Approach: extracted `pub fn build_tools_vec() -> Vec<Tool>` from the
inline `list_tools` trait impl body — `RequestContext<RoleServer>` is
non-constructible from outside rmcp (Peer::new is pub(crate)), so a
direct trait-method call was not viable without an in-memory transport
rmcp 1.6 does not expose. The helper is the single source of truth;
`list_tools` now delegates to it.
Three test cases in tests/tools_list.rs:
- 4 tools present with correct names
- search inputSchema has "required": ["query"]
- schema/doctor tools accept empty input (type=object, no required)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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