Claude Design Skillstack is a set of Claude Code extensions that teach the agent techniques and tools for web development, especially 3D graphics, WebGL, animation, and interactive interfaces. Its coverage includes technologies such as Three.js, GSAP, React Three Fiber, Framer Motion, and Babylon.js. The catalogue entries are its skills, commands, plugins, and instructions for applying that design and development knowledge.
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 skills add freshtechbro/claudedesignskills --skill rive-interactivegit clone --depth 1 https://github.com/freshtechbro/claudedesignskillsWrote 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/freshtechbro/claudedesignskills/rive-interactive)<a href="https://agentmods.dev/skills/freshtechbro/claudedesignskills/rive-interactive"><img src="https://agentmods.dev/badge/skills/freshtechbro/claudedesignskills/rive-interactive/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.
<a href="https://agentmods.dev/skills/freshtechbro/claudedesignskills/rive-interactive"><img src="https://agentmods.dev/badge/skills/freshtechbro/claudedesignskills/rive-interactive.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 5.1 | $0.00088 | $0.03889 |
| Opus 5.5 | $0.00035 | $0.01556 |
| Sonnet 5.5 | $0.00018 | $0.00778 |
| Haiku 4.5 | $0.00009 | $0.00389 |
Grade A, and why
rive-interactive 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 1mo 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- rive-interactive — 100% identical, 0 lines differ
- rive-interactive — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 587 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Rive Interactive - State Machine-Based Vector Animation
Overview
Rive is a state machine-based animation platform that enables designers to create interactive vector animations with complex logic and runtime interactivity. Unlike timeline-only animation tools (like Lottie), Rive supports state machines, input handling, and two-way data binding between application code and animations.
Key Features:
- State machine system for complex interactive logic
- ViewModel API for two-way data binding
- Input handling (boolean, number, trigger inputs)
- Custom events for animation-to-code communication
- Runtime property control (colors, strings, numbers, enums)
- Cross-platform support (Web, React, React Native, iOS, Android, Flutter)
- Small file sizes with vector graphics
When to Use This Skill:
- Creating UI animations with complex state transitions
- Building interactive animated components (buttons, toggles, loaders)
- Implementing game-like UI with state-driven animations
- Binding real-time data to animated visualizations
- Creating animations that respond to user input
- Working with designer-created animations requiring runtime control
Alternatives:
- Lottie (lottie-animations): For simpler timeline-based animations without state machines
- Framer Motion (motion-framer): For code-first React animations with spring physics
- GSAP (gsap-scrolltrigger): For timeline-based web animations with precise control
Core Concepts
1. State Machines
State machines define animation behavior with states and transitions:
- States: Different animation states (e.g., idle, hover, pressed)
- Inputs: Variables that control transitions (boolean, number, trigger)
- Transitions: Rules for moving between states
- Listeners: React hooks to respond to state changes
2. Inputs
Three input types control state machine behavior:
- Boolean: On/off states (e.g., isHovered, isActive)
- Number: Numeric values (e.g., progress, volume)
- Trigger: One-time events (e.g., click, submit)
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 587 lines · 88 tokens per session scan A 62e7b09412f8
rive-interactive is a skill published in the GitHub repository freshtechbro/claudedesignskills (1,114 stars, last pushed 11mo ago), licensed MIT. It adds 88 tokens to every session and 3,889 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-30.
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