SpecificationsOpen Source✦ Free Tier

AGENTS.md

The convention for telling AI coding agents how to work in your repo

Dev Productivity
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About

AGENTS.md is the cross-vendor markdown file that AI coding agents (Claude Code, Cursor, Codex, Aider, etc.) read for repo-specific instructions, conventions, and constraints. The de-facto spec for codifying your team's preferences so every agent behaves the same.

Choose AGENTS.md when…

  • •You use multiple AI coding tools and want consistent behavior across them
  • •You want one place to encode repo conventions for agents
  • •You're tired of duplicating .cursorrules / .clinerules / CLAUDE.md content

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How do you define what you're building?Optional for most stacks

Spec writing, API design, architecture diagrams, and contract-first tooling — the upstream layer before code is written

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Other tools in this slot:

Spec KitMermaidEraserSwagger / OpenAPIRedoclyAsyncAPIStoplightSpeakeasy+4 more

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AIchitect's Genome scanner detects AGENTS.md in your project via these signals:

config files
AGENTS.md

Pricing

✦ Free tier available

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