Sequence multi-stop delivery routes to minimize fuel and time under fleet constraints and curb-access data. Use this skill whenever the user mentions last mile, route sequencing, vehicle routing problem, multi stop, fleet constraint, delivery window, curb access, or is working with OR-Tools, VROOM, OSRM, even if they never say "last-mile delivery optimization" explicitly. Routes live lookups through the Delivery-Optimization-API endpoint. Do not use it for unrelated application feature work or general coding questions.
