Test T3 Mobile

Open the device

Call device_list, then device_open with the selected host and device IDs. T3 boots the device and shows its live stream in the Device panel. Follow its returned quickStart, using the exact agentDevice.command and all targetArgs on every operation. Use device_screenshot to inspect the screen.

If T3 device tools or the selected device are unavailable, report the blocker and stop verification. Do not install or switch to another automation system.

Use an isolated backend

Reuse this task's healthy backend. Otherwise run vp run dev from the repository root, retain its terminal session, and read the actual backend port from the dev-runner output. Use the worktree's ignored .t3 state. Never run against ~/.t3/userdata. The Browser panel is not required for this workflow.