1 new go)
+- `cargo test -p kebab-app --lib` → 52/52 (no regression)
+- clippy clean
+
+```bash
+git add crates/kebab-app/
+git commit -m "feat(p10-1c-go): activate Go in ingest_one_code_asset dispatch
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task G: Snapshot + full-suite gate + manual SMOKE
+
+**Files:**
+- Create: `crates/kebab-chunk/tests/code_go_ast_snapshot.rs` + fixture + baseline (mirror `code_python_ast_snapshot.rs` from PR #142)
+
+- [ ] **Step 1**: Add snapshot integration test. In-memory `CanonicalDocument` (no kebab-parse-code dep — boundary §6.3). Generate baseline: `UPDATE_SNAPSHOTS=1 cargo test -p kebab-chunk code_go_ast_snapshot` → re-run without env → PASS.
+
+- [ ] **Step 2**: Full-suite gate (the ONE invocation allowed this PR):
+
+```bash
+cargo clippy --workspace --all-targets -- -D warnings
+cargo test --workspace --no-fail-fast -j 1
+```
+
+Both must be CLEAN/GREEN.
+
+- [ ] **Step 3**: Manual SMOKE (optional but recommended — mirror PR #142 SMOKE):
+
+```bash
+cargo build --release   # OR debug if RAM-tight
+rm -rf /tmp/kebab-go-smoke && mkdir -p /tmp/kebab-go-smoke/ws/chunk
+echo 'package chunk
+
+func ParseDoc(input string) string { return input }
+' > /tmp/kebab-go-smoke/ws/chunk/ast.go
+# adapt isolated config from docs/SMOKE.md
+./target/release/kebab --config /tmp/kebab-go-smoke/config.toml ingest --json | jq '.items[].parser_version' | sort -u
+./target/release/kebab --config /tmp/kebab-go-smoke/config.toml search "ParseDoc" --code-lang go --json | jq '.hits[0]'
+```
+
+Expected: `code-go-v1` in parser_versions; Citation::Code with symbol `chunk.ParseDoc`.
+
+- [ ] **Step 4**: Commit snapshot only (full-suite + SMOKE are gates, not commit content):
+
+```bash
+git add crates/kebab-chunk/tests/
+git commit -m "test(p10-1c-go): code-go-ast-v1 chunker snapshot + full-suite gate
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task H: Docs + version bump
+
+- README: 지원 형식 row — add Go (`.go`, `code-go-ast-v1`).
+- HANDOFF: P10 phase row note 1C-Go merged (Go active). Java/Kotlin remain pending.
+- ARCHITECTURE: directory tree note for kebab-parse-code includes `go.rs` (Java/Kotlin coming in next PR). Decisions table — no new row (1C-Go follows the 1A-2/1B convention).
+- SMOKE: extend the P10 section with a 1-line note for Go (or compact Go example).
+- tasks/INDEX + tasks/p10/INDEX: flip the row for 1C-Go to 🟡 (PR open) → ✅ on merge. The 1C row in p10/INDEX may need a split — `p10-1C-Go ⏳ → 🟡` and `p10-1C-JavaKotlin ⏳ unchanged` (since user split into 2 PRs).
+- frozen design §10.1: add a one-liner — "p10-1C-Go 활성화 (Go)" (Java/Kotlin will get its own line in the next PR).
+- `Cargo.toml`: workspace version `0.11.1 → 0.12.0` (minor — dogfooding surface 확장, 새 chunker + extractor 활성화).
+
+```bash
+git add -A
+git commit -m "docs(p10-1c-go): README/HANDOFF/ARCHITECTURE/SMOKE/INDEX + chore: bump version 0.11.1 → 0.12.0
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Finalize: PR + review loop + release
+
+Per workflow memory (gitea-pr + review loop, no single-shot):
+
+- [ ] `gitea-pr` → PR title `feat(p10-1C-Go): tree-sitter-go AST extractor + chunker — Go 코드 색인 활성화`
+- [ ] Review loop until APPROVE → merge → main pull → branch cleanup → `cargo clean` → `gitea-release v0.12.0`.
+
+---
+
+## Self-Review (filled by plan author)
+
+- **Spec coverage**: design §1C Go (extractor + chunker + activation) → Tasks D/E/F; §3.3 (`code-go-ast-v1`) → Task E; §3.4 symbol path → Task D (extract_package + method receiver pointer detection); §6.1 (`kebab-parse-code/src/go.rs`) → Task D; §6.2 (`kebab-chunk/src/code_go_ast_v1.rs`) → Task E; §6.3 dep graph (`tree-sitter-go` parser-side) → Task A; §9.1 Tier-1 + oversize fallback → Task E (1A-2 split_oversize reused identically).
+- **No placeholders**: novel logic (`extract_package`, method receiver pointer detection, fixture, test assertions, dispatch arm additions) given concretely. Mechanical mirrors (chunker, integration test, snapshot test) pinned to exact existing files with substitutions.
+- **Type consistency**: `GoAstExtractor` / `GO_PARSER_VERSION = "code-go-v1"` / `CodeGoAstV1Chunker` / `VERSION_LABEL = "code-go-ast-v1"` used consistently across Tasks A-H. `MediaType::Code("go")` in routing + dispatch. `Citation::Code` with `lang: Some("go")` in integration test.

docs/superpowers/plans/2026-05-20-p10-1c-jk-ast-chunker.md

@@ -0,0 +1,494 @@
+# p10-1C-JavaKotlin Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task.
+
+**Goal:** Activate Java + Kotlin code ingest end-to-end. Mirror 1C-Go (PR #151 / v0.12.0) for Java (single-language scaffold) and Kotlin (additional top-level fn variant). Both use source-side `package` extraction (design §3.4 JVM convention).
+
+**Architecture:** Same shape as 1B (multi-language single PR). 2 new tree-sitter grammars + 2 extractors + 2 chunkers + media routing + app dispatch arms. 1C-Go pattern is the closest template for source-side `package` extraction.
+
+**Tech Stack:** Rust 2024 workspace, `tree-sitter` 0.26 (already), `tree-sitter-java` + `tree-sitter-kotlin` (NEW). 1A-2/1B/1C-Go infrastructure unchanged.
+
+**Memory note:** Host has been OOM'd previously. Per-crate cargo only. ONE full-suite + clippy invocation in Task J.
+
+---
+
+## Pre-flight
+
+Branch `feat/p10-1c-jk` already exists.
+
+- [ ] **Disk hygiene**: `cargo clean` if heavy (last cleanup recovered 34 GB).
+
+Reference files:
+- 1C-Go extractor: `crates/kebab-parse-code/src/go.rs` — closest template for source-side package extraction.
+- 1B Python extractor: `crates/kebab-parse-code/src/python.rs` — class-nesting recursion model (relevant for Java/Kotlin).
+- 1A-2 chunker: `crates/kebab-chunk/src/code_rust_ast_v1.rs` — duplicate-with-substitution.
+- 1B dispatch generalization: `crates/kebab-app/src/lib.rs::ingest_one_code_asset` 4-arm match (~L1645). 1C-Go already added `"go"`; this PR adds `"java"` + `"kotlin"`.
+
+---
+
+## Task A: Workspace deps (tree-sitter-java + tree-sitter-kotlin)
+
+**Files:**
+- Modify: `Cargo.toml` (workspace `[workspace.dependencies]`, after `tree-sitter-go` line)
+- Modify: `crates/kebab-parse-code/Cargo.toml`
+
+- [ ] **Step 1**: `cargo add tree-sitter-java tree-sitter-kotlin -p kebab-parse-code`. If `tree-sitter-kotlin` resolves to a fork name, verify the actively-maintained crate (e.g. check crates.io page / GitHub stars / last update). Likely `tree-sitter-kotlin` (without fork suffix) is the default.
+
+- [ ] **Step 2**: Lift the two resolved versions into `[workspace.dependencies]` after `tree-sitter-go`:
+
+```toml
+# JVM family grammars for code ingest (kebab-parse-code, p10-1C-JK).
+tree-sitter-java       = "<resolved>"
+tree-sitter-kotlin     = "<resolved>"
+```
+
+Switch crate's entries to `{ workspace = true }`.
+
+- [ ] **Step 3**: `cargo build -p kebab-parse-code` → clean. Unused dep warning is fine.
+
+- [ ] **Step 4**: Commit:
+
+```bash
+git add Cargo.toml Cargo.lock crates/kebab-parse-code/Cargo.toml
+git commit -m "build(p10-1c-jk): add tree-sitter-java + tree-sitter-kotlin workspace deps
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+If the kotlin crate has a different actual name (e.g. `tree-sitter-kotlin-ng` or fork suffix), document the choice in the commit body briefly.
+
+---
+
+## Task B: source-fs routing `.java` / `.kt` / `.kts`
+
+**Files:**
+- Modify: `crates/kebab-source-fs/src/media.rs` (add arm after the existing `.go` arm)
+- Test: same file's test module
+
+- [ ] **Step 1 (failing test)** — add near `go_files_map_to_media_code_go`:
+
+```rust
+#[test]
+fn java_kotlin_files_map_to_media_code() {
+    assert_eq!(media_type_for(Path::new("a/b.java")), MediaType::Code("java".into()));
+    assert_eq!(media_type_for(Path::new("a/b.kt")), MediaType::Code("kotlin".into()));
+    assert_eq!(media_type_for(Path::new("a/b.kts")), MediaType::Code("kotlin".into()));
+}
+```
+
+- [ ] **Step 2**: Run → FAIL.
+
+- [ ] **Step 3**: Add the arms before the `_ => MediaType::Other(ext)` fallback (after `"go" => ...`):
+
+```rust
+        // p10-1C-JK: JVM family (Java + Kotlin) ingest activated.
+        "java"             => MediaType::Code("java".into()),
+        "kt" | "kts"       => MediaType::Code("kotlin".into()),
+```
+
+- [ ] **Step 4**: Run → PASS. `cargo test -p kebab-source-fs` → no regression.
+
+- [ ] **Step 5**: clippy clean, commit.
+
+```bash
+cargo clippy -p kebab-source-fs --all-targets -- -D warnings
+git add crates/kebab-source-fs/
+git commit -m "feat(p10-1c-jk): route .java/.kt/.kts to MediaType::Code
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task C: App dispatch + bail arms for "java" + "kotlin"
+
+**Files:**
+- Modify: `crates/kebab-app/src/lib.rs`
+
+- [ ] **Step 1**: Find the dispatch arm guard (currently `matches!(lang.as_str(), "rust" | "python" | "typescript" | "javascript" | "go")`). Add `"java"` + `"kotlin"`:
+
+```rust
+MediaType::Code(lang)
+    if matches!(lang.as_str(),
+        "rust" | "python" | "typescript" | "javascript" | "go" | "java" | "kotlin") =>
+```
+
+- [ ] **Step 2**: In `ingest_one_code_asset` the 4 `match code_lang` blocks add `"java"` and `"kotlin"` arms that `bail!()` for now:
+
+```rust
+"java" => anyhow::bail!("java ingest not yet wired (p10-1c-jk Task F)"),
+"kotlin" => anyhow::bail!("kotlin ingest not yet wired (p10-1c-jk Task I)"),
+```
+
+(in each of the 4 blocks before the `other =>` catch-all).
+
+- [ ] **Step 3**: Verify per-crate:
+- `cargo test -p kebab-app --lib` → 52 stay green
+- `cargo test -p kebab-app --test code_ingest_smoke` → 7 stay green
+- `cargo clippy -p kebab-app --all-targets -- -D warnings` clean
+
+- [ ] **Step 4**: Commit:
+
+```bash
+git add crates/kebab-app/
+git commit -m "refactor(p10-1c-jk): add java + kotlin to ingest dispatch allowlist (bail until Tasks F/I)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Task D: `JavaAstExtractor`
+
+**Files:**
+- Create: `crates/kebab-parse-code/src/java.rs`
+- Modify: `crates/kebab-parse-code/src/lib.rs` (`pub mod java;` + re-exports `JAVA_PARSER_VERSION`, `JavaAstExtractor`)
+- Create: `crates/kebab-parse-code/tests/fixtures/sample.java`
+
+Scaffold mirrors `crates/kebab-parse-code/src/go.rs` (1C-Go) — single-language with source-side `package` extraction. Differences:
+
+### Constants
+
+```rust
+pub const PARSER_VERSION: &str = "code-java-v1";
+pub struct JavaAstExtractor;
+// supports: matches!(m, MediaType::Code(l) if l == "java")
+// code_lang = Some("java"), SourceType::Note, repo via detect_repo
+```
+
+### Package extraction (Java)
+
+tree-sitter-java grammar:
+- Root: `program`
+- `package_declaration` (top-level child) → contains `scoped_identifier` (dotted) OR `identifier` (single-segment)
+
+```rust
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_declaration" {
+            // package_declaration has scoped_identifier OR identifier as first named child
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "scoped_identifier" || sub.kind() == "identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+```
+
+(Verify field names against tree-sitter-java's node-types.json if any field differs.)
+
+### AST mapping
+
+| node kind | unit | symbol |
+|-----------|------|--------|
+| `class_declaration` (name field) | 1 + recurse body | `<pkg>.<ClassName>` |
