CodeIsland — Free Dynamic Island notch app for monitoring Claude Code sessions

[xmqywx]

Hey cmux community! 👋

I built CodeIsland, a free open-source macOS app that turns your MacBook notch into a real-time control surface for AI coding agents. It works especially well with cmux!

Why cmux + CodeIsland?

• Precise workspace jumping — Click a session in the notch to jump to the exact cmux workspace
• AskUserQuestion quick reply — Answer Claude's questions directly from the notch via cmux send, no need to switch tabs
• Smart popup suppression — Detects which cmux workspace you're in, only pops up for sessions you're NOT looking at
• Real-time monitoring — See all your Claude Code sessions at a glance, with status, subagent tracking, and usage stats

Features

• 📊 Claude usage monitoring (5h/7d percentage via OAuth API)
• ⚡ Subagent tracking with collapsible detail view
• 🎨 Active session highlighting, colored terminal tags
• 🐱 Pixel cat companion + Claude Code buddy integration
• 🔔 8-bit sound effects for session events
• 🌐 English + Chinese

GitHub: https://github.com/xmqywx/CodeIsland

Free and open-source, no commercial intentions. Feedback and contributions welcome!

🐱 Built with Claude Code