Standard biomedical RAG resolves conflicting evidence silently in roughly three of every four queries. The fix is structural, not informational — and most of the upstream complexity teams add does not help. Ask a retrieval-augmented clinical assistant a simple question — does melatonin help with jet lag? — and the literature it retrieves will not agree with itself. The Cochrane review concluded that melatonin is remarkably effective, with eight of ten included trials showing reduced jet lag on…