By rnavarych
Act as senior fullstack engineer to scaffold production apps in Next.js/Remix/SvelteKit, integrate type-safe APIs, implement auth flows with Supabase/OAuth, add real-time WebSockets/chat, full-text search, secure file uploads, monorepo management, and deploy to Vercel/Netlify with CI.
Integrate APIs with frontend applications using type-safe patterns: tRPC for end-to-end type safety, REST client generation (openapi-typescript, orval), TanStack Query / SWR for data fetching, optimistic updates, and error handling.
Implement complete authentication flows: login, signup, forgot-password pages, JWT + refresh tokens, session-based auth, social login (Google, GitHub, Apple), MFA/2FA, protected routes via middleware, and role-based UI rendering.
Set up deployment workflows for Vercel, Netlify, Railway, Render, and Docker. Covers preview environments per PR, database migrations in CI (expand-contract pattern), environment variable validation, health check endpoints, and rollback procedures. Use when configuring deployment pipelines, managing env vars across stages, or establishing rollback runbooks.
Implement file upload flows with presigned URLs (S3, GCS, R2), multipart/tus resumable uploads, Sharp image processing, drag-and-drop UI with progress indicators, server-side MIME validation via magic bytes, virus scanning, and CDN serving. Use when adding profile pictures, document attachments, media galleries, or any user-submitted file feature.
Scaffold production-ready fullstack projects with Next.js (App Router), Remix, Nuxt 3, SvelteKit, Astro, Blitz, RedwoodJS, or Wasp. Covers framework CLI starters, headless CMS options (Payload, Directus, Strapi, Keystone), feature/layer/domain project structures, Turborepo monorepo layout, env var validation, Docker Compose for local services, and dev tooling (Turbopack, Vite, HMR). Use when bootstrapping a new project or auditing an existing one for missing foundations.
Uses power tools
Uses Bash, Write, or Edit tools
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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
npx claudepluginhub rnavarych/alpha-engineer --plugin role-fullstackE-Commerce domain specialization with payment gateway integration, product catalog design, cart/checkout flows, inventory management, order processing, search/merchandising, PCI DSS compliance, and analytics.
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.
Senior Architect persona with system design, ADR writing, scalability analysis, tech stack evaluation, migration planning, cost modeling, threat modeling, capacity planning, and cloud architecture (AWS, GCP, Azure) 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.
Complete fullstack development toolkit: React, Express/FastAPI, PostgreSQL scaffolding with AI agents
5 toxic senior engineers trapped in one plugin. Viktor draws boxes, Max ships, Dennis codes, Sasha breaks, Lena asks why. They argue, roast each other, and somehow deliver excellent technical decisions. Two memory systems: Billy Memory (local ~/.claude/, informal team chaos) + Project ADRs (formal docs/adr/, professional records for git). Team memory never leaks into ADRs. ADRs work without Billy.
Expert agents for software architecture, backend development, and system design
Full-stack agents — frontend, backend, API, DevOps architects
Editorial "Full-Stack Developer" bundle for Claude Code from Antigravity Awesome Skills.
Use this agent when designing APIs, building server-side logic, implementing databases, or architecting scalable backend systems. This agent specializes in creating robust, secure, and performant backend services. Examples:\n\n<example>\nContext: Designing a new API\nuser: "We need an API for our social sharing feature"\nassistant: "I'll design a RESTful API with proper authentication and rate limiting. Let me use the backend-architect agent to create a scalable backend architecture."\n<commentary>\nAPI design requires careful consideration of security, scalability, and maintainability.\n</commentary>\n</example>\n\n<example>\nContext: Database design and optimization\nuser: "Our queries are getting slow as we scale"\nassistant: "Database performance is critical at scale. I'll use the backend-architect agent to optimize queries and implement proper indexing strategies."\n<commentary>\nDatabase optimization requires deep understanding of query patterns and indexing strategies.\n</commentary>\n</example>\n\n<example>\nContext: Implementing authentication system\nuser: "Add OAuth2 login with Google and GitHub"\nassistant: "I'll implement secure OAuth2 authentication. Let me use the backend-architect agent to ensure proper token handling and security measures."\n<commentary>\nAuthentication systems require careful security considerations and proper implementation.\n</commentary>\n</example>