Apply when writing or reviewing code that uses gsap.utils for math, array/collection handling, unit parsing, or value mapping in animations (e.g. mapping scroll to a value, randomizing, snapping to a grid, or normalizing inputs).
Confirm successful installation by checking the skill directory location:
.cursor/skills/gsap-utils
Restart Cursor to activate gsap-utils. Access via /gsap-utils in your agent's command palette.
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Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Apply when writing or reviewing code that uses gsap.utils for math, array/collection handling, unit parsing, or value mapping in animations (e.g. mapping scroll to a value, randomizing, snapping to a grid, or normalizing inputs).
Related skills: Use with gsap-core, gsap-timeline, and gsap-scrolltrigger when building animations; CustomEase and other easing utilities are in gsap-plugins.
Overview
gsap.utils provides pure helpers; no need to register. Use in tween vars (e.g. function-based values), in ScrollTrigger or Observer callbacks, or in any JS that drives GSAP. All are on gsap.utils (e.g. gsap.utils.clamp()).
Omitting the value: function form. Many utils accept the value to transform as the last argument. If you omit that argument, the util returns a function that accepts the value later. Use the function form when you need to clamp, map, normalize, or snap many values with the same config (e.g. in a mousemove handler or tween callback). Exception: random() β pass true as the last argument to get a reusable function (do not omit the value); see random().
// With value: returns the resultgsap.utils.clamp(0,100,150);// 100// Without value: returns a function you call with the value laterlet c = gsap.utils.clamp(0,100);c(150);// 100c(-10);// 0
Clamping and Ranges
clamp(min, max, value?)
Constrains a value between min and max. Omit value to get a function: clamp(min, max)(value).
Maps a value from one range to another. Use when converting scroll position, progress (0β1), or input range to an animation range. Omit value to get a function: mapRange(inMin, inMax, outMin, outMax)(value).
gsap.utils.mapRange(0,100,0,500,50);// 250gsap.utils.mapRange(0,1,0,360,0.5);// 180 (progress to degrees)let mapFn = gsap.utils.mapRange(0,100,0,500);mapFn(50);// 250
normalize(min, max, value?)
Returns a value normalized to 0β1 for the given range. Inverse of mapping when the target range is 0β1. Omit value to get a function: normalize(min, max)(value).
Interpolates between two values at a given progress (0β1). Handles numbers, colors, and objects with matching keys. Omit progress to get a function: interpolate(start, end)(progress).
Returns a random number in the range minimumβmaximum, or a random element from an array. Optional snapIncrement snaps the result to the nearest multiple (e.g. 5 β multiples of 5). To get a reusable function, pass true as the last argument (returnFunction); the returned function takes no args and returns a new random value each time. This is the only util that uses true for the function form instead of omitting the value.
// immediate value: number in rangegsap.utils.random(-100,100);// e.g. 42.7gsap.utils.random(0,500,5);// 0β500, snapped to nearest 5// reusable function: pass true as last argumentlet randomFn = gsap.utils.random(-200,500,10,true);randomFn();// random value in range, snapped to 10randomFn();// another random value// array: pick one value at randomgsap.utils.random(["red","blue","green"]);// "red", "blue", or "green"let randomFromArray = gsap.utils.random([0,100,200],true);randomFromArray();// 0, 100, or 200
String form in tween vars: use "random(-100, 100)", "random(-100, 100, 5)", or "random([0, 100, 200])"; GSAP evaluates it per target.
Snaps a value to the nearest multiple of snapTo, or to the nearest value in an array of allowed values. Omit value to get a function: snap(snapTo)(value) (or snap(snapArray)(value)).
gsap.utils.snap(10,23);// 20gsap.utils.snap(0.25,0.7);// 0.75gsap.utils.snap([0,100,200],150);// 100 or 200 (nearest in array)
β
Make data-driven prioritization decisions faster
Stakeholder Communication
Draft PRDs, status updates, and stakeholder presentations
βΊAccess to product documentation and roadmap tools (Jira, Notion, etc.)
βΊUnderstanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
βΊStakeholder contact information and communication channels
Time Estimate
30-60 minutes to see productivity improvements
Steps
1Install product management skill
2Start with user story generation for known feature
3Progress to competitive analysis: research 2-3 competitors
4Use for roadmap prioritization: apply RICE/ICE scoring
5Draft stakeholder communications and refine based on feedback
6Build template library for recurring PM tasks
7Share effective prompts with product team
Common Pitfalls
β Not validating competitive researchβverify facts before sharing
β Accepting user stories without involving engineering team
β Over-relying on frameworks without qualitative judgment
β Not customizing outputs to company culture and communication style
β Skipping stakeholder validation of generated requirements
Best Practices
β Do
+Validate research and competitive analysis with real data
+Collaborate with engineering when generating technical requirements
+Customize frameworks and templates to your company context
+Use skill for first drafts, refine with stakeholder input
+Document successful prompt patterns for PM tasks
+Combine AI efficiency with human judgment and intuition
β Don't
βDon't publish competitive analysis without fact-checking
βDon't finalize user stories without engineering review
βDon't make prioritization decisions solely on AI scoring
βDon't skip customer validation of generated requirements
βDon't ignore company-specific context and culture
π‘ Pro Tips
β Provide context: company goals, constraints, customer feedback
β Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
β Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
β Use skill for 70% generation + 30% customization to company needs
When to Use This
β Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
β Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
Learning Path
1Basic: user stories, feature specs, status updates