What changed
Meta announced on September 23 that its Muse AI agent — launched two weeks ago — is expanding fast. Muse for Mac can now drive any app on your computer with your permission and keep working after you walk away. Muse will get its own email address so it can receive messages and act on them (no date yet). It's coming to Meta's AI glasses in the next few months, so you can ask it to log meals, book appointments, or check prices while you're cooking or driving. Meta also announced partnerships with Walmart, Best Buy, Sephora, Gap, Wayfair, Expedia, and Instacart so Muse can shop and book directly.
What you can do with it this week
If you're on Mac and in the U.S., try Muse on a task that spans three apps — like pulling data from Gmail, adding it to a spreadsheet, and posting the summary in Slack. Muse can click through all of it while you're in a meeting. Once it gets an email address, you could forward it routine requests — meeting reschedules, invoice follow-ups — and let it draft replies. When it lands in glasses, test it on hands-free work: asking for a recipe while cooking, checking a flight while driving, or logging expenses while walking the warehouse. Start with low-stakes tasks where a wrong answer just means you redo it.
What to keep in your own hands
Don't connect Muse to your business bank account, payroll system, or any app where one wrong click moves money. Don't forward it emails with customer financial data, health records, or anything your lawyer says must stay confidential. When Muse drafts a reply, read it before it sends — agents get tone wrong and sometimes invent details that sound plausible. If you use it on Mac, close sensitive tabs (contracts, proposals, customer lists) before you let it work. And keep checking: Meta says Muse works in the background, but you decide when it gets to act without asking first. Set permissions tight.