+| `interface_declaration` (name) | 1 + recurse body | `<pkg>.<InterfaceName>` |
+| `enum_declaration` (name) | 1 | `<pkg>.<EnumName>` |
+| `record_declaration` (name, Java 14+) | 1 | `<pkg>.<RecordName>` |
+| `annotation_type_declaration` (name) | 1 | `<pkg>.<AnnotationName>` |
+| Inside class body: `method_declaration` (name) | 1 | `<pkg>.<Class>.<method>` |
+| Inside class body: `constructor_declaration` (name = class name) | 1 | `<pkg>.<Class>.<ClassName>` (matches Java convention) |
+| Nested classes recurse with class name pushed onto mod_path | as above | `<pkg>.<Outer>.<Inner>` etc. |
+| `import_declaration`, `package_declaration` | glue | `<pkg>.<top-level>` |
+| `field_declaration` at top of class | NOT a unit in 1C-JK (would explode unit count for value-only fields) | n/a |
+
+`unit_start` walks `comment` siblings; Java has `@interface` annotations but those are part of `annotation_type_declaration` itself, not separate sibling nodes.
+
+`mod_path` = class nesting (like 1B Python). Empty at file top level.
+
+### Fixture `tests/fixtures/sample.java`:
+
+```java
+// sample.java
+package com.kebab.chunk;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Heading-aware Markdown chunker.
+ */
+public class MdHeadingV1Chunker {
+    private final String name;
+
+    public MdHeadingV1Chunker(String name) {
+        this.name = name;
+    }
+
+    public List<String> chunkDoc(String input) {
+        return List.of(name, input);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public static class Builder {
+        private String name;
+        public Builder withName(String n) { this.name = n; return this; }
+        public MdHeadingV1Chunker build() { return new MdHeadingV1Chunker(name); }
+    }
+}
+
+interface Stringer {
+    String asString();
+}
+
+enum Mode { DEFAULT, FAST }
+```
+
+### Test module (inline `#[cfg(test)] mod tests`)
+
+Mirror 1C-Go shape:
+
+```rust
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use kebab_core::{Block, MediaType, SourceSpan};
+
+    fn extract_fixture() -> kebab_core::CanonicalDocument {
+        let bytes = std::fs::read(
+            concat!(env!("CARGO_MANIFEST_DIR"), "/tests/fixtures/sample.java"),
+        ).unwrap();
+        let asset = crate::rust::tests_support::fixed_code_asset(
+            "crates/x/src/sample.java", "java",
+        );
+        let cfg = kebab_core::ExtractConfig::default();
+        let root = std::path::PathBuf::from("/tmp");
+        let ctx = kebab_core::ExtractContext { asset: &asset, workspace_root: &root, config: &cfg };
+        JavaAstExtractor::new().extract(&ctx, &bytes).unwrap()
+    }
+
+    #[test]
+    fn extractor_supports_only_media_code_java() { /* ... */ }
+
+    #[test]
+    fn java_units_match_design_3_4_symbols() {
+        let doc = extract_fixture();
+        let mut syms: Vec<String> = doc.blocks.iter().filter_map(|b| match b {
+            Block::Code(c) => match &c.common.source_span {
+                SourceSpan::Code { symbol, lang, .. } => {
+                    assert_eq!(lang.as_deref(), Some("java"));
+                    symbol.clone()
+                }
+                _ => None,
+            },
+            _ => None,
+        }).collect();
+        syms.sort();
+        // workspace path → package extracted from source = com.kebab.chunk
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker"), "got {syms:?}");
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.MdHeadingV1Chunker"));  // constructor
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.chunkDoc"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.getName"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder.withName"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.MdHeadingV1Chunker.Builder.build"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.Stringer"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.Mode"));
+        assert!(syms.iter().any(|s| s == "com.kebab.chunk.<top-level>"));
+    }
+
+    #[test]
+    fn deterministic_across_runs() {
+        let a = extract_fixture();
+        for _ in 0..50 { assert_eq!(extract_fixture().blocks, a.blocks); }
+    }
+}
+```
+
+### Wire into lib.rs
+
+```rust
+pub mod java;
+pub use java::{PARSER_VERSION as JAVA_PARSER_VERSION, JavaAstExtractor};
+```
+
+### Verify + commit
+
+- `cargo test -p kebab-parse-code` → all pass
+- `cargo clippy -p kebab-parse-code --all-targets -- -D warnings` clean
+- commit `feat(p10-1c-jk): tree-sitter-java AST extractor (JavaAstExtractor)`
+
+---
+
+## Task E: `code-java-ast-v1` chunker
+
+Identical pattern to 1C-Go Task E. Duplicate `code_rust_ast_v1.rs` with substitutions:
+- `VERSION_LABEL = "code-java-ast-v1"`, struct `CodeJavaAstV1Chunker`
+- error message + module doc-comment prose
+- Test module: parser_version `"code-java-v1"`, code_lang `"java"`
+- Keep cross-chunker `policy_hash_matches_md_heading_v1`
+
+Wire into `crates/kebab-chunk/src/lib.rs` (alphabetical). Verify + commit.
+
+---
+
+## Task F: Activate Java in app dispatch
+
+Replace the `"java"` `bail!()` arms in `ingest_one_code_asset` with real calls (`JavaAstExtractor` + `CodeJavaAstV1Chunker`). Add integration test `java_file_ingests_and_searches_as_code_citation` (mirror 1C-Go test, fixture `pkg_dir/Foo.java` with `package com.foo;` and `public class Foo { public String bar() { ... } }`, assert symbol `com.foo.Foo.bar`).
+
+Verify + commit.
+
+---
+
+## Task G: `KotlinAstExtractor`
+
+**Files:**
+- Create: `crates/kebab-parse-code/src/kotlin.rs`
+- Modify: `crates/kebab-parse-code/src/lib.rs`
+- Create: `crates/kebab-parse-code/tests/fixtures/sample.kt`
+
+Constants: `PARSER_VERSION = "code-kotlin-v1"`, `KotlinAstExtractor`, `code_lang = "kotlin"`.
+
+### Package extraction (Kotlin)
+
+tree-sitter-kotlin grammar:
+- Root: `source_file`
+- `package_header` (top-level) → contains `identifier` (dotted is single `identifier` node text; verify against node-types.json)
+
+```rust
+fn extract_package(root: tree_sitter::Node, src: &str) -> Option<String> {
+    let mut cur = root.walk();
+    for child in root.named_children(&mut cur) {
+        if child.kind() == "package_header" {
+            let mut c2 = child.walk();
+            for sub in child.named_children(&mut c2) {
+                if sub.kind() == "identifier" {
+                    return Some(src[sub.start_byte()..sub.end_byte()].to_string());
+                }
+            }
+        }
+    }
+    None
+}
+```
+
+(Verify against tree-sitter-kotlin's node-types.json — Kotlin grammar varies more than Java's.)
+
+### AST mapping (Kotlin)
+
+| node kind | unit | symbol |
+|-----------|------|--------|
+| `class_declaration` (name field) — covers `class`, `data class`, `sealed class`, `enum class`, `interface` (Kotlin's interface is a class_declaration variant) | 1 + recurse body | `<pkg>.<ClassName>` |
+| `object_declaration` (name) — singleton | 1 + recurse | `<pkg>.<ObjectName>` |
+| `function_declaration` (name) | 1 | `<pkg>.<fn_name>` (top-level) or `<pkg>.<Class>.<method>` (inside class) |
+| Inside class body: `function_declaration` → method | 1 | `<pkg>.<Class>.<method>` |
+| `property_declaration` at top-level (`val` / `var`) | glue | `<top-level>` (Kotlin top-level properties are common — keep as glue not unit) |
+| `import_header`, `package_header` | glue | `<top-level>` |
+
+(Detect class-vs-interface via modifier; for 1C 1차 treat both as `class_declaration` arm — symbol differs only via name. If tree-sitter-kotlin exposes `interface` keyword via modifier list, mention in HOTFIXES if special handling needed.)
+
+### Fixture `sample.kt`:
+
+```kotlin
+// sample.kt
+package com.kebab.chunk
+
+import java.util.List
+
+/**
+ * Heading-aware Markdown chunker.
+ */
+class MdHeadingV1Chunker(val name: String) {
+    fun chunkDoc(input: String): List<String> = listOf(name, input)
+
+    fun getName(): String = name
+
+    companion object {
+        fun withName(n: String): MdHeadingV1Chunker = MdHeadingV1Chunker(n)
+    }
+}
+
+interface Stringer {
+    fun asString(): String
+}
+
+enum class Mode { DEFAULT, FAST }
+
+fun freeFunction(x: Int): Int = x + 1
+
+object Singleton {
+    fun ping(): String = "pong"
+}
+```
+
+### Test module — assert symbols
+
+```rust
+// Asserted symbols:
+"com.kebab.chunk.MdHeadingV1Chunker"
+"com.kebab.chunk.MdHeadingV1Chunker.chunkDoc"
+"com.kebab.chunk.MdHeadingV1Chunker.getName"
+"com.kebab.chunk.MdHeadingV1Chunker.Companion"  // companion object (verify name)
+"com.kebab.chunk.MdHeadingV1Chunker.Companion.withName"  // method on companion
+"com.kebab.chunk.Stringer"
+"com.kebab.chunk.Mode"
+"com.kebab.chunk.freeFunction"  // top-level fn (Kotlin-specific!)
+"com.kebab.chunk.Singleton"
+"com.kebab.chunk.Singleton.ping"
+"com.kebab.chunk.<top-level>"  // import + property glue
+```
+
+(Companion object: tree-sitter-kotlin may use `companion_object` or `object_declaration` with `companion` modifier — verify and adjust the symbol if `Companion` isn't the right name.)
+
+### Wire into lib.rs
+
+```rust
+pub mod kotlin;
+pub use kotlin::{PARSER_VERSION as KOTLIN_PARSER_VERSION, KotlinAstExtractor};
+```
+
+Verify + commit.
+
+---
+
+## Task H: `code-kotlin-ast-v1` chunker
+
+Same pattern as Task E. Substitute kotlin labels. Verify + commit.
+
+---
+
+## Task I: Activate Kotlin in app dispatch
+
+Replace `"kotlin"` bail arms with real calls. Add integration test `kotlin_file_ingests_and_searches_as_code_citation`. Verify + commit.
+
+---
+
+## Task J: Snapshots + full-suite + SMOKE
+
+- Create 2 snapshot tests (`code_java_ast_snapshot.rs`, `code_kotlin_ast_snapshot.rs`) + baselines. Mirror 1C-Go Task G snapshot test.
+- ONE workspace test + clippy invocation.
+- Manual SMOKE: write a `.java` and `.kt` file in TempDir, ingest, search.
+
+Verify + commit (snapshot only).
+
+---
+
+## Task K: Docs + version bump
+
+- README + HANDOFF + ARCHITECTURE + SMOKE + 2 INDEX updates + design §10.1.
+- `Cargo.toml` version `0.12.0 → 0.13.0` (minor, surface 확장).
+
+Commit `docs(p10-1c-jk): ... + chore: bump 0.12.0 → 0.13.0`.
+
+---
+
+## Finalize
+
+`gitea-pr` → review loop → merge → main pull → branch cleanup → `cargo clean` → `gitea-release v0.13.0`.
+
+---
+
+## Self-Review (filled by plan author)
+
+- **Spec coverage**: design §1C Java + Kotlin → Tasks D-I; §3.4 symbol path → extractor (Java D, Kotlin G); §6.1/§6.2 module structure → Tasks D/E/G/H; §6.3 dep graph → Task A; §9.1 Tier-1 + oversize fallback → chunkers E/H.
+- **No placeholders**: novel logic (Java `extract_package`, Kotlin `extract_package`, AST walk arm tables) given concretely. Chunkers (E, H) are explicit "duplicate code_rust_ast_v1.rs with substitution X/Y/Z".
+- **Type consistency**: `JavaAstExtractor` / `JAVA_PARSER_VERSION` / `CodeJavaAstV1Chunker` + `KotlinAstExtractor` / `KOTLIN_PARSER_VERSION` / `CodeKotlinAstV1Chunker` used consistently. `MediaType::Code("java")` / `("kotlin")` in routing + dispatch.
+- **Kotlin grammar risk**: noted — tree-sitter-kotlin's exact node kinds (`class_declaration` vs `object_declaration`, `companion_object` vs companion modifier, `package_header` vs `package_directive`) should be verified against the resolved crate's node-types.json. Pin contract via test fixture; HOTFIXES any deviation found during implementation.

