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What AI Chatbots Are Told Before You Type: A Developer's Guide to the system_prompts

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

Every time you open ChatGPT, Claude, Gemini, or an AI coding tool like Cursor, the model has already read a long set of instructions before your first message arrives. You never see those instructions, but they shape almost everything about how the assistant behaves: its tone, its formatting habits…

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  1. 2026-09-15 22:39 · DEV Community — AI
    What AI Chatbots Are Told Before You Type: A Developer's Guide to the system_prompts

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