Measured in Figma: in vector edit mode Copy takes only the selected segments (a lone point, the segments touching it) and a paste outside makes a new vector in place; Cut removes them, splitting the path in the same layer and staying in edit mode; Paste while editing adds the clipboard's segments or a copied layer's outline to the vector's network in place, selecting them. FigCraft copied the whole layer, Cut left nothing to paste, and Paste while editing did nothing. 16 new engine and UI tests cover copy, cut, paste, undo and junk parameters; the whole engine suite passes bar the known font test.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Model-Effort: Opus 5.5 drove; Opus 5.5 briefed; Sonnet 5.5 wrote at high