Show HN: Muster, a Mac Menu Bar Switcher for Claude Code, Codex and Cursor

Category: devtools

Tags: macos, menu-bar, ai-agents, developer-tools, productivity

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 7)

Muster is a macOS menu bar app that monitors multiple AI coding agent sessions (Claude Code, Codex, Cursor) and alerts you when one needs input, allowing you to answer prompts without switching apps. It reads session files locally, uses hooks for approvals, and supports remote sessions over SSH. This is a novel utility that fills a real pain point for developers running multiple AI agents simultaneously.

Target audience: developers using AI coding agents, particularly those running multiple sessions concurrently

Repository: https://github.com/josefchen/muster · Swift · MIT · 91 stars

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