mcp-skills

# The Definitive Guide to Open Source Claude Code Skills Libraries ## Executive Overview Claude Skills are modular capabilities that extend Claude's functionality through specialized instruction sets, scripts, and resources. They use progressive disclosure architecture (~100 tokens for metadata, <5k tokens when activated) to maintain efficiency while providing expert-level capabilities. The ecosystem includes **official Anthropic resources**, **200+ MCP servers**, **dozens of comprehensive community collections**, and **hundreds of individual skills** covering coding, toolchains, languages, and operations. **All resources documented here are freely available as open source content**, primarily under MIT or Apache 2.0 licenses. --- ## Official Anthropic Resources ### anthropics/skills - The Official Repository **Primary hub for Claude Skills with production-grade implementations** **URL:** https://github.com/anthropics/skills **License:** Apache 2.0 (example skills); Source-available (document skills) **Stars:** ~17,900+ | **Status:** ✅ Actively maintained by Anthropic **Example Skills (Apache 2.0):** - **algorithmic-art** - Generate p5.js art with seeded randomness, flow fields, particle systems - **canvas-design** - Design visual art in PNG and PDF formats using design philosophies - **artifacts-builder** - Build complex HTML artifacts using React, Tailwind CSS, shadcn/ui - **mcp-server** - Guide for creating high-quality MCP servers for API integration - **webapp-testing** - Test local applications using Playwright for UI verification - **brand-guidelines** - Apply Anthropic's official brand colors and typography - **skill-creator** - Interactive tool that guides you through building new skills - **template-skill** - Basic template to use as starting point for new skills **Document Skills (Source-Available, Pre-included with Claude):** - **docx** - Create, edit, analyze Word documents with tracked changes and formatting preservation - **pdf** - Comprehensive PDF manipulation toolkit for extraction, creation, merging, splitting - **pptx** - Create, edit, analyze PowerPoint presentations with layouts, charts, templates - **xlsx** - Create, edit, analyze Excel spreadsheets with formulas, formatting, data analysis **Installation:** `/plugin marketplace add anthropics/skills` ### anthropics/mcpb - MCP Bundles **One-click installation of MCP servers for desktop applications** **URL:** https://github.com/anthropics/mcpb **License:** MIT | **Status:** ✅ Actively maintained **Capabilities:** Simplified distribution and installation of local MCP servers with automatic updates, easy configuration, and curated directory integration. Supports Node.js, Python, and binary bundles. **Installation:** `npm install -g @anthropic-ai/mcpb` ### Model Context Protocol (MCP) - Official Organization **Open protocol enabling seamless integration between LLMs and external data sources** **Organization:** https://github.com/modelcontextprotocol **Managed by:** Anthropic, PBC **Documentation:** https://modelcontextprotocol.io **Official SDKs (All MIT License):** - TypeScript SDK: https://github.com/modelcontextprotocol/typescript-sdk - Python SDK: https://github.com/modelcontextprotocol/python-sdk - C# SDK: https://github.com/modelcontextprotocol/csharp-sdk (with Microsoft) - Go SDK: https://github.com/modelcontextprotocol/go-sdk (with Google) - Java SDK: https://github.com/modelcontextprotocol/java-sdk - Kotlin SDK: https://github.com/modelcontextprotocol/kotlin-sdk (with JetBrains) - PHP, Ruby, Rust, Swift SDKs also available **Official MCP Servers:** https://github.com/modelcontextprotocol/servers - **filesystem** - Secure file operations with configurable access controls - **git** - Repository operations, searching, analyzing commits - **fetch** - Web content fetching and conversion for efficient LLM usage - **memory** - Knowledge graph-based persistent memory system - **sequential-thinking** - Dynamic problem-solving through thought sequences **MCP Registry:** https://github.com/modelcontextprotocol/registry **Browse servers:** https://registry.modelcontextprotocol.io --- ## Community Collections and Curated Lists ### travisvn/awesome-claude-skills **Most comprehensive guide with detailed documentation and comparison matrices** **URL:** https://github.com/travisvn/awesome-claude-skills **Stars:** ~2,000+ | **License:** Apache 2.0 **Last Updated:** November 2025 | **Status:** ✅ Active **Features:** - Comprehensive curated list of official and community skills - Extensive Skills vs MCP vs System Prompts comparison - Security guidelines and best practices - FAQ and troubleshooting guide - Progressive disclosure architecture explained - Community verification system ### BehiSecc/awesome-claude-skills **Well-organized categorized collection with practical focus** **URL:** https://github.com/BehiSecc/awesome-claude-skills **Stars:** ~3,800+ | **License:** Open source **Last Updated:** 2025 | **Status:** ✅ Active **Categories:** - Document Skills (docx, pdf, pptx, xlsx) - Development & Code Tools (TDD, git-worktrees, AWS, pypict testing) - Data & Analysis (CSV analysis, root-cause-tracing) - Scientific & Research Tools (26 databases, 58 packages including PubMed, PubChem, UniProt, ChEMBL, AlphaFold) - Writing & Research (article extraction, brainstorming) - Media & Content (YouTube transcripts, EPUB, image enhancer) - Security & Web Testing (ffuf, webapp-testing, systematic debugging) - Utility & Automation (file organizer, invoice organizer) ### ComposioHQ/awesome-claude-skills **Production-focused collection emphasizing real-world productivity** **URL:** https://github.com/ComposioHQ/awesome-claude-skills **License:** Apache 2.0 | **Status:** ✅ Active **Highlights:** - Official document skills integration - Business & marketing skills (competitive ads, domain brainstormer, lead research) - Security & forensics (computer forensics, threat hunting with Sigma rules, metadata extraction) - Integration with Composio platform (500+ apps) - Skills API documentation and examples ### obra/superpowers **Battle-tested skills library with systematic development workflows** **URL:** https://github.com/obra/superpowers **License:** MIT | **Last Updated:** October 2025 | **Status:** ✅ Active **Core Skills:** - **Testing:** test-driven-development, condition-based-waiting, testing-anti-patterns - **Debugging:** systematic-debugging, root-cause-tracing, verification-before-completion, defense-in-depth - **Collaboration:** brainstorming, writing-plans, executing-plans, dispatching-parallel-agents - **Development:** using-git-worktrees, finishing-a-development-branch, subagent-driven-development - **Meta:** writing-skills, sharing-skills, testing-skills-with-subagents **Custom Slash Commands:** /superpowers:brainstorm, /superpowers:write-plan, /superpowers:execute-plan **Installation:** `/plugin marketplace add obra/superpowers-marketplace` **Companion:** https://github.com/obra/superpowers-lab (experimental skills) ### alirezarezvani/claude-skills **Production-ready skill packages with comprehensive Python CLI tools** **URL:** https://github.com/alirezarezvani/claude-skills **License:** MIT | **Last Updated:** November 2025 | **Status:** ✅ Active **42 Production Skills Including:** **Marketing (3 skills):** - content-creator: Brand voice analyzer, SEO optimizer, social media frameworks - marketing-demand-acquisition: CAC calculator, full-funnel strategy - marketing-strategy-pmm: Positioning, GTM strategy, competitive intelligence **Executive Advisory (2 skills):** - ceo-advisor: Strategy analyzer, financial scenario modeling, board governance - cto-advisor: Tech debt analyzer, team scaling calculator, architecture decisions **Product Team (5 skills):** - product-manager-toolkit: RICE prioritizer, customer interview analyzer, PRD templates - agile-product-owner: User story generator, sprint planner - ux-researcher-designer: Persona generator, journey mapper **Engineering Team - Core (9 skills):** - Software Architect, Frontend Engineer, Backend Engineer, Fullstack Engineer - QA Testing Engineer, DevOps Engineer, SecOps Engineer, Code Reviewer, Security Engineer **Engineering Team - AI/ML/Data (5 skills):** - Data Scientist, Data Engineer, ML/AI Engineer, Prompt Engineer, Computer Vision Engineer **Regulatory Affairs & Quality (12 skills):** - Quality Manager, QMS ISO 13485 Specialist, CAPA Officer, Documentation