What is Celeris
Celeris is a desktop app that acts on whatever is in front of you. Press a global hotkey, type one line of intent ("raise a PR", "reply to this", "book this in"), and Celeris works out what the screen implies and does it. It asks first if anything is about to change.
Celeris runs on Celeris-1, a model built for speed. Small tasks finish while you are still looking at them, and a turn that starts wandering is stopped by a step budget rather than left to burn a minute. It is the shortest path from noticing a small task to having it done.
Two ways in
The hotkey is Alt+Shift+D (⌥⇧D on macOS). It captures the current screen and
opens a single-line prompt over it. What you are looking at becomes the context,
so you rarely have to explain it.
The app works without a screenshot. Open Celeris from the Dock, Spotlight or the Start menu, start a new chat, and type the task. The same loop runs it. History is shared between both routes.
Mini mode (Alt+Shift+M) is a small always-on-top input for continuing the
current session while another app stays in view. It never takes a screenshot and
does not close when you click away.
What it can do
Celeris runs tools, not a bare shell. Out of the box it reads files, lists folders and runs terminal commands. It grows through connectors: your calendar, mail, documents and issue tracker.
The tools are yours, so the tasks are too. File the bug for the error on screen. Turn the thread you are reading into a message you can send.
What it will not do without asking
Reads run on their own. Anything that writes, sends, deletes or leaves your machine stops and asks, unless you have chosen Accept edits in this folder for the session and the edit is inside the working folder you picked. See Approvals & safety.
Where things run
Celeris runs on your own machine, on macOS, Windows and Linux. There is an Android companion that drives a computer you have paired rather than running work itself. Your screen captures, files and command output stay local, apart from what is sent to the model to answer the turn you asked for. Privacy lists exactly what leaves the device and what you can turn off.