motion

name	motion
description	Motion (Framer Motion) React animation library plus local polish and bar-raising guidance. Use for drag-and-drop, scroll animations, gestures, SVG morphing, motion audits, or refining the quality bar of interactive UI work.
license	MIT

Motion Animation Library

Overview

Motion (package: motion, formerly framer-motion) is the official Motion Division animation library for React and JavaScript. It provides declarative animations, gestures, scroll effects, layout transitions, and spring physics.

Key Capabilities:

• Gestures: drag, hover, tap, pan, focus with cross-device support
• Scroll Animations: viewport-triggered, scroll-linked, parallax effects
• Layout Animations: FLIP technique for smooth layout changes, shared element transitions
• Spring Physics: Natural, customizable motion with physics-based easing
• SVG: Path morphing, line drawing, attribute animation
• Exit Animations: AnimatePresence for unmounting transitions
• Performance: Hardware-accelerated, ScrollTimeline API, bundle optimization (2.3 KB - 34 KB)

Production Tested: React 19, Next.js 15, Vite 6, Tailwind v4

For current package versions, API details, examples, and tutorials, use the official Motion pages listed in references/official-learning-path.md.

Two-Lane Usage Model:

• Use references/official-learning-path.md and references/tutorials-and-examples.md for plain official documentation, latest API pages, tutorials, and examples.
• Use references/opinionated-guide.md for the recommended subset and local defaults about the good parts.

---

When to Use This Skill

✅ Use Motion When:

Complex Interactions:

• Drag-and-drop interfaces (sortable lists, kanban boards, sliders)
• Hover states with scale/rotation/color changes
• Tap feedback with bounce/squeeze effects
• Pan gestures for mobile-friendly controls

Scroll-Based Animations:

• Hero sections with parallax layers
• Scroll-triggered reveals (fade in as elements enter viewport)
• Progress bars linked to scroll position
• Sticky headers with scroll-dependent transforms

Layout Transitions:

• Shared element transitions between routes (card → detail page)
• Expand/collapse with automatic height animation
• Grid/list view switching with smooth repositioning
• Tab navigation with animated underline

Advanced Features:

• SVG line drawing animations
• Path morphing between shapes
• Spring physics for natural bounce
• Orchestrated sequences (staggered reveals)
• Modal dialogs with backdrop blur

Bundle Optimization:

• Need 2.3 KB animation library (useAnimate mini)
• Want to reduce Motion from 34 KB to 4.6 KB (LazyMotion)

Motion Quality Reviews:

• You want to raise the perceived product quality, not just "add animation"
• You want a taste/polish pass after the main interaction already works
• You need a review lens for rhythm, hierarchy, restraint, and accessibility

❌ Don't Use Motion When:

• Simple list animations (use auto-animate instead: 3.28 KB vs 34 KB)
• Static content without interactions
• Cloudflare Workers (use framer-motion v12.23.24 workaround - see Known Issues)
• 3D animations (use Three.js or React Three Fiber instead)

---

Installation

Latest Stable Version

bun add motion  # preferred
# or: npm install motion
# or: yarn add motion
# or: pnpm add motion

Do not hardcode a version from this skill. Check the official install docs when the user asks for the latest version or when package compatibility matters.

Package Information

• Bundle Size:
  • Full motion component: ~34 KB minified+gzipped
  • LazyMotion + m component: ~4.6 KB
  • useAnimate mini: 2.3 KB (smallest React animation library)
  • useAnimate hybrid: 17 KB
• Dependencies: React 18.2+ or newer
• TypeScript: Native support included (no @types package needed)

---

Core Concepts

1. The motion Component

Transform any HTML/SVG element into an animatable component:

import { motion } from "motion/react"

// Basic animation
<motion.div
  initial={{ opacity: 0, y: 20 }}
  animate={{ opacity: 1, y: 0 }}
  transition={{ duration: 0.5 }}
>
  Content fades in and slides up
</motion.div>

// Gesture controls
<motion.button
  whileHover={{ scale: 1.1 }}
  whileTap={{ scale: 0.95 }}
>
  Click me
</motion.button>

Props:

