GSAP Timeline

Sequence motion with timelines, labels and relative positions, with shared playback and reverse controls.

Motion & interactiongreensock/gsap-skillsMITSources checked: 2026-10-21

See installation steps View original Skill

Features

Coordinate overlaps, pauses and nested timelines with position parameters and labels.
Use one playback controller for opening, closing and reversing midway.

When to use it

Useful for step-by-step reveals, expanding navigation and coordinated state changes.

Before you start

Requires a working frontend project and GSAP. Installing this Skill does not add animation dependencies to your app; the GSAP runtime and plugins have their own license.

Usage example

Follow this illustrative workflow, replacing file names and goals with your own project details.

Choreograph an opening navigation menu

What to prepare: A navigation component, toggle button and keyboard focus behavior.
Workflow: Place the backdrop, links and toggle in one timeline, reverse to close and check repeated clicks.
Expected deliverables: An interruptible, reversible menu animation with focus and rapid-click checks.

Recommended prompts

Replace the bracketed placeholders, then paste into an AI tool with this skill installed. Prompts follow the interface language; copying preserves the full text and line breaks.

Use the gsap-timeline Skill for the navigation menu in [project path]. Read the existing components and interaction constraints, then make the smallest necessary changes while preserving content and keyboard behavior. Check duplicate timelines, mid-animation reversal and keyboard focus and provide a usable reduced-motion fallback. Report only checks actually run; do not claim unmeasured performance improvements.

Review the navigation menu just implemented, focusing on duplicate timelines, mid-animation reversal and keyboard focus. Confirm that content remains readable and usable without motion, repeated navigation does not accumulate animations or listeners, and list fixes plus environments not yet verified.

Supported AI tools

Claude CodeTerminal in your project folder
CodexTerminal in your project folder
CursorTerminal in your project folder
Gemini CLITerminal in your project folder
OpenCodeTerminal in your project folder

These tools appear in the Skills CLI support list. Task results depend on the model, project and required runtime.

Installation

Requires Node.js 22.20 or later. The command selects this skill; follow the installer to confirm its location in the project.

Choose an AI tool

Run in: Terminal in your project folder

Install into the selected tool with Skills CLI. The original project also documents other installation methods.

npx skills add greensock/gsap-skills --skill gsap-timeline -a claude-code

Restart the tool or open a new session, then mention this skill when describing your task.

Check the official setup guide

Source and license

This guide summarizes the original skill definition, README and setup documentation. Models, accounts and external services are provided by their respective tools.

SKILL.md README License terms

The MIT license for GSAP Skills is separate from the GSAP runtime license. Review the GSAP Standard License before using its runtime or plugins. GSAP runtime license