Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
> **Version-sensitive.** Every API name, SDK gate and browser-support claim below was
> verified on **2026-09-08** against primary sources. What against, and when, is in
> `_jutsu/VERSIONS.md`. If that date is old, re-verify before acting on a version number.
# GSAP - Animation Engine
> GSAP 3.15 (released 13 Apr 2026). Since 3.13 the entire library - including every former Club plugin (SplitText, MorphSVG, DrawSVG, ScrollSmoother, InertiaPlugin, MotionPathHelper, CustomEase…) - ships in the public `gsap` npm package and is free, commercial use included, under the GreenSock Standard "no charge" license. There is no Club paywall.
> GreenSock also publish official agent skills (MIT, 8 skills: core, timeline, scrolltrigger, plugins, utils, react, performance, frameworks): https://github.com/greensock/gsap-skills - worth installing alongside this sub-skill.
## When to use GSAP
| Criteria | CSS Transitions | Framer Motion | GSAP |
| --------------------- | --------------- | ------------- | ----------------- |
| Hover / simple toggle | Yes | Yes | Overkill |
…
The line at the top of this page pins the label git:20260928.a0f6e09, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (6208 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
athevon/genjutsu · 718 stars · license a license file GitHub does not identify · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ceqizjqsmw3dtaex
GET https://markdownregistry.com/api/v1/resolve?ref=athevon/genjutsu/gsap
GET https://markdownregistry.com/api/v1/blob/3bb575e5b5f68afc02d1c6f7538eb3e9c4f3086791f5a588d0d70bcab8857ea9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
athevon/genjutsu · skills/_jutsu/orchestration/SKILL.md · Running a team of subagents on one design build: clone briefs, disjoint file ownership, isolated builds, the evidence…
bjornmelin/dev-skills · skills/gsap/SKILL.md · GSAP animation for React, Next.js and vanilla JS. Use for scroll-driven animation, pinning, parallax, timelines…
