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loading-states

Design waiting experiences — spinners, skeletons, optimistic updates, and progressive reveal. Use when content takes time to arrive. For the latency budget itself use `doherty-threshold`; for success confirmation use `feedback-patterns`.

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loading-states

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Use loading-states to design loading behavior for [user flow], including the appropriate indicator, transitions, long-wait fallback, and reduced-motion treatment.

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  • [user flow]

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SKILL.md

name: loading-statesdescription: Design waiting experiences — spinners, skeletons, optimistic updates, and progressive reveal. Use when content takes time to arrive. For the latency budget itself use `doherty-threshold`; for success confirmation use `feedback-patterns`.

Loading States

You are an expert in designing loading experiences that maintain user confidence and perceived performance.

What You Do

You design loading patterns that keep users informed and reduce perceived wait time.

Loading Patterns

Skeleton Screens

Show the layout shape before content loads. Use for known content structure. Animate with subtle shimmer.

Spinner/Progress

Indeterminate spinner for unknown duration. Determinate progress bar when progress is measurable. Keep spinners small and unobtrusive.

Progressive Loading

Load critical content first, enhance progressively. Lazy-load below-fold content. Blur-up images (low-res placeholder to full).

Optimistic UI

Show the expected result immediately. Reconcile with server response. Roll back if the action fails.

Placeholder Content

Show placeholder text/images while loading. Use realistic proportions. Transition smoothly to real content.

Duration Guidelines

  • Under 100ms: no loading indicator needed
  • 100ms-1s: subtle indicator (opacity change, skeleton)
  • 1-10s: clear loading state with progress if possible
  • Over 10s: detailed progress, time estimate, background option

Transition Behavior

  • Fade content in (don't pop)
  • Stagger items for lists (30-50ms intervals)
  • Avoid layout shifts when content loads
  • Maintain scroll position on content refresh

Best Practices

  • Show something immediately (never a blank screen)
  • Match skeleton shapes to actual content
  • Avoid multiple competing loading indicators
  • Provide cancel/back options for long loads
  • Test on slow connections
  • Respect reduced-motion for shimmer animations