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…