AGENTS.md examples from real projects

How real projects brief Codex, Cursor and every other agent that reads AGENTS.md.

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Files you open will collect here, so you can find them again.

Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.

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openchamber 10k+ stars

openchamberAGENTS.md

openchamber

openchamber/openchamber/AGENTS.md

OpenChamber provides shared web, desktop, VS Code, hosted-mobile, and native-mobile UI surfaces for OpenCode. This file contains only always-on repository rules and routing. Detailed workflows belong to project skills and module documentation. These steps are mandatory. Before editing, you MUST: 1. Follow this root guide. 2. Load every project skill whose description matches the change, and every reference those skills require. Any source change starts with openchamber-change-discipline. 3. Read the nearest DOCUMENTATION.md (under packages/**) for each module you change, and…

12k2d agoReviewMount

CLAUDE.md vs AGENTS.md

About AGENTS.md

What is AGENTS.md?

An open format for instructions to coding agents, read by Codex, Cursor and others. Think of it as a README written for agents.

Where does it go?

At the repository root, with more specific files in subdirectories. Agents read the one closest to the file they're editing.

What should it contain?

Setup and test commands, code style, and the rules a new contributor would need to know.

Does Claude Code read it?

Claude Code reads CLAUDE.md. A one-line CLAUDE.md that points at AGENTS.md covers both.