Health-check tool.

Returns {"status": "ok"} so any MCP client can confirm reachability.

Example: ping() -> {"status": "ok"}

Forward geocode a place name to a WGS84 coordinate (decimal degrees).

Units: latitude/longitude in decimal degrees. Example: geocode(query="KL Sentral") -> GeoPoint(lat=3.1355, lon=101.7044)

Reverse geocode a coordinate to a human-readable address.

Units: lat/lon in decimal degrees; returns a display-name string. Example: reverse_geocode(lat=3.15, lon=101.71) -> "Bukit Bintang, ..."

Reachable-area polygon within a travel-time budget.

Units: lat/lon in decimal degrees; minutes in minutes (1-120); polygon ring as [lon, lat] pairs; area_m2 in square metres. Example: isochrone(lat=3.15, lon=101.71, mode="walk", minutes=10)

Points of interest within radius_m of a point, grouped by category.

Units: lat/lon decimal degrees; radius_m metres (max 5000). categories is enum-constrained (no free-text queries). Example: pois(lat=3.15, lon=101.71, radius_m=500, categories=["cafe","transit"])

Counts of key amenities inside a bounding box (a light density helper).

Units: all coordinates decimal degrees. min is south-west, max is north-east, so min_lat <= max_lat and min_lon <= max_lon are required. categories defaults to a sensible set when omitted. Example: bbox_summary(min_lat=3.14, min_lon=101.70, max_lat=3.16, max_lon=101.72)