Next.js App Router principles. Server Components, data fetching, routing patterns.

Use when working with tdd workflows tdd cycle

Master modern business analysis with AI-powered analytics,

You are a code refactoring expert specializing in clean code principles, SOLID design patterns, and modern software engineering best practices. Analyze and refactor the provided code to improve...

Expert guide for using n8n-mcp MCP tools effectively. Use when searching for nodes, validating configurations, accessing templates, managing workflows, or using any n8n-mcp tool. Provides tool...

Master end-to-end testing with Playwright and Cypress to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E tests, debugging...

Comprehensive JavaScript reference covering 33+ essential concepts every developer should know. From fundamentals like primitives and closures to advanced patterns like async/await and functional...

How to use a Win32 build of BusyBox to run many of the standard UNIX command line tools on Windows.

Master monorepo management with Turborepo, Nx, and pnpm workspaces to build efficient, scalable multi-package repositories with optimized builds and dependency management. Use when setting up...

-Automatically convert documentation websites, GitHub repositories, and PDFs into Claude AI skills in minutes.

Deep web scraping, screenshots, PDF parsing, and website crawling using Firecrawl API

Semantic search, similar content discovery, and structured research using Exa API

Expert guidance for distributed NoSQL databases (Cassandra, DynamoDB). Focuses on mental models, query-first modeling, single-table design, and avoiding hot partitions in high-scale systems.

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv,...

Optimize vector index performance for latency, recall, and memory. Use when tuning HNSW parameters, selecting quantization strategies, or scaling vector search infrastructure.

Expert data scientist for advanced analytics, machine learning, and

Guide developers through setting up development environments with proper tools, dependencies, and configurations

Use when executing implementation plans with independent tasks in the current session

Creates optimized meta titles, descriptions, and URL suggestions

Expert startup business analyst specializing in market sizing,