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 jnPiyush/AgentX --skill reactgit clone --depth 1 https://github.com/jnPiyush/AgentXWrote 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/jnpiyush/agentx/react)<a href="https://agentmods.dev/skills/jnpiyush/agentx/react"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/react/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/jnpiyush/agentx/react"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/react.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 | $0.00041 | $0.01815 |
| Opus 5.5 | $0.00016 | $0.00726 |
| Sonnet 5.5 | $0.00008 | $0.00363 |
| Haiku 4.5 | $0.00004 | $0.00181 |
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 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.
How it starts
The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Framework Development
Purpose: Production-ready React development for building modern, performant web applications. Audience: Frontend engineers building React applications with TypeScript and modern tooling. Standard: Follows github/awesome-copilot React patterns.
When to Use This Skill
- Creating React components with TypeScript
- Implementing custom hooks
- Optimizing React rendering performance
- Managing application state
- Testing React components with Testing Library
Decision Tree
React Decision
+-- Starting a new project?
| +-- Full-stack / SSR? -> Next.js (App Router)
| +-- SPA / client only? -> Vite + React
| +-- Static site? -> Astro or Next.js static export
+-- State management?
| +-- Local component state? -> useState / useReducer
| +-- Shared across siblings? -> Lift state up or Context API
| +-- Complex global state? -> Zustand or Redux Toolkit
| +-- Server state / caching? -> TanStack Query (React Query)
+-- Styling approach?
| +-- Utility-first? -> Tailwind CSS
| +-- Component library? -> shadcn/ui or Radix
| +-- CSS-in-JS? -> styled-components or vanilla-extract
+-- Form handling?
| +-- Simple forms? -> Controlled components
| +-- Complex validation? -> React Hook Form + Zod
Prerequisites
- Node.js 24+ and npm/yarn/pnpm
- TypeScript fundamentals
- React 18+ with hooks API
Quick Reference
| Need | Solution | Pattern |
|---|---|---|
| Component | Functional with TypeScript | export function MyComponent({ prop }: Props) {} |
| State | useState hook | const [count, setCount] = useState(0) |
| Effects | useEffect hook | useEffect(() => {}, [deps]) |
| Custom hook | Extract reusable logic | function useUser() {} |
| Form handling | Controlled components | <input value={value} onChange={handleChange} /> |
| Performance | React.memo, useMemo | const MemoComponent = React.memo(Component) |
What ships with it
2 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 Changed 69b6df50a9ef
- 1mo ago First seen · 225 lines · 41 tokens per session scan A 24c5bf2565bf
react is a skill published in the GitHub repository jnPiyush/AgentX (16 stars, last pushed 3d ago), licensed Apache-2.0. It adds 41 tokens to every session and 1,815 once invoked, about $0.0002 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 2026-09-03.
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