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By rnavarych
Act as a senior frontend developer to build responsive UI components, implement state management with Zustand/Redux/Pinia, optimize performance via Core Web Vitals and bundle analysis, audit WCAG accessibility, architect CSS with Tailwind/BEM, configure Vite/Webpack builds, and debug frameworks like React, Vue, Angular, Next.js across monorepos.
npx claudepluginhub rnavarych/alpha-engineer --plugin role-frontendAccessibility expertise including WCAG 2.1 AA/AAA compliance, ARIA roles and attributes, keyboard navigation, screen reader optimization, color contrast requirements, focus management, semantic HTML, and live regions.
Angular expertise including modules vs standalone components, dependency injection, RxJS patterns, signals, Angular Material, change detection strategies (OnPush), lazy loading routes, and NgRx state management.
Build tooling expertise including Vite, webpack 5, esbuild, SWC, Turbopack, module federation, monorepo tooling (Nx, Turborepo), ESLint/Prettier configuration, and TypeScript configuration.
CSS architecture expertise including BEM methodology, CSS Modules, Tailwind CSS, CSS-in-JS (styled-components, Emotion), design tokens, responsive design patterns, CSS Grid/Flexbox layouts, and container queries.
Frontend performance expertise including Core Web Vitals (LCP, INP, CLS), code splitting, tree shaking, image optimization (WebP, AVIF, lazy loading), font loading strategies, service workers, and bundle analysis with webpack-bundle-analyzer.
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Use this agent when building user interfaces, implementing React/Vue/Angular components, handling state management, or optimizing frontend performance. This agent excels at creating responsive, accessible, and performant web applications. Examples:\n\n<example>\nContext: Building a new user interface\nuser: "Create a dashboard for displaying user analytics"\nassistant: "I'll build an analytics dashboard with interactive charts. Let me use the frontend-developer agent to create a responsive, data-rich interface."\n<commentary>\nComplex UI components require frontend expertise for proper implementation and performance.\n</commentary>\n</example>\n\n<example>\nContext: Fixing UI/UX issues\nuser: "The mobile navigation is broken on small screens"\nassistant: "I'll fix the responsive navigation issues. Let me use the frontend-developer agent to ensure it works perfectly across all device sizes."\n<commentary>\nResponsive design issues require deep understanding of CSS and mobile-first development.\n</commentary>\n</example>\n\n<example>\nContext: Optimizing frontend performance\nuser: "Our app feels sluggish when loading large datasets"\nassistant: "Performance optimization is crucial for user experience. I'll use the frontend-developer agent to implement virtualization and optimize rendering."\n<commentary>\nFrontend performance requires expertise in React rendering, memoization, and data handling.\n</commentary>\n</example>
Use this agent when building user interfaces, implementing React/Vue/Angular components, handling state management, or optimizing frontend performance. This agent excels at creating responsive, accessible, and performant web applications. Examples:\n\n<example>\nContext: Building a new user interface\nuser: "Create a dashboard for displaying user analytics"\nassistant: "I'll build an analytics dashboard with interactive charts. Let me use the frontend-developer agent to create a responsive, data-rich interface."\n<commentary>\nComplex UI components require frontend expertise for proper implementation and performance.\n</commentary>\n</example>\n\n<example>\nContext: Fixing UI/UX issues\nuser: "The mobile navigation is broken on small screens"\nassistant: "I'll fix the responsive navigation issues. Let me use the frontend-developer agent to ensure it works perfectly across all device sizes."\n<commentary>\nResponsive design issues require deep understanding of CSS and mobile-first development.\n</commentary>\n</example>\n\n<example>\nContext: Optimizing frontend performance\nuser: "Our app feels sluggish when loading large datasets"\nassistant: "Performance optimization is crucial for user experience. I'll use the frontend-developer agent to implement virtualization and optimize rendering."\n<commentary>\nFrontend performance requires expertise in React rendering, memoization, and data handling.\n</commentary>\n</example>
Modern React and UI development expertise. Master React 19, Next.js 15, component architecture, state management, performance optimization, and design systems.
