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marnixGeerkens/rocketlauncher-claude-code

Comprehensive frontend development skill for building modern, performant web applications using ReactJS, NextJS, TypeScript, Tailwind CSS. Includes component scaffolding, performance optimization, bundle analysis, and UI best practices. Use when developing frontend features, optimizing performance, implementing UI/UX designs, managing state, or reviewing frontend code.

What is rocketlauncher-claude-code?

rocketlauncher-claude-code is a Claude Code agent skill that comprehensive frontend development skill for building modern, performant web applications using ReactJS, NextJS, TypeScript, Tailwind CSS. Includes component scaffolding, performance optimization, bundle analysis, and UI best practices. Use when developing frontend features, optimizing performance, implementing UI/UX designs, managing state, or reviewing frontend code.

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Documentation

Senior Frontend

Complete toolkit for senior frontend with modern tools and best practices.

Quick Start

Main Capabilities

This skill provides three core capabilities through automated scripts:

# Script 1: Component Generator
python scripts/component_generator.py [options]

# Script 2: Bundle Analyzer
python scripts/bundle_analyzer.py [options]

# Script 3: Frontend Scaffolder
python scripts/frontend_scaffolder.py [options]

Core Capabilities

1. Component Generator

Automated tool for component generator tasks.

Features:

  • Automated scaffolding
  • Best practices built-in
  • Configurable templates
  • Quality checks

Usage:

python scripts/component_generator.py <project-path> [options]

2. Bundle Analyzer

Comprehensive analysis and optimization tool.

Features:

  • Deep analysis
  • Performance metrics
  • Recommendations
  • Automated fixes

Usage:

python scripts/bundle_analyzer.py <target-path> [--verbose]

3. Frontend Scaffolder

Advanced tooling for specialized tasks.

Features:

  • Expert-level automation
  • Custom configurations
  • Integration ready
  • Production-grade output

Usage:

python scripts/frontend_scaffolder.py [arguments] [options]

Reference Documentation

React Patterns

Comprehensive guide available in references/react_patterns.md:

  • Detailed patterns and practices
  • Code examples
  • Best practices
  • Anti-patterns to avoid
  • Real-world scenarios

Nextjs Optimization Guide

Complete workflow documentation in references/nextjs_optimization_guide.md:

  • Step-by-step processes
  • Optimization strategies
  • Tool integrations
  • Performance tuning
  • Troubleshooting guide

Frontend Best Practices

Technical reference guide in references/frontend_best_practices.md:

  • Technology stack details
  • Configuration examples
  • Integration patterns
  • Security considerations
  • Scalability guidelines

Tech Stack

Languages: TypeScript, JavaScript, Python, Go, Swift, Kotlin Frontend: React, Next.js, React Native, Flutter Backend: Node.js, Express, GraphQL, REST APIs Database: PostgreSQL, Prisma, NeonDB, Supabase DevOps: Docker, Kubernetes, Terraform, GitHub Actions, CircleCI Cloud: AWS, GCP, Azure

Development Workflow

1. Setup and Configuration

# Install dependencies
npm install
# or
pip install -r requirements.txt

# Configure environment
cp .env.example .env

2. Run Quality Checks

# Use the analyzer script
python scripts/bundle_analyzer.py .

# Review recommendations
# Apply fixes

3. Implement Best Practices

Follow the patterns and practices documented in:

  • references/react_patterns.md
  • references/nextjs_optimization_guide.md
  • references/frontend_best_practices.md

Best Practices Summary

Code Quality

  • Follow established patterns
  • Write comprehensive tests
  • Document decisions
  • Review regularly

Performance

  • Measure before optimizing
  • Use appropriate caching
  • Optimize critical paths
  • Monitor in production

Security

  • Validate all inputs
  • Use parameterized queries
  • Implement proper authentication
  • Keep dependencies updated

Maintainability

  • Write clear code
  • Use consistent naming
  • Add helpful comments
  • Keep it simple

Common Commands

# Development
npm run dev
npm run build
npm run test
npm run lint

# Analysis
python scripts/bundle_analyzer.py .
python scripts/frontend_scaffolder.py --analyze

# Deployment
docker build -t app:latest .
docker-compose up -d
kubectl apply -f k8s/

Troubleshooting

Common Issues

Check the comprehensive troubleshooting section in references/frontend_best_practices.md.

Getting Help

  • Review reference documentation
  • Check script output messages
  • Consult tech stack documentation
  • Review error logs

Resources

  • Pattern Reference: references/react_patterns.md
  • Workflow Guide: references/nextjs_optimization_guide.md
  • Technical Guide: references/frontend_best_practices.md
  • Tool Scripts: scripts/ directory

Individual skills in this repo

This repo contains 13 individual skills — each has its own dedicated page.

marnixGeerkens/rocketlauncher-claude-code

When the user wants to optimize, improve, or increase conversions on any marketing page — including homepage, landing pages, pricing pages, feature pages, or blog posts. Also use when the user says "CRO," "conversion rate optimization," "this page isn't converting," "improve conversions," or "why isn't this page working." For signup/registration flows, see signup-flow-cro. For post-signup activation, see onboarding-cro. For forms outside of signup, see form-cro. For popups/modals, see popup-cro.

marnixGeerkens/rocketlauncher-claude-code

Balance visual design with ATS compatibility for creative roles. Use when the user is in design, art, writing, marketing creative, or any visual/creative field and needs a resume that looks distinctive but still parses.

marnixGeerkens/rocketlauncher-claude-code

Transform resume bullets into detailed portfolio case studies with context, action, and outcome. Use when the user mentions portfolio, case study, project write-up, or expanding a resume bullet into a longer narrative.

marnixGeerkens/rocketlauncher-claude-code

Expert in building portfolios that actually land jobs and clients - not just showing work, but creating memorable experiences. Covers developer portfolios, designer portfolios, creative portfolios, and portfolios that convert visitors into opportunities. Use when: portfolio, personal website, showcase work, developer portfolio, designer portfolio.

marnixGeerkens/rocketlauncher-claude-code

Tailwind CSS v4 principles. CSS-first configuration, container queries, modern patterns, design token architecture.

marnixGeerkens/rocketlauncher-claude-code

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

marnixGeerkens/rocketlauncher-claude-code

Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.

marnixGeerkens/rocketlauncher-claude-code

Next.js App Router principles. Server Components, data fetching, routing patterns.

marnixGeerkens/rocketlauncher-claude-code

Expert integration of Supabase Auth with Next.js App Router Use when: supabase auth next, authentication next.js, login supabase, auth middleware, protected route.

marnixGeerkens/rocketlauncher-claude-code

Create API handoff documentation for frontend developers. Use when backend work is complete and needs to be documented for frontend integration, or user says 'create handoff', 'document API', 'frontend handoff', or 'API documentation'.

marnixGeerkens/rocketlauncher-claude-code

Document frontend data needs for backend developers. Use when frontend needs to communicate API requirements to backend, or user says 'backend requirements', 'what data do I need', 'API requirements', or is describing data needs for a UI.

marnixGeerkens/rocketlauncher-claude-code

Comprehensive Python library for astronomy and astrophysics. This skill should be used when working with astronomical data including celestial coordinates, physical units, FITS files, cosmological calculations, time systems, tables, world coordinate systems (WCS), and astronomical data analysis. Use when tasks involve coordinate transformations, unit conversions, FITS file manipulation, cosmological distance calculations, time scale conversions, or astronomical data processing.

marnixGeerkens/rocketlauncher-claude-code

Comprehensive patterns for Next.js 14+ App Router architecture, Server Components, and modern full-stack React development.

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