JanSzewczyk/claude-plugins Skills

Implement Clerk authentication with Next.js 16 proxy pattern, session claims, onboarding gates, and user metadata management. Use when working with authentication, authorization, or user session management.

Generate Firestore data migration scripts for schema changes, field additions, and data transformations. Use when migrating data, adding fields, or restructuring collections.

Comprehensive error handling patterns for Next.js applications. Covers database errors (DbError), server action errors, React error boundaries, toast notifications for user feedback, and structured logging.

Create Firebase Firestore database queries with TypeScript, proper type lifecycle, error handling, and best practices for Next.js applications.

Performance optimization patterns for Next.js applications. Covers bundle analysis, React rendering optimization, database query optimization, Core Web Vitals, image optimization, and caching strategies.

React 19 patterns and React Compiler optimization guidance. Understand when to use manual memoization vs letting the compiler optimize, and leverage new hooks like useActionState and useFormStatus.

Create Next.js Server Actions with TypeScript following best practices for forms, mutations, validation, and error handling. Use when implementing server-side form handling, CRUD operations, or data mutations.

Structured logging patterns with Pino for Next.js applications. Covers log levels, context enrichment, child loggers, and production best practices.