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What actually makes a prompt work better?

I've been messing around with prompts quite a bit lately and one thing I've noticed is that making a prompt longer doesn't necessarily make it better. Sometimes I'll write this huge prompt with 20 different instructions, examples, formatting rules etc. And then a simple 4-5 line prompt gives me a b…

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  1. 2026-09-22 05:29 · r/PromptEngineering
    What actually makes a prompt work better?

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