MCPInstall

lottie-bodymovin

by dylantarreFrontend & Design

Use when implementing Disney's 12 animation principles with Lottie animations exported from After Effects

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/dylantarre/animation-principles --skill lottie-bodymovin
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads lottie-bodymovin automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Lottie Animation Principles

Implement all 12 Disney animation principles using Lottie (Bodymovin) for vector animations.

1. Squash and Stretch

In After Effects before export:

  • Animate Scale X and Y inversely
  • Use expression: s = transform.scale[1]; [100 + (100-s), s]
// Control at runtime
lottie.setSpeed(1.5); // affect squash timing

2. Anticipation

Structure your AE composition:

  1. Frames 0-10: Wind-up pose
  2. Frames 10-40: Main action
  3. Frames 40-50: Settle
// Play anticipation segment
anim.playSegments([0, 10], true);
setTimeout(() => anim.playSegments([10, 50], true), 200);

3. Staging

// Layer multiple Lotties
<div className="scene">
  <Lottie animationData={background} style={{ opacity: 0.6 }} />
  <Lottie animationData={hero} style={{ zIndex: 10 }} />
</div>

4. Straight Ahead / Pose to Pose

Pose to pose in AE:

  • Set keyframes at key poses
  • Let AE interpolate between
  • Use Easy Ease for smoothing
// Jump to specific poses
anim.goToAndStop(25, true); // frame 25

5. Follow Through and Overlapping Action

In After Effects:

  • Offset child layer keyframes by 2-4 frames
  • Use parenting with delayed expressions
  • thisComp.layer("Parent").transform.position.valueAtTime(time - 0.05)

6. Slow In and Slow Out

AE Keyframe settings:

  • Select keyframes > Easy Ease (F9)
  • Use Graph Editor to adjust curves
  • Bezier handles control acceleration
// Adjust playback speed dynamically
anim.setSpeed(0.5); // slower
anim.setSpeed(2); // faster

7. Arc

In After Effects:

  • Use motion paths (position property)
  • Convert keyframes to Bezier
  • Pull handles to create arcs
  • Or use "Auto-Orient to Path"

8. Secondary Action

// Trigger secondary animation
mainAnim.addEventListener('complete', () => {
  secondaryAnim.play();
});

// Or sync with frame
mainAnim.addEventListener('enterFrame', (e) => {
  if (e.currentTime > 15) particleAnim.play();
});

9. Timing

anim.setSpeed(0.5);  // half speed - dramatic
anim.setSpeed(1);    // normal
anim.setSpeed(2);    // double speed - snappy

// Or control frame rate in AE export
// 24fps = cinematic, 30fps = smooth, 60fps = fluid

10. Exaggeration

In After Effects:

  • Push scale beyond 100% (120-150%)
  • Overshoot rotation
  • Use Overshoot expression
  • amp = 15; freq = 3; decay = 5; n = 0; time_start = key(1).time; if (time > time_start) { n = (time - time_start) / thisComp.frameDuration; amp * Math.sin(freq*n) / Math.exp(decay*n/100); } else { 0; }

11. Solid Drawing

In After Effects:

  • Use 3D layers
  • Apply perspective camera
  • Animate Z position and rotation
  • Use depth of field

12. Appeal

Design principles in AE:

  • Smooth curves over sharp angles
  • Consistent timing patterns
  • Pleasing color palette
  • Clean vector shapes
// React Lottie with hover
<Lottie
  animationData={data}
  onMouseEnter={() => anim.setDirection(1)}
  onMouseLeave={() => anim.setDirection(-1)}
/>

Lottie Implementation

import Lottie from 'lottie-react';
import animationData from './animation.json';

<Lottie
  animationData={animationData}
  loop={true}
  autoplay={true}
  style={{ width: 200, height: 200 }}
/>

Key Lottie Features

  • playSegments([start, end]) - Play frame range
  • setSpeed(n) - Control timing
  • setDirection(1/-1) - Forward/reverse
  • goToAndStop(frame) - Pose control
  • addEventListener - Frame events
  • Interactivity via lottie-interactivity

FAQ

What does the lottie-bodymovin skill do?

Use when implementing Disney's 12 animation principles with Lottie animations exported from After Effects

How do I install lottie-bodymovin?

Run npx skills add https://github.com/dylantarre/animation-principles --skill lottie-bodymovin in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/lottie-bodymovin/ (personal) or .claude/skills/lottie-bodymovin/ (project).

Which AI agents can use lottie-bodymovin?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is lottie-bodymovin safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains lottie-bodymovin?

It is published by dylantarre in dylantarre/animation-principles. It has 604 recorded installs.

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