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Get Started Free →A checkbox that pops and draws its check on toggle. An App-UI micro-interaction (mobile component feedback). Honors prefers-reduced-motion. Keep it short and snappy; only on controls that actually change state.
.claude/skills/nexu-io-checkbox-pop/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-03 | ✗→✓ | ▲ Improved | 22% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -18% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 10% | 0% |
| case-14 | ✗→✓ | ▲ Improved | 22% | 0% |
| case-16 | ✗→✓ | ▲ Improved | 7% | 0% |
A checkbox that pops and draws its check on toggle. An App-UI micro-interaction. Part of motion-anything; obeys MOTION-SPEC.md.
prefers-reduced-motion: shortened / disabled. Transform & opacity only (GPU-safe).Other measured skills in the registry, with their headline benchmark lift.