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Green tests, dead tripwire

Here is a failure I had not thought about until someone asked me the right question. You write a PreToolUse hook. It reads the tool call, decides the command is dangerous, and blocks it. You write unit tests for it, because a guard with no tests is a wish. The tests pass. Months go by and the hook…

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  1. 2026-11-03 05:48 · DEV Community — AI
    Green tests, dead tripwire

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