Automated summary
This skill supplies timing, easing and animation-principle guidance (a deliberately restrained take on the 12 Disney principles) for building predictable, professional UI motion.
Strengths
- Concrete timing table per element type (transitions, feedback, modals, loading) with matching easings
- Ready-to-use CSS custom properties for easing curves (--trust-smooth, --trust-enter, --trust-exit)
- Explicit consistency rules: same action = same animation, max ±50ms duration variance
- Translates each Disney principle into restrained, numeric values (5-10% squash, 5-10% exaggeration)
Limitations
- Purely prescriptive: no implementation, components or code samples beyond the CSS variables
- The intentionally conservative values won't suit expressive or playful brand identities
- Accessibility is covered only through respecting system motion preferences
Use it when defining motion for trust-sensitive interfaces such as payments, authentication, forms, settings and confirmation dialogs.
Skip it for playful marketing sites or gamified products where exaggeration and surprise are the point.
Security analysis
SafeThe skill contains only design and animation guidance with no declared tools, no executable commands, no data handling, and no instructions that could cause harm. It is purely advisory content for creating user interface animations.
No concerns found
How this analysis is madeExamples
Add a payment confirmation modal to our checkout page following the trust-reliability guidelines: 250-350ms ease-in-out transitions, the --trust-enter easing for entry, and no bouncy or elastic curves.Review the animations in src/components/FormWizard.tsx and make them consistent with the trust-reliability rules — same action should always use the same animation, with at most ±50ms duration variance.Animate the error and success feedback on our login form so it feels calm and dependable, using the trust-reliability timing table (150-200ms ease-out for feedback) and respecting prefers-reduced-motion.name: trust-reliability description: Use when creating animations that build user confidence, establish credibility, and communicate dependability.
Trust & Reliability Animation
Create animations that establish confidence, consistency, and dependable user experiences.
Emotional Goal
Trust develops through predictable, controlled movements that respect user expectations. Reliability means animations behave consistently and never surprise negatively.
Disney Principles for Trust
Squash & Stretch
Minimal stretch (5-10% maximum). Controlled deformation shows stability. Elements should feel solid and grounded, not rubbery.
Anticipation
Subtle but present (50-100ms). Brief preparation signals what's coming without surprises. Users should always know what to expect next.
Staging
Clear, unambiguous presentation. One action at a time. Important elements are obvious. No hidden or confusing movements.
Straight Ahead Action
Avoid for trust-building. Prefer pose-to-pose for predictable, controlled results. Every frame should be intentional.
Follow Through & Overlapping Action
Restrained follow-through. Elements settle quickly without excessive bouncing. Professional, controlled completion of movements.
Slow In & Slow Out
Smooth, symmetrical easing. ease-in-out creates predictable, professional motion. No sudden accelerations or jarring stops.
Arc
Gentle, predictable curves. Consistent arc patterns across similar interactions. Avoid erratic or unexpected paths.
Secondary Action
Minimal and purposeful. Supporting animations should reinforce, not distract. Loading indicators should be calm and steady.
Timing
Moderate, consistent timing (250-400ms). Never too fast (feels rushed) or too slow (feels broken). Same elements should always animate at same speed.
Exaggeration
Very minimal (5-10%). Near-realistic movements feel professional and trustworthy. Subtle refinement over dramatic effect.
Solid Drawing
Maintain perfect proportions. No warping or distortion. Elements should feel stable and well-constructed.
Appeal
Clean, balanced designs. Symmetry suggests stability. Professional aesthetics over playful charm.
Timing Recommendations
| Element | Duration | Easing |
|---------|----------|--------|
| Transitions | 250-350ms | ease-in-out |
| Feedback | 150-200ms | ease-out |
| Loading | Continuous | linear |
| Modals | 200-300ms | ease-out |
CSS Easing
--trust-smooth: cubic-bezier(0.4, 0, 0.2, 1);
--trust-enter: cubic-bezier(0, 0, 0.2, 1);
--trust-exit: cubic-bezier(0.4, 0, 1, 1);
Consistency Rules
- Same action = same animation, always
- Duration variance: maximum ±50ms
- No random or variable timing
- Respect system motion preferences
- Graceful degradation when disabled
When to Use
- Financial transactions and payments
- Form submissions and data entry
- Authentication flows
- Settings and configuration
- Progress indicators
- Confirmation dialogs
- Enterprise applications
Design-to-Dev Specification Writer
Development
Translate your mockups into technical specifications for developers.
Exports & Barrel Files
Development
Defines conventions for module exports and barrel files: named exports only, no flat wildcards (except `export * as Name` for compound components), sectioned comments, types alongside values, and one export line per source file. Helps maintain consistent, tree-shakeable exports in portal apps using Turbopack or similar bundlers.
Write an Agent Skill
Development
Step-by-step guide to create a structured Agent Skill for coding agents, including directory structure, SKILL.md format, and design principles.