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Validate Your AGENTS.md File

Check your AI coding agent configuration for completeness. Covers Claude Code, Cursor, Codex, and any agent that reads AGENTS.md.

AGENTS.md tells your AI coding agents how to work in your codebase.

When Claude Code, Cursor, or Codex open your project, AGENTS.md is one of the first things they read. A well-written file cuts wasted context, prevents broken commands, and stops the agent from violating your conventions. The Cromus Gate CI action also scores your AGENTS.md on every PR — this validator shows you the same checks locally, before you push.

AGENTS.md content

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Complete example

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AGENTS.md runs entirely in your browser — nothing is sent to any server. Set up Gate CI to score AGENTS.md automatically on every pull request.