How to Stop AI Assistants From Repeating Solutions You Have Already Ruled Out

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AI assistants in multi-turn conversations repeatedly suggest options a user has already rejected because prior decisions are never written into the conversation context. Research on multi-turn AI interactions found a 'lost-in-the-middle' effect, where models focus heavily on the first and last turns, with references to middle turns dropping below 20%. This problem intensifies for senior professionals, whose rejections are often political or organizational rather than technical and therefore less likely to be documented. The recommended fix is to list ruled-out options with explicit reasons at the very start of a prompt, before stating the actual question. Including the rationale — not just the rejected option's name — prevents the assistant from reintroducing the same idea in a slightly different form.

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