The author checked 22,854 public GitHub repositories with at least 1,000 stars and a push in the previous 90 days, across thirteen languages, for a root AGENTS.md or CLAUDE.md. He found one in 6,006 of them (26.3%).
In the News: October 26, 2026 (Extra)
A census of 22,854 popular GitHub repositories finds 26.3% carry AGENTS.md or CLAUDE.md, and 74.0% of the directives inside give no reason.
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