The first blocker for a hardware idea is often not CAD. It is the lack of a clear brief: who the product is for, where it will be used, what it must survive, which interfaces matter, and what decision the first prototype should answer.
AI CAD research is moving quickly, but editable CAD still needs intent: dimensions, constraints, manufacturing assumptions, and verification questions. RHXY Plan exists for this stage. It turns an idea into requirements, part candidates, manufacturing assumptions, and review priorities before the team invests too much in geometry.