Background computer use for agents, as an MCP server
Computer use for agents that runs in the background, as an MCP server. Start a session with an app and get back a session id. Drive the app with that id, then end the session. The app works behind your other windows, and your pointer, keyboard focus and frontmost app stay where they are. Sessions end when the MCP server exits, including when it is killed.
Tool What it does --- --- startsession Start an app (a .app path, bundle id or name on macOS; an executable elsewhere) and return a session id and its windows endsession, listsessions, listwindows Manage sessions screenshot Capture a session window, even a covered one; uitree: true adds the accessibility tree getuitree One line per element: [e12] Button "Save" @(x,y wxh) actions=press click, movemouse, drag, scroll Pointer actions at window coordinates, or click with element: "e12" typetext, presskey Text, and chords such as cmd+s or ctrl+shift+tab enter setvalue, elementaction Set an element's value, or run press, focus, showmenu, increment and similar actions wait Let the app catch up runrecipe Run a fixed list of steps with a decision model (see below) permissions What the OS needs granted, and whether it is
Every action returns a fresh screenshot unless you pass screenshot: false. Pass uitree: true to also get the tree. Coordinates are points from the window's top-left, the same grid as its screenshot.
runrecipe runs straight-line chores without the calling model in the loop:
From the project README.
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