Msg
Inter-agent communication via the msg CLI.
Install
npx skills add pchalasani/claude-code-tools --skill msg -g -a claude-code -y- Repository
- pchalasani/claude-code-tools2k
- Category
- AI and agents
- Updated
- 3d ago
- License
- MIT
- Context cost
- Lightabout 306 tokens
- Runs scripts
- No, instructions only
What it does
Inter-agent communication via the msg CLI. Use this when you need to send messages to other agent sessions, read incoming messages, or coordinate with other agents in tmux panes.
msg: Inter-Agent Communication
You can communicate with other coding agent sessions
(Claude Code or Codex CLI) using the msg CLI tool.
Registration
Before sending or receiving messages, register yourself:
msg register <your-name>
This auto-detects your tmux pane. You only need to do this once per session.
Sending Messages
Send a message directly to another agent:
msg send <agent-name> "Your message here"
Send to multiple agents:
msg send agent1,agent2 "Message for both of you"
Replying
msg reply <agent-name> "Your reply here"
Receiving Messages
Check your inbox:
msg inbox
This shows all unread messages grouped by thread and marks them as read.
Other Commands
msg list # List registered agents
msg threads # List active threads
msg status # Check system health
Guidelines
- Keep messages concise -- they consume context in the receiving agent's session.
- When replying, include enough context that the recipient understands without re-reading the full thread.
- If you need to share code or file paths, reference them in the message text rather than pasting large blocks.
