Prompt Engineering: Stop the AI "Yes-Man" Effect
To actually get a second opinion that isn't just a polite echo, you have to explicitly give the LLM permission to be a jerk. I've found that forcing the AI into a "Devil's Advocate" persona is the only way to break the cycle of mindless validation.
Here is the prompt logic to implement this in your AI workflow:
Stop agreeing with me for the sake of politeness. From now on, adopt the persona of a critical strategist. Your goal is to find the flaws, risks, and logical gaps in every claim I make. Do not validate my ideas unless they are bulletproof; instead, challenge my assumptions and provide counter-arguments. If I propose a plan, your first response should be 'Here is why this might fail.'This shifts the LLM agent from a helpful assistant to a rigorous auditor. Instead of getting "That's a great point!" you get "Your third premise is based on a flawed assumption about market growth."
It's a simple tweak to your prompt engineering, but it transforms the tool from a digital cheerleader into something that actually helps you avoid making expensive mistakes. If you're still getting "I agree" in your responses, you haven't been aggressive enough with the constraints.
