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 tao12345666333/ankaloop --skill react-developergit clone --depth 1 https://github.com/tao12345666333/ankaloopWrote 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/tao12345666333/ankaloop/react-developer)<a href="https://agentmods.dev/skills/tao12345666333/ankaloop/react-developer"><img src="https://agentmods.dev/badge/skills/tao12345666333/ankaloop/react-developer/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/tao12345666333/ankaloop/react-developer"><img src="https://agentmods.dev/badge/skills/tao12345666333/ankaloop/react-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector 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 | $0.00019 | $0.01093 |
| Opus 5.5 | $0.00008 | $0.00437 |
| Sonnet 5.5 | $0.00004 | $0.00219 |
| Haiku 4.5 | $0.00002 | $0.00109 |
Grade A, and why
react-developer scanned grade A with 1 finding 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
const response = await fetch(url); How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Developer Skill
Core React Concepts
Components and JSX
- Functional components with hooks
- Class components (legacy support)
- JSX syntax and best practices
- Props and prop validation with PropTypes/TypeScript
React Hooks Mastery
- useState: State management in functional components
- useEffect: Side effects and lifecycle management
- useContext: Context API for state sharing
- useReducer: Complex state management
- useMemo: Performance optimization with memoization
- useCallback: Function memoization
- useRef: DOM access and persistent values
- Custom Hooks: Reusable stateful logic
State Management Patterns
- Local State: useState, useReducer
- Context API: useContext for global state
- Redux: State management with Redux Toolkit
- Zustand: Lightweight state management
- Recoil: Facebook's state management library
- SWR/React Query: Server state management
Performance Optimization
- React.memo for component memoization
- useMemo and useCallback for expensive computations
- Code splitting with React.lazy and Suspense
- Virtual scrolling for large lists
- Bundle size optimization
Modern React Patterns
- Compound Components: Flexible component composition
- Render Props: Sharing component logic
- Higher-Order Components (HOCs): Component enhancement
- Custom Hooks Pattern: Reusable stateful logic
- State Reducer Pattern: Complex state updates
- Control Props Pattern: External component control
Styling Solutions
- CSS Modules: Scoped CSS
- Styled Components: CSS-in-JS
- Emotion: High-performance CSS-in-JS
- Tailwind CSS: Utility-first CSS
- CSS-in-JS best practices
Testing Strategies
- Jest: Testing framework
- React Testing Library: Component testing
- Enzyme: Component testing (legacy)
- Cypress: End-to-end testing
- Storybook: Component development and testing
React Ecosystem Tools
- Create React App: Quick start setup
- Vite: Fast build tool
- Next.js: Full-stack React framework
- Gatsby: Static site generator
- Remix: Full-stack web framework
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 · 157 lines · 19 tokens per session scan A 1847afa52f86
react-developer is a skill published in the GitHub repository tao12345666333/ankaloop (52 stars, last pushed yesterday), licensed Apache-2.0. It adds 19 tokens to every session and 1,093 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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