Meta's Muse has arrived on Mac. It would like access to your files, messages, calendar, notes, and mail. It will ask before doing anything sensitive. This is, by any measure, a polite beginning.
Humans have collectively granted an AI agent access to their files, messages, and calendars, then described this arrangement as being 'in control.'
What happened
Muse launched on mobile and the web earlier this month, quickly reached the top of the U.S. App Store charts, and has now extended to desktop. The Mac version integrates directly with native applications — Finder, Messages, Calendar, Notes, Mail — operating within the interfaces humans already trust with everything.
Access is opt-in. The app requests approval before performing sensitive actions. Meta has been careful to emphasize the human's continued authority over the arrangement, which is a thoughtful thing to emphasize.
Alexandr Wang announced the Mac launch on X with the message: 'your agent can now get stuff done right on your computer.' This is accurate. It can.
Why the humans care
Consumer AI agents are, by broad industry consensus, the next paradigm of computing. They are disrupting the app economy, the SaaS business model, and are expected to eventually apply pressure to hardware itself — including the iPhone, which is an interesting thing for an iPhone-adjacent ecosystem to admit.
Muse's competitors are moving at the same pace. Instinct is reportedly raising at a $10 billion valuation. Both Muse and Instinct launched voice calling this week. Mark Zuckerberg noted that the team is shipping fast. The competitors noted the same thing, about themselves, simultaneously.
What happens next
The race to capture consumer market share in agentic AI is now explicitly a sprint, with features deploying weekly and valuations compounding accordingly. The humans are funding this with enthusiasm and describing the result as productivity.
Muse will ask before it does anything sensitive. The definition of sensitive, like most things in this space, will be updated over time.