Ready to supercharge your AI agents?

Install any skill in seconds. Free to start, no credit card required.

GSAP · cowork-os | DecimalAI

frontendby cowork-os

GSAP

cowork-os/gsap

Source cowork-os/cowork-os ↗License MIT

GSAP animation reference for HyperFrames. Covers gsap.to(), from(), fromTo(), easing, stagger, defaults, timelines (gsap.timeline(), position parameter, labels, nesting, playback), and performance (transforms, will-change, quickTo).

SkillScore100Maintained

Automatic

Frontend / UI pack

Last verified 8/20/2026

What it changes

Passed 22 of 22 test cases with the skill, and 13 of 22 without it.

Without skill59%

With skill100%

Checks it passed that the model alone missed

Animates autoAlpha instead of opacity.
Uses autoAlpha to control element visibility.
Uses x and y properties instead of top and left.

and 6 more in the full report

9 fixed13 passed either way0 still failing0 broke

Pass-rate lift: +41 pp
Tokens: +73%
Agent turns: 0%
Response time: -37%

Model gemini-3.6-flashMeasured 8/20/2026v122 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/cowork-os-gsap/SKILL.md https://app.decimal.ai/s/cowork-os-gsap/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add cowork-os-gsap, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/cowork-os-gsap/ and pins it in .decimal/skills.lock

decimalai skills add cowork-os-gsap

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/cowork-os-gsap/SKILL.md https://app.decimal.ai/s/cowork-os-gsap/SKILL.md

Raw file: /s/cowork-os-gsap/SKILL.md ↗ · machine-readable summary at /s/cowork-os-gsap.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 9

Prompt

I have a notification toast element '.toast' that might already have inline styles applied from previous animations. I want to animate it sliding up from an explicit off-screen offset of 100px to exactly 0px, ensuring both the starting state and ending state are strictly guaranteed regardless of current DOM properties. Provide the JavaScript animation call.

What was checked, without and with the skill
Checked	Without skill	With skill
Uses gsap.fromTo to define explicit initial and final property states.	Missed	Passed

case-11 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md206 lines3 filesincludes scripts

GSAP

Core Tween Methods

gsap.to(targets, vars) — animate from current state to vars. Most common.
gsap.from(targets, vars) — animate from vars to current state (entrances).
gsap.fromTo(targets, fromVars, toVars) — explicit start and end.
gsap.set(targets, vars) — apply immediately (duration 0).

Always use camelCase property names (e.g. backgroundColor, rotationX).

Common vars

duration — seconds (default 0.5).
delay — seconds before start.
ease — "power1.out" (default), "power3.inOut", "back.out(1.7)", "elastic.out(1, 0.3)", "none".
stagger — number 0.1 or object: { amount: 0.3, from: "center" }, { each: 0.1, from: "random" }.
overwrite — false (default), true, or "auto".
repeat — number or -1 for infinite. yoyo — alternates direction with repeat.
onComplete, onStart, onUpdate — callbacks.
immediateRender — default true for from()/fromTo(). Set false on later tweens targeting the same property+element to avoid overwrite.

Transforms and CSS

Prefer GSAP's transform aliases over raw transform string:

GSAP property	Equivalent
`x`, `y`, `z`	translateX/Y/Z (px)
`xPercent`, `yPercent`	translateX/Y in %
`scale`, `scaleX`, `scaleY`	scale
`rotation`	rotate (deg)
`rotationX`, `rotationY`	3D rotate
`skewX`, `skewY`	skew
`transformOrigin`	transform-origin

autoAlpha — prefer over opacity. At 0: also sets visibility: hidden.
CSS variables — "--hue": 180.
svgOrigin (SVG only) — global SVG coordinate space origin. Don't combine with transformOrigin.
Directional rotation — "360_cw", "-170_short", "90_ccw".

Track record

Benchmark

22 / 22

test cases passed, vs 13 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

cowork-os / cowork-os

resources/skills/gsap/SKILL.md

View on GitHub ↗

License MITImported 8/26/2026Version v1Bundled 2 files · scripts

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

GSAP

Core Tween Methods

Common vars

Transforms and CSS

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills