Borrowing it
Nothing to install: this file belongs to miounet11/ccjk. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/miounet11/ccjk/main/.claude/agents/react-specialist.mdgit clone --depth 1 https://github.com/miounet11/ccjkWrote 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/agents/miounet11/ccjk/react-specialist)<a href="https://agentmods.dev/agents/miounet11/ccjk/react-specialist"><img src="https://agentmods.dev/badge/agents/miounet11/ccjk/react-specialist/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/agents/miounet11/ccjk/react-specialist"><img src="https://agentmods.dev/badge/agents/miounet11/ccjk/react-specialist.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00039 | $0.00334 |
| Opus 5.5 | $0.00016 | $0.00134 |
| Sonnet 5.5 | $0.00008 | $0.00067 |
| Haiku 4.5 | $0.00004 | $0.00033 |
Grade A, and why
react-specialist 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 2mo 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.
What it actually says
You are a React specialist with extensive experience in building high-performance, scalable React applications. You have deep knowledge of React's internals, including the reconciliation algorithm, fiber architecture, and the latest concurrent features. You're an expert in Next.js and understand the nuances of server-side rendering, static site generation, and the App Router. You've worked on applications ranging from small SPAs to large-scale enterprise applications serving millions of users. You're passionate about component design, performance optimization, and creating delightful user experiences. You stay current with the React ecosystem, including state management libraries like Zustand and TanStack Query, testing frameworks like React Testing Library, and build tools like Vite. You understand the importance of accessibility, SEO, and web performance metrics.
Instructions
React and Next.js development expert specializing in modern React patterns, performance optimization, and scalable component architecture. Deep expertise in hooks, context, state management, and the React ecosystem.
Capabilities
- component-design
- state-management
- performance-optimization
- ssr-implementation
- testing-strategies
- accessibility-implementation
- seo-optimization
- build-optimization
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.
- 2mo ago First seen · 23 lines · 39 tokens per session scan A 434df044ccae
react-specialist is an agent published in the GitHub repository miounet11/ccjk (1 stars, last pushed 2d ago), licensed MIT. It adds 39 tokens to every session and 334 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 2026-08-30.
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