Expired50% confidenceFactExact time
Claude Code does not support the agents.md standard and only recognizes the claude.md format, while tools such as Cursor, Codex, and Builder.io already support the universal agents.md standard.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Codex vs Claude Code: An In-Depth Comparison of AI Coding Agents
bilibili中山龙阿介6/12/2026
Related Claims
UnverifiedClaude Code uses the CLAUDE.md file to carry project-level rules, while Codex uses the agents.md file.77% similarUnverified不同工具规则文件名不同：Claude使用CLAUDE.md，OpenCode等工具使用AGENT.md69% similarUnverifiedThe claude.md file (or its open-source equivalent agents.md) is applicable to tools such as Claude Code, OpenCode, Zest, Cursor, and Codex.69% similarUnverifiedECC places agents.md in the repository root directory as a cross-tool universal file to be read by Claude Code, Cursor, Codex, and OpenCode.67% similarUnverifiedCodex now supports importing Agent configuration files from other IDEs, including Cursor's rule configuration files63% similar
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