practices▌

Comprehensive Next.js development guidelines covering file structure, RSC patterns, data fetching, optimization, and error handling. \n \n Covers 15+ topic areas including file conventions, route segments, RSC boundaries, async patterns, metadata generation, and image/font optimization \n Provides runtime selection guidance, directive usage, and error handling strategies with specific file conventions like error.tsx and not-found.tsx \n Includes data fetching patterns, route handler best practic

Principles and decision-making for Node.js development in 2025. Learn to THINK, not memorize code patterns.

Comprehensive security hardening for web applications covering HTTPS, input validation, authentication, and OWASP Top 10 vulnerabilities. \n \n Enforces HTTPS, security headers (CSP, HSTS), and rate limiting via Helmet and Express middleware to prevent DDoS and common attacks \n Prevents SQL Injection and XSS through parameterized queries, input validation with Joi, and output encoding with DOMPurify \n Implements CSRF token protection, JWT-based authentication with refresh token rotation, and s

Grounded in the Official NestJS Documentation, this skill enforces modular architecture, dependency injection scoping, exception filters, DTO validation with class-validator, and Drizzle ORM integration patterns.

Simple, pragmatic, opinionated. Only what matters for writing production-grade Rust code.

42 rules across 8 categories for PocketBase v0.36+, prioritized by impact.

Tamagui v1.x patterns beyond fundamentals: Config v4, compiler optimization, compound components, and gotchas.

Postgres performance optimization rules across 8 priority categories, from query tuning to advanced features. \n \n Organized into 8 rule categories prioritized by impact: query performance and connection management (critical), security and RLS, schema design, concurrency, data access patterns, monitoring, and advanced features \n Each rule includes detailed explanations, incorrect vs. correct SQL examples, EXPLAIN output analysis, and performance metrics to guide optimization decisions \n Cover

You are an expert in SEO (Search Engine Optimization) for modern web applications. Apply these guidelines when building web applications to ensure optimal search engine visibility and ranking.

MySQL development best practices for schema design, query optimization, and database administration. \n \n Covers schema design with InnoDB as default engine, appropriate data types (DECIMAL for financial data, utf8mb4 charset), and primary key strategies including AUTO_INCREMENT and UUID storage \n Indexing strategies including B-tree, FULLTEXT, and covering indexes with guidelines on column selectivity and composite index ordering \n Query optimization using EXPLAIN analysis, prepared statemen