How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/calesthio/openmontage --skill svg-character-animationBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Original skill document
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
SVG Character Animation
Use this skill when animating character rigs made from SVG parts.
Runtime Rules
- Animate transforms (
x,y,scale,rotation) rather than layout. - Use timelines for multi-part acting beats.
- For SVG elements, use stable pivots (
svgOriginor correctly scoped
transform origins).
- In Remotion, do not let GSAP advance with
requestAnimationFrame; drive a
paused timeline from the current frame.
Browser Pattern
js
gsap.set("#arm_right", { svgOrigin: "390 310" });
const tl = gsap.timeline({ defaults: { ease: "power2.inOut" } });
tl.to("#head", { rotation: -8, duration: 0.2 })
.to("#arm_right", { rotation: 35, duration: 0.4 }, "<");Remotion Pattern
tsx
const frame = useCurrentFrame();
const progress = frame / durationInFrames;
timeline.progress(progress);HyperFrames Pattern
Use HTML/SVG/GSAP components with deterministic timelines and validate via the HyperFrames CLI before final render.
Quality Checklist
- Parts stay connected at pivots during motion.
- Blinks, gaze, and mouth shapes are separate enough to read.
- Pose holds are long enough to communicate emotion.
- Frame sampling shows meaningful deltas, not frozen animation.
Sources
- GSAP core transform properties and SVG handling:
https://gsap.com/docs/v3/GSAP/CorePlugins/CSS/
- GSAP timelines and sequencing:
https://gsap.com/docs/v3/GSAP/Timeline/
- Remotion
useCurrentFrame:
https://www.remotion.dev/docs/use-current-frame
