Changelog

Installing and updating are smoother.

• An installer window that shows the way. Open the disk image and Muster sits next to your Applications folder, with an arrow between them.
• Updates take over cleanly. Put a new Muster in place of the old one and open it: the old copy quits instead of staying in charge.
• The disk image ejects itself. When Muster moves itself into Applications, it ejects the disk image it came from.
• Nothing skipped. If you jump past a release, What's New shows its changes too.

Only the errors you can fix ask for you.

• Usage limits wait their turn. A session stopped by a usage limit or a sign-out moves to Recent and shows when the limit resets. You get one notification per limit instead of one per session.
• Errors say what happened. Connection lost, API error or a refused request, with the agent's own message when you hover.
• Cancelled isn't an error. A turn you stop in Cursor now reads as done.
• What's New. After an update, Muster shows what changed, once. It's also in the menu bar menu.

Lighter, with costs you can trust and a 30-day usage view.

• Usage window. Choose Usage… in the menu bar menu to see 30 days of tokens and API-rate cost by day, model and project. It reads your transcripts only while the window is open.
• Costs counted once. A resumed Claude session no longer bills the history it copies, and subagent usage counts toward the session that started it. Rows read "≈ $41 API" so nobody mistakes them for a bill.
• Lighter. Muster reads only what changed. With ten busy agents it averages about 0.4% of one core and about 20 MB of memory.
• Answered elsewhere, gone here. Answer a prompt in Claude's own dialog and Muster drops it right away.
• This week. Settings counts the prompts you answered without switching and the jumps you made.
• Safer hooks. Muster keeps your original settings file as settings.json.muster-original, leaves symlinks and permissions as they are, and redoes its edit if Claude writes the file at the same moment.

Codex users: in Settings, under "Answer prompts from Muster", turn Codex off and on once to pick up the shorter wait, then run /hooks in Codex to trust the updated hook.

Every agent, one glance: a native Mac menu bar app for your Claude, Codex and Cursor sessions.

• See who needs you. A glass alert at the top of the screen the moment an agent waits on you, plus a count in the menu bar.
• Answer from anywhere. Allow a command, pick an answer or approve a plan with ⌥↩, from the alert, the switcher or the notification.
• ⌥Tab to any agent. Most urgent first. Let go or click to land in its window, or the terminal it runs in.
• Find anything. ⌃⌥Space searches every session.
• Know what it costs. Tokens and API-rate cost per session, priced per model and per message.
• A tour you do, not read. The first run finds your agents and has you try the switcher for real.