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20 things AI coding agents get wrong: the config rules that stop them

This story is from 2026-10-20. It is preserved in the archive; the latest stories are on the live feed.

Every AI coding agent fails in patterns. Not random ones: the same mistakes, across Claude Code, Cursor, and Copilot, across stacks. I packaged the 20 I keep hitting into config rules, and this post walks through the five that do the most damage with the exact rule text for each. Why agents repeat…

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  1. 2026-10-20 12:37 · DEV Community — AI
    20 things AI coding agents get wrong: the config rules that stop them

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