zhuyongxin
ac1f831903
Preserve same-document multi-chunk evidence with evidenceKey identity, per-document caps, retrieve-k/return-n split, and a dense KnowledgeSearchPort. Archives Delivery 1 OpenSpec change as the foundation for hybrid retrieval.
25 lines
1.1 KiB
Markdown
25 lines
1.1 KiB
Markdown
# rag-knowledge-retrieval Delta
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## MODIFIED Requirements
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### Requirement: Knowledge retrieval SHALL deduplicate evidence blocks
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The retrieval flow SHALL remove duplicate evidence blocks before returning them to the Agent. Duplicates are defined by chunk-level `evidenceKey` identity, not by document source alone.
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#### Scenario: Chunk-level deduplication keeps distinct chunks
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- **WHEN** L1 produces multiple candidates with the same source but different chunk identities
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- **THEN** the retrieval flow SHALL keep separate evidence blocks for those chunk identities subject to per-document caps
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- **AND** SHALL NOT collapse them solely because source is equal
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#### Scenario: Same evidenceKey collapses
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- **WHEN** two candidates share the same evidenceKey
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- **THEN** the retrieval flow SHALL keep a single evidence block for that identity
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- **AND** the evidence block SHALL preserve hit reasons from both paths when available
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#### Scenario: Postprocess count tracking
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- **WHEN** evidence post-processing completes
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- **THEN** the tool invocation details SHALL record candidate count and final evidence block count
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