cmux-terminal-multiplexer

Installation
SKILL.md

cmux — AI-Native Terminal Multiplexer

Skill by ara.so — Daily 2026 Skills collection

cmux is a terminal multiplexer with a programmable socket API designed for AI coding agents. It provides full Playwright-equivalent browser automation, real-time terminal split management, sidebar status reporting, and agent team coordination — all via a simple CLI.


What cmux Does

  • Terminal splits — create side-by-side or stacked panes, send commands, capture output
  • Browser automation — full headless Chromium with snapshot-based element refs (no CSS selectors)
  • Status sidebar — live progress bars, log messages, and icon badges visible to the user
  • Notifications — native OS notifications from agent workflows
  • Agent teams — coordinate parallel subagents, each with their own visible split

Orient Yourself

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Installs
1.3K
GitHub Stars
4
First Seen
Mar 17, 2026