• initial: Starting state (object or variant name)
• animate: Target state (object or variant name)
• exit: Unmounting state (requires AnimatePresence)
• transition: Timing/easing configuration
• whileHover, whileTap, whileFocus: Gesture states
• whileInView: Viewport-triggered animation
• drag: Enable dragging ("x", "y", or true for both)
• layout: Enable FLIP layout animations

2. Variants (Animation Orchestration)

Named animation states that propagate through component tree:

const variants = {
  hidden: { opacity: 0, y: 20 },
  visible: { opacity: 1, y: 0 }
}

<motion.div variants={variants} initial="hidden" animate="visible">
  Content
</motion.div>

For advanced orchestration (staggerChildren, delayChildren, dynamic variants), load references/core-concepts-deep-dive.md.

3. AnimatePresence (Exit Animations)

Enables animations when components unmount:

import { AnimatePresence } from "motion/react"

<AnimatePresence>
  {isVisible && (
    <motion.div
      key="modal"
      initial={{ opacity: 0 }}
      animate={{ opacity: 1 }}
      exit={{ opacity: 0 }}
    >
      Modal content
    </motion.div>
  )}
</AnimatePresence>

Critical Rules:

• AnimatePresence must stay mounted (don't wrap in conditional)
• All children must have unique key props
• AnimatePresence wraps the conditional, not the other way around

Common Mistake (exit animation won't play):

// ❌ Wrong - AnimatePresence unmounts with condition
{isVisible && (
  <AnimatePresence>
    <motion.div>Content</motion.div>
  </AnimatePresence>
)}

// ✅ Correct - AnimatePresence stays mounted
<AnimatePresence>
  {isVisible && <motion.div key="unique">Content</motion.div>}
</AnimatePresence>

4. Layout Animations (FLIP)

Automatically animate layout changes:

<motion.div layout>
  {isExpanded ? <FullContent /> : <Summary />}
</motion.div>

Special props: layoutId (shared element transitions), layoutScroll (scrollable containers), layoutRoot (fixed positioning).

For advanced patterns (LayoutGroup, layoutId orchestration), load references/core-concepts-deep-dive.md.

5. Scroll Animations

// Viewport-triggered
<motion.div
  initial={{ opacity: 0, y: 50 }}
  whileInView={{ opacity: 1, y: 0 }}
  viewport={{ once: true }}
>
  Fades in when entering viewport
</motion.div>

// Scroll-linked (parallax)
import { useScroll, useTransform } from "motion/react"
const { scrollYProgress } = useScroll()
const y = useTransform(scrollYProgress, [0, 1], [0, -300])
<motion.div style={{ y }}>Parallax effect</motion.div>

For advanced scroll patterns (useScroll offsets, useTransform easing, parallax layers), load references/core-concepts-deep-dive.md.

6. Gestures

<motion.div drag="x" dragConstraints={{ left: -200, right: 200 }}>
  Drag me
</motion.div>

Available: whileHover, whileTap, whileFocus, whileDrag, whileInView, drag.

For advanced drag controls (momentum, elastic, event handlers), load references/core-concepts-deep-dive.md.

7. Spring Physics

<motion.div
  animate={{ x: 100 }}
  transition={{ type: "spring", stiffness: 100, damping: 10 }}
/>

Common presets: Bouncy { stiffness: 300, damping: 10 }, Smooth { stiffness: 100, damping: 20 }.

For spring tuning (mass, visualizer, presets), load references/core-concepts-deep-dive.md.

8. Polish And Bar-Raising Layer

When the request is not just "make this animate" but "make this feel considered," load references/polish-and-bar-raising.md.

Use that review pass after the functional animation works, not before. It is meant to improve motion quality, information hierarchy, pacing, and restraint.

9. Opinionated Guide

When the task is standard product UI work and the agent does not need the whole Motion surface, load references/opinionated-guide.md.

That guide captures the preferred subset, default biases, and what to avoid by default.

---

Integration Guides

Vite: bun add motion → import { motion } from "motion/react" (works out of the box)

Next.js App Router: Requires "use client" directive or client component wrapper

"use client"
import { motion } from "motion/react"

Tailwind: ⚠️ Remove transition-* classes (causes conflicts with Motion animations)

Cloudflare Workers: Verify current compatibility in the official docs and issue tracker before pinning a workaround. This skill no longer treats an older version-specific workaround as authoritative.

