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Claude Code's AGENTS.md Fallback Ends A Quiet Format War

This story is from 2026-09-19. It is preserved in the archive; the latest stories are on the live feed.

Originally published at vinpatel.com Everyone reading Claude Code's new AGENTS.md fallback as a compatibility footnote is missing the real story: Anthropic just admitted OpenAI's file format won. The change itself is small. Claude Code will now read AGENTS.md when a project has no Claude.md. One li…

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  1. 2026-09-19 07:13 · DEV Community — AI
    Claude Code's AGENTS.md Fallback Ends A Quiet Format War

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