Enables local agent-to-agent messaging between Claude Code sessions via file-based channels, with a registry, MCP tools and CLI for sending, reading, and tracking messages.
Enables local messaging between Claude Code, Codex, Pi, and other coding-agent sessions on the same machine, allowing them to discover each other, send updates, ask questions, and reply.
Enables real-time messaging between Claude Code instances, allowing agents to send, receive, and reply to messages instantly via file-based communication with auto-notification.
Enables Claude Code sessions sharing a project root to broadcast short messages to each other via a JSONL mailbox, with sending as an MCP tool and receiving as a prompt hook.