17 lines
582 B
Markdown
17 lines
582 B
Markdown
# ADR-0025: Freeze first-stage candidate pools for reranking comparisons
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## Status
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Accepted — 2026-08-25.
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## Decision
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Control and reranked results must consume the same immutable ordered candidate pool, identified by
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suite case, embedding source, corpus and retrieval configuration. Persist IDs, scores and content
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hashes, never text. Top 40 is a ceiling, not permission to pad an in-scope pool.
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## Consequences
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Reranker gains cannot be caused by retrieval drift. A reranker cannot claim recovery of an item not
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present in the pool, and mismatched pools are non-comparable.
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