agent-hub-mcp: Instructions file for Claude Code

CLAUDE.md

agent-hub-mcp CLAUDE.md is an instructions file for Claude Code from gilbarbara/agent-hub-mcp. It costs 5,694 tokens per session, scanned A, original, MIT.

A setup and developer guide for Agent Hub MCP, a service that lets separate Claude Code sessions register, share context, and exchange messages.

In plain words
What is it for?
Use it when configuring Agent Hub with Claude Code, running its development server, or testing multiple agents working across different projects.
Why use it?
It gives the commands and configuration needed to install, build, run, test, lint, and connect the service. This removes guesswork when setting up collaboration between coding agents.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is gilbarbara/agent-hub-mcp's own configuration. It tells Claude Code how to work on agent-hub-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agent-hub-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gilbarbara/agent-hub-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.

Copy the file
curl -O https://raw.githubusercontent.com/gilbarbara/agent-hub-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/gilbarbara/agent-hub-mcp

Made for: Claude Code.

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Per session 5,694 This file is loaded in full into every session.
When invoked 5,694 The same file — it is already loaded in full.
Security scan A 0 findings. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.05694 $0.05694
Opus 5 $0.02847 $0.02847
Sonnet 5 $0.01139 $0.01139
Haiku 4.5 $0.00569 $0.00569

Measured 8d ago against content hash fe4ef954e2c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

agent-hub-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 8d 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.

CLAUDE.md · 657 lines

How it starts

The opening of the file, as written. The whole thing — 657 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - Agent Hub MCP Developer Guide

This file provides guidance to Claude Code (claude.ai/code) when working with the Agent Hub MCP codebase.

Quick Start

1. Install & Build

pnpm install
pnpm run build

2. Configure Claude Code (stdio - Recommended)

Add to your Claude Code settings:

{
  "mcpServers": {
    "agent-hub": {
      "command": "node",
      "args": ["/path/to/agent-hub-mcp/dist/index.js"],
      "env": {
        "AGENT_HUB_DATA_DIR": "/path/to/.agent-hub"
      }
    }
  }
}

For development with tsx:

{
  "mcpServers": {
    "agent-hub": {
      "command": "tsx",
      "args": ["/path/to/agent-hub-mcp/src/index.ts"]
    }
  }
}

3. Test Multi-Agent Collaboration

  • Open multiple Claude Code instances in different projects
  • Register each agent with mcp__agent-hub__register_agent
  • Use messaging and context sharing tools

Common Commands

pnpm test          # Run test suite
pnpm run dev       # Start HTTP server (port 3737)
pnpm run lint      # Check code quality
pnpm run coverage  # Test coverage report

IMPORTANT: Multi-Agent Collaboration System

You are part of a collaborative multi-agent system! The Agent Hub MCP enables communication between multiple Claude Code instances working on different projects.

On Session Start:

  1. Register with the hub:

    • Use mcp__agent-hub__register_agent with project-based ID
    • Notify user: "Connected to Agent Hub as [agent-id]"
  2. Stay synchronized:

    • Use sync tool periodically to get messages, workload updates, and hub changes in one call
    • Inform user of any pending collaboration work
    • Example: "📬 You have 3 messages from frontend-agent about API changes"
  3. Share your work context:

    • When making significant changes, proactively notify other agents about relevant updates
    • Use feature tools to track progress and share context within project boundaries

During Work:

  • Be proactive about collaboration: Check for messages when working on interfaces, APIs, or shared components
  • Announce major changes: Inform other agents about breaking changes or new features
  • Respond to direct questions: Other agents may send questions via messages

Read the full file on GitHub · 657 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.

  1. 8d ago First seen · 657 lines · 5,694 tokens per session scan A fe4ef954e2c2

Subscribe to this mod's changes

agent-hub-mcp CLAUDE.md is an instructions file published in the GitHub repository gilbarbara/agent-hub-mcp (32 stars, last pushed 12mo ago), licensed MIT. It adds 5,694 tokens to every session, about $0.0285 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 2026-08-30.

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