External services and APIs cannot be directly accessed by Claude Code plugins. Model Context Protocol enables structured integration with databases, cloud services, and custom tools. Connect MCP servers to expose external capabilities as Claude Code tools.

Creating MCP servers requires understanding protocol design, tool patterns, and testing strategies. This guide provides step-by-step instructions for building production-ready MCP servers in Python or TypeScript that integrate seamlessly with Claude and other LLM platforms.

Writing tests after code creates fragile systems that break on refactors. This skill guides you through test-driven development where tests define behavior before implementation, resulting in cleaner code and reliable refactoring.

Codebases accumulate shallow modules that are hard to test and navigate. This skill finds deepening opportunities by analyzing module depth and seams, then guides you through refactoring decisions to make your architecture more maintainable.

Mastra is a TypeScript framework for building AI agents and workflows. This skill provides comprehensive documentation lookup strategies and code patterns to ensure you use current APIs and avoid common errors.

LLMs often truncate or summarize code instead of delivering complete files. This skill enforces exhaustive output by banning placeholder patterns and managing token-limit splits cleanly.

Frontend code reviews help developers catch bugs and anti-patterns before deployment. This skill provides automated checklist-based reviews for TypeScript, JavaScript, TSX, and JSX files using industry best practices.

Complex React components become hard to test and maintain. This skill provides patterns and workflows to refactor high-complexity components by extracting hooks, splitting sub-components, and applying Dify-specific conventions.

Building production-grade LLM applications requires understanding complex architectural patterns. This skill provides proven LangChain patterns for agents, chains, memory management, and tool integration.

Creating AI skills from scratch requires understanding structure, best practices, and validation. This skill provides step-by-step guidance and automated tools to build, scaffold, and validate skills for any domain or workflow.

Code review feedback is often verbose and repetitive, burying actionable items in polite filler. This skill formats each review finding as a single line with exact location, problem, and fix.

Casely eliminates 40% of QA engineering time by converting requirement documents into structured test cases. It learns your team's writing style from examples and exports TestRail-ready Excel files.

Test suites accumulate technical debt over time. Disabled tests lose context, Neovim exclusions lack documentation, and test content becomes meaningless. This skill helps maintainers systematically review disabled tests, document exclusion reasons, and improve test readability.

Get expert Laravel development assistance for Eloquent ORM, REST APIs, queue systems, and Livewire components. The skill provides senior-level guidance for building scalable PHP applications.

Building mobile applications across iOS, Android, and web requires deep expertise in Flutter, state management, and platform-specific implementations. This skill provides comprehensive guidance for Flutter 3+ development with Riverpod, Bloc, and GoRouter patterns.

This skill provides access to the inference.sh CLI platform, which lets you run over 150 AI applications without requiring local GPU resources. Generate images with FLUX, create videos with Veo, query LLMs like Claude and Gemini, perform web searches, and automate Twitter posts through simple bash commands.

Integrate 150+ AI models into your Python applications with a unified SDK. Build agents, run inference, and automate workflows with sync, async, and streaming support.

Running Python code locally requires setting up environments and managing dependencies. This skill provides instant access to a pre-configured Python environment with 100+ libraries ready to use.

Integrate 150+ AI models into JavaScript/TypeScript applications with a unified SDK. Build agents, handle streaming responses, manage file uploads, and implement human approval workflows with full type safety.

Creating chat UIs from scratch requires significant time and design effort. This skill provides ready-to-use React components with shadcn/ui styling for rapid chat interface development.