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zhuyongxin 376ad0c241 feat(rag): hybrid multi-path search with RRF fusion

Add configurable hybrid mode on KnowledgeSearchPort that fuses dense
unfiltered, dense filtered, and lexical ranks via RRF while preserving
dense-compatible threshold scores. Archives Delivery 2 OpenSpec change.

2026-07-27 18:33:31 +08:00

427 B

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Tasks: rag-hybrid-search-rrf

1. Add RRF fusion utility
2. Extend KnowledgeSearchRequest/Hit metadata for fusion ranks
3. Implement hybrid multi-path search in VectorKnowledgeSearchAdapter
4. Wire retrieval.search.mode and rrf config
5. Pass mode from LookupKnowledgeTool / retriever
6. Unit tests for RRF and hybrid adapter ordering
7. Verify dense mode regression tests still pass

427 B Raw Blame History

Tasks: rag-hybrid-search-rrf

427 B

Raw Blame History