Tier A
RN-universal Skeleton pilot
ScaffoldedLoading placeholder. On web via RN Web the Tailwind animate-pulse utility drives the shimmer; on native the same className will be transformed by NativeWind into an Animated.loop(opacity) StyleSheet in Phase 7. Announced as a busy progressbar.
Side-by-side: single blocks
shadcn (div)
RN (View)
Composite: list item placeholder
Semantics
| Aspect | shadcn | RN | Notes |
|---|---|---|---|
| Element | <div> | <View> | Parity |
| Role | none | accessibilityRole="progressbar" | Assistive tech announces "busy" |
| State | n/a | accessibilityState.busy = true | Screen reader announces loading |
| Animation (web) | animate-pulse (CSS) | animate-pulse (CSS) | Same Tailwind utility |
| Animation (native) | n/a | Animated.loop(opacity) | Phase 7 NativeWind transform |