Picker, quick, compare, ship.
Live visual variants stay in the page. Dated work lives at prototypes/YYYY/MM/NNN-slug/. Verify is self-containment, not a four-viewport receipt machine.
Local-first prototype skill
Picker for live visual variants. Dated owners for real prototypes. Compare two options. Package a static ZIP. No experiment orchestra.
Smallest route
Live visual variants stay in the page. Dated work lives at prototypes/YYYY/MM/NNN-slug/. Verify is self-containment, not a four-viewport receipt machine.
The refusal
A compare page can switch artifacts; it does not own their runtime. A package can carry files; it does not turn a draft into a production claim.