# Acceptance: rag-eval-hybrid-baseline

## Tasks

All tasks in OpenSpec `tasks.md` checked, including apply-discovered 6.x quality-gate fix.

## 静态验证

- Snapshot generator path: no required `retrieval.vector-store.mode`.
- README documents hybrid generation and offline/live split.

## 脚本验证

```text
.\scripts\prepare_rag_eval_seed.ps1
.\scripts\generate_rag_lookup_snapshots.ps1 -SearchMode hybrid -SkipEval
python scripts\eval_rag_retrieval.py --json-report eval/rag-retrieval/reports/baseline.json --markdown-report eval/rag-retrieval/reports/baseline.md
# Result: Evaluated 7 cases: passRate=1.0, recall@5=1.0, failed=0

mvn -Dtest=RetrievalScoreNormalizerTest,KnowledgeEvidencePostProcessorTest,LookupKnowledgeToolTest,VectorSearchServiceTest,VectorKnowledgeSearchAdapterHybridTest test
# exit 0
```

Fixture sample meta: `searchMode=hybrid`, `kbScope=rag-eval`.  
Fallback case: `UNFILTERED_VECTOR_RETRY` + `filtered_vector_low_quality`.

## 浏览器/人工

- 未做 UI 验证。

## 未验证 / 后续

- Dense vs hybrid dual-directory comparison report (knife-2).
- CI wiring of offline eval as required gate (optional process).
- Long-term calibration of hybrid PRECISE distribution under denseDistance quality.

## Specs

Main spec synced: `openspec/specs/rag-eval-offline-baseline/spec.md`.