Msg

by pchalasani

Msg is an AI Engineering skill for Claude Code, published by pchalasani in claude-code-tools.

2K stars128 forkson pchalasani/claude-code-toolsAdded 2026/08/18Repository updated 2026/08/17

View source on GitHub Download repo ZIP

claude-codeclicli-agentcode-agentcodexcodex-clicontextllmtmux

Install in seconds

Install Msg

Copy Msg into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/pchalasani/claude-code-tools/tree/main/plugins/msg/skills/msg ~/.claude/skills/msg

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/pchalasani/claude-code-tools.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: plugins/msg/skills/msg/SKILL.md in pchalasani/claude-code-tools
Installs to: ~/.claude/skills/msg
Collection: One of 17 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Msg does

Msg sends messages between agent sessions running in tmux panes. Use it to coordinate with other Claude Code or Codex CLI agents by registering, sending, replying, and checking an inbox.

Msg is cataloged under AI Engineering on DirSkills. Msg comes from a repository tagged claude-code, cli, cli-agent, code-agent and codex.

Documentation

README

Excerpt

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

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Msg

What else does pchalasani publish alongside Msg?
Msg is one of 17 skills that DirSkills catalogs from pchalasani/claude-code-tools, the repository it ships in. Its siblings there include Add Pattern, Agent Style and Avoid AI Writing. Each one is a separate skill with its own page in this directory, installs the same way Msg does, and is maintained by pchalasani in that same repository. The rest of the collection is listed on the pchalasani/claude-code-tools page.
How does Msg compare to other AI Engineering skills?
Msg ranks #876 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Msg against them. Open each page to compare what they document and how they install.