keyword-expansion

# Skill: keyword-expansion ## Triggers & routing - **Trigger**: keyword expansion, synonyms, exclusions, queries.md, 关键词扩展, 同义词, 排除词. - **Use when**: 检索覆盖不足/噪声过大，或主题别名很多，需要系统化扩展与收敛检索词。 - **Skip if**: `queries.md` 已经能稳定检出覆盖面（无需扩大范围导致后续成本爆炸）。 - **Network**: none. - **Guardrail**: 保持可控的 query 数量；明确 exclusions；避免“无限扩展”。 ## Goal - Improve recall/precision of `queries.md` without drifting scope. ## Inputs - `queries.md` - Optional: `DECISIONS.md` scope notes ## Outputs - Updated `queries.md` ## Procedure (MUST FOLLOW) 1. Extract the current topic scope and exclusions. 2. Propose keyword expansions (synonyms, related terms, acronyms) and add explicit exclusions for common false positives. 3. Update `queries.md` with a clear “why” note for each change. ## Acceptance criteria (MUST CHECK) - [ ] `queries.md` contains updated keywords and excludes. - [ ] Changes do not contradict `DECISIONS.md` scope constraints. ## Troubleshooting ### Issue: keyword expansion causes scope drift **Fix**: - Re-read `DECISIONS.md` scope notes and add explicit exclusions in `queries.md` for common false positives. ### Issue: query count explodes and becomes unmanageable **Fix**: - Keep a small set of high-signal queries; merge synonyms into the same query where possible instead of adding many near-duplicates.