Verified65% confidenceFactExact time
Claude Code's official documentation explicitly states that it reads CLAUDE.md, not AGENTS.md.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
9/19/2026
First Seen
Valid until: 12/18/2026
Sources
Related Entities
Related Claims
UnverifiedCodex reads AGENTS.md layer by layer from the project root directory down to the working directory; Claude Code also reads it when there is no CLAUDE.md (v2.1.277 and above).75% similarUnverifiedIf both CLAUDE.md and AGENTS.md exist simultaneously, Claude Code gives precedence to CLAUDE.md, and the contents of AGENTS.md are ignored74% similarUnverifiedClaude Code's compatibility strategy is to read CLAUDE.md first and fall back to AGENTS.md when it is absent.73% similarUnverifiedClaude Code now supports reading the agents.md file; when connected to a folder without a Claude.md, it will instead read agents.md.73% similarUnverifiedStarting from v2.1.277, Claude Code by default reads AGENTS.md only when there is no CLAUDE.md, .claude/CLAUDE.md or CLAUDE.local.md on the path.72% similar
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