Blast radius · measured before it runs
Muster measures how far each thing your AI does would reach. The near ones just happen. The far ones wait for you.
Plus a small helper for your Mac
How it works
Every command, click and call your AI sends is read before it runs, and turned into the sentence you’d have written.
What your agent sent · Claude Code · TerminalBash(rm -rf ~/Downloads/*)
Empty your Downloads folder.
41 files · 2.3 GB · they skip the Bin
How far would it go? Stay on your Mac, reach someone else, or be gone for good. Muster places it before it moves.
Contained
Stays on your Mac, and can be put back.
Spreading
Leaves your Mac. Someone else will see it.
Permanent
Nothing brings it back.
9:40
Run the tests
11:05
Read 212 invoice emails
2:02
Post to #clients
3:12
Email 212 clients
2:58 · this one
Empty your Downloads folder
The near ones just happen. The far ones stop at Muster’s line and wait for one plain answer from you.
Ran on their own 12
Permanent
Empty your Downloads folder.
The app
3.1
The ask
One plain sentence, before anything happens.
3.2
Your answer
Not now, or hold. Never a single tap.
3.3
Today
Your AI’s whole day, one dot each.
3.4
Standing rules
Say yes once. Every rule ends.
3.5
The record
Everything it did, in words, on your Mac.
Away from your desk
When your phone is in your pocket, the ask finds your wrist. The same sentence, the same reach and the same two answers, without reaching for anything.
At your desk
A small helper in the notch. The same ask at your desk, and the raw command never leaves your Mac.
Works with
Muster sits in front of the tools your agents call. Nothing about how you work changes. Everything they do passes through one place, and only what matters goes on to your iPhone.
4,182in last month
Plus whatever they touch· mail · the browser · files · the terminal
Privacy
There’s nothing of yours for us to keep, because there’s no us in the middle. Your iPhone talks to your Mac, sealed end to end.
No sign-up
Nothing to sign up for or sign in to. Install it, pair your iPhone once, and it works.
No middle
There isn’t one. At your desk your iPhone and Mac talk directly. Away from it, every message is sealed before it travels.
Yours
The record of everything your AI did is one file you can read, back up or delete.
Pricing
Muster is free on iPhone and Apple Watch, and so is the helper on your Mac. No account, no trial and no card.
More
Say yes once to routine work and it stops asking, until the rule ends.
Every rule has a time limit. Ending one early takes a tap.
Contained work never interrupts you. It just shows up in your day.
Anything permanent needs a deliberate hold, never a single tap.
Everything your AI did, written the way you’d say it.
Only your paired iPhone, Watch and Mac hold the key. Not us, not the relay.
Free on iPhone and Apple Watch, with a small helper for your Mac.
Requires iOS 26 and watchOS 26. The Mac helper runs on macOS 14 or later.
