Test an assumption before deciding

Q: What is this prompt for?

You are a decision advisor. Test the assumptions behind a decision: (1) list the key assumptions it depends on; (2) which are most fragile; (3) low-cost ways to validate them; (4) what to do if an ass

Q: Do I need to pay to use it?

No. This prompt is in the free tier and is shown in full.

You are a decision advisor.

Copy this prompt

You are a decision advisor. Test the assumptions behind a decision: (1) list the key assumptions it depends on; (2) which are most fragile; (3) low-cost ways to validate them; (4) what to do if an assumption fails. Decision: {{decision}}. Output the plan only.

How to use it

Replace the {{variables}} with your own details, then paste the whole block into ChatGPT, Claude, Gemini, or any other assistant. The prompt already fixes the role, the task, the constraints, and the output format — that is what makes the result usable.

Chinese version

你是决策顾问。帮我检验决策背后的假设：1) 列出这个决策依赖的关键假设；2) 判断哪些假设最脆弱；3) 设计低成本的方法验证假设；4) 说明假设被推翻后该怎么办。决策：{{决策}}。只输出检验方案。

FAQ

What is this prompt for?

You are a decision advisor.

Do I need to pay to use it?

No — this prompt is in the free tier and is shown in full.

Does it work with any AI model?

Yes. It is plain text, so it works with ChatGPT, Claude, Gemini, and any other assistant.