# GSAP Core — guide skill for animation & motion graphics

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Official GSAP core guide: to/from/fromTo tweens, eases, staggers, defaults and transforms for DOM and SVG motion.

- **Type:** [Guide](https://skills.varg.ai/guides.md) · [Animation & motion graphics](https://skills.varg.ai/browse/skills/animation.md)
- **Slug:** `gsap-core`
- **Status:** live
- **Publisher:** GSAP (GreenSock) (vendor, verified)
- **License:** MIT
- **Source:** https://github.com/greensock/gsap-skills/tree/main/skills/gsap-core
- **Works in:** Claude Code, Codex, Cursor
- **Requires:** The gsap npm package
- **Cost:** Free — GSAP is free under Webflow's Standard 'no charge' license
- **Adoption:** 75,800 installs, 17,222 GitHub stars (skills.sh, 2026-10-26)

## What it does

GreenSock's official skill for the GSAP core API: `gsap.to()`, `from()` and `fromTo()`, common vars, transform aliases (`x`, `y`, `scale`, `rotation`, `autoAlpha`), staggers, built-in and custom eases, defaults, function-based and relative values, and `gsap.matchMedia()` for breakpoints and reduced motion. It closes with GSAP's own best practices and a do-not list, such as preferring transforms over layout properties and setting `immediateRender: false` when stacking `from()` tweens on one property. GSAP is HyperFrames' default animation runtime, so this is the motion vocabulary of most HTML-to-video compositions.

## Use when

- Tweens, eases and staggers for DOM or SVG animation
- Picking an animation library for an HTML or React video
- Responsive or reduced-motion variants with gsap.matchMedia()

## Not for

- Sequencing many steps (use GSAP Timeline)
- Text splitting, SVG morphing or motion paths (use GSAP Plugins)
- Scroll-linked web animation (GSAP's ScrollTrigger skill)

## Install

- Claude Code: `npx skills add greensock/gsap-skills --skill gsap-core -a claude-code`
- Codex: `npx skills add greensock/gsap-skills --skill gsap-core -a codex`
- Cursor: `npx skills add greensock/gsap-skills --skill gsap-core -a cursor`

## Example output

https://skills.varg.ai/previews/gsap-core.mp4 — Featured community demo on GSAP's Core page ('canvas particles'): staggered shapes tweening outward from the centre (credit: Tom Miller, featured on gsap.com, https://gsap.com/core/)

## More animation & motion graphics skills

- [Day in My Life](https://skills.varg.ai/skills/hyperframes-day-in-my-life.md): A 60–75 s hand-drawn ink film of your agent's day with you, built from local Claude Code history, scored for strings.
- [p5 Paint Animation](https://skills.varg.ai/skills/hyperframes-p5-paint-animation.md): Handwriting that writes itself, photos that paint themselves and clips repainted as living paintings, in p5.js code.
- [Session Story](https://skills.varg.ai/skills/hyperframes-session-story.md): A 40–70 s watercolor film of a typical session with your agent, told in your real messages, with its own score.
- [Remotion Markup](https://skills.varg.ai/skills/remotion-markup.md): Write Remotion markup that animates well: timing, transitions, motion blur, effects, audio, fonts and 3D.
- [Motion AI Kit](https://skills.varg.ai/skills/motion-ai-kit.md): Write production-grade UI animation with Motion or CSS: best practices, docs search, springs, perf audits.
- [Motion Design](https://skills.varg.ai/skills/lottiefiles-motion-design.md): Animate with intent: timing, easing, choreography and Disney principles for UI and motion graphics.