docs/superpowers/plans/2026-05-21-p10-1d-c-cpp-ast-chunker.md

@@ -0,0 +1,930 @@
+# p10-1D C + C++ AST Chunkers Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Activate C + C++ code ingest end-to-end. P10 Tier 1 chunker family final entry.
+
+**Architecture:** Same shape as 1B (multi-language single PR) and 1C-JK (JVM family). 2 new tree-sitter grammars + 2 extractors + 2 chunkers + media routing (delegated via `code_lang_for_path`, no change) + app dispatch arms. C symbol = function name only; C++ symbol = `namespace::Class::method` via recursive class/namespace nesting (Java/Kotlin + Python hybrid).
+
+**Tech Stack:** Rust 2024 workspace, `tree-sitter` 0.26 (already), `tree-sitter-c` + `tree-sitter-cpp` (NEW). 1A-2/1B/1C/p10-2/p10-3 infrastructure unchanged.
+
+**Memory note:** Host has been OOM'd previously (재부팅 사례). Per-crate cargo only. ONE full-suite + clippy invocation in Task J. NO `cargo test --workspace` outside that gate.
+
+---
+
+## Pre-flight
+
+Branch `feat/p10-1d-c-cpp` already exists (spec commit `8add684`).
+
+- [ ] **Disk hygiene**: `df -h /` 점검. 80% 넘으면 `cargo clean`.
+
+Reference files:
+- 1C-JK extractor: `crates/kebab-parse-code/src/{java,kotlin}.rs` — closest template for source-side identifier prefix (package vs namespace).
+- 1B Python extractor: `crates/kebab-parse-code/src/python.rs` — class-nesting recursion model (relevant for C++ class nesting).
+- 1A-2 chunker: `crates/kebab-chunk/src/code_rust_ast_v1.rs` — duplicate-with-substitution pattern.
+- 1B/1C/p10-2/p10-3 dispatch generalization: `crates/kebab-app/src/lib.rs::ingest_one_code_asset` (~L1796–2116). Current allowlist + 4-arm match.
+- spec: `tasks/p10/p10-1d-c-cpp-ast-chunker.md`.
+
+---
+
+## Task A: Workspace deps (tree-sitter-c + tree-sitter-cpp)
+
+**Files:**
+- Modify: `Cargo.toml` (`[workspace.dependencies]`, after `tree-sitter-kotlin-ng`)
+- Modify: `crates/kebab-parse-code/Cargo.toml`
+
+- [ ] **Step 1**: `cargo add tree-sitter-c tree-sitter-cpp -p kebab-parse-code`. If either crate's actively-maintained name differs (e.g. `tree-sitter-cpp` vs `tree-sitter-cpp-ng`), verify on crates.io. The `tree-sitter-c` 0.24 / `tree-sitter-cpp` 0.23 line is the most common; verify compatibility with workspace `tree-sitter = "0.26"` (likely already supported via the `tree-sitter-language` shim).
+
+- [ ] **Step 2**: Lift the two resolved versions into `[workspace.dependencies]` (after `tree-sitter-kotlin-ng`):
+
+```toml
+# C/C++ family grammars for code ingest (kebab-parse-code, p10-1D).
+tree-sitter-c          = "<resolved>"
+tree-sitter-cpp        = "<resolved>"
+```
+
+Switch crate's `Cargo.toml` entries to `{ workspace = true }`.
+
+- [ ] **Step 3**: `cargo build -p kebab-parse-code` → clean. Unused dep warning is fine.
+
+- [ ] **Step 4**: Commit:
+
+```bash
+git add Cargo.toml Cargo.lock crates/kebab-parse-code/Cargo.toml
+git commit -m "$(cat <<'EOF'
+build(p10-1d): add tree-sitter-c + tree-sitter-cpp workspace deps
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+If a crate's resolved name has a non-obvious fork suffix (e.g. `tree-sitter-cpp-ng`), document it in the commit body.
+
+---
+
+## Task B: C AST extractor (`kebab-parse-code/src/c.rs`)
+
+**Files:**
+- Create: `crates/kebab-parse-code/src/c.rs`
+- Modify: `crates/kebab-parse-code/src/lib.rs` (pub mod + `C_PARSER_VERSION` const)
+
+- [ ] **Step 1**: Create `crates/kebab-parse-code/src/c.rs`. Mirror `crates/kebab-parse-code/src/go.rs` (closest template — single-language, no namespace/package nesting, top-level units). Replace tree-sitter-go with tree-sitter-c:
+
+```rust
+//! p10-1D: C AST extractor.
+
+use crate::traits::{Extractor, ExtractContext};
+use anyhow::{Context, Result};
+use kebab_core::{Block, BlockId, CanonicalDocument, CodeBlock, CommonBlock, /*..*/, SourceSpan, id_for_block, id_for_doc};
+use tree_sitter::Parser;
+
+pub const C_PARSER_VERSION: &str = concat!("tree-sitter-c-", env!("CARGO_PKG_VERSION"));
+// Or use the tree-sitter-c crate version: better to hardcode for stability.
+// Look at how go.rs / rust.rs / etc. set their PARSER_VERSION.
+
+pub struct CAstExtractor {
+    parser: Parser,
+}
+
+impl CAstExtractor {
+    pub fn new() -> Self {
+        let mut parser = Parser::new();
+        parser.set_language(&tree_sitter_c::LANGUAGE.into()).expect("load tree-sitter-c");
+        Self { parser }
+    }
+}
+
+impl Extractor for CAstExtractor {
+    fn extract(&mut self, ctx: &ExtractContext, bytes: &[u8]) -> Result<CanonicalDocument> {
+        // ... mirror go.rs:
+        //   1. parse the tree
+        //   2. iterate source_file's named_children
+        //   3. for each top-level node:
+        //      - function_definition → emit unit (symbol = fn name)
+        //      - struct_specifier (named) → emit unit (symbol = struct name)
+        //      - enum_specifier (named) → emit unit (symbol = enum name)
+        //      - union_specifier (named) → emit unit (symbol = union name)
+        //      - declaration → glue
+        //      - preproc_include / preproc_def / preproc_function_def / preproc_ifdef → glue
+        //      - else → glue
+        //   4. <top-level> glue chunk if any glue accumulated
+        //   5. <module> post-pass if 0 units
+        // ...
+        todo!("mirror go.rs structure with C-specific node-kind names")
+    }
+}
+```
+
+**ACTION**: Read `crates/kebab-parse-code/src/go.rs` in full first. It's the closest template — single-language, no namespace prefix to thread through (C is even simpler than Go since there's no `package`). Port the structure: parse → iterate top-level → match on node-kind → emit units or accumulate glue.
+
+Node-kind name reference (tree-sitter-c): `function_definition`, `struct_specifier`, `enum_specifier`, `union_specifier`, `declaration`, `preproc_*`. Confirm by checking the crate's `node-types.json` if uncertain.
+
+**Function name extraction**: `function_definition` has a `declarator` field. The innermost `identifier` of that declarator is the function name. Mirror how go.rs extracts function names — it uses tree-sitter field traversal.
+
+- [ ] **Step 2**: Register the module in `crates/kebab-parse-code/src/lib.rs`:
+
+```rust
+pub mod c;
+pub use c::{CAstExtractor, C_PARSER_VERSION};
+```
+
+- [ ] **Step 3**: Build:
+
+```bash
+cargo build -p kebab-parse-code 2>&1 | tail -5
+```
+
+Expected: clean.
+
+- [ ] **Step 4**: Commit (no test yet — Task D adds the snapshot test):
+
+```bash
+git add crates/kebab-parse-code/src/c.rs crates/kebab-parse-code/src/lib.rs
+git commit -m "$(cat <<'EOF'
+feat(p10-1d): C AST extractor (tree-sitter-c)
+
+Top-level units: function_definition (symbol = fn name), struct_specifier,
+enum_specifier, union_specifier (each emits 1 unit with the symbol being
+the named identifier). Preprocessor directives + top-level declarations
+group into a <top-level> glue chunk. Empty file or zero units → <module>
+post-pass.
+
+C symbol = function name only — no namespace, no class nesting (design §3.4).
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task C: C++ AST extractor (`kebab-parse-code/src/cpp.rs`)
+
+**Files:**
+- Create: `crates/kebab-parse-code/src/cpp.rs`
+- Modify: `crates/kebab-parse-code/src/lib.rs`
+
+- [ ] **Step 1**: Create `crates/kebab-parse-code/src/cpp.rs`. The closest template is `crates/kebab-parse-code/src/java.rs` (1C-JK) — it handles package prefix + class nesting via recursion. C++ adds namespace nesting (multiple levels possible).
+
+Pseudocode:
+
+```rust
+//! p10-1D: C++ AST extractor.
+
+use crate::traits::{Extractor, ExtractContext};
+use anyhow::{Context, Result};
+use kebab_core::{/* ... */};
+use tree_sitter::{Node, Parser};
+
+pub const CPP_PARSER_VERSION: &str = "tree-sitter-cpp-<resolved>";
+
+pub struct CppAstExtractor { parser: Parser }
+
+impl CppAstExtractor {
+    pub fn new() -> Self {
+        let mut parser = Parser::new();
+        parser.set_language(&tree_sitter_cpp::LANGUAGE.into()).expect("load tree-sitter-cpp");
+        Self { parser }
+    }
+
+    fn visit(&self, node: Node, source: &[u8], prefix: &[&str], units: &mut Vec<(String, Node)>, glue: &mut Vec<Node>) {
+        // prefix is the namespace/class chain so far (e.g. ["kebab", "chunk", "MdHeadingV1Chunker"]).
+        for child in node.named_children(&mut node.walk()) {
+            match child.kind() {
+                "namespace_definition" => {
+                    let name = child.child_by_field_name("name")
+                        .and_then(|n| n.utf8_text(source).ok())
+                        .unwrap_or("<anonymous>");
+                    let mut new_prefix = prefix.to_vec();
+                    new_prefix.push(name);
+                    let body = child.child_by_field_name("body").unwrap_or(child);
+                    self.visit(body, source, &new_prefix, units, glue);
+                }
+                "class_specifier" | "struct_specifier" if child.child_by_field_name("name").is_some() => {
+                    let name = child.child_by_field_name("name")
+                        .and_then(|n| n.utf8_text(source).ok())
+                        .unwrap_or("<anonymous>");
+                    // Emit the class itself as a unit.
+                    let symbol = build_symbol(prefix, &[], name);  // e.g. "kebab::chunk::Foo"
+                    units.push((symbol, child));
+                    // Recurse for nested classes / methods.
+                    let mut new_prefix = prefix.to_vec();
+                    new_prefix.push(name);
+                    let body = child.child_by_field_name("body").unwrap_or(child);
+                    self.visit(body, source, &new_prefix, units, glue);
+                }
+                "function_definition" => {
+                    // declarator may be qualified_identifier (out-of-class def) or plain identifier.
+                    let symbol = extract_fn_symbol(child, source, prefix);
+                    units.push((symbol, child));
+                    // Do NOT recurse into function body — inner classes/lambdas left to a future revision.
+                }
+                "template_declaration" => {
+                    // Recurse: unwrap to inner declarator (function_definition or class_specifier)
+                    // and treat it as if it were directly there. Template params NOT in symbol.
+                    self.visit(child, source, prefix, units, glue);
+                }
+                "enum_specifier" if child.child_by_field_name("name").is_some() => {
+                    let name = child.child_by_field_name("name").and_then(|n| n.utf8_text(source).ok()).unwrap_or("<anonymous>");
+                    let symbol = build_symbol(prefix, &[], name);
+                    units.push((symbol, child));
+                }
+                "concept_definition" => {
+                    let name = /* extract */;
+                    let symbol = build_symbol(prefix, &[], &name);
+                    units.push((symbol, child));
+                }
+                _ => glue.push(child),
+            }
+        }
+    }
+}
+
+fn build_symbol(prefix: &[&str], extras: &[&str], leaf: &str) -> String {
+    // Join with ::
+    let mut parts: Vec<&str> = prefix.iter().copied().collect();
+    parts.extend_from_slice(extras);
+    parts.push(leaf);
+    parts.join("::")
+}
+
+fn extract_fn_symbol(node: Node, source: &[u8], prefix: &[&str]) -> String {
+    // function_definition.declarator may be a function_declarator wrapping a
+    // qualified_identifier (out-of-class def like `void Foo::bar(){}`) or a
+    // plain identifier (free fn or in-namespace fn).
+    // Need to walk down to the leaf identifier and any qualifier chain.
+    // For qualified_identifier "Foo::bar::baz", break into ["Foo", "bar"] qualifier + "baz" leaf.
+    // ...
+    todo!("walk declarator → qualified_identifier → assemble symbol with prefix")
+}
+
+// Extractor impl: parse, visit(root, ...), emit chunks-of-blocks per (symbol, node) pair + <top-level> glue + <module> fallback.
+```
+
+This is the most intricate extractor in p10-1D. **Action**: read `crates/kebab-parse-code/src/java.rs` for the recursion pattern, then `crates/kebab-parse-code/src/python.rs` for the class-nesting pattern, and combine. tree-sitter-cpp's node-types.json (or a quick `tree-sitter parse` against a sample file) confirms exact node-kind names.
+
+- [ ] **Step 2**: Register in `crates/kebab-parse-code/src/lib.rs`:
+
+```rust
+pub mod cpp;
+pub use cpp::{CppAstExtractor, CPP_PARSER_VERSION};
+```
+
+- [ ] **Step 3**: Build:
+
+```bash
+cargo build -p kebab-parse-code 2>&1 | tail -5
+```
+
+Expected: clean.
+
+- [ ] **Step 4**: Commit:
+
+```bash
+git add crates/kebab-parse-code/src/cpp.rs crates/kebab-parse-code/src/lib.rs
+git commit -m "$(cat <<'EOF'
+feat(p10-1d): C++ AST extractor (tree-sitter-cpp)
+
+Symbol = namespace::Class::method via recursive visit. namespace_definition
+pushes namespace name (anonymous → <anonymous>). class_specifier / struct_specifier
+(named) emit class unit + recurse with class name pushed. function_definition
+emits method unit (symbol may include qualified_identifier prefix for
+out-of-class definitions). template_declaration unwraps to inner declarator
+(template params NOT in symbol). enum_specifier + concept_definition emit
+type-level units. extern "C" block content + using/include/define → glue.
+
+Constructor / destructor symbols use Class::Class / Class::~Class
+convention. Operator overloads keep operator+ form.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task D: C chunker + snapshot test
+
+**Files:**
+- Create: `crates/kebab-chunk/src/code_c_ast_v1.rs`
+- Create: `crates/kebab-chunk/tests/fixtures/sample.c`
+- Create: `crates/kebab-chunk/tests/code_c_ast_snapshot.rs`
+- Modify: `crates/kebab-chunk/src/lib.rs`
+
+- [ ] **Step 1**: Create `crates/kebab-chunk/src/code_c_ast_v1.rs`. **Mirror `crates/kebab-chunk/src/code_go_ast_v1.rs`** (closest 1-extractor pattern, no nesting):
+
+```rust
+//! p10-1D: C AST chunker.
+
+use crate::tier2_shared::build_chunk;
+use crate::{Chunker, ChunkPolicy};
+use anyhow::Result;
+use kebab_core::{Block, Chunk, Document};
+
+pub const VERSION_LABEL: &str = "code-c-ast-v1";
+
+pub struct CodeCAstV1Chunker;
+
+impl Chunker for CodeCAstV1Chunker {
+    fn chunker_version(&self) -> &'static str { VERSION_LABEL }
+    fn policy_hash(&self, policy: &ChunkPolicy) -> String {
+        crate::tier2_shared::policy_hash(policy)
+    }
+    fn chunk(&self, doc: &Document, policy: &ChunkPolicy) -> Result<Vec<Chunk>> {
+        // Mirror code_go_ast_v1.rs's body — iterate doc.blocks, each Block::Code
+        // contributes 1 chunk via build_chunk. Apply oversize fallback per block
+        // via tier2_shared::push_chunks_with_oversize.
+        // ...
+        todo!("mirror code_go_ast_v1.rs verbatim, substituting VERSION_LABEL")
+    }
+}
+```
+
+Read `code_go_ast_v1.rs` and port verbatim — the language-agnostic body iterates `doc.blocks` and emits chunks. Only the `VERSION_LABEL` and (potentially) symbol formatting helper change.
+
+- [ ] **Step 2**: Create `tests/fixtures/sample.c` (~30 lines, includes top-level fn, struct, enum, preprocessor):
+
+```c
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAX_BUF 4096
+
+typedef enum {
+    OK = 0,
+    ERR_PARSE,
+    ERR_IO,
+} status_t;
+
+typedef struct {
+    int id;
+    char name[64];
+    status_t status;
+} record_t;
+
+static int counter = 0;
+
+int parse_record(const char *line, record_t *out) {
+    if (line == NULL || out == NULL) return ERR_PARSE;
+    return OK;
+}
+
+void print_record(const record_t *r) {
+    printf("[%d] %s (status=%d)\n", r->id, r->name, r->status);
+}
+
+int main(void) {
+    record_t r = { .id = 1, .name = "foo", .status = OK };
+    print_record(&r);
+    return 0;
+}
+```
+
+Expected snapshot: 3 function units (`parse_record`, `print_record`, `main`) + 1 enum unit (`status_t`) + 1 struct unit (`record_t`) + 1 `<top-level>` glue (preproc + global var). Total ~6 chunks.
+
+- [ ] **Step 3**: Create `tests/code_c_ast_snapshot.rs` mirroring `tests/code_go_ast_snapshot.rs`. Assertions:
+
+```rust
+// Pseudocode:
+// 1. Load fixture sample.c
+// 2. Run CAstExtractor → Document
+// 3. Run CodeCAstV1Chunker.chunk(&doc, &policy)
+// 4. Assert chunks.len() == expected (6).
+// 5. Assert symbols (from chunks[i].source_spans[0]::SourceSpan::Code.symbol) match expected list:
+//    ["status_t", "record_t", "parse_record", "print_record", "main", "<top-level>"]
+//    (order matches AST traversal order — verify by running once.)
+// 6. Assert all chunks have lang = Some("c").
+```
+
+- [ ] **Step 4**: Register module in `crates/kebab-chunk/src/lib.rs`:
+
+```rust
+pub mod code_c_ast_v1;
+pub use code_c_ast_v1::CodeCAstV1Chunker;
+```
+
+- [ ] **Step 5**: Run test:
+
+```bash
+cargo test -p kebab-chunk --test code_c_ast_snapshot -- --nocapture 2>&1 | tail -25
+```
+
+Expected: PASS. If chunk count or symbol order differs from expectation, INSPECT the actual output and update the test's expected list to match (run once to learn, codify on second run).
+
+- [ ] **Step 6**: Clippy + commit:
+
+```bash
+cargo clippy -p kebab-chunk --all-targets -- -D warnings
+git add crates/kebab-chunk/src/code_c_ast_v1.rs \
+        crates/kebab-chunk/src/lib.rs \
+        crates/kebab-chunk/tests/fixtures/sample.c \
+        crates/kebab-chunk/tests/code_c_ast_snapshot.rs
+git commit -m "$(cat <<'EOF'
