# ADR-0027: Deterministic Advisor recommendations for retrieval pipelines

## Status

Accepted — 2026-08-25.

## Decision

Advisor derives pipeline metrics from completed fixed-pool runs and applies the same hard gates as
embedding recommendations. Typed target kind, verdict, evidence level, deltas, migration impact and
blockers are persisted. No weighted popularity score or automatic action is allowed.

## Consequences

`KEEP_CURRENT` is a successful evidence result. A future reranker recommendation can be expressed
without implying an embedding-space change or reindex.