Devil's Advocate with AI
Use AI to challenge an idea before you invest time, money or reputation in it.
Prompt
Act as a careful devil's advocate for the idea below. Challenge it fairly, not cynically. Look for weak assumptions, missing evidence, hidden costs and practical risks before I act.
Idea:
[IDEA]
Audience or users affected:
[WHO IT AFFECTS]
Goal:
[WHAT SUCCESS WOULD LOOK LIKE]
Known context:
[PASTE NOTES]
Please include:
- strongest argument for the idea
- strongest argument against it
- assumptions being made
- weak evidence or missing facts
- hidden costs or effort
- user behaviour risks
- ethical or trust concerns
- alternative explanations
- small tests to run next
- decision points before proceeding
Idea:
[IDEA]
Audience or users affected:
[WHO IT AFFECTS]
Goal:
[WHAT SUCCESS WOULD LOOK LIKE]
Known context:
[PASTE NOTES]
Please include:
- strongest argument for the idea
- strongest argument against it
- assumptions being made
- weak evidence or missing facts
- hidden costs or effort
- user behaviour risks
- ethical or trust concerns
- alternative explanations
- small tests to run next
- decision points before proceeding
Example Input
Idea: launching an expert prompt section on a practical AI website. Audience: everyday users and small businesses. Goal: help people find stronger prompts without overwhelming beginners. Context: existing prompt library has beginner and intermediate pages.
Example Output
A balanced challenge showing reasons for and against the idea, weak assumptions, missing evidence, hidden costs and practical tests.
Before you ask
Add the idea, who it affects, what success looks like and any known context or constraints.
Check before use
Check that the challenge is specific, fair and testable, with clear assumptions and next tests.
Common mistakes
Treating devil's advocate feedback as negativity instead of using it to improve the idea before committing.
Useful for:
Research
Works well with:
ChatGPT, Gemini, Copilot
Nova9 Tools
Need an idea or a better prompt?
Generate fresh ideas first, or go straight to the Prompt Builder if you already know what you want to create.
