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.
npx agentmods add skills/hoangatg/ai-agent-toolkit/scroll-experiencenpx skills add hoangatg/ai-agent-toolkit --skill scroll-experiencegit clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWrote 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.
[](https://agentmods.dev/skills/hoangatg/ai-agent-toolkit/scroll-experience)<a href="https://agentmods.dev/skills/hoangatg/ai-agent-toolkit/scroll-experience"><img src="https://agentmods.dev/badge/skills/hoangatg/ai-agent-toolkit/scroll-experience.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00034 | $0.00822 |
| Opus 5 | $0.00017 | $0.00411 |
| Sonnet 5 | $0.00007 | $0.00164 |
| Haiku 4.5 | $0.00003 | $0.00082 |
Grade A, and why
scroll-experience 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Scroll Experience
Make scrolling an adventure, not a chore.
1. Technology Selection
| Technology | Best For |
|---|---|
| CSS Scroll-Driven Animations | Native, performant, simple effects |
| GSAP ScrollTrigger | Complex timelines, production-grade |
| Framer Motion | React ecosystem, declarative |
| Lenis | Custom smooth scrolling |
| Intersection Observer | Trigger-based, lightweight |
2. Scroll Animation Patterns
| Pattern | Description | Complexity |
|---|---|---|
| Reveal on scroll | Elements appear as you scroll | Low |
| Parallax | Layers move at different speeds | Low-Medium |
| Pin + scrub | Element sticks while animating | Medium |
| Horizontal scroll | Horizontal movement via vertical scroll | Medium |
| Scroll-linked video | Video progress tied to scroll | High |
| 3D scene scroll | Camera/scene changes with scroll | High |
3. GSAP ScrollTrigger
Core Concepts
| Concept | Purpose |
|---|---|
| trigger | Element that starts the animation |
| start/end | When animation begins/ends |
| scrub | Link animation progress to scroll |
| pin | Fix element during scroll range |
| snap | Snap to discrete positions |
Performance Settings
| Setting | Use |
|---|---|
scrub: true |
Smooth, exact scroll tracking |
scrub: 0.5 |
Slight lag for smoothness |
anticipatePin: 1 |
Prevent jank when pinning |
invalidateOnRefresh |
Recalculate on resize |
4. CSS Scroll-Driven Animations
Key Properties
| Property | Purpose |
|---|---|
animation-timeline: scroll() |
Bind to scroll progress |
animation-timeline: view() |
Bind to element visibility |
animation-range |
Define start/end points |
view-timeline |
Named element timelines |
5. Performance Principles
| Principle | Application |
|---|---|
| Animate transforms only | transform and opacity are GPU-accelerated |
| Will-change | Hint browser about animated properties |
| Reduce repaints | No layout-triggering properties (width, height) |
| Debounce scroll | Don't fire on every pixel |
| Lazy load | Load content as needed |
| Prefers-reduced-motion | Respect accessibility settings |
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.
- yesterday First seen · 119 lines · 34 tokens per session scan A d5c1c362f75a
scroll-experience is a skill published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 5mo ago), licensed MIT. It adds 34 tokens to every session and 822 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 2026-09-03.
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