Device: Pixel 9, Android API 36, native T3 Code development client.
Observed from agent-device accessibility snapshots during the real app runs.

Base c8db8be305056bda6f82f96a43c65db178e62d36:
Thread tile: button "Play Demo" [disabled]
Preview: button "Play demo.mp4" [disabled]
Visible unavailable text: "Video unavailable"

Head 29dd721e2b785ce00d80918696edfc81c4a25bef:
Thread tile: button "Demo. Video unavailable. This connection cannot read host files. Pair again with a new link to view it." [disabled]
Visible unavailable text in thread and Android preview: "Video unavailable. This connection cannot read host files. Pair again with a new link to view it."

Both runs used a connection granted orchestration:read and orchestration:operate, without filesystem:read.