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marnixGeerkens/rocketlauncher-claude-code

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

What is rocketlauncher-claude-code?

rocketlauncher-claude-code is a Claude Code agent skill that comprehensive patterns for Next.js 14+ App Router architecture, Server Components, and modern full-stack React development.

Works with✓Claude Code~Codex CLI~Cursor
npx skills add https://github.com/marnixGeerkens/rocketlauncher-claude-code/tree/HEAD/components/skills/web-development/nextjs-app-router-patterns
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Documentation

Next.js App Router Patterns

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

Use this skill when

  • Building new Next.js applications with App Router
  • Migrating from Pages Router to App Router
  • Implementing Server Components and streaming
  • Setting up parallel and intercepting routes
  • Optimizing data fetching and caching
  • Building full-stack features with Server Actions

Do not use this skill when

  • The task is unrelated to next.js app router patterns
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

Resources

  • resources/implementation-playbook.md for detailed patterns and examples.

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

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.

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.

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