Well, if you wanna give VibeCAD a try, ask your agents to use Aetheris directly since making a good UX is hard and it's something I have to test by hand instead of offloading to an AI.

https://github.com/yuechen-li-dev/Aetheris

Aetheris is focused on performance and reliability first and foremost, because I'm just so tired of SolidWorks eating up gigabytes of RAM for simple parts and crashing randomly. So, tge (almost) pure analytical geometry engine with aggressive optimization means it is faster in terms of building 3D models, but the trade-off is that it doesn't let you do weird modeling like asymmetrical/variable radius fillets.