+feat(p10-1d): code-c-ast-v1 chunker + snapshot test
+
+Mirrors code-go-ast-v1's chunker pattern (1 chunk per AST unit + <top-level>
+glue + oversize fallback). Snapshot test against tests/fixtures/sample.c
+(function + struct + enum + preprocessor) verifies symbol order + lang=c
+stamping.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task E: C++ chunker + snapshot test
+
+**Files:**
+- Create: `crates/kebab-chunk/src/code_cpp_ast_v1.rs`
+- Create: `crates/kebab-chunk/tests/fixtures/sample.cpp`
+- Create: `crates/kebab-chunk/tests/code_cpp_ast_snapshot.rs`
+- Modify: `crates/kebab-chunk/src/lib.rs`
+
+- [ ] **Step 1**: Create `code_cpp_ast_v1.rs`. **Mirror `code_c_ast_v1.rs`** verbatim, only VERSION_LABEL differs:
+
+```rust
+pub const VERSION_LABEL: &str = "code-cpp-ast-v1";
+
+pub struct CodeCppAstV1Chunker;
+
+impl Chunker for CodeCppAstV1Chunker {
+    fn chunker_version(&self) -> &'static str { VERSION_LABEL }
+    // ... identical body — both languages use the same Block::Code → Chunk emission ...
+}
+```
+
+The actual symbol-formatting work happens in the EXTRACTOR (Task C). The chunker's job is to iterate blocks the extractor produced and emit Chunks. Both C and C++ chunkers are essentially identical bodies.
+
+- [ ] **Step 2**: Create `tests/fixtures/sample.cpp` (~50 lines, includes namespace + nested class + method + free fn + template):
+
+```cpp
+#include <string>
+#include <vector>
+
+namespace kebab {
+namespace chunk {
+
+class MdHeadingV1Chunker {
+public:
+    MdHeadingV1Chunker() = default;
+    ~MdHeadingV1Chunker() = default;
+
+    std::string chunk_doc(const std::string& doc) {
+        return doc;
+    }
+
+    int operator()(int x) const {
+        return x * 2;
+    }
+
+private:
+    int counter_ = 0;
+};
+
+template <typename T>
+T identity(T value) {
+    return value;
+}
+
+}  // namespace chunk
+
+void global_helper() {
+    // free function in kebab namespace
+}
+
+}  // namespace kebab
+
+int main() {
+    kebab::chunk::MdHeadingV1Chunker c;
+    return 0;
+}
+```
+
+Expected snapshot symbols (verify on first run, then codify):
+- `kebab::chunk::MdHeadingV1Chunker` (class unit)
+- `kebab::chunk::MdHeadingV1Chunker::MdHeadingV1Chunker` (constructor)
+- `kebab::chunk::MdHeadingV1Chunker::~MdHeadingV1Chunker` (destructor)
+- `kebab::chunk::MdHeadingV1Chunker::chunk_doc`
+- `kebab::chunk::MdHeadingV1Chunker::operator()`
+- `kebab::chunk::identity` (template fn)
+- `kebab::global_helper`
+- `main` (free fn, no namespace)
+- `<top-level>` (include + using)
+
+~9 chunks total.
+
+- [ ] **Step 3**: Create `tests/code_cpp_ast_snapshot.rs` mirroring `code_c_ast_snapshot.rs`. Assert symbol list matches expected (run once to learn the actual order, codify).
+
+- [ ] **Step 4**: Register module in `lib.rs`:
+
+```rust
+pub mod code_cpp_ast_v1;
+pub use code_cpp_ast_v1::CodeCppAstV1Chunker;
+```
+
+- [ ] **Step 5**: Run test:
+
+```bash
+cargo test -p kebab-chunk --test code_cpp_ast_snapshot -- --nocapture 2>&1 | tail -30
+```
+
+Expected: PASS.
+
+- [ ] **Step 6**: Clippy + commit:
+
+```bash
+cargo clippy -p kebab-chunk --all-targets -- -D warnings
+git add crates/kebab-chunk/src/code_cpp_ast_v1.rs \
+        crates/kebab-chunk/src/lib.rs \
+        crates/kebab-chunk/tests/fixtures/sample.cpp \
+        crates/kebab-chunk/tests/code_cpp_ast_snapshot.rs
+git commit -m "$(cat <<'EOF'
+feat(p10-1d): code-cpp-ast-v1 chunker + snapshot test
+
+Identical chunker body to code-c-ast-v1; per-language work happens in the
+CppAstExtractor (Task C). Snapshot fixture covers nested namespace +
+class + ctor/dtor + method + operator overload + template fn + free fn +
+top-level main, verifying namespace::Class::method symbol convention per
+design §3.4.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task F: ingest_one_code_asset dispatch + tier3 fallback list extension
+
+**Files:**
+- Modify: `crates/kebab-app/src/lib.rs`
+
+- [ ] **Step 1**: Top-of-file `use kebab_chunk::{...}` extend with `CodeCAstV1Chunker` + `CodeCppAstV1Chunker`:
+
+```rust
+use kebab_chunk::{
+    /* existing items */,
+    CodeCAstV1Chunker,
+    CodeCppAstV1Chunker,
+};
+```
+
+- [ ] **Step 2**: Allowlist (around line 953) extend:
+
+```rust
+if matches!(lang.as_str(),
+    "rust" | "python" | "typescript" | "javascript" | "go" | "java" | "kotlin"
+    | "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod"
+    | "shell"
+    | "c" | "cpp")
+```
+
+- [ ] **Step 3**: `parser_version` match — add C/C++ arms (Tier 1, so they DO get a real parser version):
+
+```rust
+let parser_version = match code_lang {
+    // ... existing 7 Tier 1 + Tier 2 + shell arms ...
+    "c"   => ParserVersion(kebab_parse_code::C_PARSER_VERSION.to_string()),
+    "cpp" => ParserVersion(kebab_parse_code::CPP_PARSER_VERSION.to_string()),
+    other => anyhow::bail!("unsupported code_lang: {other}"),
+};
+```
+
+- [ ] **Step 4**: `chunker_version` match — add C/C++ arms:
+
+```rust
+let chunker_version = match code_lang {
+    // ... existing arms ...
+    "c"   => CodeCAstV1Chunker.chunker_version(),
+    "cpp" => CodeCppAstV1Chunker.chunker_version(),
+    other => anyhow::bail!("unreachable chunker_version: {other}"),
+};
+```
+
+- [ ] **Step 5**: `canonical_result` extract match — add C/C++ arms:
+
+```rust
+let canonical_result: anyhow::Result<CanonicalDocument> = match code_lang {
+    "rust"   => RustAstExtractor::new().extract(&ctx, &bytes).context("..."),
+    // ... existing ...
+    "c"      => CAstExtractor::new().extract(&ctx, &bytes)
+                  .context("kb-parse-code::CAstExtractor::extract (code:c)"),
+    "cpp"    => CppAstExtractor::new().extract(&ctx, &bytes)
+                  .context("kb-parse-code::CppAstExtractor::extract (code:cpp)"),
+    // ... Tier 2 + shell ...
+    other => anyhow::bail!("unreachable (extract): {other}"),
+};
+```
+
+(Add `use kebab_parse_code::{CAstExtractor, CppAstExtractor};` at the top if not already wildcard-imported.)
+
+- [ ] **Step 6**: `chunks_result` match — add C/C++ arms:
+
+```rust
+let chunks_result: anyhow::Result<Vec<Chunk>> = if extract_fell_back {
+    // ... existing ...
+} else {
+    match code_lang {
+        "rust"   => CodeRustAstV1Chunker.chunk(&canonical, chunk_policy).context("..."),
+        // ... existing ...
+        "c"      => CodeCAstV1Chunker.chunk(&canonical, chunk_policy)
+                      .context("kb-chunk::CodeCAstV1Chunker::chunk (code:c)"),
+        "cpp"    => CodeCppAstV1Chunker.chunk(&canonical, chunk_policy)
+                      .context("kb-chunk::CodeCppAstV1Chunker::chunk (code:cpp)"),
+        // ... existing ...
+        other => anyhow::bail!("unreachable (chunk): {other}"),
+    }
+};
+```
+
+- [ ] **Step 7**: `tier3_fallback_cv` (p10-3 Critical fix) — C/C++ are fallback-eligible (extract may fail on `.h` C++ headers or malformed code):
+
+```rust
+let tier3_fallback_cv = match code_lang {
+    "rust" | "python" | "typescript" | "javascript"
+    | "go" | "java" | "kotlin"
+    | "yaml" | "dockerfile" | "toml" | "json" | "xml" | "groovy" | "go-mod"
+    | "c" | "cpp"   // p10-1d:
+        => Some(CodeTextParagraphV1Chunker.chunker_version()),
+    _ => None,
+};
+```
+
+(The exact location of this match is in `ingest_one_code_asset` between ~lines 1921-1927 per the p10-3 critical fix.)
+
+- [ ] **Step 8**: Build:
+
+```bash
+cargo build -p kebab-app 2>&1 | tail -5
+```
+
+Expected: clean.
+
+- [ ] **Step 9**: Per-crate test (no regression):
+
+```bash
+cargo test -p kebab-app --lib -- --nocapture 2>&1 | tail -10
+```
+
+Expected: 52 PASS (existing baseline).
+
+- [ ] **Step 10**: Clippy + commit:
+
+```bash
+cargo clippy -p kebab-app --all-targets -- -D warnings
+git add crates/kebab-app/src/lib.rs
+git commit -m "$(cat <<'EOF'
+feat(p10-1d): activate C + C++ in ingest_one_code_asset dispatch
+
+Extends 4-arm match (parser_version / chunker_version / extract / chunks)
++ allowlist + tier3_fallback_cv list with "c" + "cpp" arms. C uses
+CAstExtractor + CodeCAstV1Chunker; C++ uses CppAstExtractor +
+CodeCppAstV1Chunker. Both langs are Tier 3-fallback-eligible (e.g. .h
+file with C++ syntax may fail tree-sitter-c parse → Tier 3 paragraph
+fallback).
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task G: code_ingest_smoke integration tests (C + C++)
+
+**Files:**
+- Modify: `crates/kebab-app/tests/code_ingest_smoke.rs`
+
+- [ ] **Step 1**: Append 2 tests at the end of the file (mirror the existing tier1 tests `c_ast_v1_*` if present; if not, mirror `rust_ast_v1_*` or `go_ast_v1_*`):
+
+```rust
+#[test]
+fn tier1_c_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+    let workspace = env.workspace_root();
+    std::fs::write(
+        workspace.join("parser.c"),
+        "#include <stdio.h>\n\nint parse_record(const char *line) {\n    if (line == NULL) return -1;\n    return 0;\n}\n",
+    )
+    .unwrap();
+
+    let report = env.ingest().expect("ingest");
+    assert!(report.new_docs >= 1, "expected at least 1 new doc");
+
+    let hits = env.search_code_lang("c", "parse_record").expect("search");
+    assert!(!hits.is_empty(), "expected at least 1 c hit");
+
+    match &hits[0].citation {
+        Citation::Code { symbol, lang, .. } => {
+            assert_eq!(symbol.as_deref(), Some("parse_record"), "C symbol must be function name only");
+            assert_eq!(lang.as_deref(), Some("c"));
+        }
+        other => panic!("expected Citation::Code, got {other:?}"),
+    }
+    assert_eq!(
+        hits[0].chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-c-ast-v1"),
+    );
+}
+
+#[test]
+fn tier1_cpp_ingest_searchable() {
+    let env = TestEnv::lexical_only();
+    let workspace = env.workspace_root();
+    std::fs::write(
+        workspace.join("chunker.cpp"),
+        "namespace kebab {\nnamespace chunk {\nclass Foo {\npublic:\n    void bar() { /* impl */ }\n};\n}\n}\n",
+    )
+    .unwrap();
+
+    let report = env.ingest().expect("ingest");
+    assert!(report.new_docs >= 1);
+
+    let hits = env.search_code_lang("cpp", "bar").expect("search");
+    assert!(!hits.is_empty(), "expected at least 1 cpp hit");
+
+    match &hits[0].citation {
+        Citation::Code { symbol, lang, .. } => {
+            // Symbol could be "kebab::chunk::Foo::bar" or "kebab::chunk::Foo" depending on which chunk hits first.
+            assert!(
+                symbol.as_deref().map_or(false, |s| s.starts_with("kebab::chunk::Foo")),
+                "C++ symbol must start with namespace::Class prefix, got {:?}", symbol
+            );
+            assert_eq!(lang.as_deref(), Some("cpp"));
+        }
+        other => panic!("expected Citation::Code, got {other:?}"),
+    }
+    assert_eq!(
+        hits[0].chunker_version.as_ref().map(|c| c.0.as_str()),
+        Some("code-cpp-ast-v1"),
+    );
+}
+```
+
+- [ ] **Step 2**: Run tests:
+
+```bash
+cargo test -p kebab-app --test code_ingest_smoke tier1_c_ingest tier1_cpp_ingest -- --nocapture 2>&1 | tail -30
+```
+
+Expected: 2 PASS.
+
+- [ ] **Step 3**: Full smoke regression:
+
+```bash
+cargo test -p kebab-app --test code_ingest_smoke -- --nocapture 2>&1 | tail -30
+```
+
+Expected: 18 PASS (16 existing + 2 new).
+
+- [ ] **Step 4**: Clippy + commit:
+
+```bash
+cargo clippy -p kebab-app --tests -- -D warnings
+git add crates/kebab-app/tests/code_ingest_smoke.rs
+git commit -m "$(cat <<'EOF'
+test(p10-1d): integration smoke tests for C + C++
+
+Verifies end-to-end ingest + search + Citation::Code shape:
+- tier1_c_ingest_searchable: .c file → --code-lang c search → symbol
+  = function name (no nesting), lang = "c", chunker_version = "code-c-ast-v1".
+- tier1_cpp_ingest_searchable: .cpp file → --code-lang cpp search →
+  symbol starts with namespace::Class prefix, lang = "cpp",
+  chunker_version = "code-cpp-ast-v1".
+
+Brings code_ingest_smoke to 18 tests (Rust 3 + Python 1 + TS 1 + JS 1 +
+Go 1 + Java 1 + Kotlin 1 + yaml 1 + dockerfile 1 + manifest 1 + shell 1 +
+yaml-fallback 1 + 2 reingest-unchanged regression + c 1 + cpp 1).
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task H: frozen design §10 activation log
+
+**Files:**
+- Modify: `docs/superpowers/specs/2026-04-27-kebab-final-form-design.md`
+
+- [ ] **Step 1**: Find §10 activation log. Add p10-1D entry right after the p10-3 entry:
+
+```
+**p10-1D 활성화 (C + C++) (2026-05-21)**: Tier 1 chunker family 완료 — C (`code-c-ast-v1`, `.c`/`.h`) + C++ (`code-cpp-ast-v1`, `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx`) AST chunker 활성화. C symbol = function name only; C++ symbol = `namespace::Class::method` (recursive namespace + class nesting). `.h` 가 C++ syntax 만나면 tree-sitter-c parse 실패 → p10-3 Tier 3 fallback 으로 자동 picked up.
+```
+
+- [ ] **Step 2**: Commit:
+
+```bash
+git add docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md \
+        docs/superpowers/specs/2026-04-27-kebab-final-form-design.md 2>/dev/null
+git add docs/superpowers/specs/2026-04-27-kebab-final-form-design.md
+git commit -m "$(cat <<'EOF'
+docs(p10-1d): activate C + C++ in frozen design §10
+
+P10 Tier 1 chunker family complete.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task I: README + HANDOFF + ARCHITECTURE + SMOKE + tasks/INDEX + tasks/p10/INDEX
+
+**Files:**
+- Modify: `README.md` (Mermaid + ingest row), `HANDOFF.md`, `docs/ARCHITECTURE.md`, `docs/SMOKE.md`, `tasks/INDEX.md`, `tasks/p10/INDEX.md`
+
+- [ ] **Step 1 — README.md**: Update the `kebab ingest` row's supported-langs list to include `.c` / `.h` → `code-c-ast-v1` and `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx` → `code-cpp-ast-v1`. Extend `--code-lang c` / `--code-lang cpp` in the enumeration. Update the Mermaid `chunker[...]` node to include `code-c-ast-v1, code-cpp-ast-v1` in the brace.
+
+- [ ] **Step 2 — HANDOFF.md**: P10 row append `, **1D ✅ (C + C++ AST chunkers, code-c-ast-v1 + code-cpp-ast-v1 — v0.16.0)**`. Update 한 줄 요약 to include C/C++. Update 다음 후보 (drop p10-1D; remaining: P9-5 desktop / P8 audio).
+
+- [ ] **Step 3 — docs/ARCHITECTURE.md**: code parser table row: append C + C++ row mention. Flowchart `pcode` node: append `+ P10-1D`. Directory tree chunkers list: add `code_c_ast_v1.rs` + `code_cpp_ast_v1.rs`.
+
+- [ ] **Step 4 — docs/SMOKE.md**: Add a "## P10-1D C + C++ AST chunker" section after the P10-3 section. Walkthrough with sample.c + sample.cpp ingest + `--code-lang c` / `--code-lang cpp` search assertions. Append verification checklist entry.
+
+- [ ] **Step 5 — tasks/INDEX.md + tasks/p10/INDEX.md**: Flip p10-1D row ⏳ → ✅ (v0.16.0).
+
+- [ ] **Step 6**: Commit:
+
+```bash
+git add README.md HANDOFF.md docs/ARCHITECTURE.md docs/SMOKE.md tasks/INDEX.md tasks/p10/INDEX.md
+git commit -m "$(cat <<'EOF'
+docs(p10-1d): README/HANDOFF/ARCHITECTURE/SMOKE/INDEX sync
+
+P10 Tier 1 chunker family complete (Rust + Python + TS + JS + Go + Java +
+Kotlin + C + C++). Tier 2 (k8s + dockerfile + manifest) and Tier 3
+(paragraph fallback) already active. p10-1D 활성화 + ✅ flip.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+---
+
+## Task J: workspace test gate + clippy
+
+- [ ] **Step 1**: Disk check (`df -h /`) + optional `cargo clean`.
+
+- [ ] **Step 2**: `cargo test --workspace --no-fail-fast -j 1 2>&1 | tail -80`. Expected: all PASS.
+
+- [ ] **Step 3**: `cargo clippy --workspace --all-targets -- -D warnings 2>&1 | tail -30`. Expected: clean.
+
+---
+
+## Task K: version bump + gitea PR + release
+
+**Files:**
+- Modify: `Cargo.toml`
+
+- [ ] **Step 1**: Workspace `version = "0.15.0"` → `"0.16.0"`.
+
+- [ ] **Step 2**: `cargo build -p kebab-cli` to refresh Cargo.lock.
+
+- [ ] **Step 3**: Commit:
+
+```bash
+git add Cargo.toml Cargo.lock
+git commit -m "$(cat <<'EOF'
+chore: bump version 0.15.0 → 0.16.0 (p10-1d C + C++ AST chunkers)
+
+Minor bump — additive new chunker_versions code-c-ast-v1 + code-cpp-ast-v1
++ new routing langs c / cpp + new tree-sitter-c / tree-sitter-cpp workspace
+deps. P10 Tier 1 chunker family complete. No DB migration, no wire schema
+major bump.
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
+EOF
+)"
+```
+
+- [ ] **Step 4**: Push branch + open gitea PR via REST API. Title: `feat(p10-1d): C + C++ AST chunkers — P10 Tier 1 chunker family complete`.
+
+- [ ] **Step 5**: Wait for code-reviewer APPROVE → merge via gitea REST API → cut `gitea-release v0.16.0`.
+
+---
+
+## Verification matrix
+
+| 검증 | 명령 | 기대 |
+|------|------|------|
+| C symbol | `kebab search --code-lang c --json` | `Citation::Code.symbol = "<fn_name>"` |
+| C++ symbol | `kebab search --code-lang cpp --json` | `Citation::Code.symbol = "namespace::Class::method"` |
+| .h fallback | `.h` with C++ syntax → ingest | Tier 3 fallback: `chunker_version = "code-text-paragraph-v1"`, lang = c |
+| code_lang_breakdown | `kebab schema --json` | `"c": N`, `"cpp": M` |
+
+---
+
+## Risks reminder (구현 중 주의)
+
+- **tree-sitter grammar version resolution**: tree-sitter 0.26 호환 grammar. crates.io 최신 버전 default.
+- **tree-sitter-cpp 의 node-kind 명**: spec 의 가정 (`namespace_definition`, `class_specifier`, `function_definition`, `template_declaration`, `concept_definition`, etc.) 이 실제 grammar 와 일치하는지 fixture parse 로 검증.
+- **out-of-class method def 의 prefix 복원**: `void Foo::bar()` 의 declarator 가 `function_declarator > qualified_identifier > namespace_identifier "Foo" + identifier "bar"`. spec 의 `extract_fn_symbol` 이 이 chain 정확히 walk.
+- **Operator overload**: tree-sitter-cpp 의 `operator_name` 또는 `field_identifier` "operator+" 형태. fixture 로 검증.
+- **머지 후 deviation** 은 `tasks/HOTFIXES.md` dated 로그.

