What problem does it solve? Populating a CARLA simulation with traffic by hand is error-prone: vehicles freeze when the Traffic Manager dies with its client process, synchronous worlds hang when nothing ticks them, and spawn points collide. This Skill encodes those failure modes into a tested procedure so an agent can spawn driving traffic, lane queues, or a hero vehicle correctly on the first attempt. ## Core Features & Use Cases - Autopilot traffic at spawn points: Scatter N vehicles across the map's spawn points with an atomic SpawnActor-then-SetAutopilot hand-off to the Traffic Manager, with blueprint filtering, --safe four-wheel selection, and seeded reproducibility. - Lane queues and hero vehicles: Place a row of vehicles in a single lane at a fixed gap using the Waypoint API, or spawn one ego vehicle with role_name hero and optional ROS 2 naming for control topics. - Clock and TM lifecycle management: Automatically switches the world to synchronous mode, holds the Traffic Manager alive with --hold, and restores previous world settings on release. - Use Case: A user asks to "spawn 50 cars driving around" — the Skill checks prerequisites, spawns 50 vehicles on autopilot with --hold, and later destroys them cleanly when the user is done. ## Quick Start Ask the agent to spawn 40 cars driving around on autopilot on the running CARLA server, then destroy them when finished.
