# Agent-Friendly Documentation Spec > A specification defining 23 checks across 7 categories for evaluating how well documentation sites serve coding agents. ## Docs - [Full Spec](https://agentdocsspec.com/spec/index.md): The complete specification with all checks, thresholds, and implementation guidance. - [Platforms](https://agentdocsspec.com/platforms/index.md): Comparison of agent platforms across retrieval, truncation, and summarization behavior. - [Home](https://agentdocsspec.com/index.md): Overview, quick start guide, and background links. ## Tools - [afdocs](https://github.com/agent-ecosystem/afdocs): CLI tool and Node.js library that implements this spec. Run `npx afdocs check ` to test a documentation site.