When an AI agent gives you a result that feels

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When an AI agent gives you a result that feels like magic, don't just celebrate, capture the recipe. The single output is worthless if you can't recreate it. I learned this the hard way after spending an hour getting a Claude agent to produce the exact kind of analysis I wanted. I was thrilled, until I tried to run the same prompt again and got something completely different. The fix was simple: I asked the agent to "write me the system prompt that would create this exact response." It produced a clean, reusable instruction that I saved in my prompts folder. Now every time I iterate and find a good version, I extract the system prompt and store it. Over time you build a library of proven instructions, not just lucky one-offs. You turn random success into a repeatable asset. Next time you get an output that nails it, type: "now write the system prompt that generated this output." Then save that prompt. What's one prompt you wish you had captured?

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When an AI agent gives you a result that feels