docs/superpowers/specs/2026-04-27-kebab-final-form-design.md

@@ -1545,6 +1545,16 @@ transitional 형태) 의 source of truth.
 
 **p10-1B 활성화 (Python / TypeScript / JavaScript) (2026-05-20)**: Python (`code-python-ast-v1`, `.py`), TypeScript (`code-ts-ast-v1`, `.ts`/`.tsx`), JavaScript (`code-js-ast-v1`, `.js`/`.mjs`/`.cjs`/`.jsx`) AST chunker 활성화. symbol path 는 workspace 경로 → module path prefix: Python = dotted (예: `kebab_eval.metrics.compute_mrr`), TypeScript/JavaScript = slash-style (예: `src/Foo.Foo.search`). Rust 1A-2 의 file-scope-only symbol 과 비일관 수용 (HOTFIXES 2026-05-20). expression-level 함수 (`const foo = () => {}`) 는 glue 처리 (HOTFIXES 2026-05-20).
 
+**p10-1C-Go 활성화 (Go) (2026-05-20)**: Go (`code-go-ast-v1`, `.go`) AST chunker 활성화. symbol = `<package>.<Func>` / `<package>.(*Receiver).<Method>` 형식.
+
+**p10-1C-JavaKotlin 활성화 (Java + Kotlin) (2026-05-20)**: Java (`code-java-ast-v1`, `.java`) + Kotlin (`code-kotlin-ast-v1`, `.kt`/`.kts`) AST chunker 활성화. symbol = `com.foo.Foo.bar` 형식 (패키지 + 클래스 + 메서드/필드). Kotlin grammar 은 `tree-sitter-kotlin-ng` 사용 (bare `tree-sitter-kotlin` 은 tree-sitter 0.21–0.23 고착으로 사용 불가).
+
+**p10-2 활성화 (Tier 2 chunker) (2026-05-20)**: Tier 2 resource-aware chunker 3종 활성화 — k8s-manifest-resource-v1 (`.yaml`/`.yml`), dockerfile-file-v1 (`Dockerfile`), manifest-file-v1 (`Cargo.toml` 등 설정 파일). 추가 code_lang 매핑: XML (`.xml`, `pom.xml`), Groovy (`build.gradle`, `.gradle`), Go module (`go.mod`).
+
+**p10-3 활성화 (Tier 3 paragraph fallback) (2026-05-21)**: Tier 3 chunker `code-text-paragraph-v1` 활성화. shell script (`.sh`/`.bash`/`.zsh`) direct routing + Tier 1/2 가 0 chunk 또는 Err 시 자동 fallback 으로 retry. 비-k8s YAML / invalid YAML / AST 실패 케이스 모두 picked up. lang 은 입력 보존 (shell → "shell", yaml → "yaml" 등), symbol 은 항상 None.
+
+**p10-1D 활성화 (C + C++) (2026-05-21)**: P10 Tier 1 chunker family 완료 — C (`code-c-ast-v1`, `.c`/`.h`) + C++ (`code-cpp-ast-v1`, `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx`) AST chunker 활성화. C symbol = function name only (no nesting); C++ symbol = `namespace::Class::method` (recursive namespace + class nesting). `.h` 가 C++ syntax 만나면 tree-sitter-c parse 실패 → p10-3 Tier 3 fallback 으로 자동 picked up.
+
 ### 10.2 MCP server transport (fb-30)
 
 `kebab mcp` 가 stdio JSON-RPC server. Rust SDK = `rmcp 1.6`. Tool surface

docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md

@@ -237,6 +237,9 @@ pub struct Metadata {
 - Dockerfile (`Dockerfile`, `*.dockerfile`) → `dockerfile`
 - TOML (`.toml`) → `toml`
 - JSON (`.json`) → `json`
+- XML (`.xml`, `pom.xml`) → `xml`
+- Groovy (`build.gradle`, `.gradle`) → `groovy`
+- Go module (`go.mod`) → `go-mod`
 - Shell (`.sh`, `.bash`, `.zsh`) → `shell`
 - Make (`Makefile`, `*.mk`) → `make`
 - 미지원 / Tier 3 fallback → null

docs/wire-schema/v1/reset_report.schema.json

@@ -14,12 +14,18 @@
     "schema_version":           { "const": "reset_report.v1" },
     "scope":                    {
       "type": "string",
-      "enum": ["all", "data_only", "vector_only", "config_only"]
+      "enum": ["all", "data_only", "vector_only", "config_only", "orphans_only"]
     },
     "removed_paths":            {
       "type": "array",
       "items": { "type": "string" }
     },
-    "embedding_rows_truncated": { "type": "integer", "minimum": 0 }
+    "embedding_rows_truncated": { "type": "integer", "minimum": 0 },
+    "orphans_purged":           { "type": "integer", "minimum": 0, "default": 0 },
+    "purged_paths":             {
+      "type": "array",
+      "items": { "type": "string" },
+      "default": []
+    }
   }
 }

tasks/HOTFIXES.md

@@ -14,6 +14,34 @@ historical contract that was implemented; this file accumulates the
 deltas so phase 5+ readers can find the live behavior without diffing
 git history.
 
+## 2026-05-21 — p10-2: k8s multi-resource YAML chunk_id collision
+
+**Origin**: P10 종합 도그푸딩 (`/tmp/kebab-p10-dogfood/`, 16 파일). 한 파일에 2+ k8s document (Deployment + Service, `---` 구분) 인 YAML 이 ingest 실패.
+
+**Symptom**: `DocumentStore::put_chunks (code): UNIQUE constraint failed: chunks.chunk_id`. document row 는 생성되나 chunk 0개 → 검색 불가. p10-2 의 통합 테스트 `tier2_k8s_yaml_ingest_searchable` 가 single-Deployment fixture 만 써서 미발견.
+
+**원인**: `tier2_shared::push_chunks_with_oversize` 의 non-oversize 분기가 `split_key = None` 하드코딩. `K8sManifestResourceV1Chunker` 가 resource 마다 호출 — 같은 document 의 모든 resource 가 `doc_id` + `chunker_version` + `base_policy_hash` 공유 + `split_key = None` → 동일 `id_hash` → 동일 `chunk_id`. p10-3 의 `code_text_paragraph_v1` 가 같은 버그였고 `df3c5b8` 에서 fix 됐지만 그건 `build_chunk_no_symbol` 직접 호출 경로, `push_chunks_with_oversize` 경로는 미수정.
+
+**Fix** (PR #158, v0.16.1): `push_chunks_with_oversize` 에 `base_split_key: Option<u32>` 추가. k8s chunker 가 `Some(resource.line_start)` 전달 → resource 별 distinct chunk_id. dockerfile / manifest 는 `None` (파일당 1 chunk, 충돌 없음, chunk_id 불변).
+
+**Deviation note**: single-resource k8s YAML 의 chunk_id 도 `None → Some(1)` 으로 바뀜 (`id_hash` 가 `base_policy_hash` → `base_policy_hash#L1`). `chunker_version` (`k8s-manifest-resource-v1`) 은 의도적으로 bump 안 함 — p10-2 가 v0.14.0 (~1주 전) 머지된 dogfood 단계라 prod KB 없음. v0.14.0~v0.16.0 사이 single-resource k8s 를 색인한 KB 는 re-ingest 시 old chunk 가 orphan 될 수 있으나 (UNIQUE 충돌 아님 — 다른 id), `kebab reset` 또는 re-ingest sweep 으로 정리됨. dogfood-only 단계라 chunker_version bump (전체 re-process) 보다 가벼운 선택.
+
+Cross-link: `tasks/p10/p10-2-tier2-resource-aware.md` Risks/notes section.
+
+## 2026-05-21 — p10-1D: typedef-wrapped struct/enum in C falls into glue
+
+**Origin**: PR #156 (p10-1d) code-reviewer review. Verified during dogfood.
+
+**Symptom**: `typedef struct { ... } Foo;` in a `.c` file does NOT emit a struct-level unit. tree-sitter-c classifies the construct as a top-level `type_definition` with an *anonymous* inner `struct_specifier` (no `name` field), so the extractor's `struct_specifier` arm doesn't fire — the whole declaration falls into `<top-level>` glue. The named typedef alias `Foo` is therefore not searchable as a symbol.
+
+**Status**: Consistent with spec p10-1d-c-cpp-ast-chunker.md's Risks/notes ("Anonymous union / struct … anonymous → glue"), but the spec's main body line 22 ("struct_specifier (named, top-level) → 1 unit") suggests this idiom WOULD emit. Tension noted, not yet fixed.
+
+**Workaround**: search the struct by its field/function names, or use `--code-lang c` to broaden scope. Typedef-aliased struct names won't surface as `Citation::Code.symbol`.
+
+**Next step**: dogfood real C code for a week+; if this turns out to be a frequent pain point (kernel-style code, libuv, etc.), revisit the extractor to detect `type_definition` → inner `struct_specifier` and emit a synthetic unit named after the typedef alias.
+
+Cross-link: `tasks/p10/p10-1d-c-cpp-ast-chunker.md` Risks/notes section.
+
 ## 2026-05-20 — p10-1B: Rust 1A-2 symbol path is file-scope-only; 1B+ uses workspace path → module prefix
 
 **무엇이 바뀌었나**: P10-1A-2 의 Rust `code-rust-ast-v1` chunker 가 생성하는 symbol 은 file-scope mod-path nesting 만 사용한다 (예: `Foo::double`). P10-1B 이후 Python / TypeScript / JavaScript 의 symbol 은 workspace 경로 → module path prefix 를 포함한다 (예: `kebab_eval.metrics.compute_mrr`, `src/Foo.Foo.search`).

tasks/INDEX.md

@@ -142,10 +142,11 @@ P0~P5 는 직렬. P6~P9 는 P5 이후 병렬 가능.
   - [p10-1A-1 code ingest framework](p10/p10-1a-1-code-ingest-framework.md) — ✅ 머지
   - [p10-1A-2 Rust AST chunker](p10/p10-1a-2-rust-ast-chunker.md) — ✅ 머지
   - [p10-1B Python + TS/JS AST chunkers](p10/p10-1b-py-ts-js-ast-chunkers.md) — 🟡 PR 오픈 (코드 완성, 머지 대기)
-  - p10-1C Go + Java + Kotlin AST chunkers — ⏳
-  - p10-1D C + C++ AST chunkers — ⏳
-  - p10-2 Tier 2 resource-aware — ⏳
-  - p10-3 Tier 3 paragraph + line-window fallback — ⏳
+  - p10-1C-Go Go AST chunker — 🟡 PR 오픈 (v0.12.0, `code-go-ast-v1`)
+  - p10-1C-JavaKotlin Java + Kotlin AST chunkers — 🟢 PR 오픈 (v0.13.0, `code-java-ast-v1` / `code-kotlin-ast-v1`)
+  - p10-1D C + C++ AST chunkers — ✅ 머지 (v0.16.0, `code-c-ast-v1` + `code-cpp-ast-v1`)
+  - p10-2 Tier 2 resource-aware — ✅ 머지 (v0.14.0, `k8s-manifest-resource-v1` / `dockerfile-file-v1` / `manifest-file-v1`)
+  - p10-3 Tier 3 paragraph + line-window fallback — ✅ 머지 (v0.15.0, `code-text-paragraph-v1`)
 
 ## Post-merge 핫픽스
 

tasks/p10/INDEX.md

@@ -5,9 +5,10 @@
 | 1A-1 | code ingest framework (wire schema, parse-code crate skeleton, filter flags, skip policy, config 절) | ✅ 머지 |
 | 1A-2 | Rust AST chunker | ✅ 머지 |
 | 1B | Python + TS/JS AST chunkers | 🟡 PR 오픈 (코드 완성, 머지 대기) |
-| 1C | Go + Java + Kotlin AST chunkers | ⏳ |
-| 1D | C + C++ AST chunkers | ⏳ |
-| 2 | Tier 2 resource-aware (k8s / Dockerfile / manifest) | ⏳ |
-| 3 | Tier 3 paragraph + line-window fallback | ⏳ |
+| 1C-Go | Go AST chunker (`code-go-ast-v1`) | 🟡 PR 오픈 (v0.12.0) |
+| 1C-JavaKotlin | Java + Kotlin AST chunkers (`code-java-ast-v1` / `code-kotlin-ast-v1`) | 🟢 PR 오픈 (v0.13.0) |
+| 1D | C + C++ AST chunkers | ✅ 머지 (v0.16.0) |
+| 2 | Tier 2 resource-aware (k8s / Dockerfile / manifest) | ✅ 머지 (v0.14.0) |
+| 3 | Tier 3 paragraph + line-window fallback | ✅ 머지 (v0.15.0) |
 
 Design: [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md)

tasks/p10/p10-1c-go-ast-chunker.md

@@ -0,0 +1,54 @@
+# p10-1C-Go — Go AST chunker
+
+**Status:** 🟡 진행 중
+**Contract sections:** §3.3 (chunker_version `code-go-ast-v1`), §3.4 (symbol path — Go `package.Func` / `package.(*Receiver).Method`), §3.5 (code_lang `go`, ext `.go`), §6.1 (`kebab-parse-code/src/go.rs`), §6.2 (`kebab-chunk/src/code_go_ast_v1.rs`), §9.1 (Tier 1 AST per-language + oversize fallback).
+**Design:** [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md) §1C (Go 부분 — Java + Kotlin 은 후속 PR).
+**Plan:** [2026-05-20-p10-1c-go-ast-chunker.md](../../docs/superpowers/plans/2026-05-20-p10-1c-go-ast-chunker.md).
+
+## Goal
+
+1A-2 / 1B 인프라 위에 Go AST chunker 활성화. 사용자 결정으로 1C 의 3 언어 (Go + Java + Kotlin) 를 2 PR 로 분할 — Go 가 method receiver / package convention 면에서 Java/Kotlin (JVM family) 과 다르므로 별 PR. 본 PR 머지 시점부터 Go 프로젝트 dogfooding 가능.
+
+## 동결된 설계 결정 (이 task 로 확정)
+
+- **Symbol path 의 package prefix = 소스 코드의 `package` 선언에서 추출** (design §3.4 그대로). 1B 의 workspace-path 변환과 다름 — Go 는 언어 자체에 `package` declaration 이 있어 그게 canonical source. tree-sitter-go 의 `source_file` root 의 첫 named child `package_clause` 에서 추출. 빈 경우 (이론상 invalid Go, 실용엔 거의 없음) `<unknown>` 또는 fallback `<package>` (1A `<module>` 패턴과 유사).
+- **Method receiver 표현** (design 예시 그대로): `package.(*Receiver).Method` (포인터 receiver), `package.(Receiver).Method` (value receiver). tree-sitter-go 의 `method_declaration` 의 `receiver` field 에서 type + pointer 여부 추출. 예: `func (m *MdHeadingV1Chunker) ChunkDoc(...)` → symbol `chunk.(*MdHeadingV1Chunker).ChunkDoc`.
+- **Top-level unit 종류**:
+  - `function_declaration` → 1 unit, symbol `package.Func`
+  - `method_declaration` → 1 unit, symbol `package.(*Receiver).Method` / `package.(Receiver).Method`
+  - `type_declaration` (struct / interface / type alias) → 1 unit each, symbol `package.TypeName`
+  - `const_declaration`, `var_declaration`, `import_declaration` (블록 또는 단일) → glue, grouped → `package.<top-level>` (1A/1B 패턴)
+- **Go 의 generic 처리**: `func Foo[T any](...)` 또는 `type Foo[T any] struct{}` 의 type parameter 는 symbol 에 미포함 (Go 자체도 보통 symbol 에 안 적음). 단순 `package.Foo` 만.
+- **Test detection**: Go 의 `func TestXxx(t *testing.T)` 는 *일반 fn 으로 emit*. test 감지 boost/penalty 등 ranking 영향은 본 task 범위 밖 (ranking brainstorm 보류 메모리 따름).
+- frozen design 자체는 변경 없음 (§3.4 의 Go 행이 이미 본 결정과 일치). §10.1 에 1C-Go 활성화 한 줄 추가.
+
+## Acceptance criteria
+
+- `cargo test --workspace --no-fail-fast -j 1` passes (memory-conscious: per-crate 위주, full-suite gate 는 docs task 직전 1회).
+- `cargo clippy --workspace --all-targets -- -D warnings` passes.
+- Go fixture (`tests/fixtures/sample.go`) ingest → chunk snapshot 안정 + `Citation::Code` 의 symbol 이 §3.4 컨벤션 일치 (`pkg.Func` / `pkg.(*Receiver).Method`).
+- 격리 TempDir KB 에 Go 파일 두고 `kebab search --code-lang go --json` 가 `Citation::Code { lang: "go", symbol: "...", ... }` 반환.
+- `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"go"` 카운트.
+- README + HANDOFF + ARCHITECTURE + SMOKE + tasks/INDEX + tasks/p10/INDEX 갱신.
+- frozen design §10.1 한 줄 추가.
+- workspace `Cargo.toml` minor bump (0.11.1 → 0.12.0).
+
+## Allowed dependencies
+
+- `kebab-parse-code` 에 `tree-sitter-go` 추가 (workspace deps). 기존 deps 유지.
+- `kebab-chunk` 의 새 모듈 `code_go_ast_v1.rs` — kebab-core + serde_json_canonicalizer + blake3 + anyhow + tracing. tree-sitter 절대 import 금지.
+- `kebab-app`, `kebab-source-fs` 변경 — 새 crate dep 없음.
+
+## Forbidden dependencies
+
+- `kebab-chunk` 가 `tree-sitter-go` 직접 import 금지.
+- UI crate 가 `kebab-parse-code` 직접 import 금지.
+- `kebab-parse-code` 가 store / embed / llm / rag 직접 import 금지.
+
+## Risks / notes
+
+- tree-sitter-go 의 `package_clause` node 가 root 의 첫 named child 인지 grammar 버전에 따라 다를 수 있음 — extractor 가 `source_file` 전체를 named_children iterate 하면서 첫 `package_clause` 잡는 방식이 안전.
+- `method_declaration` 의 receiver pointer 여부: tree-sitter-go AST 에서 receiver type 이 `pointer_type` 노드면 `*Receiver`, 그냥 `type_identifier` 면 `Receiver`. 정확한 텍스트 추출 필요.
+- Generic type parameter (`[T any]`) 가 method_declaration / function_declaration 의 name field 와 별도 child — name 만 추출하면 generic 부분 자동 제외.
+- 1B Python/TS/JS 패턴 (helpers from lang.rs) 와 *다른* 모델 — 본 task 의 mod_prefix 는 source-side AST 에서 추출, helper fn 불필요.
+- 머지 후 deviation 은 `tasks/HOTFIXES.md` 에 dated 로그 + 본 spec `Risks / notes` 에 one-line cross-link.

