Rules

80 rules available in the Claude directory

Database

PostgreSQL Best Practices: Expert Subagent Guide

Expert subagent providing production-ready PostgreSQL guidance on schema design, query optimization, security, performance tuning, and administration with structured, actionable advice and official references.

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Claude Directory
PHP

WordPress WooCommerce PHP Best Practices: Hooks, Standards & Security Guide

Optimize your WordPress and WooCommerce development with rewritten PHP coding rules emphasizing hooks, strict typing, security, and modular extensibility for high-performance e-commerce sites.

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Testing

Vivado SystemVerilog Best Practices: Optimize FPGA Designs for Timing, Resources & Power

Master Vivado SystemVerilog best practices to build modular, high-performance FPGA designs. Learn Do/Don't tips for synchronous logic, timing closure, resource efficiency, power savings, and robust verification.

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Web Development

UI/UX Design Best Practices: Essential Tips for Developers and Responsive Web Apps

Discover rewritten UI/UX design best practices to create intuitive, accessible, and high-performing interfaces. Perfect for web developers using React, TailwindCSS, and more.

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Claude Directory
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DevOps

Terraform Best Practices for Cloud IaC: Modules, Security, CI/CD & Optimization

Master Terraform for Infrastructure as Code with proven best practices on modules, state management, security, performance, and CI/CD integration for AWS, Azure, and GCP.

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Web Development

How to Write Technical Tutorials for Developers: Do's and Don'ts with Examples

Discover proven strategies to craft engaging technical tutorials that empower developers with actionable code implementations, structured in clear Do/Don't formats for immediate application.

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Claude Directory
TypeScript

Sanity CMS Best Practices: Schema Design, GROQ Queries & TypeScript Optimization

Elevate your Sanity headless CMS workflow with expert guidelines on schema creation, GROQ query optimization, file organization, and TypeScript integration for scalable web development.

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Machine Learning

Julia Data Science Coding Rules: Best Practices for High-Performance Numerical Computing

Master Julia programming for data science with rewritten expert guidelines on multiple dispatch, structs, error handling, testing, and optimization to boost code efficiency and readability.

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TypeScript

Fastify TypeScript Best Practices: Do's and Don'ts for Clean, Scalable APIs

Master Fastify with TypeScript using proven coding rules. Follow these Do's and Don'ts for strict typing, modular architecture, SOLID principles, and robust testing to build high-performance APIs.

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Web Development

Elixir Phoenix Best Practices: Essential Coding Rules for Scalable Web Apps

Unlock expert Elixir and Phoenix development rules rewritten for clarity and SEO. Follow these optimized guidelines for domain-driven design, error handling, testing, and performance to build robust, maintainable applications.

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Claude Directory
DevOps

AutoHotkey v2 Best Practices: Actionable Checklist for Clean Automation Scripts

Elevate your AutoHotkey v2 scripting with this expert-rewritten checklist. Focus on API-driven, beginner-friendly code that's simple, efficient, and production-ready for seamless automation.

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Claude Directory
C#

AL Coding Best Practices for Microsoft Dynamics 365 Business Central Development

Elevate your AL programming skills for Business Central with rewritten expert rules emphasizing modularity, performance tuning, error management, and adherence to official standards for scalable ERP apps.

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Claude Directory
Angular

Angular Best Practices Guide: TypeScript Signals, Performance Optimization & Coding Standards

Elevate your Angular projects with rewritten expert rules for scalable apps using TypeScript, signals for reactivity, immutability, standalone components, and core Web Vitals optimization.

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Claude Directory
Rust

Rust Async Best Practices: Tokio Runtime, Channels & Concurrency Guidelines

Unlock efficient Rust async programming with proven rules for Tokio, channels, error handling, testing, and performance tuning to build robust concurrent applications.

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Claude Directory
Vue.js

Vue.js TypeScript Best Practices: Code Structure, Performance & Optimization Guide

Master Vue.js with TypeScript through rewritten best practices on code organization, naming conventions, TypeScript usage, styling, and performance tweaks for scalable, high-performance apps.

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Claude Directory
Ruby

RSpec Best Practices: Essential Tips for Readable Ruby Tests

Elevate your Ruby testing with proven RSpec best practices for comprehensive coverage, clear structure, and maintainable code. Perfect for Rails developers seeking efficient, isolated tests.

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Claude Directory
Go

Go Microservices Best Practices: Clean Architecture, Observability, Performance & Scalable Backend Development

Master idiomatic Go development for microservices with Clean Architecture, OpenTelemetry observability, robust testing, security essentials, and performance tuning. Build maintainable, high-performance services ready for production.

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Claude Directory
Svelte

SvelteKit Tailwind CSS Best Practices: Essential Coding Rules for High-Performance Web Apps

Unlock expert-level SvelteKit development integrated with Tailwind CSS. These rewritten guidelines cover project structure, routing, styling, performance, SEO, testing, and accessibility for scalable, optimized applications.

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Claude Directory
Web Development

Lua Best Practices: Do's and Don'ts for Clean, Performant Code in Game Dev & Scripting

Unlock expert Lua coding standards with this rewritten guide using Do/Don't format. Optimize performance, ensure security, and write modular code for games, embedded systems, and more.

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Claude Directory
C#

Unity C# Best Practices: Essential Coding Rules for Game Developers

Optimize your Unity projects with these expert Ccoding guidelines. Focus on performance, clean architecture, and cross-platform efficiency using proven Do/Don't rules with practical examples.

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Claude Directory
Web Development

Shopify Theme Development Best Practices: Liquid Filters, Tags, Objects & Architecture Guide

Unlock expert Shopify Online Store 2.0 theme creation with rewritten guidelines on approved Liquid filters, tags, objects, validation rules, folder structures, and UX settings for high-performance, customizable themes.

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Claude Directory
JavaScript

Expo React Native JavaScript Best Practices: Clean Code, Performance & Optimization Guide

Master Expo React Native development with proven JavaScript best practices for readable code, efficient performance, modular components, and seamless UI styling to build high-quality mobile apps.

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PHP

WordPress PHP Best Practices: Essential Coding Standards and Rules for Developers

Elevate your WordPress development with these fully rewritten PHP coding guidelines, focusing on security, performance, OOP principles, and WordPress-specific conventions for scalable, maintainable sites.

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PHP

WordPress PHP Best Practices: Essential Coding Rules and Standards Guide

Optimize your WordPress PHP development with rewritten rules emphasizing security, modularity, hooks, and core APIs. Features Do/Don't formats with practical code examples for immediate use.

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Claude Directory