text-to-cad

Create, modify, inspect, validate, and review STEP-first build123d/Python CAD parts and assemblies. Use for natural-language CAD specs, STEP/STP generation, build123d source, build123d source-level joints, @cad references, geometry facts, measurements, mating deltas, CAD Explorer links, conditional review renders, and secondary DXF/STL/3MF outputs.

Robot motion setup, generation, and validation for URDF-based inverse kinematics and path planning. Use when Codex needs to install ROS 2 or MoveIt 2 dependencies, run or test the local motion server, generate CAD Explorer motion artifacts for a `.urdf`, create MoveIt/SRDF/kinematics/planning sidecars, debug IK or path-planning behavior, or validate robot motion commands.

URDF generation and validation for robot model outputs. Use when the agent needs to create, edit, regenerate, inspect, or validate `.urdf` files, `gen_urdf()` envelopes, robot links, joints, joint limits, parent/child kinematic structure, visual or collision mesh references, collision geometry, or URDF-specific XML validation. Use the owning CAD or mesh workflow for STEP/STP, STL/3MF/DXF exports, render images, GLB/topology sidecars, CAD Explorer links, and @cad geometry references.