codex-skills-library: Skill for Claude Code

.agents/skills/motion-craft-gsap-review/SKILL.md

motion-craft-gsap-review is a skill for Claude Code, Codex from YankielDBC2/codex-skills-library. It costs 43 tokens per session (426 once invoked), scanned A, original, MIT.

A review process for GSAP-based website animations. GSAP is a JavaScript library for creating animations, while ScrollTrigger connects them to page scrolling.

In plain words
What is it for?
Use it when adding or reviewing scroll effects, parallax, page transitions, reveal animations, hover effects, or other frontend motion.
Why use it?
It helps keep motion readable, accessible, performant, and properly cleaned up when pages change.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is YankielDBC2/codex-skills-library's own configuration. It tells Claude Code and Codex how to work on codex-skills-library itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codex-skills-library configures →

Reuse

Borrowing it

Nothing to install: this file belongs to YankielDBC2/codex-skills-library. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/YankielDBC2/codex-skills-library/main/.agents/skills/motion-craft-gsap-review/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/YankielDBC2/codex-skills-library

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for motion-craft-gsap-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review/github.svg)](https://agentmods.dev/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review)
Your own site
<a href="https://agentmods.dev/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review"><img src="https://agentmods.dev/badge/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for motion-craft-gsap-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review"><img src="https://agentmods.dev/badge/skills/yankieldbc2/codex-skills-library/motion-craft-gsap-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 426 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.00426
Opus 5 $0.00022 $0.00213
Sonnet 5 $0.00009 $0.00085
Haiku 4.5 $0.00004 $0.00043

Measured 12d ago against content hash 638bcaadf8a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

motion-craft-gsap-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/motion-craft-gsap-review/SKILL.md · 53 lines

What it actually says

Motion Craft GSAP Review

Goal

Create tasteful motion that improves clarity, storytelling, and perceived quality without hurting performance or accessibility.

When to use

Use for GSAP timelines, ScrollTrigger sections, sticky storytelling, reveal animations, hover/tap microinteractions, parallax, animated hero sections, and motion audits.

Workflow

  1. Inspect whether GSAP or another motion library is already installed before adding dependencies.
  2. Ask before adding GSAP as a new production dependency if it is not already present.
  3. Use client components only where browser APIs or animation lifecycle are needed.
  4. Prefer transform and opacity over layout properties like top, left, width, and height.
  5. Use timelines for coordinated sequences and keep motion purposeful, short, and readable.
  6. Use gsap.context or equivalent cleanup so animations do not leak across route changes.
  7. Respect prefers-reduced-motion and provide a reduced or disabled motion path.
  8. For ScrollTrigger, define clear trigger, start/end, scrub/pin only when needed, and clean up on unmount.

Quality bar

  • Run lint/type/build or nearest validation command.
  • Check browser console for GSAP/ScrollTrigger errors when possible.
  • Verify route changes or component unmounts do not leave active animations.

Validation

  • Motion supports hierarchy or story instead of decorating randomly.
  • Animations feel smooth, quick, and intentional.
  • No transition-all spam, no layout-thrashing animations, no motion that blocks interaction.
  • Reduced-motion users are respected.

Final response

  • List animations added or changed, cleanup strategy, and reduced-motion handling.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 53 lines · 43 tokens per session scan A 638bcaadf8a5

Subscribe to this mod's changes

motion-craft-gsap-review is a skill published in the GitHub repository YankielDBC2/codex-skills-library (10 stars, last pushed 1mo ago), licensed MIT. It adds 43 tokens to every session and 426 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.