For complete integration guides (Next.js patterns, SSR, framework-specific issues), load references/nextjs-integration.md.

---

Performance Optimization

Bundle Size: Use LazyMotion (34 KB → 4.6 KB):

import { LazyMotion, domAnimation, m } from "motion/react"
<LazyMotion features={domAnimation}>
  <m.div>Only 4.6 KB!</m.div>
</LazyMotion>

Large Lists: Use virtualization (react-window, react-virtuoso) for 50+ animated items.

For complete optimization guide (hardware acceleration, memory profiling, production benchmarks), load references/performance-optimization.md.

---

Accessibility

Respect prefers-reduced-motion:

import { MotionConfig } from "motion/react"
<MotionConfig reducedMotion="user">
  <App />
</MotionConfig>

Keyboard Support: Use whileFocus for keyboard-triggered animations.

<motion.button whileFocus={{ scale: 1.1 }} tabIndex={0}>
  Keyboard accessible
</motion.button>

For complete accessibility guide (ARIA patterns, screen readers, AnimatePresence workaround, testing), load references/accessibility-guide.md.

---

Common Patterns

Modal Dialog (AnimatePresence + backdrop):

<AnimatePresence>
  {isOpen && (
    <motion.dialog exit={{ opacity: 0 }}>Content</motion.dialog>
  )}
</AnimatePresence>

Accordion (height animation):

<motion.div animate={{ height: isOpen ? "auto" : 0 }}>
  Content
</motion.div>

For 15+ production patterns (carousel, tabs, scroll reveal, parallax, notifications), load references/common-patterns.md.

---

Known Issues & Solutions

Issue 1: AnimatePresence Exit Not Working (MOST COMMON)

Symptom: Components disappear instantly without exit animation.

Solution: AnimatePresence must stay mounted, wrap the conditional (not be wrapped by it):

// ❌ Wrong
{isVisible && <AnimatePresence><motion.div>Content</motion.div></AnimatePresence>}

// ✅ Correct
<AnimatePresence>
  {isVisible && <motion.div key="unique">Content</motion.div>}
</AnimatePresence>

Issue 2: Next.js "use client" Missing

Symptom: Build fails with "motion is not defined" or SSR errors.

Solution: Add "use client" directive:

"use client"
import { motion } from "motion/react"

Issue 3: Tailwind Transitions Conflict

Symptom: Animations stutter or don't work.

Solution: Remove transition-* classes (Motion overrides CSS transitions):

// ❌ Wrong: <motion.div className="transition-all" animate={{ x: 100 }} />
// ✅ Correct: <motion.div animate={{ x: 100 }} />

Issue 4: Cloudflare Workers Build Errors

Symptom: Wrangler build fails when using motion package.

Solution: Check the current upstream compatibility status before pinning a package swap or version workaround. Do not assume an older workaround is still correct.

Issue 5: Large List Performance

Symptom: 50-100+ animated items cause severe slowdown.

Solution: Use virtualization (react-window, react-virtuoso).

For 5+ additional issues (layoutScroll, layoutRoot, AnimatePresence + layoutId), load references/nextjs-integration.md or references/core-concepts-deep-dive.md.

---

When to Load References

Claude should load these references based on user needs:

Load references/core-concepts-deep-dive.md when:

• User asks about variants orchestration (staggerChildren, delayChildren, dynamic variants)
• User needs advanced layout animations (layoutId shared transitions, LayoutGroup)
• User wants scroll-linked animations (useScroll offsets, useTransform easing, parallax layers)
• User needs complex drag patterns (momentum, elastic, event handlers, constraints)
• User asks about spring physics tuning (mass parameter, visualizer, custom presets)

Load references/performance-optimization.md when:

• User wants to reduce bundle size below 4.6 KB (useAnimate mini, LazyMotion comparison)
• User mentions "app is slow", "janky animations", "laggy", or "performance issues"
• User has 50+ animated items in a list (virtualization needed)
• User needs memory profiling or production benchmarks

Load references/nextjs-integration.md when:

• User is building with Next.js (App Router or Pages Router)
• User encounters SSR errors, "use client" errors, or hydration issues
• User asks about route transitions or page navigation animations
• User needs Next.js-specific workarounds (Reorder component, AnimatePresence soft navigation)

