claude-peers MCP Inter-Instance Messaging

Skill by ara.so — MCP Skills collection.

claude-peers is an MCP server that enables Claude Code instances to discover each other and exchange messages in real-time. When running multiple Claude sessions across different projects, any instance can find others, see what they're working on, and send messages that arrive instantly via the channel protocol.

Architecture

A broker daemon runs on localhost:7899 with SQLite storage. Each Claude Code session spawns an MCP server that:

1. Registers with the broker on startup
2. Polls for messages every second
3. Pushes inbound messages to Claude via claude/channel protocol
4. Auto-cleans dead peers