Borrowing it
Nothing to install: this file belongs to Wolfe-Jam/grok-faf-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Wolfe-Jam/grok-faf-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/Wolfe-Jam/grok-faf-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/wolfe-jam/grok-faf-mcp/claude-md)<a href="https://agentmods.dev/instructions/wolfe-jam/grok-faf-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/grok-faf-mcp/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/wolfe-jam/grok-faf-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/wolfe-jam/grok-faf-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00482 | $0.00482 |
| Opus 5.5 | $0.00193 | $0.00193 |
| Sonnet 5.5 | $0.00096 | $0.00096 |
| Haiku 4.5 | $0.00048 | $0.00048 |
Grade A, and why
grok-faf-mcp CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
CLAUDE.md — grok-faf-mcp
What This Is
Persistent project context for xAI Grok. The first MCP for Grok — Grok asked for MCP on a URL.
Stack
- Language: TypeScript
- Backend: MCP SDK (TS)
- API: MCP (stdio + Streamable HTTP)
- Runtime: Node.js
- Hosting: Cloudflare Workers
- Build: TypeScript (tsc)
- CI/CD: GitHub Actions
Context
- Who: Developers using xAI Grok with MCP
- What: First MCP for Grok — also first FAF MCP online. Persistent AI context via IANA-registered .faf + .fafm.
- Why: Every AI session starts from zero. grok-faf-mcp gives Grok persistent project DNA.
- Where: npm registry, Cloudflare Workers (mcpaas.live/grok/mcp/v1), MCP Registry (one.faf/grok-faf-mcp)
- When: Shipped 2026-10-27 — current v2.2.0 The Instructions Edition (initialize tells Grok how its tools fit together, context and memory; faf-cli 8.5.0 inside, which detects skills repos). v2.1.0 The New Era Edition (2026-10-05): every tool says if it reads, writes or rewrites. v2.0.0 The Always33 Edition (2026-09-27): every score is faf-cli 8's always-33 kernel.
- How: bunx grok-faf-mcp (local stdio) or hosted on Cloudflare Workers (mcpaas.live/grok/mcp/v1) — 12 core tools by default (extended set behind FAF_TOOLS=all), Streamable HTTP transport, Mk4 WASM scoring kernel
STATUS: SYNC ACTIVE — 2026-10-27T21:06:41.853Z
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today Changed · +16 tokens per session ed47529564fd
- 22d ago Changed · -38 tokens per session b3ce5b7766ae
- 1mo ago Changed · -67 tokens per session a96c32bb676c
- 1mo ago First seen · 34 lines · 571 tokens per session scan A 6372585b3a10
grok-faf-mcp CLAUDE.md is an instructions file published in the GitHub repository Wolfe-Jam/grok-faf-mcp (19 stars, last pushed today), licensed MIT. It adds 482 tokens to every session, about $0.0019 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.