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 dylantarre/design-system-skills --skill reactgit clone --depth 1 https://github.com/dylantarre/design-system-skillsWrote 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/dylantarre/design-system-skills/react)<a href="https://agentmods.dev/skills/dylantarre/design-system-skills/react"><img src="https://agentmods.dev/badge/skills/dylantarre/design-system-skills/react.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 5.1 | $0.00040 | $0.04952 |
| Opus 5 | $0.00020 | $0.02476 |
| Sonnet 5 | $0.00008 | $0.00990 |
| Haiku 4.5 | $0.00004 | $0.00495 |
Grade A, and why
react 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 839 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Component Patterns
Overview
Build accessible, token-driven React components following modern patterns. Covers styling approaches, TypeScript integration, composition patterns, and how to consume design tokens from the token skills.
When to Use
- Creating a React component library
- Building components that use design tokens
- Setting up a design system in React/Next.js
- Converting designs to React components
The Process
- Identify component type: Primitive, composite, or layout?
- Choose styling approach: CSS Modules, Tailwind, styled-components, or CSS-in-JS?
- Define props interface: TypeScript types with sensible defaults
- Implement with tokens: Use CSS custom properties or theme context
- Add accessibility: ARIA, keyboard handling, focus management
- Export properly: Named exports, types, and variants
Styling Approaches
| Approach | When to Use | Token Integration |
|---|---|---|
| CSS Modules | Build-time CSS, SSR-friendly | Import CSS with var(--token) |
| Tailwind | Utility-first, rapid development | Extend config with tokens |
| styled-components | Runtime theming, dynamic styles | ThemeProvider with tokens |
| Vanilla Extract | Type-safe, zero-runtime | Import tokens as TS objects |
| CSS Custom Properties | Framework-agnostic, simple | Direct var(--token) usage |
Project Structure
src/
├── components/
│ ├── primitives/ # Base components
│ │ ├── Button/
│ │ │ ├── Button.tsx
│ │ │ ├── Button.module.css
│ │ │ ├── Button.test.tsx
│ │ │ └── index.ts
│ │ ├── Input/
│ │ └── Text/
│ ├── composite/ # Composed components
│ │ ├── Card/
│ │ ├── Modal/
│ │ └── Dropdown/
│ └── layout/ # Layout components
│ ├── Stack/
│ ├── Grid/
│ └── Container/
├── tokens/
│ ├── colors.css
│ ├── spacing.css
│ └── index.css
├── hooks/
│ └── useTheme.ts
└── index.ts # Public exports
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.
- 8d ago First seen · 839 lines · 40 tokens per session scan A b60cb0bba478
react is a skill published in the GitHub repository dylantarre/design-system-skills (40 stars, last pushed 8mo ago), licensed MIT. It adds 40 tokens to every session and 4,952 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 2026-08-30.
Other skills, from other repositories
react-patterns
React 18/19 patterns including hooks discipline, server/client component boundaries, Suspense + error boundaries, form actions, data fetching, state management decision trees, and accessibility-first composition. Use when writing or reviewing React components.
chakra-ui-builder
Build responsive, accessible UI components and layouts using Chakra UI v3, install or configure Chakra UI in new and existing projects, and design scalable themes using tokens, semantic tokens, recipes, and slot recipes. Use this skill whenever a user asks to build, create, or generate any UI component, page, form…
material-ui-tailwind
Integrates Material UI with Tailwind CSS v4 using cascade layers (enableCssLayer, @layer order) and documents Tailwind v3 interoperability (preflight, important, injectFirst, portals). Use when combining MUI with Tailwind utilities, slotProps className, or theme token bridges.
r3f-best-practices
React Three Fiber (R3F) and Poimandres ecosystem best practices. Use when writing, reviewing, or optimizing R3F code. Triggers on tasks involving @react-three/fiber, @react-three/drei, zustand, @react-three/postprocessing, @react-three/rapier, or leva.
create-site
Creates a new Power Pages code site (SPA) using React, Angular, Vue, or Astro. Guides through the full process from initial concept to deployed site: requirements discovery, scaffolding, component planning, design, implementation, validation, and deployment. Use when the user wants to create, build, or scaffold a new…
fast-typescript-check
Keep www-sacred's TypeScript fast to type-check and fast to run. Use when touching the ASCII/canvas animation components (the only real per-frame code here), tightening type-check wall-clock, or auditing a change for runtime or compiler regressions. Scoped to this repo — a React 19 / Next.js 16 component library plus…