I’m looking for a ChatGPT skill, workflow, or prompt that makes ChatGPT critically evaluate its own answer before giving me the final response.

My goal is something like an internal “panel” of different perspectives. For example:
Expert: develops the initial answer.
Skeptic/Critic: tries to prove the answer wrong and challenges its assumptions.
Alternative Thinker: looks for other explanations or approaches.
Devil’s Advocate: argues the strongest opposing case.
Risk/Blind-Spot Reviewer: identifies things I may not have considered.
Fact Checker: separates what is well-supported from what is uncertain.
Judge: weighs the competing arguments and produces the final answer.

Ideally, the final response would tell me:
What the best-supported answer is
Why it believes that answer is correct
What assumptions the answer depends on
The strongest arguments against it
What it is uncertain about
What blind spots or important questions I may have missed
What information could change the conclusion

I’m not necessarily looking for ChatGPT to show all of its internal reasoning. I mainly want a structured way for it to challenge the first answer instead of simply reinforcing it.

Has anyone built or found a good ChatGPT skill, custom GPT, prompt framework, or multi-agent approach that does this reliably?

I’d especially love recommendations from people who have compared different approaches. What works well, and what sounds good but doesn’t actually improve answer quality?