Variable WHITEBOARD_ACTIVE_PAGE_NOTEConst
WHITEBOARD_ACTIVE_PAGE_NOTE: " This tool targets the ACTIVE page only — use Whiteboard_SwitchPage first to work with items on another page." = ' This tool targets the ACTIVE page only — use Whiteboard_SwitchPage first to work with items on another page.'
The shared sentence appended (once, programmatically — see WHITEBOARD_TOOL_DEFINITIONS) to every ITEM tool's description, so the model always knows item operations are scoped to the page that is currently active.