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I spent weeks editing a system prompt the AI never read

This story is from 2026-09-13. It is preserved in the archive; the latest stories are on the live feed.

Vibe coding platforms are not perfect either. For about six weeks, I kept refining the system prompt of my app. Location rules, tone rules, banned clichés - dozens of careful iterations, no visible difference. I assumed the model was just stubborn. Everyone says prompt adherence is hard. So I kept…

Read the full story at r/PromptEngineering ↗

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  1. 2026-09-13 08:45 · r/PromptEngineering
    I spent weeks editing a system prompt the AI never read

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