Variable WHITEBOARD_WIDGET_TOOL_NAMES`Const`

WHITEBOARD_WIDGET_TOOL_NAMES: readonly [
    "Whiteboard_InspectWidget",
    "Whiteboard_OperateWidget",
    "Whiteboard_CallWidget",
] = ...

The three WIDGET tools: they talk to a live widget's frame, so they need a mounted board and run asynchronously (RealtimeWhiteboardHostComponent.ApplyAgentToolAsync). The pure ApplyWhiteboardAgentTool answers them with surface_unavailable.