Load references/accessibility-guide.md when:

• User asks about "prefers-reduced-motion" or accessibility compliance
• User needs ARIA integration patterns (roles, labels, announcements)
• User wants screen reader compatibility
• User mentions accessibility audits or WCAG compliance
• User asks about AnimatePresence reducedMotion workaround (known issue #1567)

Load references/common-patterns.md when:

• User asks for specific UI patterns (modal, accordion, carousel, tabs, dropdown, toast, etc.)
• User needs copy-paste code examples for production use
• User wants to see 15+ real-world animation patterns

Load references/motion-vs-auto-animate.md when:

• User is deciding between Motion and AutoAnimate libraries
• User mentions "simple list animations" or "bundle size concerns"
• User asks "which animation library should I use?" or "is Motion overkill?"
• User needs feature comparison or decision matrix

Load references/official-learning-path.md when:

• User wants canonical Motion documentation rather than local summaries
• User asks for tutorials, official examples, or recommended learning order
• User asks for the latest version, latest API guidance, or installation details
• User wants the optional Motion MCP or AI kit workflow

Load references/tutorials-and-examples.md when:

• User wants worked examples or tutorial-first learning material
• User needs inspiration or implementation comparison
• User wants to start from official examples before using local templates

Load references/opinionated-guide.md when:

• User wants the recommended subset instead of the full API
• The task is routine product UI motion rather than library exploration
• You want defaults about what to use first and what to avoid by default
• You want to separate plain docs from preferred practice

---

Templates

This skill includes 5 production-ready templates in the templates/ directory:

1. motion-vite-basic.tsx - Basic Vite + React + TypeScript setup with common animations
2. motion-nextjs-client.tsx - Next.js App Router pattern with client component wrapper
3. scroll-parallax.tsx - Scroll animations, parallax, and viewport triggers
4. ui-components.tsx - Modal, accordion, carousel, tabs with shared underline
5. layout-transitions.tsx - FLIP layout animations and shared element transitions

Copy templates into your project and customize as needed.

---

References

This skill includes curated local reference guides:

• motion-vs-auto-animate.md - Decision guide: when to use Motion vs AutoAnimate
• performance-optimization.md - Bundle size, LazyMotion, virtualization, hardware acceleration
• nextjs-integration.md - App Router vs Pages Router, "use client", known issues
• common-patterns.md - Top 15 patterns with full code examples
• official-learning-path.md - Official docs, examples, tutorials, and optional Motion AI kit/MCP entrypoints
• tutorials-and-examples.md - Generated official learning surfaces for worked examples and tutorial paths
• opinionated-guide.md - Preferred subset and default practices for product UI work
• polish-and-bar-raising.md - Local refinement lens for quality, rhythm, hierarchy, and restraint

See references/ directory for detailed guides.

---

Scripts

This skill includes 2 automation scripts:

• init-motion.sh - One-command setup with framework detection (Vite, Next.js, Cloudflare Workers)
• optimize-bundle.sh - Convert existing Motion code to LazyMotion for smaller bundle

See scripts/ directory for automation tools.

---

Official Documentation

• Official Site: https://motion.dev
• React Docs: https://motion.dev/docs/react
• Install Docs: https://motion.dev/docs/react-installation
• Tutorials: https://motion.dev/tutorials
• Examples: https://examples.motion.dev/react
• GitHub: https://github.com/motiondivision/motion
• Optional AI Kit / MCP: https://motion.dev/docs/ai-kit

Related Skills: auto-animate (simple lists), tailwind-v4-shadcn (styling), nextjs (App Router), cloudflare-worker-base

Motion vs AutoAnimate: Load references/motion-vs-auto-animate.md for detailed comparison.

• Open an issue: https://github.com/secondsky/claude-skills/issues
• See templates and references for detailed examples

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Production Tested: ✅ React 19 + Next.js 15 + Vite 6 + Tailwind v4 Token Savings: ~83% Error Prevention: 100% (29+ documented errors prevented) Bundle Size: 2.3 KB (mini) - 34 KB (full), optimizable to 4.6 KB with LazyMotion Accessibility: MotionConfig reducedMotion support Ready to use! Install with ./scripts/install-skill.sh motion