Implementations
February 26, 2026 · View on GitHub
Tools, SDKs, and servers that implement the FAF specification.
All implementations read or write project.faf files conforming to SPECIFICATION.md.
CLI
| Package | Version | Registry | Install |
|---|---|---|---|
| faf-cli | v4.5.0 | npm | npm i -g faf-cli |
63 commands. Generates project.faf from any codebase or GitHub URL.
MCP Servers
| Package | Platform | Registry | Install |
|---|---|---|---|
| claude-faf-mcp | Anthropic | npm | npm i -g claude-faf-mcp |
| faf-mcp | Universal | npm | npm i -g faf-mcp |
| grok-faf-mcp | xAI | npm | npm i -g grok-faf-mcp |
| gemini-faf-mcp | PyPI | pip install gemini-faf-mcp | |
| MCPaaS | Infrastructure | SaaS | mcpaas.live |
Compilers & Runtimes
| Component | Language | Output | Link |
|---|---|---|---|
| xai-faf-rust | Rust | Native binary + .fafb | GitHub |
| xai-faf-zig | Zig | 2.7KB WASM | GitHub |
| faf-wasm-sdk | Rust→WASM | 211KB browser runtime | GitHub |
| faf-rust-sdk | Rust | crates.io SDK | GitHub |
Browser
| Tool | Platform | Link |
|---|---|---|
| FAF Chrome Extension | Chrome Web Store | Install |
| fafdev.tools | Web | Try it |
AI Interop
faf-cli v4.5.0 generates all four AI instruction formats from a single project.faf:
| Format | Platform | Command |
|---|---|---|
CLAUDE.md | Anthropic Claude | faf bi-sync |
AGENTS.md | OpenAI Codex + 20 tools | faf agents export |
.cursorrules | Cursor IDE | faf cursor export |
GEMINI.md | Google Gemini | faf gemini export |
| All at once | Everything | faf bi-sync --all |
Add Your Implementation
Built something that reads or writes .faf files? Open a PR to add it here.