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boraoztuncboraoztunc/skills/lottie/SKILL.md

lottie

Skill337 starsChanged 5 months agoApache-2.0View on GitHub

Lottie and dotLottie adapter patterns for HyperFrames. Use when embedding lottie-web JSON animations, .lottie files, @lottiefiles/dotlottie-web players, registering instances on window.__hfLottie, or making After Effects exports deterministic in HyperFrames.

We split this skill into the rules it gives an agent

4 rules. About 0 are common, 3 are distinctive, and 1 is very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈3

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Prefer loop: false unless the user explicitly wants a loop.

    line 14
  2. Distinctive:

    Keep the Lottie container dimensions stable with CSS.

    line 16
  3. Distinctive:

    After Effects exports that are already known to render correctly in lottie-web.

    line 87
  4. Distinctive:

    After editing a Lottie composition:

    line 100

≈ “Common” is an estimate: at least 1 in 5 of the 308,232 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Lottie for HyperFrames

HyperFrames can seek both lottie-web and dotLottie players through its lottie runtime adapter. Lottie is a strong fit because the animation timeline is already encoded in the asset; HyperFrames only needs a player object it can seek.

Contract

  • Load assets from local project files, usually under assets/.
  • Set autoplay: false.
  • Prefer loop: false unless the user explicitly wants a loop.
  • Register every returned animation or player on window.__hfLottie.
  • Keep the Lottie container dimensions stable with CSS.

The adapter seeks lottie-web with goToAndStop(timeMs, false) and dotLottie with frame or percentage APIs depending on player shape.

lottie-web Pattern

<div id="logo-lottie" class="lottie-layer"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.12.2/lottie.min.js"></script>
<script>
  const anim = lottie.loadAnimation({
    container: document.getElementById("logo-lottie"),
    renderer: "svg",
    loop: false,
    autoplay: false,
    path: "assets/logo-reveal.json",
  });

  window.__hfLottie = window.__hfLottie || [];
  window.__hfLottie.push(anim);
</script>
.lottie-layer {
  width: 100%;
  height: 100%;
}

dotLottie Pattern

<canvas id="product-lottie" class="lottie-canvas"></canvas>
<script src="https://unpkg.com/@lottiefiles/dotlottie-web"></script>
<script>
  const player = new DotLottie({
    canvas: document.getElementById("product-lottie"),
    src: "assets/product-flow.lottie",
    autoplay: false,
    loop: false,
  });

  window.__hfLottie = window.__hfLottie || [];
  window.__hfLottie.push(player);
</script>
.lottie-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

Multiple Animations

Push each player into the same registry:

window.__hfLottie = window.__hfLottie || [];
window.__hfLottie.push(backgroundAnim);
window.__hfLottie.push(iconAnim);
window.__hfLottie.push(confettiAnim);

HyperFrames seeks them all to the same composition time.

Good Uses

  • After Effects exports that are already known to render correctly in lottie-web.
  • Logo reveals, icon loops, decorative accents, and product UI motion.
  • Translating Remotion Lottie usage into plain HyperFrames HTML.

Avoid

  • Relying on remote path URLs at render time.
  • Starting playback with play().
  • Assuming unsupported After Effects effects will survive export. Test the JSON or .lottie file in a browser first.
  • Loading a player asynchronously and registering it after HyperFrames validation has already inspected the page.

Validation

After editing a Lottie composition:

npx hyperframes lint
npx hyperframes validate

Credits And References

Download now (ZIP)

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