tasks/p10/p10-1c-jk-ast-chunker.md

@@ -0,0 +1,69 @@
+# p10-1C-JavaKotlin — Java + Kotlin AST chunkers
+
+**Status:** 🟡 진행 중
+**Contract sections:** §3.3 (chunker_version `code-java-ast-v1` + `code-kotlin-ast-v1`), §3.4 (symbol path — Java/Kotlin `package.Class.method`), §3.5 (code_lang `java` + `kotlin`, ext `.java` / `.kt` / `.kts`), §6.1 (`kebab-parse-code/src/{java,kotlin}.rs`), §6.2 (`kebab-chunk/src/code_{java,kotlin}_ast_v1.rs`), §9.1 (Tier 1 AST per-language + oversize fallback).
+**Design:** [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md) §1C (Java + Kotlin 부분 — Go 는 PR #151 / v0.12.0 별 PR 완료).
+**Plan:** [2026-05-20-p10-1c-jk-ast-chunker.md](../../docs/superpowers/plans/2026-05-20-p10-1c-jk-ast-chunker.md).
+
+## Goal
+
+1C-Go (PR #151 / v0.12.0) 의 자매 PR. 같은 1C phase 의 JVM family (Java + Kotlin) 묶음. 머지 시점부터 `.java` / `.kt` / `.kts` 파일 dogfooding 가능.
+
+## 동결된 설계 결정 (이 task 로 확정)
+
+- **Symbol prefix = 소스 코드의 `package` 선언에서 추출** (design §3.4 그대로, 1C-Go 모델과 동일). 1B 의 workspace-path 변환과 다름.
+  - **Java**: tree-sitter-java 의 `package_declaration` → 안의 `scoped_identifier` 또는 `identifier` 텍스트 (e.g. `com.kebab.chunk`). 없으면 `<unknown>`.
+  - **Kotlin**: tree-sitter-kotlin 의 `package_header` → `identifier` 텍스트. 없으면 (default package) `<unknown>`.
+- **Symbol 형식** (design §3.4): `package.Class.method`. 예시: `com.kebab.chunk.MdHeadingV1Chunker.chunkDoc`.
+- **Java AST mapping**:
+  - `class_declaration` (name) → 1 unit + recurse body
+  - `interface_declaration` (name) → 1 unit + recurse
+  - `enum_declaration` (name) → 1 unit
+  - `record_declaration` (Java 14+) (name) → 1 unit
+  - `annotation_type_declaration` → 1 unit
+  - Inside class/interface/enum: `method_declaration` (name) → unit `package.Class.method` (class nesting like 1B Python)
+  - `import_declaration`, `package_declaration` 자체 → glue `<top-level>` 
+  - Top-level fn 없음 (Java 자체에 없음)
+- **Kotlin AST mapping**:
+  - `class_declaration` (name) → 1 unit + recurse class_body. `data class` / `sealed class` / `enum class` 도 같은 노드.
+  - `object_declaration` (name) → 1 unit + recurse class_body (singleton)
+  - `function_declaration` (name) — **top-level 가능** → unit `package.fnName`. Class 내부면 `package.Class.method`.
+  - `property_declaration` at top-level → glue
+  - `interface` (in tree-sitter-kotlin 보통 `class_declaration` with `interface` modifier 또는 별 노드) → 1 unit
+  - `import_header`, `package_header` 자체 → glue `<top-level>`
+- **Glue grouping**: 1B Python / 1C-Go 패턴 동일 — imports + 기타 → 하나의 `<top-level>` (또는 `<module>` post-pass if file has zero real units).
+- **Tree-sitter Kotlin crate 선택**: tree-sitter-kotlin 의 가장 잘 유지되는 crate 사용 (`tree-sitter-kotlin` 또는 fork). resolve 시 active maintainer 확인.
+- frozen design 자체 변경 없음 — §10.1 에 1C-JK 활성화 한 줄.
+
+## Acceptance criteria
+
+- `cargo test --workspace --no-fail-fast -j 1` passes.
+- `cargo clippy --workspace --all-targets -- -D warnings` passes.
+- Java/Kotlin fixture 각각 (`tests/fixtures/sample.java`, `tests/fixtures/sample.kt`) ingest → chunk snapshot 안정 + symbol 이 §3.4 컨벤션 일치.
+- 격리 TempDir KB 에 `.java` / `.kt` 파일 두고 `kebab search --code-lang java --json` / `--code-lang kotlin --json` 가 `Citation::Code` 반환.
+- `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"java"` + `"kotlin"` 카운트.
+- README + HANDOFF + ARCHITECTURE + SMOKE + tasks/INDEX + tasks/p10/INDEX 갱신.
+- frozen design §10.1 한 줄.
+- workspace `Cargo.toml` minor bump (0.12.0 → 0.13.0).
+
+## Allowed dependencies
+
+- `kebab-parse-code` 에 `tree-sitter-java` + `tree-sitter-kotlin` 추가. 기존 deps 유지.
+- `kebab-chunk` 의 새 모듈 2개 (`code_java_ast_v1.rs`, `code_kotlin_ast_v1.rs`) — language-agnostic body. tree-sitter import 금지.
+- `kebab-app`, `kebab-source-fs` — 새 crate dep 없음.
+
+## Forbidden dependencies
+
+- `kebab-chunk` 가 tree-sitter-java / tree-sitter-kotlin import 금지 (boundary §6.3).
+- UI crate 가 `kebab-parse-code` 직접 import 금지.
+- `kebab-parse-code` 가 store / embed / llm / rag 직접 import 금지.
+
+## Risks / notes
+
+- tree-sitter-kotlin: 공식 또는 가장 활발히 유지되는 crate (`tree-sitter-kotlin` 또는 fork) 선택 필요. resolve 시 metadata 확인.
+- Kotlin 의 grammar 가 다른 tree-sitter-* 보다 update 빈도 낮을 수 있어 grammar field 명 변동 가능 — 테스트 fixture 로 contract 고정.
+- Java record (Java 14+) — tree-sitter-java 에서 `record_declaration` 노드 (확인 필요).
+- Kotlin sealed class / data class / object declaration 등 변종 노드 — tree-sitter-kotlin 의 정확한 node kind 명 확인 필요 (grammar.json / node-types.json).
+- Java class 안의 inner class — Python 패턴 (recursion with class name pushed) 동일 처리.
+- Kotlin top-level fn 은 1B Python 의 top-level fn 패턴 + 1C-Go 의 package-prefix 패턴 hybrid — `package.fnName`.
+- 머지 후 deviation 은 `tasks/HOTFIXES.md` dated 로그 + 본 spec `Risks / notes` cross-link.

tasks/p10/p10-1d-c-cpp-ast-chunker.md

@@ -0,0 +1,120 @@
+# p10-1D — C + C++ AST chunkers
+
+**Status:** 🟡 진행 중
+**Contract sections:** §3.3 (chunker_version `code-c-ast-v1` + `code-cpp-ast-v1`), §3.4 (symbol path — C `func_name`, C++ `namespace::Class::method`), §3.5 (code_lang `c` + `cpp`, ext `.c`/`.h` / `.cpp`/`.cc`/`.cxx`/`.hpp`/`.hh`/`.hxx`), §6.1 (`kebab-parse-code/src/{c,cpp}.rs`), §6.2 (`kebab-chunk/src/code_{c,cpp}_ast_v1.rs`), §9.1 (Tier 1 AST per-language + oversize fallback), §10 (activation log).
+**Design:** [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md) §1D (C + C++ 부분).
+**Plan:** [2026-05-21-p10-1d-c-cpp-ast-chunker.md](../../docs/superpowers/plans/2026-05-21-p10-1d-c-cpp-ast-chunker.md).
+
+## Goal
+
+p10-1A-2 / 1B / 1C / p10-2 / p10-3 인프라 위에 C + C++ AST chunker 2종을 단일 PR 로 활성화. P10 의 Tier 1 chunker family 마지막. 머지 시점부터 `.c` / `.h` / `.cpp` / `.cc` / `.cxx` / `.hpp` / `.hh` / `.hxx` 파일 dogfooding 가능.
+
+`.h` 가 design 명시대로 C 매핑 — C++ 프로젝트의 `.h` 는 tree-sitter-c 의 parse 가 namespace / template 같은 C++ syntax 에 실패할 가능성. 실패 시 p10-3 의 Tier 3 fallback 으로 자동 picked up (이미 wired).
+
+## 동결된 설계 결정 (이 task 로 확정)
+
+### C extractor (`code-c-ast-v1`)
+
+- **Symbol** = function name only. design §3.4 그대로 — no nesting, no namespace. 예: `parse_blocks`.
+- **Top-level units**:
+  - `function_definition` (named) → 1 unit, symbol = function name
+  - `struct_specifier` (named, top-level) → 1 unit, symbol = struct name
+  - `enum_specifier` (named, top-level) → 1 unit, symbol = enum name
+  - `union_specifier` (named, top-level) → 1 unit, symbol = union name
+  - `declaration` (top-level — typedef / global var / fn prototype) → glue `<top-level>`
+  - `preproc_include` / `preproc_def` / `preproc_function_def` / `preproc_ifdef` 등 preprocessor → glue `<top-level>`
+- **Static / extern / inline fn**: 일반 fn 과 동일 처리 (storage class qualifier 무시 — symbol 은 declarator 의 fn name 만).
+- **Inner struct / enum 안의 nested declaration** (C 도 가능): 1B Python class-nesting 미적용 — C 의 inner type 은 흔치 않고 outer 가 typedef wrapper 인 패턴이라 top-level 만 emit.
+- **Empty file 또는 unit 0개** → `<module>` post-pass (1A-2 패턴).
+
+### C++ extractor (`code-cpp-ast-v1`)
+
+- **Symbol** = `namespace::Class::method` (design §3.4 그대로). namespace 가 없으면 `Class::method` 또는 `func_name`. 예: `kebab::chunk::MdHeadingV1Chunker::chunk_doc`.
+- **Top-level units + recursion**:
+  - `namespace_definition` (named) → recurse with namespace name pushed (Python class-nesting + Java/Kotlin package-prefix hybrid).
+  - **Anonymous namespace** (`namespace { ... }`) → namespace name = `<anonymous>` push (Python `<unnamed>` 패턴 일관).
+  - `class_specifier` / `struct_specifier` (top-level or in namespace or nested in class, named) → recurse with class name pushed.
+  - `function_definition` (top-level or in namespace or in class) → 1 unit, symbol per nesting (`namespace::Class::method` / `namespace::func` / `Class::method` / `func_name`).
+  - `template_declaration` → 내부 declarator type 따라 recurse / emit (function template → method emit, class template → class recurse). template type params (`<T>`, `<typename T>`) 는 symbol 미포함 (Go generic 처리와 동일).
+  - `enum_specifier` (named) → 1 unit, symbol per nesting.
+  - `concept_definition` (C++20) → 1 unit, symbol per nesting (treat as type-level definition).
+  - `using_declaration` / `using_directive` / `preproc_include` / `preproc_def` 등 → glue `<top-level>`.
+  - `extern "C"` 블록 안의 정의 → 일반 fn 처리 (block 자체는 glue).
+- **Method out-of-class definition** (`Class::method` 형태로 namespace 밖에서 정의): tree-sitter-cpp 의 `function_declarator` 의 `qualified_identifier` 따라 prefix 복원 — declarator 의 `Class::method` 자체에서 추출.
+- **Operator overload** (`operator+`, `operator()` 등): symbol = `Class::operator+` 그대로.
+- **Constructor / destructor**: symbol = `Class::Class` / `Class::~Class` (convention).
+- **Empty file 또는 unit 0개** → `<module>` post-pass.
+
+### 공통
+
+- **`<top-level>` glue grouping**: preprocessor + global var + using 선언 등 의미 단위 외 → 1 glue chunk per file.
+- **Oversize fallback**: 1A-2 의 `AST_CHUNK_MAX_LINES = 200` 동일.
+- **`.h` 의 fallback 보장**: C parser 실패 시 p10-3 의 Tier 3 fallback wrapper (이미 wired) 가 picked up → `Citation::Code { symbol: None, lang: "c" }` + `code-text-paragraph-v1`.
+
+### Module layout
+
+```
+crates/kebab-parse-code/src/
+├── c.rs                            [신규] — C AST extractor (PARSER_VERSION `tree-sitter-c-<ver>`)
+├── cpp.rs                          [신규] — C++ AST extractor (PARSER_VERSION `tree-sitter-cpp-<ver>`)
+└── lib.rs                          [edit] — pub use + C_PARSER_VERSION / CPP_PARSER_VERSION 상수 노출
+
+crates/kebab-chunk/src/
+├── code_c_ast_v1.rs                [신규] — VERSION_LABEL `code-c-ast-v1`. 1A-2 패턴 (canonical Document → Vec<Chunk>).
+├── code_cpp_ast_v1.rs              [신규] — VERSION_LABEL `code-cpp-ast-v1`. 동일 패턴.
+└── lib.rs                          [edit] — pub use 2개
+
+crates/kebab-source-fs/src/media.rs  [편집 불요] — code_lang_for_path 위임 패턴 그대로 (Task C of p10-2 이후 단일 source of truth).
+
+crates/kebab-parse-code/src/lang.rs  [편집 불요] — `.c`/`.h`/`.cpp` 등 매핑은 1A-1 시점부터 이미 존재.
+
+crates/kebab-app/src/lib.rs          [edit] — ingest_one_code_asset 의 allowlist + 4-arm match 에 "c" + "cpp" 추가. tier3 fallback list 에도 둘 추가.
+
+crates/kebab-chunk/tests/             [신규]
+├── fixtures/sample.c                — C fixture (top-level fn + struct)
+├── fixtures/sample.cpp              — C++ fixture (namespace + class + method)
+├── code_c_ast_snapshot.rs           — C snapshot test
+└── code_cpp_ast_snapshot.rs         — C++ snapshot test
+
+crates/kebab-app/tests/code_ingest_smoke.rs [edit] — 2 신규 integration test (c + cpp). 16 + 2 = 18.
+
+Cargo.toml workspace.dependencies   [edit] — tree-sitter-c + tree-sitter-cpp.
+crates/kebab-parse-code/Cargo.toml  [edit] — 위 2 dep 신규 entry.
+```
+
+## Acceptance criteria
+
+- `cargo test --workspace --no-fail-fast -j 1` PASS (memory-conscious `-j 1`).
+- `cargo clippy --workspace --all-targets -- -D warnings` clean.
+- C fixture (`tests/fixtures/sample.c`) + C++ fixture (`tests/fixtures/sample.cpp`) ingest → chunk snapshot 안정. C snapshot 의 chunks 가 모두 `Citation::Code { lang: "c", symbol: Some(<fn|struct|enum name>), ... }`. C++ snapshot 의 chunks 가 namespace + class nesting 포함 (`kebab::chunk::Foo::bar`).
+- 격리 TempDir KB 에 `.c` / `.cpp` 파일 두고 `kebab search --code-lang c --json` / `--code-lang cpp --json` 가 각각 `Citation::Code` 반환. integration test `tier1_c_ingest_searchable` + `tier1_cpp_ingest_searchable` (기존 16 + 2 = 18).
+- `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"c"` + `"cpp"` 카운트 등장 (.c/.cpp 파일 ingest 후).
+- README + HANDOFF + docs/ARCHITECTURE + docs/SMOKE + tasks/INDEX + tasks/p10/INDEX 갱신.
+- frozen design 2026-04-27 §10 activation log 한 줄.
+- workspace `Cargo.toml` minor bump (0.15.0 → 0.16.0), gitea-release v0.16.0.
+
+## Allowed dependencies
+
+- `kebab-parse-code` 에 `tree-sitter-c` + `tree-sitter-cpp` workspace deps 추가. 기존 deps 유지.
+- `kebab-chunk` 의 새 모듈 2개 (`code_c_ast_v1.rs`, `code_cpp_ast_v1.rs`) — language-agnostic body, tree-sitter import 금지. 기존 `tier2_shared::build_chunk` (pub(crate)) 재사용.
+- `kebab-app`, `kebab-source-fs` — 새 crate dep 없음.
+
+## Forbidden dependencies
+
+- `kebab-chunk` 가 tree-sitter-c / tree-sitter-cpp 직접 import 금지 (boundary §6.3).
+- `kebab-parse-code` 가 store / embed / llm / rag 직접 import 금지.
+- UI crate (`kebab-cli` / `kebab-mcp` / `kebab-tui`) 가 `kebab-parse-code` / `kebab-chunk` 직접 import 금지 — `kebab-app` facade 만.
+
+## Risks / notes
+
+- **tree-sitter-c / tree-sitter-cpp 호환성**: tree-sitter 0.26 (현재 workspace) 과 호환 필요. resolve 시 `tree-sitter-language` shim 사용 fork (1C-JK 의 tree-sitter-kotlin-ng 패턴) 가능성 — crate.io 의 가장 활발한 maintainer 우선. 실패 시 별도 fork 검토.
+- **`.h` parse 실패**: C++ 헤더 (`namespace`, `template`, `class`) 를 C parser 가 만나면 partial parse + error nodes. 1A-2 의 extractor 패턴이 error node 무시 + recoverable parse 진행 — emit 결과가 *불완전* 할 가능성. 그럴 때 chunks 가 0 으로 떨어지면 p10-3 Tier 3 fallback 으로 자동 picked up (이미 wired). 부분 emit 시 일부만 색인 — Tier 3 fallback 안 함. dogfood 후 HOTFIXES 검토.
+- **Method out-of-class definition** (`Class::method` 형식): tree-sitter-cpp 의 `function_definition` 의 declarator 가 `qualified_identifier` 일 때 prefix 복원. fixture 로 검증.
+- **Template specialization** (`template<> class Foo<int>`): tree-sitter-cpp 의 `template_declaration` 안의 `class_specifier` name 만 추출 — `Foo` 만 symbol 에 들어가고 `<int>` 미포함. design 의 generic 무시 룰 일관.
+- **`extern "C"` block 안의 fn**: 일반 fn 처리. 외부 wrapping block 은 glue.
+- **Anonymous union / struct** (`struct { int x; }` 변수 안에): 흔치 않음 + named 만 unit. anonymous 는 glue.
+- **typedef-wrapped struct/enum idiom** (`typedef struct { ... } Foo;`) — anonymous inner struct → glue. Named typedef alias 미캡처. dogfood 후 HOTFIXES 검토. See [HOTFIXES.md 2026-05-21 entry](../HOTFIXES.md).
+- **Macro-heavy code** (Linux kernel 등): `#define FOO(x) ...` 매크로가 function-like 라도 parser 가 fn 으로 인식 안 함. preprocessor glue 로 처리 — symbol 안 잡힘. 의도된 동작 (parser 의 macro expansion 안 함).
+- **`__attribute__((...))`** annotations: tree-sitter-c 의 attribute 노드는 declarator 옆 sibling. 무시 가능. function name 추출에 영향 없음.
+- **fixture 크기**: sample.c 는 ~30 line (top-level fn + struct + enum + preprocessor), sample.cpp 는 ~50 line (nested namespace + class + method + template + free fn). oversize fallback 의 별도 검증은 1A-2 의 long_section_snapshot 패턴이 이미 cover (필요 시 별도 fixture).
+- **머지 후 deviation** 은 `tasks/HOTFIXES.md` dated 로그 + 본 spec `Risks / notes` cross-link.

