GSAP ScrollTrigger
greensock/gsap-skills
Teaches an agent how to wire up GSAP's ScrollTrigger plugin for scroll-linked animation, pinned sections and scrub, including the start and end position syntax.
Diagnose GSAP and ScrollTrigger performance. An agent skill from TheGoat395/Codex-Skills.
Install Gsap Performance
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install TheGoat395/Codex-Skills gsap-performance --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/gsap-performance .claude/skills/gsap-performance && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .claude/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performanceType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install TheGoat395/Codex-Skills gsap-performance --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/gsap-performance .agents/skills/gsap-performance && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .agents/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install TheGoat395/Codex-Skills gsap-performance --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/gsap-performance .cursor/skills/gsap-performance && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .cursor/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/TheGoat395/Codex-Skills.git --path skills/gsap-performance--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install TheGoat395/Codex-Skills gsap-performance --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/gsap-performance .gemini/skills/gsap-performance && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .gemini/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install TheGoat395/Codex-Skills gsap-performanceInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/gsap-performance .github/skills/gsap-performance && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .github/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install TheGoat395/Codex-Skills gsap-performance --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/gsap-performance .opencode/skills/gsap-performance && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "gsap-performance" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/gsap-performance into .opencode/skills/gsap-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsap-performance", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
gsap-performance- GitHub stars
- 126
- Token cost
- ~1.1k tokens
- SKILL.md length
- 536 words
- Files
- 2
- Skills in repo
- 23
- Repo updated
- First seen
- Licence
- MIT
At a glance
Diagnose GSAP and ScrollTrigger performance. An agent skill from TheGoat395/Codex-Skills.
- Tasks that involve Web animation and motion
- SKILL.md covers When to Use This Skill, Prefer Transform and Opacity, will-change and Batch Reads and Writes, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Gsap Performance is an agent skill from TheGoat395/Codex-Skills. Diagnose GSAP and ScrollTrigger performance.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).
It sits in Frontend & Design, covering Web animation and motion. It works with GSAP. The repository describes itself as: Codex-first Agent Skills library for premium frontend, website, motion, accessibility, QA, and handoff workflows. The licence is MIT.
When your agent uses it
- Tasks that involve Web animation and motion
Example prompts
- “/gsap-performance”
What it can do on your machine
Read from SKILL.md and the folder at commit feff772. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are css and javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
gsap.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Gsap Performance loads about 1.1k tokens when it runs. Until then it costs about 15 tokens; SKILL.md has 536 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from TheGoat395/Codex-Skills at commit feff772, republished under its MIT licence (© TheGoat395). 536 words, ~1,117 tokens.
Download SKILL.mdSave it as
.claude/skills/gsap-performance/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- gsap-performance
- description
- Diagnose GSAP and ScrollTrigger performance.
- license
- MIT
GSAP Performance
When to Use This Skill
Apply when the affected animation uses GSAP or ScrollTrigger. Diagnose measured frame, layout/paint or lifecycle cost. Generic motion diagnosis belongs to animation-jank-qa, and a broad release review to motion-performance-qa.
Related skills: motion-performance-qa, animation-jank-qa, animation-tool-router, and reduced-motion-design.
Prefer Transform and Opacity
Animating transform (x, y, scaleX, scaleY, rotation, rotationX, rotationY, skewX, skewY) and opacity usually avoids layout and can reduce paint cost; compositor isolation depends on the browser, layer composition and effect. Measure instead of assuming GPU acceleration. Avoid animating layout-heavy properties when a transform can achieve the same effect.
- Prefer: x, y, scale, rotation, opacity.
- Avoid when possible: width, height, top, left, margin, padding because they trigger layout and can cause jank.
GSAP's x and y use transforms by default; use them instead of left/top for movement.
will-change
Use will-change selectively on elements that will animate soon. It hints the browser to prepare for animation work, but overusing it can increase memory pressure.
will-change: transform;Remove or narrow will-change when an element no longer needs it.
Batch Reads and Writes
GSAP batches updates internally. When mixing GSAP with direct DOM reads/writes or layout-dependent code, avoid interleaving reads and writes in a way that causes repeated layout thrashing. Prefer doing all reads first, then all writes, or let GSAP handle the writes in one go.
Many Elements: Staggers and Lists
- Use stagger instead of many separate tweens with manual delays when the animation is the same.
- For long lists, consider virtualization or animating only visible items; avoid creating hundreds of simultaneous tweens if it causes jank.
- Reuse timelines where possible; avoid creating new timelines every frame.
Frequently Updated Properties
Prefer gsap.quickTo() for properties that update often, such as mouse-follower x/y. It reuses a single tween instead of creating new tweens on each update.
let xTo = gsap.quickTo("#id", "x", { duration: 0.4, ease: "power3" }),
yTo = gsap.quickTo("#id", "y", { duration: 0.4, ease: "power3" });
document.querySelector("#container").addEventListener("mousemove", (e) => {
xTo(e.pageX);
yTo(e.pageY);
});Show full SKILL.md (239 more words)Show less
ScrollTrigger and Performance
- pin: true pins the trigger element during the active range; it is not a GPU-promotion guarantee. Pin only the intended surface and inspect spacing and surrounding layout.
- Numeric scrub sets catch-up smoothing (seconds). Animation can continue after scrolling stops; it does not inherently reduce work. Measure total frame cost and responsiveness on relevant devices.
- Call ScrollTrigger.refresh() only when layout actually changes, such as after content load. Debounce refresh calls when possible.
Reduce Simultaneous Work
- Pause or kill off-screen or inactive animations when they are not visible, such as when the user navigates away.
- Avoid animating huge numbers of properties on many elements at once; simplify or sequence if needed.
