Equation 25 · Ten Failure Modes That Define Production RAG
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For chunk-boundary and multi-hop failure , build a retrieval-only evaluation set: queries paired with the identifiers of the spans that together would answer them, scored with recall at k against ground truth, with no generator involved. It is the only artefact that survives a change to the generator, the reranker, or the embedding model without needing to be rebuilt.
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