Base map display: style, language, viewport, layers, and hillshade.
Map POI layer: visibility, filtering, and category management.
Place search, geocoding, and geometries state.
Reachable range results: origin, budgets, and bbox summaries.
Route calculation, waypoint management, and planning parameter state.
Traffic flow and incident overlay state.
State passed to tool factory functions. Organized by feature area, each sub-state mixes lazy module access with the current service data produced during the session.
Example