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SuperBizAgent-java/devflow/projects/2026-07-27-rag-chunk-evidence-identity-dedup/brief.md
T
zhuyongxin 7ae9707a3b feat(harness,rag): dual LLM audit fields, run conclusion, and hybrid quality
Persist provider reasoning and assistant text separately on agent_reasoning_audit
(DeepSeekAssistantMessage path), extract diagnosis_run.conclusion, enrich RAG
tool audit (step_id/query/qualityScore), gate empty mysql tools, drop devtools,
and align MVP docs after live E2E verification.
2026-07-28 19:43:13 +08:00

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# Brief: rag-chunk-evidence-identity-dedup
## 背景
lookup_knowledge 同文档多 chunk 在后处理与投影阶段被 source 级去重吞掉。Hybrid 多路召回前必须先修证据身份与裁剪契约。
## 目标
- chunk 级 evidenceKey 身份
- 按 evidenceKey 去重 + 每文档 chunk 上限
- retrieve-k / return-n 分离
- Projector 保留同 source 不同 chunk
- 薄 KnowledgeSearchPort,为 Delivery 2 hybrid 铺路
## 范围
Delivery 1 only(见 `docs/Milvus-Hybrid接入清单.md` §1.1)。
## 非目标
hybrid schema、BM25、删 SDK、session dedup、邻块重建、模型 rerank。
## 分档
standard
## 关联 OpenSpec
`openspec/changes/rag-chunk-evidence-identity-dedup`