ArrivalGraph

Use when an agent has a Seoul WGS84 destination coordinate and needs the actual matched building, floors, official elevator-presence fact, footprint size, registry ID, or structural arrival context for delivery/logistics, map enrichment, or physical-world planning. Do not use for general POI search, business discovery, traffic ETA, or turn-by-turn routing. Unverified entrance, elevator-location, parking-entry, loading-zone, access-rule, and observed-time facts remain null rather than inferred.

{'type': 'object', 'required': ['lat', 'lng'], 'properties': {'lat': {'type': 'number', 'maximum': 90, 'minimum': -90}, 'lng': {'type': 'number', 'maximum': 180, 'minimum': -180}}, 'additionalProperties': False}