Best Practices
- Animate transform and opacity where possible; use will-change only on elements that actually animate.
- Use stagger instead of many separate tweens with manual delays when the animation is the same.
- Use gsap.quickTo() for frequently updated properties.
- Clean up or kill off-screen animations; call ScrollTrigger.refresh() when layout changes, debounced when possible.
Do Not
- Animate width, height, top, or left for movement when x, y, or scale can achieve the same look.
- Set will-change or force3D on every element just in case; reserve them for elements that actually need them.
- Create hundreds of overlapping tweens or ScrollTriggers without testing on lower-end devices.
- Ignore cleanup; stray tweens and ScrollTriggers keep running and can hurt performance and correctness.
Technical semantics: GSAP ScrollTrigger. Verify the installed version for implementation details.
© TheGoat395, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in skills/gsap-performance of TheGoat395/Codex-Skills.
- SKILL.md
- agents/openai.yaml
Open the folder on GitHubat commit feff772
Compare with similar skills
Gsap Performance next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Gsap Performance this skillTheGoat395/Codex-Skills | 126 | — | ~1.1k | Automated safety check: Pass | MIT | |
| GSAP ScrollTriggergreensock/gsap-skills | 16k | 4 repos | ~4.6k | Automated safety check: Pass | MIT | |
| GSAP Core Animationgreensock/gsap-skills | 16k | 3 repos | ~3.7k | Automated safety check: Pass | MIT | |
| GSAP for Reactgreensock/gsap-skills | 16k | 3 repos | ~1.6k | Automated safety check: Pass | MIT | |
| GSAP Timelinegreensock/gsap-skills | 16k | 3 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Gsapboraoztunc/skills | 398 | 5 repos | ~1.9k | Automated safety check: Pass | Apache-2.0 |
Similar skills
GSAP Core Animation
greensock/gsap-skills
Covers the GSAP core API for tweens, easing, staggers, defaults and matchMedia, and when to choose GSAP over CSS animations or other JavaScript animation libraries.
GSAP for React
greensock/gsap-skills
Shows how to run GSAP animations in React and Next.js with the useGSAP hook, refs, scoped selectors and automatic cleanup on unmount.
GSAP Timeline
greensock/gsap-skills
Teaches the GSAP timeline API for sequencing animations: gsap.timeline(), the position parameter, labels, defaults, nesting and playback control.
Gsap
boraoztunc/skills
GSAP animation reference for HyperFrames. An agent skill from boraoztunc/skills.
Auteur
agiwhitelist/auteur
Design and build complete web experiences from scratch — award-level product and marketing pages, cinematic scroll-directed sites where the page is directed like a film, and multi-screen products…
More from TheGoat395/Codex-Skills
All 23 skills in this repoPremium Visual Reference Library
TheGoat395/Codex-Skills
Find references, Viktor Oddy and MotionSites. An agent skill from TheGoat395/Codex-Skills.
Agent Evaluation Operations
TheGoat395/Codex-Skills
Evaluate agent and skill behavior or routing. An agent skill from TheGoat395/Codex-Skills.
Creativity
TheGoat395/Codex-Skills
Generate original ideas or escape fixation. An agent skill from TheGoat395/Codex-Skills.
Final Client Handoff
TheGoat395/Codex-Skills
Prepare verified ownership and delivery notes. An agent skill from TheGoat395/Codex-Skills.
Visual Regression Lab
TheGoat395/Codex-Skills
Compare captures; stitch lazy/animated pages. An agent skill from TheGoat395/Codex-Skills.
Web Reference Research
TheGoat395/Codex-Skills
Analyze selected sources: Viktor or MotionSites. An agent skill from TheGoat395/Codex-Skills.
Related
Works with
Categories
Questions about Gsap Performance
What does Gsap Performance do?
Diagnose GSAP and ScrollTrigger performance. An agent skill from TheGoat395/Codex-Skills. Gsap Performance is an agent skill from TheGoat395/Codex-Skills. Diagnose GSAP and ScrollTrigger performance.
When should I use Gsap Performance?
Gsap Performance fits situations like: tasks that involve Web animation and motion.
How do I install Gsap Performance in Claude Code?
Run `npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a claude-code`. Or copy the skill folder (skills/gsap-performance in TheGoat395/Codex-Skills) into .claude/skills/gsap-performance in your project. Claude Code loads it when a task matches its description.
How do I install Gsap Performance in Codex?
Run `npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a codex`. Or copy the skill folder (skills/gsap-performance in TheGoat395/Codex-Skills) into .agents/skills/gsap-performance in your project. Codex loads it when a task matches its description.
Can I use Gsap Performance in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add TheGoat395/Codex-Skills --skill gsap-performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gsap-performance, .gemini/skills/gsap-performance, .github/skills/gsap-performance and .opencode/skills/gsap-performance in your project.
What does Gsap Performance need to run?
SKILL.md names no scripts, command-line tools or credentials: Gsap Performance is instructions for the agent only.
Does Gsap Performance access the network?
SKILL.md names 1 domain. As links in the text: gsap.com. This is read from the text; nothing was executed.
Is Gsap Performance safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Gsap Performance use?
Gsap Performance is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Gsap Performance use?
About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Gsap Performance?
Skills that share tags, products or a category with Gsap Performance: GSAP ScrollTrigger (greensock/gsap-skills, 16k stars), GSAP Core Animation (greensock/gsap-skills, 16k stars), GSAP for React (greensock/gsap-skills, 16k stars) and GSAP Timeline (greensock/gsap-skills, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Gsap Performance?
TheGoat395 (a GitHub user) maintains it in TheGoat395/Codex-Skills, which has 126 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on September 11, 2026.
Source: TheGoat395/Codex-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.