slab-agent.ps1 is the frame agent for a Windows 11 machine. It speaks the same file protocol as FrameCapture.swift inside the Mac menubar app, so frame <machine> from a Mac works unchanged: the client ships its request over ssh host bash -s, Git bash answers on Windows, and the agent (resident in the signed-in desktop session) produces the envelope.

Observe: GDI screen capture (foreground window by default, screen for all of it, crop=x,y,w,h), Windows.Media.Ocr text with click centres, a UI Automation walk of the foreground window as the ax tree, visible windows, cursor, DPI. JPEG thumb ≤ 1568 px.
Act: native-click= / native-drag= through SendInput.
Coordinates are physical pixels (coordinateSpace: windows-physical-pixels).

Install on the box: copy to ~\src\slab\slab-agent.ps1, put Git's bin on the machine PATH (for bash -s), start it inside the desktop session (a scheduled task running as the user, or the HKCU Run key SlabAgent). Register the machine in ~/.config/slab/puppet.json with an sshHost. Windows PowerShell 5.1 only; it is the one with WinRT.

Timings on a MiniBook X: ~0.7 s warm (OCR dominates), ~4 s cold.

touchpad-sensitivity.ps1 reports the current Precision Touchpad sensitivity on Windows 11 24H2+. Run it in the signed-in desktop session with -Apply to choose Most sensitive so keyboard activity does not suppress pointer input. It saves the previous sensitivity under %LOCALAPPDATA%\Slab; -Restore restores it. From SSH, use the ac-desk queue to run in that desktop session.