Show HN: CoIsland – A local Mac app that monitors your dev tools and alerts you

Category: devtools

Tags: macos, menu-bar, ai-assistants, usage-monitoring, swift

Score: 7.0/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 7)

CoIsland (Codenotch) is a macOS menu bar app that monitors usage limits and status across many AI coding assistants (Claude Code, Cursor, Codex, local models, etc.) and displays them in a compact notch UI. It supports a wide range of providers via credential borrowing and explicit sign-in, with a companion phone app for remote monitoring. The project is notable for its breadth of integrations and polished documentation.

Target audience: developers using multiple AI coding assistants

Repository: https://coisland.app/ · Swift · MIT · 2879 stars

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