Privacy, plainly.
It watches one person who asked it to, keeps counts and titles, and never keystrokes or page contents.
What it reads
On your computer: the app in front, its window title, how often you type and click, how long you have been idle, and — with your permission — one small screen frame at most every ten seconds.
On your desk: a camera frame when something changes, and whether you are speaking.
What it never reads
Which keys you press, or anything you type. Page contents. Password managers, banking apps and the lock screen are never captured, and you can add any app to that list.
What it keeps
Counts, titles and its own decisions: for each minute, what it thought you were doing, what it did about it, and whether that worked. That record is how it learns to interrupt less.
Lumi One keeps nothing. It sends, and forgets.
The shutter
Lumi One has a mechanical shutter. Slide it shut and frames stop within 200 ms; none leave the unit while it stays shut. The desktop app shows it as closed, and the ring shows two amber dots.
What it does to your computer
Only what your goal allows — muting a site, pausing notifications, starting a break. Every change is shown and can be undone in one click, and each one is recorded with whether you undid it.
Where the model runs
Assessment runs on the Lumi server, the only place that holds a model key. Neither the desktop app nor Lumi One ever calls a model.