Calculate optimal routes across road, rail and pedestrian networks using real-time traffic, transit schedules and logistics constraints. Use this skill whenever the user mentions multimodal routing, real time traffic, transit routing, road network, shortest path, route optimization, turn by turn, or is working with OSRM, Valhalla, GTFS, even if they never say "dynamic multimodal pathfinding" explicitly. Routes live lookups through the Multimodal-Routing-API endpoint. Do not use it for unrelated application feature work or general coding questions.