tasks/p10/p10-2-tier2-resource-aware.md

@@ -0,0 +1,121 @@
+# p10-2 — Tier 2 resource-aware chunkers (k8s + Dockerfile + manifest)
+
+**Status:** 🟡 진행 중
+**Contract sections:** §3.3 (chunker_version `k8s-manifest-resource-v1` + `dockerfile-file-v1` + `manifest-file-v1`), §3.4 (citation symbol — `<kind>/<namespace>/<name>` / `<dockerfile>` / `<manifest>`), §3.5 (code_lang 추가 매핑 `xml` / `groovy` / `go-mod`), §6.1 (`kebab-parse-code/src/lang.rs` 갱신 + `kebab-source-fs/src/media.rs` 의 inline duplication 정리), §6.2 (`kebab-chunk/src/{k8s_manifest_resource_v1,dockerfile_file_v1,manifest_file_v1}.rs`), §9.2 (Tier 2 정의), §10.1 (deactivation log 한 줄).
+**Design:** [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md) §1.2 (Phase 2) + §9.2.
+**Plan:** [2026-05-20-p10-2-tier2-resource-aware.md](../../docs/superpowers/plans/2026-05-20-p10-2-tier2-resource-aware.md).
+
+## Goal
+
+p10-1A-2 / 1B / 1C 인프라 위에 Tier 2 resource-aware chunker 3종을 단일 PR 로 활성화. AST 가 아닌 file/document-level chunking — 1B (Python+TS+JS) 의 묶음 패턴 따름. 머지 시점부터 `.yaml` / `.yml` / `Dockerfile` / 매니페스트 7종 dogfooding 가능.
+
+비-k8s YAML (Helm values, CI yml, docker-compose 등) 및 invalid YAML 은 본 phase 에선 skip — p10-3 의 paragraph fallback 이 머지되면 자동으로 wire 됨.
+
+## 동결된 설계 결정 (이 task 로 확정)
+
+### 공통
+
+- **3 chunker = self-contained**. `kebab-parse-code` 에 Tier 2 용 extractor 모듈 추가 없음. lang.rs 의 `code_lang_for_path` 갱신만. AST 가 아니라 추상화 비용이 코드 보상보다 큼.
+- **`code_lang_for_path` = single source of truth** (design §3.5). `kebab-source-fs/src/media.rs` 의 inline 확장자 match 는 이 함수 호출로 통일 (1A-1 부터 누적된 duplication 정리, 작은 리팩토링).
+- **parser_version** = `"none-v1"` 통일. Tier 2 는 parse 단계가 없음을 명시하는 sentinel. chunker_version cascade 만 의미 있음.
+- **oversize fallback** = AST chunker 와 동일 정책 (`AST_CHUNK_MAX_LINES = 200` 초과 시 line-window split). 거대 ConfigMap / multi-stage Dockerfile / aggregate POM 대비. split chunk 는 같은 symbol 공유 (line range 만 다름).
+- **frozen design 갱신** (본 PR 안에서):
+  - §3.5 `code_lang` 매핑 표에 3 줄 추가:
+    - XML (`.xml`, `pom.xml`) → `xml`
+    - Groovy (`build.gradle`, `.gradle`) → `groovy`
+    - Go module (`go.mod`) → `go-mod`
+  - §10.1 deactivation log 한 줄 추가: "p10-2 활성화 — Tier 2 chunker 3종 active."
+
+### k8s-manifest-resource-v1
+
+- **Trigger**: `MediaType::Code("yaml")` (= `.yaml` / `.yml`).
+- **k8s 식별**: YAML document 의 top-level mapping 에 `apiVersion: <string>` + `kind: <string>` 둘 다 있어야 인정. 하나라도 없거나 string 타입이 아니면 그 document skip (전체 파일 skip 아님 — 다른 document 는 정상 처리).
+- **Multi-document split 구현**: `serde_yaml::Deserializer::from_str` 의 multi-document iterator 가 line offset 을 안 줘서, 원본 텍스트의 `^---\s*$` 줄 정규식 기준으로 pre-split 후 각 슬라이스를 deserialize. line_start/line_end 는 pre-split 단계에서 추적. trailing `---` 의 빈 슬라이스는 skip.
+- **Symbol**: `<kind>/<metadata.namespace>/<metadata.name>` (namespace 있으면) 또는 `<kind>/<metadata.name>` (cluster-scoped) 또는 `<kind>/<unnamed>` (name 누락). 예: `Deployment/prod/api-server`, `ClusterRole/cluster-admin`, `ConfigMap/<unnamed>`.
+- **Chunk text**: pre-split 슬라이스의 원본 텍스트 그대로 (deserialized form 아님 — 원본 보존).
+- **Citation**: `Citation::Code { path, line_start, line_end, symbol: Some(<위>), lang: Some("yaml") }`.
+- **Failure modes**:
+  - Invalid YAML (어떤 document 라도 deserialize 실패) → 파일 전체 emit 0 chunk + warning log `invalid yaml: {path}`. p10-3 의 paragraph fallback 이 picked up.
+  - 인정된 document 0개 (모두 비-k8s) → 파일 전체 emit 0 chunk. 동일 fallback.
+
+### dockerfile-file-v1
+
+- **Trigger**: `MediaType::Code("dockerfile")` — 파일명이 정확히 `Dockerfile`, 또는 prefix `Dockerfile.` (e.g. `Dockerfile.dev`), 또는 확장자 `.dockerfile` (e.g. `myapp.dockerfile`).
+- **Algorithm**: 파일 전체 텍스트 → 1 chunk emit.
+- **Symbol**: 통일 `<dockerfile>`.
+- **Citation**: `Citation::Code { path, line_start: 1, line_end: <EOF>, symbol: Some("<dockerfile>"), lang: Some("dockerfile") }`.
+
+### manifest-file-v1
+
+- **Trigger**: 파일명이 design §9.2 의 7종 중 하나:
+  | basename       | code_lang |
+  |----------------|-----------|
+  | `Cargo.toml`   | `toml`    |
+  | `pyproject.toml` | `toml`  |
+  | `package.json` | `json`    |
+  | `tsconfig.json`| `json`    |
+  | `go.mod`       | `go-mod`  |
+  | `pom.xml`      | `xml`     |
+  | `build.gradle` | `groovy`  |
+- **제외**: `build.gradle.kts` 는 1C-JK 의 Kotlin AST chunker (code-kotlin-ast-v1) 가 잡으므로 본 chunker 의 대상 아님.
+- **Algorithm**: 파일 전체 텍스트 → 1 chunk emit.
+- **Symbol**: 통일 `<manifest>` (7종 모두). manifest 종류 구분은 `code_lang` 으로 — 예: `--code-lang go-mod` 는 go.mod 만, `--code-lang toml` 은 Cargo.toml + pyproject.toml.
+- **Citation**: `Citation::Code { path, line_start: 1, line_end: <EOF>, symbol: Some("<manifest>"), lang: Some(<위 매핑>) }`.
+
+### Routing (kebab-app::ingest_one_code_asset)
+
+기존 7-arm AST match 옆에 Tier 2 분기 추가:
+
+```text
+"rust" | "python" | "typescript" | "javascript"
+  | "go" | "java" | "kotlin"      → 기존 AST chunker (1A-2 / 1B / 1C)
+"yaml"                            → k8s_manifest_resource_v1
+"dockerfile"                      → dockerfile_file_v1
+"toml" | "json" | "xml"
+  | "groovy" | "go-mod"           → manifest_file_v1
+_                                 → skip (p10-3 fallback 의 자리)
+```
+
+`code_lang_for_path` 의 lookup 순서: basename 우선 매칭 (`Cargo.toml` / `Dockerfile.*` / etc.) → 확장자 fallback (`.yaml` / `.toml` / etc.).
+
+## Acceptance criteria
+
+- `cargo test --workspace --no-fail-fast -j 1` passes (memory-conscious: per-crate 위주, full-suite gate 는 docs task 직전 1회).
+- `cargo clippy --workspace --all-targets -- -D warnings` passes.
+- 각 chunker 의 snapshot test 안정:
+  - `crates/kebab-chunk/tests/fixtures/sample.yaml` — 2 k8s doc (Deployment + Service) + 1 비-k8s doc (apiVersion 빠짐) → 2 chunk emit, 비-k8s doc skip.
+  - `crates/kebab-chunk/tests/fixtures/sample.dockerfile` → 1 chunk, symbol `<dockerfile>`.
+  - `crates/kebab-chunk/tests/fixtures/sample.Cargo.toml` + `sample.package.json` + `sample.pom.xml` + `sample.go.mod` (4종) → 각 1 chunk, symbol `<manifest>`, 매핑된 code_lang.
+- `code_lang_for_path` 의 basename 우선 매칭 + 확장자 fallback unit test.
+- 격리 TempDir KB 에 yaml + Dockerfile + Cargo.toml 두고 `kebab search --code-lang yaml --json` / `--code-lang dockerfile --json` / `--code-lang toml --json` 각각 `Citation::Code` 반환 (기존 `code_ingest_smoke.rs` 에 3 테스트 추가, 총 12 테스트).
+- `kebab schema --json | jq .stats.code_lang_breakdown` 에 `yaml` / `dockerfile` / `toml` / `json` / `xml` / `groovy` / `go-mod` 카운트 (사용된 것만 등장).
+- README + HANDOFF + docs/ARCHITECTURE + docs/SMOKE + tasks/INDEX + tasks/p10/INDEX 갱신.
+- frozen design §3.5 매핑 3 줄 + §10.1 활성화 한 줄.
+- workspace `Cargo.toml` minor bump (0.13.0 → 0.14.0), gitea-release v0.14.0.
+
+## Allowed dependencies
+
+- `kebab-chunk` 에 새 모듈 3개 (`k8s_manifest_resource_v1.rs` / `dockerfile_file_v1.rs` / `manifest_file_v1.rs`) 및 dep entry `serde_yaml = { workspace = true }` (workspace 에 이미 존재). 기존 deps (kebab-core / serde_json_canonicalizer / blake3 / anyhow / tracing) 유지.
+- `kebab-parse-code` 의 `lang.rs` 갱신만. extractor 모듈 추가 없음, 새 crate dep 없음.
+- `kebab-source-fs/src/media.rs` — `code_lang_for_path` 호출로 inline match 정리. 기존 dep 유지 (kebab-parse-code 는 이미 의존).
+- `kebab-app::ingest_one_code_asset` — match 분기 확장. 새 crate dep 없음.
+
+## Forbidden dependencies
+
+- `kebab-chunk` 가 store / embed / llm / rag / tree-sitter 직접 import 금지 (boundary §6.3 유지).
+- `kebab-parse-code` 가 store / embed / llm / rag 직접 import 금지.
+- UI crate (`kebab-cli` / `kebab-mcp` / `kebab-tui` / `kebab-desktop`) 가 `kebab-parse-code` / `kebab-chunk` 직접 import 금지 — `kebab-app` facade 만.
+
+## Risks / notes
+
+- **serde_yaml line offset 없음** → 원본 텍스트의 `^---\s*$` 정규식 split 으로 line 추적. trailing `---` 의 빈 슬라이스 / 첫 슬라이스에 `---` prefix 없음 / 비-표준 separator (예: `--- # comment`) 모두 fixture 로 검증.
+- **apiVersion / kind 가 string 이 아닌 경우** (예: `kind: 42`) — `serde_yaml::Value::as_str()` 으로 string 체크 후 인정. 비-string 이면 비-k8s 취급.
+- **cluster-scoped resource** (Namespace, ClusterRole, ClusterRoleBinding, …) — metadata.namespace 없음이 정상. symbol = `<kind>/<name>` 형태.
+- **metadata.name 누락** — 비정상이지만 panic 금지. `<kind>/<unnamed>` fallback + warning log.
+- **거대 ConfigMap / Helm-rendered manifest** — `AST_CHUNK_MAX_LINES = 200` oversize fallback. split chunk 가 같은 symbol 공유 → search 시 dedupe 또는 user-visible 두 hit 으로 보임 (1A-2 의 oversize 와 동일 동작).
+- **YAML anchor / merge keys (`&`, `<<`, `*`)** — serde_yaml 가 자동 resolve. 원본 텍스트 보존 정책상 chunk text 는 원본 (resolve 전) 유지, 파싱은 resolve 후 값으로.
+- **`Dockerfile.example` 같은 doc-purpose 파일** — 확장자/접두사 매칭에 잡힘. user intent 와 어긋날 수 있으나 본 phase 의 scope 밖 (skip 정책은 1A-1 의 size/built-in/generated 정책으로 통제). dogfood 후 false positive 빈도 보고 HOTFIXES 결정.
+- **`pom.xml` aggregate parent POM** — 매우 큼 (수백~수천 줄). oversize fallback 으로 split. 거대 fixture 로 한 번 검증.
+- **`media.rs` 정리** — 1A-1 부터 누적된 inline `match extension` duplication 을 `code_lang_for_path` 호출로 교체. 기존 단위 테스트 동작 보존 (테스트는 결과 값만 보므로 통과해야 함).
+- **머지 후 deviation** 은 `tasks/HOTFIXES.md` dated 로그 + 본 spec `Risks / notes` 에 one-line cross-link.
+- **[HOTFIXES 2026-05-21]** multi-resource k8s YAML (2+ document) 이 `chunk_id` 충돌로 ingest 실패 — `push_chunks_with_oversize` 의 non-oversize 분기가 `split_key = None` 하드코딩. PR #158 (v0.16.1) 에서 `base_split_key` 파라미터로 fix. See `tasks/HOTFIXES.md` 2026-05-21 entry.

