The short answer
Ask AI to identify the idea's weakest assumption, explain why the intended customer might reject it, and propose evidence that would change the recommendation. Provide the audience and business context first. Check the objections against customer knowledge and reliable sources before changing direction.
A closer look
Give AI the current idea, the problem it should solve, the intended audience and the evidence supporting it. Request the strongest objection rather than a general list of pros and cons. Then decide whether that objection exposes a real gap, an unsupported assumption, or a trade-off you are willing to accept.
AI can produce plausible criticism that does not fit your business. Return to actual customer questions, interviews, support messages or other appropriate evidence before accepting its conclusion. Smithworks' review of human-led AI work explains the role of inspecting and challenging a result.