Meta's Muse can't correctly explain its own Messages access
Jason Aten, a contributing editor at Inc Magazine, posted screenshots on Threads of an exchange with Meta's Muse AI assistant on its Mac app, which can access Messages, Calendar, and Notes. During the conversation, Muse referenced the contents of a Messages exchange Aten was having. When he asked how it knew, Muse said, “I saw the notification previews, not your message history. I haven’t been reading your texts.” Aten said he had not given Muse access to his messages and kept pressing on how it was receiving message previews. Muse could not give a clear answer, replying, “Honest answer: I can’t give you the exact plumbing,” and adding, “What I know is that the paired Mac app exposes notifications as one of its capabilities, and they arrive to me through the device sync.”
David Singleton of Meta Superintelligence Labs replied under the Threads post to address the exchange. He walked through the permissions Muse needs to read messages, including granting the Mac app full disk access, and said the features are opt-in. Singleton said Muse “does not watch notifications on your Mac, but rather syncs data from Messages only after the user has specifically enabled access.” He said that when Muse described syncing “device notifications,” it was confused about how to explain the feature and gave an incorrect explanation, calling that “on us.” Meta apologized for the incorrect response and said it is working to improve Muse's understanding of its own internals so it answers questions about how it functions more consistently. Neither Muse's own explanation nor Singleton's reply spelled out the exact technical mechanism by which notification content reaches Muse, and the article does not say whether Meta made any product or code change as a result.
Key facts
- Jason Aten, a contributing editor at Inc Magazine, posted Threads screenshots of Meta's Muse giving a confused explanation of how it knew about his Messages notifications on the Mac app.
- Muse first claimed it only saw “notification previews,” then admitted “I can’t give you the exact plumbing” when Aten pressed on the mechanism.
- David Singleton of Meta Superintelligence Labs said Muse's Mac app needs opt-in permissions, including full disk access, before it can read Messages.
- Singleton said Muse syncs Messages data only after a user enables access rather than watching notifications continuously, and called Muse's wrong explanation “on us.”
- Meta apologized and said it is working to improve Muse's ability to accurately describe its own internal workings, though no product or code change was confirmed.
Why it matters
The incident is less about a privacy breach than about an AI assistant that cannot reliably describe its own capabilities. Muse gave Aten an answer about how it accesses his data that its own maker had to correct in public, which undercuts the idea that asking a chatbot to explain itself is a way to verify what it is actually doing.
Who it affects
Anyone running Meta's Muse assistant with its Mac app connected to Messages, Calendar, or Notes, and more broadly users of any AI assistant with device-level integrations who might rely on the assistant's own account of its data access.
How to use it
Muse's Messages access on the Mac app is opt-in and requires granting the app full disk access; according to Singleton, once enabled, Muse syncs Messages data through the device sync rather than continuously watching notifications. Users who want to limit this can decline the Messages permission.
How solid is it
The account rests on Aten's own Threads screenshots of his conversation with Muse, plus a direct on-the-record reply from David Singleton of Meta Superintelligence Labs confirming the exchange happened and explaining Meta's side, including an apology for Muse's wrong answer.
Risks and caveats
Even Singleton's clarification stops short of describing the exact technical path by which notification content reaches Muse. The article does not say whether Meta has shipped any fix, only that it is “working to improve” Muse's self-description, so the underlying confusion may recur for other users asking similar questions.
“I saw the notification previews, not your message history. I haven’t been reading your texts.”
— Muse, Meta's AI assistant