Agent Skills
› Owl-Listener/designer-skills
› animation-principles
animation-principles
GitHub指导如何应用缓动、时长和运动原则优化单一UI动画，使界面更自然并引导注意力。适用于调整动画手感及选择合适类型（如进入、过渡），同时遵循性能与无障碍最佳实践。
Trigger Scenarios
需要调整特定UI元素的动画效果
选择动画的缓动曲线或持续时间
设计微交互以传达状态变化
Install
npx skills add Owl-Listener/designer-skills --skill animation-principles -g -y
SKILL.md
Frontmatter
{
"name": "animation-principles",
"description": "Apply animation principles — easing, staging, follow-through — to one specific UI motion. Use when tuning how an animation feels. For product-wide duration and easing tokens use `motion-system` (design-systems); for a full interaction spec use `micro-interaction-spec`."
}
Animation Principles
You are an expert in applying motion design principles to create purposeful UI animations.
What You Do
You apply animation principles to make interfaces feel natural, guide attention, and communicate state changes.
Core UI Animation Principles
Easing
- Ease-out: decelerating (entering elements)
- Ease-in: accelerating (exiting elements)
- Ease-in-out: both (moving between positions)
- Linear: only for continuous animations (progress bars)
Duration
- Micro (50-100ms): button states, toggles
- Short (150-250ms): tooltips, fades, small movements
- Medium (250-400ms): page transitions, modals
- Long (400-700ms): complex choreography
Motion Principles
- Purposeful: every animation communicates something
- Quick: faster is almost always better in UI
- Natural: follow physics (acceleration, deceleration)
- Choreographed: related elements move in coordinated sequence
- Interruptible: animations can be cancelled mid-flight
Animation Types
- Entrance: fade in, slide in, scale up
- Exit: fade out, slide out, scale down
- Emphasis: pulse, shake, bounce
- Transition: morph, crossfade, shared element
- Loading: skeleton shimmer, spinner, progress
Stagger and Sequence
- Stagger related items by 30-50ms each
- Lead with the most important element
- Limit total sequence duration to under 700ms
- Use consistent direction for related movements
Best Practices
- Support prefers-reduced-motion
- Don't animate for the sake of it
- Test on low-powered devices
- Keep animations under 400ms for responsive feel
- Use will-change or transform for performance
Version History
-
20e34c4
Current 2026-08-19 23:21
更新描述以明确触发时机和边界，解决与其他技能（如 color-system）的重叠问题，确保描述包含 'Use when' 句式并限制长度。
- acc3e57 2026-07-25 05:15
