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Six CLAUDE.md files, six codewords: three at launch, two after a Read, one behind an env var

This story is from 2026-09-22. It is preserved in the archive; the latest stories are on the live feed.

We put a codeword in six CLAUDE.md files and found that the parent-directory, working-directory, and CLAUDE.local.md files were in the first request at about 1,600 tokens each, while the two subdirectory files cost 0 tokens until Claude read a file below them. The --add-dir file never reached the m…

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  1. 2026-09-22 02:17 · DEV Community — AI
    Six CLAUDE.md files, six codewords: three at launch, two after a Read, one behind an env var

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