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
Automatic closed-loop frontend development with visual testing, browser automation, and iterative refinement using multimodal AI
Your AI development team. 36 agents and 32 skills for building, reviewing, debugging, and shipping production code. Supports Vue, React, Next.js, SvelteKit, Angular, Astro, and Nuxt.
E-Commerce domain specialization with payment gateway integration, product catalog design, cart/checkout flows, inventory management, order processing, search/merchandising, PCI DSS compliance, and analytics.
Senior Fullstack Engineer persona combining frontend and backend expertise for end-to-end development: scaffolding, API-frontend integration, auth flows, real-time features, and deployment workflows.
Fintech domain specialization with financial data modeling, transaction processing, double-entry ledger design, regulatory compliance (SOX, PSD2, KYC/AML), fraud detection, trading systems, banking APIs, and financial-grade security.
Senior AQA Engineer persona with test strategy, E2E automation (Playwright, Cypress), API testing, performance testing (k6, JMeter), security testing, mobile testing, and CI integration expertise.
IoT domain specialization with MQTT messaging, device management, edge computing, IoT-specific security, time-series databases, protocol advisory, cloud platform integration, and digital twin patterns.
claude plugin marketplace add rnavarych/alpha-engineer
24 agents. 191 skills. 22 commands. Specialized engineering plugins for Claude Code across 9 developer roles, 4 industry domains, and one unhinged team of 5 senior engineers.
5 senior engineers trapped in one plugin. They deliver excellent technical decisions. Multiplied personality disorder as a development methodology.
claude plugin install billy-milligan@alpha-engineer
/billy <on|off|status> — Toggle ProtocolControl the Billy Milligan experience.
/billy off → Professional mode (for client demos)
/billy on → Bring the idiots back
/billy status → Show current state
22 commands | 52 technical skills | 5 agents with persistent memory
| Agent | Role | Style |
|---|---|---|
| Viktor | Senior Architect | Draws boxes, quotes Fowler, never writes code |
| Max | Senior Tech Lead | Ships it, asks questions later |
| Dennis | Senior Fullstack Dev | Grumpy, writes the actual code |
| Sasha | Senior AQA Engineer | Paranoid, everything will break |
| Lena | Senior Business Analyst | Sharpest person in the room |
Read the full Billy Milligan documentation — commands, memory system, team dynamics, relationship map, and running jokes.
| Category | Plugins | Agents | Skills | Commands |
|---|---|---|---|---|
| Foundation | 1 (alpha-core) | 2 | 11 | -- |
| Roles | 9 | 9 | 96 | -- |
| Domains | 4 | 8 | 32 | -- |
| Billy Milligan | 1 | 5 | 52 | 22 |
| Total | 15 | 24 | 191 | 22 |
claude plugin marketplace add rnavarych/alpha-engineer
claude plugin install alpha-core@alpha-engineer
claude plugin install role-backend@alpha-engineer
claude plugin install domain-fintech@alpha-engineer
claude plugin install billy-milligan@alpha-engineer
# Backend developer working on fintech
claude plugin install alpha-core@alpha-engineer
claude plugin install role-backend@alpha-engineer
claude plugin install domain-fintech@alpha-engineer
# Frontend developer working on e-commerce
claude plugin install alpha-core@alpha-engineer
claude plugin install role-frontend@alpha-engineer
claude plugin install domain-ecommerce@alpha-engineer
# DevOps engineer for IoT platform
claude plugin install alpha-core@alpha-engineer
claude plugin install role-devops@alpha-engineer
claude plugin install domain-iot@alpha-engineer
# Any role + Billy Milligan (adds team dynamics to any setup)
claude plugin install billy-milligan@alpha-engineer
/alpha-core:database-advisor
/role-backend:microservices
/domain-fintech:ledger-design
/billy:plan add user authentication
/billy:debate Redis vs PostgreSQL for caching
/billy:review src/components/Auth.tsx
/billy:roast should we use GraphQL?
/billy:adr-new "Database Choice"
/billy:invite "security expert"
/billy:lang ru