cmux-terminal-multiplexer
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
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