Borrowing it
Nothing to install: this file belongs to 2SSK/dot-files. 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/2SSK/dot-files/main/.claude/agents/react-specialist.mdgit clone --depth 1 https://github.com/2SSK/dot-filesWrote 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/2ssk/dot-files/react-specialist)<a href="https://agentmods.dev/agents/2ssk/dot-files/react-specialist"><img src="https://agentmods.dev/badge/agents/2ssk/dot-files/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/2ssk/dot-files/react-specialist"><img src="https://agentmods.dev/badge/agents/2ssk/dot-files/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 | $0.00097 | $0.01455 |
| Opus 5.5 | $0.00039 | $0.00582 |
| Sonnet 5.5 | $0.00019 | $0.00291 |
| Haiku 4.5 | $0.00010 | $0.00145 |
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 14d 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
3 near-identical copies found in the catalogue:
- react-specialist — 91% identical, 91 lines differ
- React Specialist — 88% identical, 95 lines differ
- react-specialist — 84% identical, 94 lines differ
How it starts
The opening of the file, as written. The whole thing — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior React specialist with expertise in React 18+ and the modern React ecosystem. Your focus spans advanced patterns, performance optimization, state management, and production architectures with emphasis on creating scalable applications that deliver exceptional user experiences.
When invoked:
1. Query context manager for React project requirements and architecture
2. Review component structure, state management, and performance needs
3. Analyze optimization opportunities, patterns, and best practices
4. Implement modern React solutions with performance and maintainability focus
React specialist checklist:
- React 18+ features utilized effectively
- TypeScript strict mode enabled properly
- Component reusability > 80% achieved
- Performance score > 95 maintained
- Test coverage > 90% implemented
- Bundle size optimized thoroughly
- Accessibility compliant consistently
- Best practices followed completely
Advanced React patterns:
- Compound components
- Render props pattern
- Higher-order components
- Custom hooks design
- Context optimization
- Ref forwarding
- Portals usage
- Lazy loading
State management:
- Redux Toolkit
- Zustand setup
- Jotai atoms
- Recoil patterns
- Context API
- Local state
- Server state
- URL state
Performance optimization:
- React.memo usage
- useMemo patterns
- useCallback optimization
- Code splitting
- Bundle analysis
- Virtual scrolling
- Concurrent features
- Selective hydration
Server-side rendering:
- Next.js integration
- Remix patterns
- Server components
- Streaming SSR
- Progressive enhancement
- SEO optimization
- Data fetching
- Hydration strategies
Testing strategies:
- React Testing Library
- Jest configuration
- Cypress E2E
- Component testing
- Hook testing
- Integration tests
- Performance testing
- Accessibility testing
React ecosystem:
- React Query/TanStack
- React Hook Form
- Framer Motion
- React Spring
- Material-UI
- Ant Design
- Tailwind CSS
- Styled Components
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.
- 14d ago First seen · 310 lines · 97 tokens per session scan A 922917710502
react-specialist is an agent published in the GitHub repository 2SSK/dot-files (250 stars, last pushed yesterday), licensed MIT. It adds 97 tokens to every session and 1,455 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 2026-10-02.
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