Borrowing it
Nothing to install: this file belongs to promobase/facebook-business-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/promobase/facebook-business-mcp/dev/CLAUDE.mdgit clone --depth 1 https://github.com/promobase/facebook-business-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/promobase/facebook-business-mcp/claude-md)<a href="https://agentmods.dev/instructions/promobase/facebook-business-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/promobase/facebook-business-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/promobase/facebook-business-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/promobase/facebook-business-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 | $0.00274 | $0.00274 |
| Opus 5 | $0.00137 | $0.00137 |
| Sonnet 5 | $0.00055 | $0.00055 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade A, and why
facebook-business-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 11d ago.
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
This is repo for facebook-business-mcp, server implementation of Model Context Protocol(MCP) wrapping the facebook business API. Implemneted using FastMCP. You can use tools to fetch the docs for reference.
Architecture
we installed facebook_business python sdk, the goal is to create MCP server for each resource group. e.g. Ad Account. Campaign, etc. Then, in the main,py we have a root MCP server, mounting the sub servers into it. We try to provide 100% type safety. you can look up the types params from the docs on Facebook marketing apis, and then call it using the python sdk. We use uv for pkg mgmt, so always do uv run something.py if you're trying to run. Ensure mcp servers are testable & robust.
Docs
- Meta Business API docs
- FastMCP docs This contains all the site map for how to use fastmcp & composing, etc.
- source code for python facebook business sdk is available
/Users/ruizeli/dev/promobase/facebook-python-business-sdk, read the README and source code for reference.
RULES
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.
- 11d ago First seen · 14 lines · 274 tokens per session scan A 55bb004b6a05
facebook-business-mcp CLAUDE.md is an instructions file published in the GitHub repository promobase/facebook-business-mcp (2 stars, last pushed 1y ago), licensed MIT. It adds 274 tokens to every session, about $0.0014 per session on Opus 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 2026-08-31.
Other instructions, from other repositories
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.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
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 oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).