<GeometryInput />

Standalone point / polyline / polygon drawing panel (canvas-based) with a GeoJSON preview. Controlled component:

const [feature, setFeature] = useState<GeoFeature | null>(null);

<GeometryInput value={feature} onChange={setFeature} />;

The resulting GeoFeature can be attached to the next message:

sendMessage("What's in this area?", {
  geometry: feature,          // GeoJSON Feature drawn by the user
  lat: 51.507, lng: -0.128,   // optional viewport centre
});

The backend injects the geometry as spatial context, so the agent can answer "What is this area?" style questions, compute buffers and generate GeoJSON overlays.

GeoJSON types

Exported for building custom UIs: GeoPoint, GeoPolyline, GeoPolygon, GeoGeometry, GeoFeature, GeoCoordinate — plus MessageAttachment and the AgentState enum for custom rendering of agent steps.