Reranker Stage · SOP

Third-person analytical view of how a mature RAG pipeline thinks about the reranker. The skill is for an LLM agent that writes / reviews / debugs retrieval code — it teaches the cross-framework reranking discipline, not one vendor's API. For the per-framework API, descend to [[llamaindex]] (node postprocessors) or [[agentsop-hybrid-retrieval]] (the recall stage that feeds the reranker).

This is the C4 gap skill in the Phase-D enhance pass. The reranker SOP existed only buried inside [[llamaindex]] (OP-03 AddReranker, Stage 3 step 7, anti-pattern A6). It is the highest-ROI single addition to a naive RAG pipeline, so it earns a standalone overlay.

1 · 何时激活 (Activation Rules)

Activate when any holds: