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technical-constraints

technical-constraints

github.com/dylantarreDevelopment132493 installsUpdated 43w ago
Repository

About technical-constraints

A guide for developers adapting animation designs to browser, device, framework, and file-size limitations. It covers trade-offs, fallbacks, feature checks, and testing across target environments.

Key features

  1. 01Platform limitation diagnosis
  2. 02CSS and JavaScript trade-offs
  3. 03Progressive enhancement guidance
  4. 04Feature detection and fallback patterns
  5. 05Device and browser test checklist

Use cases

  1. 01Adapting animation for older browsers
  2. 02Reducing animation load on mobile devices
  3. 03Planning fallbacks for constrained environments

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/dylantarre/animation-principles --skill technical-constraints

After installing, type/technical-constraintsin Claude Code to confirm it loaded.

Details

From the project README

Technical Constraints

Work within platform limitations while preserving animation intent.

Problem Indicators

  • Animation doesn't work on target browsers
  • Mobile devices can't handle animation
  • Framework limitations block implementation
  • File size constraints (Lottie, sprites)
  • Email/constrained environment needs

Diagnosis by Principle

Straight Ahead vs Pose-to-Pose

Issue: Runtime calculations too expensive Fix: Pre-calculate animations. Use CSS keyframes (pose-to-pose) over JS frame-by-frame (straight ahead).

Solid Drawing

Issue: Complex shapes cause rendering issues Fix: Simplify geometry. Use CSS shapes over SVG paths. Reduce polygon counts in 3D.

Timing

Issue: Consistent timing across devices Fix: Use relative units. Test on slowest target device. Consider requestAnimationFrame for JS.

Secondary Action

Issue: Budget only allows essential animation Fix: Prioritize primary actions. Cut secondary animations first when constrained.

Staging

Issue: Limited screen real estate Fix: Animate in place. Use transforms that don't affect layout. Consider reduce-motion as default on constrained platforms.

Quick Fixes

  1. Use CSS over JavaScript - Better browser optimization
  2. Progressive enhancement - Core function works without animation
  3. Feature detection - Check capability before animating
  4. Fallback states - Static alternative for unsupported browsers
  5. Lazy load animation libraries - Don't block initial render

Troubleshooting Checklist

  • List target browsers/devices
  • Check caniuse.com for feature support
  • Test on oldest supported browser
  • Measure animation impact on bundle size
  • Verify fallback experience is acceptable
  • Test with animation disabled
  • Check framework animation capabilities
  • Consider server-rendered alternatives (GIF, video)

Code Pattern

// Feature detection
const supportsAnimation =
  'animate' in Element.prototype &&
  CSS.supports('transform', 'translateZ(0)');

if (supportsAnimation) {
  element.animate(keyframes, options);
} else {
  element.classList.add('final-state');
}

// Progressive enhancement
@supports (animation: name) {
  .element {
    animation: fadeIn 200ms ease-out;
  }
}

Platform-Specific Tips

  • Email: Use GIF or static images
  • iOS Safari: Test -webkit- prefixes
  • Older Android: Reduce animation complexity
  • Low-end devices: Use prefers-reduced-motion as proxy

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