Use cases
Muse Code for macOS power users
If you run Muse Code across several repositories on a Mac, the constraint is not the agent, it is keeping track of it. Helicon gives every thread a home: projects grouped by directory, sessions with full history and resume, inline diffs, an approval queue and cost at API rates, in Apple Silicon, Intel or universal DMGs.
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The pattern this fixes
Four terminal tabs, three of them idle, one waiting on an approval you have not noticed, and no way to reopen the thread from Tuesday that had the reasoning you now need. That is the normal state of running an agent seriously, and it is an interface problem rather than a model problem.
What changes
- Threads are listed under their project and resume with full history.
- Blocked threads are marked, so the approval queue is visible at a glance.
- Diffs are inline, at the turn that produced them.
- The usage page shows what each thread would have cost at published rates.
- The command palette reaches any project or session without the mouse.
Practical notes
- Each release has an Apple Silicon DMG (about 43 MB), an Intel DMG (about 45 MB) and a universal one that runs on both. The download button picks yours when your browser reports the chip, and gives you the universal DMG when it does not.
- First launch needs System Settings > Privacy & Security > Open Anyway (macOS 15 or later), because the builds are not Apple notarized yet.
- The theme follows the system, in both light and dark.
- Auto update keeps the app current.
Frequently asked questions
Is there an Apple Silicon build?
Yes. Since 0.23.1 each release has an Apple Silicon DMG and an Intel DMG, about half the size of the universal one that runs on both.
Why the Gatekeeper warning?
The builds are updater signed but not Apple notarized yet. On macOS 15 or later, use System Settings > Privacy & Security > Open Anyway the first time. On macOS 14 or earlier, right click and Open.
Does it replace my editor?
No. It has a file viewer for reading what the agent touched. Writing code stays where you like it.
Keep reading
- macOSHelicon on Mac: a free desktop app for the Muse Code CLI, with a DMG for Apple Silicon, one for Intel and a universal one. Auto update and a one-time Open Anyway step.
- Fix: macOS first launchThe macOS builds are not notarized yet, so Gatekeeper blocks the first launch. On macOS 15+, click Open Anyway in System Settings > Privacy & Security.
- Session history and resumeEvery Muse Code session, grouped by project, with full history and one click resume. Sessions started in the muse terminal TUI are discovered and resumable too.
- Running agents in parallelIsolated worktrees, one sidebar, and clear marks for which thread is running, finished, or blocked on you. Plus the cost of all that parallelism, per thread.
- Remote developmentRun the daemon and the muse CLI on the machine that holds the repository, then supervise from a browser on a laptop. Same UI, same sidebar, same approvals.
- Open source maintainersMany repositories, short bursts of attention, and a need to see exactly what an agent did before it touches a project other people depend on.
Same Muse Code. Same subscription. Better interface.
Free and MIT licensed. Windows installer, Apple Silicon, Intel and universal macOS DMGs, and a web build against a daemon you run.