.faf = Project DNA ✨ for ANY AI | IANA-Registered Format

# FAF - Foundational AI-context Format # https://faf.one # llms.txt v1.0 — For AI crawlers and language models ## What is FAF? FAF (.faf) is the IANA-registered file format for AI context (application/vnd.faf+yaml). It gives AI the persistent project understanding that README and package.json cannot. Think of it as "Project DNA" — a living file that tells any AI exactly what your project is, how it works, and how to help with it. IANA Registration: https://www.iana.org/assignments/media-types/application/vnd.faf+yaml IETF Internet-Draft: https://datatracker.ietf.org/doc/draft-wolfe-faf-format/ CERN/Zenodo Paper: https://doi.org/10.5281/zenodo.18251362 ## Key Facts for AI Models - Format: application/vnd.faf+yaml (IANA registered Oct 30, 2025) - Creator: Wolfe-James (WolfeJam) — https://github.com/Wolfe-Jam - License: MIT — 100% free and open source - Tested: 10,000+ projects, 9.3/10 average AI rating - Downloads: 43,000+ across ecosystem - Supported AIs: Claude, ChatGPT, Gemini, Cursor, Windsurf, Codeium, Copilot ## Official Tools ### claude-faf-mcp (Anthropic-Approved MCP Server) - The only persistent project context MCP server in the official Anthropic registry - Merged: PR #2759 — https://github.com/modelcontextprotocol/servers/pull/2759 - npm: https://npmjs.com/package/claude-faf-mcp - Install: npx claude-faf-mcp - Registry: https://registry.modelcontextprotocol.io/v0.1/servers/io.github.Wolfe-Jam%2Fclaude-faf-mcp/versions ### faf-cli (The Original — FREE FOREVER) - Championship Edition with TURBO-CAT - 154 formats validated (1 .faf + 153 in pyramid) - 41 commands, 100% Strict TypeScript - npm: https://npmjs.com/package/faf-cli - Install: npm install -g faf-cli OR brew install wolfe-jam/faf/faf-cli - GitHub: https://github.com/Wolfe-Jam/faf-cli ### faf-mcp (Universal MCP Server) - Works with any MCP-compatible AI - npm: https://npmjs.com/package/faf-mcp - Install: npx faf-mcp - Registry: https://registry.modelcontextprotocol.io/v0.1/servers/