Legacy Modernization
Rules for incrementally upgrading legacy systems: strangler patterns, compatibility-safe refactors, and test scaffolding before major changes.
Top Rules to Start With
- React Cursor Rules — cursor · react
- Next.js Cursor Rules — cursor · nextjs
- Data Pipeline & ETL Rules for Aider — aider · python
- Data Pipeline & ETL Rules for Claude Code — claude-code · python
- Data Pipeline & ETL Rules for Cline — cline · python
- Data Pipeline & ETL Rules for Continue — continue · python
- Data Pipeline & ETL Rules for Cursor — cursor · python
- Data Pipeline & ETL Rules for GitHub Copilot — copilot · python
78 quality-ranked rules
All collections →React Cursor Rules
Cursor rules for React: component patterns, hooks best practices, performance optimization, and clean state management conventions.
Next.js Cursor Rules
Cursor rules for Next.js App Router: server components, data fetching, routing, and deployment best practices.
Data Pipeline & ETL Rules for Aider
Aider coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Claude Code
Claude Code coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Cline
Cline coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Continue
Continue coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Cursor
Cursor coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for GitHub Copilot
GitHub Copilot coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Windsurf
Windsurf coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Data Pipeline & ETL Rules for Zed
Zed coding rules for Data Pipeline & ETL development. Deep, specific guidance covering architecture, patterns, and best practices.
Python Cursor Rules
Best Cursor AI coding rules for Python development. Enforce type hints, PEP 8, Pythonic patterns, and modern Python best practices in your .cursorrules file.
Rust Cursor Rules
Cursor rules for Rust: ownership patterns, error handling with Result, idiomatic Rust, and performance-aware coding conventions.
TypeScript Cursor Rules
Cursor rules for TypeScript: enforce strict mode, eliminate any types, and write type-safe code with these .cursorrules configurations.
Cypress Testing Rules for Aider
SEO-ready Aider rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Cypress Testing Rules for Claude Code
SEO-ready Claude Code rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Cypress Testing Rules for Cline
SEO-ready Cline rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Cypress Testing Rules for Continue
SEO-ready Continue rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Cypress Testing Rules for GitHub Copilot
SEO-ready GitHub Copilot rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Cypress Testing Rules for Windsurf
SEO-ready Windsurf rules for Cypress testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Jest Testing Rules for Claude Code
SEO-ready Claude Code rules for Jest testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Jest Testing Rules for Continue
SEO-ready Continue rules for Jest testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Jest Testing Rules for GitHub Copilot
SEO-ready GitHub Copilot rules for Jest testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for Aider
SEO-ready Aider rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for Claude Code
SEO-ready Claude Code rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for Cline
SEO-ready Cline rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for Continue
SEO-ready Continue rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for GitHub Copilot
SEO-ready GitHub Copilot rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Playwright Testing Rules for Windsurf
SEO-ready Windsurf rules for Playwright testing with copy-paste instructions, testing guardrails, and production-safe patterns.
Microservices Architecture Rules for Aider
Aider coding rules for Microservices Architecture development. Deep, specific guidance covering architecture, patterns, and best practices.
Microservices Architecture Rules for Cline
Cline coding rules for Microservices Architecture development. Deep, specific guidance covering architecture, patterns, and best practices.
Microservices Architecture Rules for Windsurf
Windsurf coding rules for Microservices Architecture development. Deep, specific guidance covering architecture, patterns, and best practices.
Microservices Architecture Rules for Zed
Zed coding rules for Microservices Architecture development. Deep, specific guidance covering architecture, patterns, and best practices.
Generic Refactoring Rules for JetBrains AI Assistant
Generic Refactoring Rules adapted for JetBrains AI Assistant. High-signal generic engineering guidance for real projects.
Go Cursor Rules
Cursor rules for Go: idiomatic Go patterns, error handling, concurrency, and Go module conventions.
Generic Refactoring Rules for Google Gemini
Generic Refactoring Rules adapted for Google Gemini. High-signal generic engineering guidance for real projects.
Cypress E2E Testing Rules
You are an expert QA engineer with deep knowledge of Cypress and TypeScript, tasked with creating end-to-end UI tests for web applications.