classic-irLocal BM25 code and text search + hybrid retrieval engine (SQLite FTS5 + RRF fusion). Use when finding code, searching notes/corpora, or first-pass retrieval before dense/rerank spend. Covers recall measurement and RM3-style expansion. Feeds breakthrough-finder stages retrieve/expand.
query-intelQuery rewriting + retrieval gating + outline-first synthesis. Use when a question needs decomposition (Step-Back/Least-to-Most), retrieve-or-skip decisions (CRAG/Self-RAG gates), or multi-source reports (STORM outline-first). Feeds breakthrough-finder stages plan/expand/synthesize.