What is meta-mcp-manager AGENTS.md?

A set of instructions for coding agents working on Meta MCP Manager, a self-hosted control system that connects many MCP servers through one retrieval-based endpoint.

Use it when developing, testing, securing, packaging, or documenting Meta MCP Manager and its commands for finding, inspecting, and calling tools.

It explains the existing project design and security requirements so agents can make changes that fit the architecture instead of creating a conflicting design.

How arthurkatcher/meta-mcp-manager configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to arthurkatcher/meta-mcp-manager. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/arthurkatcher/meta-mcp-manager/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/arthurkatcher/meta-mcp-manager

Made for: Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/arthurkatcher/meta-mcp-manager/agents-md/github.svg)](https://agentmods.dev/instructions/arthurkatcher/meta-mcp-manager/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/arthurkatcher/meta-mcp-manager/agents-md"><img src="https://agentmods.dev/badge/instructions/arthurkatcher/meta-mcp-manager/agents-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/arthurkatcher/meta-mcp-manager/agents-md"><img src="https://agentmods.dev/badge/instructions/arthurkatcher/meta-mcp-manager/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,586 This file is loaded in full into every session.

When invoked 1,586 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.01586	$0.01586
Opus 5.5	$0.00634	$0.00634
Sonnet 5.5	$0.00317	$0.00317
Haiku 4.5	$0.00159	$0.00159

Measured 2mo ago against content hash ca224d543407, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

meta-mcp-manager AGENTS.md scanned grade A with 1 finding 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 2mo 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.

Reads MCP configurationlowAgent snooping

mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.

2. **Config vs runtime** — `mcp.json` = how to connect; SQLite = catalog/health/activity/tokens.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

AGENTS.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Meta MCP Manager

Instructions for coding agents working in this repository.

Project

Meta MCP Manager (meta-manager) is a self-hosted control plane that federates many upstream MCP servers (stdio + Streamable HTTP) behind one retrieval-first MCP endpoint.

Clients (Cursor, Claude, ChatGPT, Grok, …) connect once and use a small fixed meta-tool surface instead of hundreds of upstream schemas:

search_tools → get_tool_schema → call_tool
list_servers · list_tools · stats
manage_servers · manage_auth   (admin)

Package: src/meta_manager/, CLI entrypoint meta
Version: 0.1.0 (MIT) — public OSS: https://github.com/arthurkatcher/meta-mcp-manager
Runtime: Python 3.11+, single-process SQLite, warm upstream pool
Audience: single-operator / small-team self-host today; multi-tenant SaaS is roadmap, not current scope

Orchestrator

Grok (xAI) is the primary orchestrator for this codebase in Arthur’s workspace:

Owns end-to-end implementation, hardening, tests, Docker/OSS packaging, and local runbooks.
Prefers small, reviewable changes that match existing ADRs over greenfield rewrites.
When multi-step work is needed, may spawn specialized subagents (explore / plan / review) but remains accountable for the final result and for not breaking the security model.
Does not treat “demo defaults” as production: public bind, weak keys, open DCR, and plaintext secrets are defects to fix or document, not features to expand.

Other agents (Claude Code, Cursor, CI bots) should follow this file and defer to the same ADRs.

Architecture (do not invent a second design)

Layer	Path	Role
Config	`config/`	Cursor-compatible `mcp.json`; keep `${env:VAR}` templates on disk; interpolate at runtime only
Runtime	`runtime/`	Warm pool; stdio serialize (ADR-003); HTTP concurrent after exclusive reconnect; SSRF; `envFile`
Catalog	`catalog/`	SQLite `servers` / `tools` + BM25 index
Edge	`edge/`	FastMCP meta-tools, auth context, rate limits, security headers / CSP
OAuth	`oauth/`	Outbound vault (Fernet) + inbound AS (PKCE, DCR, hashed tokens)
Audit	`audit/`	Meta-tool activity → SQLite `activity` (+ optional JSONL mirror)
Storage	`storage/`	One product DB: `{META_DATA_DIR}/meta.db` (schema versioned)
Admin	`admin/`	`manage_servers` / `manage_auth` service layer
Brand	`brand/`	Consent / landing pages, logos
CLI	`main.py`	`meta serve`, `meta backup`, …

Read the full file on GitHub · 125 lines

Changes

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.

2mo ago First seen · 125 lines · 1,586 tokens per session scan A ca224d543407

Subscribe to this mod's changes

meta-mcp-manager AGENTS.md is an instructions file published in the GitHub repository arthurkatcher/meta-mcp-manager (1 stars, last pushed 3mo ago), licensed MIT. It adds 1,586 tokens to every session, about $0.0063 per session on Opus 5.5. A static security scan graded it A with 1 finding (reads mcp configuration). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Building agents

meta-mcp-manager AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
meta-mcp-manager AGENTS.mdarthurkatcher/meta-mcp-manager	Instructions file	1	3mo ago	MIT	A	1,586	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

meta-mcp-manager: Instructions file for Codex