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I measured whether Claude Code actually follows my CLAUDE.md

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

Everybody writes a CLAUDE.md. Almost nobody checks whether it gets followed. I stopped assuming and built a small tool to check, and the results were worse, and more interesting, than I expected. Disclosure up front: the tool is mine, it's npx rulereceipt , source-available. This post is about what…

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  1. 2026-09-21 13:50 · DEV Community — AI
    I measured whether Claude Code actually follows my CLAUDE.md

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