gsap-scrolltrigger

gsap-scrolltrigger is a skill for Claude Code, Codex from ForgeyClap/claude-forge. It costs 68 tokens per session (4,995 once invoked), scanned E, a copy of gsap-scrolltrigger, MIT.

A reference guide for GSAP ScrollTrigger, a tool for linking web animations to the user's scrolling. It covers triggers, pinned sections, scrubbed animation, and parallax effects.

In plain words
What is it for?
Use it to build scroll-based animations, pinned sections, parallax effects, and animations controlled by scrolling.
Why use it?
It helps coordinate animation with scroll position without designing the behavior from scratch. It is for pages where content moves, stays fixed, or changes as someone scrolls.

Skill for Claude CodeCodex

Part of the forge plugin — 11 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/forgeyclap/claude-forge/gsap-scrolltrigger
Any agent
npx skills add ForgeyClap/claude-forge --skill gsap-scrolltrigger
Clone the repo
git clone --depth 1 https://github.com/ForgeyClap/claude-forge

Made for: Claude Code, Codex.

Or install forge, the plugin that ships this one along with the rest of its 11 skills.

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 gsap-scrolltrigger

README.md
[![agentmods](https://agentmods.dev/badge/skills/forgeyclap/claude-forge/gsap-scrolltrigger.svg)](https://agentmods.dev/skills/forgeyclap/claude-forge/gsap-scrolltrigger)
Your own site
<a href="https://agentmods.dev/skills/forgeyclap/claude-forge/gsap-scrolltrigger"><img src="https://agentmods.dev/badge/skills/forgeyclap/claude-forge/gsap-scrolltrigger.svg" alt="Measured on agentmods" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,995 The whole file, excluding the scripts and references it only reads on demand.
Security scan E 3 findings. Scan, not verified.
Origin 86% copy Near-identical to another mod 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 $0.00068 $0.04995
Opus 5 $0.00034 $0.02498
Sonnet 5 $0.00014 $0.00999
Haiku 4.5 $0.00007 $0.00500

Measured yesterday against content hash e12fc244bc29, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade E, and why

gsap-scrolltrigger scanned grade E with 3 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 yesterday.

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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- Source: https://github.com/greensock/gsap-skills Pinned commit: aed9cfd3277740755f6bfc1155c7aa645403b760 (2026-04-21T23:47:02Z) License: MIT (c) 2026 GreenSock Adaptation: vendored (not npx skills add) -- pinned mar

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

to non-docs endpoints, no credential/secret/token exfil, no rm -rf) found in any of the 8 SKILL.md files

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

no injection/exec/exfiltration patterns (no "ignore previous", no curl|bash, no exec(/subprocess/fetch(
Origin

This is a copy

86% identical to gsap-scrolltrigger — 25 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/forge/skills/gsap/gsap-scrolltrigger/SKILL.md · 322 lines

How it starts

The opening of the file, as written. The whole thing — 322 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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. yesterday First seen · 322 lines · 68 tokens per session scan E e12fc244bc29

Subscribe to this mod's changes

gsap-scrolltrigger is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 1mo ago), licensed MIT. It adds 68 tokens to every session and 4,995 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it E with 3 findings (hidden instructions, recursive force delete, makes network calls). It is 86% identical to gsap-scrolltrigger, differing in 25 lines, and is treated as a copy.