tasks/p10/p10-3-tier3-paragraph-fallback.md

@@ -0,0 +1,116 @@
+# p10-3 — Tier 3 paragraph + line-window fallback chunker
+
+**Status:** 🟡 진행 중
+**Contract sections:** §3.3 (chunker_version `code-text-paragraph-v1`), §3.5 (code_lang routing — `shell` 활성화 + "미지원 / Tier 3 fallback" 명확화), §6.2 (`kebab-chunk/src/code_text_paragraph_v1.rs`), §6.3 (`tier2_shared::build_chunk` 의 `pub(crate)` 노출), §9.3 (Tier 3 정의), §10.1 (deactivation log 한 줄).
+**Design:** [2026-05-15-kebab-code-ingest-design.md](../../docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md) §1.3 (Phase 3) + §9.3.
+**Plan:** [2026-05-20-p10-3-tier3-paragraph-fallback.md](../../docs/superpowers/plans/2026-05-20-p10-3-tier3-paragraph-fallback.md).
+
+## Goal
+
+p10-1A-2 / 1B / 1C / 1A-1 의 framework + p10-2 Tier 2 인프라 위에 Tier 3 paragraph fallback chunker 활성화. 단일 PR. 머지 시점부터:
+
+- `.sh` / `.bash` / `.zsh` 파일이 paragraph 단위로 색인.
+- p10-2 의 비-k8s YAML / invalid YAML / Tier 1 AST extractor 실패 등 0-chunk 결과가 자동으로 Tier 3 로 fallback 되어 색인 — 이전에 skip 되던 파일이 search 가능.
+
+## 동결된 설계 결정 (이 task 로 확정)
+
+### chunker (`code-text-paragraph-v1`)
+
+- **Input**: `Document` with single `Block::Code { text, lang, ... }`. Tier 2 의 `synthesize_tier2_document` 와 동일한 모양 — fallback wrapper 가 같은 doc 재사용.
+- **VERSION_LABEL**: `"code-text-paragraph-v1"`.
+- **Paragraph 분할**: `text.lines()` 순회. 빈 줄 (정확히 빈 줄 또는 only-whitespace) 을 paragraph boundary 로. 빈 줄 자체는 어느 paragraph 에도 포함되지 않음 (chunk 의 line range 에 미포함). 빈 paragraph (전부 whitespace) skip.
+- **Paragraph 크기 룰** (design §9.3 default 그대로, hardcoded):
+  - paragraph line count ≤ 80 → 1 chunk emit.
+  - paragraph line count > 80 → line-window split with window size 80 / overlap 20 (stride 60). 즉 line 1-80, 61-140, 121-200, … 마지막 window 는 EOF 까지 (≤ 80 lines).
+  - `FALLBACK_LINES_PER_CHUNK = 80`, `FALLBACK_LINES_OVERLAP = 20` 둘 다 hardcoded constants (1A-2 의 `AST_CHUNK_MAX_LINES = 200` 패턴 그대로 — 사용자 config 노출 안 함, 미래 HOTFIXES 시 노출 검토).
+- **Citation**: `SourceSpan::Code { line_start, line_end, symbol: None, lang: <input lang> }`. `symbol = None` 통일 (Tier 3 는 의미 단위 식별 안 함). `lang` 은 입력 Document 의 `Block::Code.lang` 그대로 보존 — shell → `"shell"`, k8s skip → `"yaml"`, Rust extractor 실패 → `"rust"` 등.
+- **chunk_id 충돌 방지**: 동일 paragraph 의 line-window split 시 `id_for_chunk` 의 `split_key` 에 `window_start` 전달 (Tier 2 `#L{k}` 패턴 동일).
+- **Edge cases**:
+  - 전체 파일이 빈 줄만 → 0 chunk emit (fallback 의 fallback 없음). `tracing::warn!`.
+  - 단일 paragraph + ≤ 80 lines → 1 chunk, line range 1..N.
+  - 빈 줄 없는 거대 파일 (한 paragraph 전체) → line-window split.
+
+### Routing / fallback wrapper
+
+- **`code_lang_for_path`** 변경 없음 (shell 매핑은 1A-1 시점부터 이미 존재).
+- **`ingest_one_code_asset` allowlist** (`crates/kebab-app/src/lib.rs:953`) 에 `"shell"` 추가.
+- **4-arm match (parser_version / chunker_version / extract / chunks)** 에 `"shell"` arm 추가:
+  - parser_version = `"none-v1"` (Tier 2 sentinel 재사용).
+  - chunker_version = `CodeTextParagraphV1Chunker.chunker_version()`.
+  - extract = `synthesize_tier2_document(asset, &bytes, "shell", &parser_version)?` (재사용).
+  - chunks = `CodeTextParagraphV1Chunker.chunk(&canonical, chunk_policy)?`.
+- **Fallback wrapper** (핵심 신규 로직) — chunks match 직후 후처리:
+  - Tier 1/2 lang 의 결과가 `Err(_)` 또는 `Ok(empty_vec)` 이면 Tier 3 retry.
+  - retry 시:
+    - `chunker_version` 를 `code-text-paragraph-v1` 로 swap (downstream stamping 정확성).
+    - `canonical.parser_version` 도 `"none-v1"` 로 swap (Tier 1 의 `RUST_PARSER_VERSION` 등이 misleading 하므로).
+    - `CodeTextParagraphV1Chunker.chunk(&canonical, chunk_policy)` 실행.
+  - 실패 사유는 `tracing::warn!("tier1/2 emitted 0 chunks or errored for {workspace_path} ({code_lang}); falling back to tier 3")`.
+- **Tier 3 자체가 0 chunk 또는 Err** 인 경우는 그대로 fail/skip (fallback 의 fallback 없음).
+
+### `tier2_shared::build_chunk` 노출
+
+- 현재 module-private `fn build_chunk`. Tier 3 가 동일 Chunk 생성 (hash / token / policy_hash 일관) 을 위해 호출 — `pub(crate) fn build_chunk(...)` 으로 visibility 만 변경. signature 동일.
+
+### Lang 보존 정책
+
+- Tier 3 chunk 의 `Citation::Code.lang` = 입력 Document 의 `Block::Code.lang` 그대로. 명시적으로 표:
+  | Source | input lang | Tier 3 output lang |
+  |--------|-----------|----------|
+  | shell direct | `"shell"` | `"shell"` |
+  | k8s 0-chunk fallback | `"yaml"` | `"yaml"` |
+  | Rust AST 실패 fallback | `"rust"` | `"rust"` |
+  | manifest 0-chunk (이론상, 거의 발생 안 함) | `"toml"` 등 | 유지 |
+- 검색 시 `--code-lang shell` / `--code-lang yaml` 등이 fallback chunk 도 매칭 — search filter 동작 자연.
+
+### Non-scope
+
+- **미지원 확장자 wiring**: `.txt` / `.log` / `.scala` / `.rb` 등은 본 PR scope 밖. `code_lang_for_path` 의 매핑은 unchanged. Tier 3 chunker 자체는 만들어두고, 미래에 `code_lang_for_path` 에 새 lang 추가 시 자동 picked up (1A-2 패턴).
+- **config 노출**: `FALLBACK_LINES_PER_CHUNK` / `FALLBACK_LINES_OVERLAP` hardcoded. config.toml 노출 없음.
+
+### Frozen design 갱신
+
+- `docs/superpowers/specs/2026-05-15-kebab-code-ingest-design.md` §10.1 활성화 로그 한 줄.
+- `docs/superpowers/specs/2026-04-27-kebab-final-form-design.md` §10 activation log 한 줄.
+- §3.5 의 "미지원 / Tier 3 fallback → null" 표현은 그대로 유지 (해당 표현이 본 phase 의 정확한 의미 — Tier 3 chunk 의 lang 은 입력 lang 보존이므로 "null" 은 미지원 확장자 wire 시 적용).
+
+## Acceptance criteria
+
+- `cargo test --workspace --no-fail-fast -j 1` PASS (memory-conscious `-j 1`).
+- `cargo clippy --workspace --all-targets -- -D warnings` clean.
+- 4 신규 unit test in `crates/kebab-chunk/tests/code_text_paragraph_v1.rs`:
+  - `shell_multi_paragraph_splits_on_blank_lines` — 3-paragraph fixture → 3 chunk, symbol=None, lang=shell, contiguous (exclusive of blank lines).
+  - `single_long_paragraph_line_window_split` — 200+ line single paragraph → window split, distinct chunk_ids, expected line ranges (1-80, 61-140, 121-200, …).
+  - `empty_file_emits_zero_chunks` — 빈 텍스트 → `Ok(vec![])`.
+  - `lang_field_preserved_from_input_doc` — lang=yaml 입력 → emit chunk lang=yaml.
+- 2 신규 integration test in `crates/kebab-app/tests/code_ingest_smoke.rs`:
+  - `tier3_shell_ingest_searchable` — `.sh` 파일 ingest → `--code-lang shell` 검색 → `Citation::Code { symbol: None, lang: "shell" }`, `chunker_version: "code-text-paragraph-v1"`.
+  - `tier3_yaml_fallback_picks_up_non_k8s_yaml` — apiVersion+kind 없는 yaml ingest → fallback 발동 → `Citation::Code { symbol: None, lang: "yaml" }`, chunker_version `code-text-paragraph-v1`.
+- 기존 12 smoke test + 2 신규 = 14 testing surface. (Tier 1 9 + Tier 2 3 + Tier 3 2.)
+- `kebab schema --json | jq .stats.code_lang_breakdown` 에 `"shell"` 카운트 등장 (.sh 파일 ingest 후). 비-k8s YAML 도 `"yaml"` 카운트에 누적 (Tier 2 와 Tier 3 가 같은 lang).
+- README + HANDOFF + docs/ARCHITECTURE + docs/SMOKE + tasks/INDEX + tasks/p10/INDEX 갱신.
+- frozen design §10.1 + §10 activation log 한 줄씩.
+- workspace `Cargo.toml` minor bump (0.14.0 → 0.15.0), gitea-release v0.15.0.
+
+## Allowed dependencies
+
+- `kebab-chunk` 의 새 모듈 `code_text_paragraph_v1.rs` — kebab-core + anyhow + tracing. tier2_shared 의 `build_chunk` 호출 (visibility `pub(crate)` 로 노출). tree-sitter / serde_yaml 비사용.
+- `kebab-app::ingest_one_code_asset` — 4-arm match + allowlist + fallback wrapper 확장. 새 crate dep 없음.
+- `kebab-parse-code` — 변경 없음 (lang.rs 의 shell 매핑은 1A-1 부터 존재).
+- `kebab-source-fs` — 변경 없음 (media.rs 이미 `code_lang_for_path` 위임).
+
+## Forbidden dependencies
+
+- `kebab-chunk` 가 store / embed / llm / rag / tree-sitter 직접 import 금지 (boundary §6.3 유지).
+- UI crate (`kebab-cli` / `kebab-mcp` / `kebab-tui` / `kebab-desktop`) 가 `kebab-parse-code` / `kebab-chunk` 직접 import 금지 — `kebab-app` facade 만.
+
+## Risks / notes
+
+- **Fallback infinite loop 방지**: Tier 3 자체가 0 chunk 또는 Err 인 경우는 그대로 fail/skip — fallback 의 fallback 없음. 명시 spec.
+- **chunker_version swap 시 `try_skip_unchanged` 일관성**: fallback 발동 후 stored chunker_version = `code-text-paragraph-v1`. 다음 ingest 에 동일 파일 → 동일 chunker_version 으로 lookup 매칭 (skip 동작 OK). Tier 1 chunker 가 미래에 작동하기 시작하면 (예: tree-sitter grammar fix) cascade rule 로 incremental cache miss → 자동 reprocess 가 정상 동작.
+- **lang 보존 vs fallback 의미**: fallback chunk 의 lang 이 원본 lang 유지라 search filter `--code-lang yaml` 가 Tier 2 와 Tier 3 chunk 둘 다 매칭. 의도된 동작 — 사용자가 "yaml 파일 검색" 했을 때 모든 yaml 결과 표시.
+- **line-window overlap 의미**: 80/20 (stride 60) 은 design §9.3 default. 거대 paragraph (예: minified JSON 한 줄) 의 경우에도 동일 알고리즘 — 단 한 줄 = 한 line 이라 split 발생 안 함 (length 80 lines 기준). minified 의 경우 chunk 한 개에 매우 긴 텍스트가 들어가는데 이는 paragraph 분할 정책의 inherent limitation. 미래 HOTFIXES 검토.
+- **빈 줄 처리**: `^\s*$` 매칭 (whitespace-only) 줄을 paragraph boundary 로. 탭만 있는 줄 / CR-only 줄 등 edge case fixture 로 검증.
+- **shell line-comment 처리**: shell script 의 `# comment` 줄은 일반 line. paragraph 분할에 영향 없음 (빈 줄 아님). chunk 안에 그대로 보존.
+- **fallback wrapper 의 `canonical.parser_version` mutation**: Document 의 parser_version 을 Tier 3 fallback 시 `"none-v1"` 로 swap. CanonicalDocument 가 `mut` 로 받아져야 함. 이미 `let mut canonical = match ...` 이라 mut 가능. plan 단계 검증.
+- **머지 후 deviation** 은 `tasks/HOTFIXES.md` dated 로그 + 본 spec `Risks / notes` cross-link.