Manager - Risk Management Specialist, Information Security Manager, MDR/FDA Specialists **Features:** - 97+ Python CLI analysis tools included - Documented ROI: 40%+ time savings, 30%+ quality improvements - Estimated value: $1.7M+/month per organization **Related:** https://github.com/alirezarezvani/claude-code-skill-factory (generation toolkit) ### Additional Community Collections **abubakarsiddik31/claude-skills-collection** **URL:** https://github.com/abubakarsiddik31/claude-skills-collection Table-based organization with categorized links to all major skills **metaskills/skill-builder** **URL:** https://github.com/metaskills/skill-builder **Author:** Ken Collins (AWS Serverless Hero) Claude Code Agent Skills Builder - meta-skill for creating, editing, converting skills **SkillsMP.com - Discovery Platform** **URL:** https://skillsmp.com Searchable marketplace of 13,000+ Claude Code skills from GitHub with installation commands --- ## CODING SKILLS: Development Workflows ### Code Generation and Refactoring **artifacts-builder** (Official Anthropic) **URL:** https://github.com/anthropics/skills/tree/main/artifacts-builder Build complex HTML artifacts using React, Tailwind CSS, shadcn/ui components for claude.ai **Code Refactoring Skill** **URL:** https://claude-plugins.dev/skills/@dasien/RemoteCredentialRequestPOC/code-refactoring Improve code structure and readability without changing external behavior **subagent-driven-development** (obra/superpowers) Dispatches independent subagents for individual tasks with code review checkpoints for rapid, controlled development **using-git-worktrees** (obra/superpowers) Creates isolated git worktrees with smart directory selection for parallel development branches ### Testing Frameworks and Test Generation **test-driven-development** (obra/superpowers) **URL:** https://github.com/obra/superpowers/tree/main/skills/test-driven-development RED-GREEN-REFACTOR cycle enforcement. Mandatory use before implementation code for any feature/bugfix **webapp-testing** (Official Anthropic) **URL:** https://github.com/anthropics/skills/tree/main/webapp-testing Test local web applications using Playwright for UI verification, screenshot capture, debugging **playwright-skill** (Community Enhanced) **URL:** https://github.com/lackeyjb/playwright-skill **License:** MIT | Model-invoked Playwright automation where Claude writes custom automation code on-the-fly. Zero module resolution errors, visible browser by default, safe cleanup. **pypict-claude-skill** **URL:** https://github.com/omkamal/pypict-claude-skill Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for optimized test suites with pairwise coverage **test-fixing** **URL:** https://github.com/mhattingpete/claude-skills-marketplace/tree/main/engineering-workflow-plugin/skills/test-fixing Detect failing tests and propose patches with systematic error grouping strategies **defense-in-depth** (obra/superpowers) Implement multi-layered testing and security best practices with comprehensive validation coverage ### Linting and Code Quality **clj-kondo** **URL:** https://claude-plugins.dev/skills/@hugoduncan/library-skills/clj-kondo Comprehensive guide to using clj-kondo for Clojure code linting with configuration management, custom hooks, CI/CD integration **move-code-quality-skill** **URL:** https://github.com/1NickPappas/move-code-quality-skill Analyzes Move language packages against official Move Book Code Quality Checklist for Move 2024 Edition compliance **cclint - Claude Code Linter** **URL:** https://github.com/carlrannaberg/cclint Comprehensive linting tool for Claude Code projects with agent/subagent linting, command validation, settings validation, documentation linting, multiple output formats (Console, JSON, Markdown), CI/CD friendly ### Debugging and Error Analysis **systematic-debugging** (obra/superpowers) **URL:** https://github.com/obra/superpowers/tree/main/skills/systematic-debugging Four-phase debugging framework ensuring root cause investigation before fixes: (1) Information gathering, (2) Hypothesis formation, (3) Hypothesis testing, (4) Fix implementation. Evidence-based debugging over ad-hoc approaches. **root-cause-tracing** (obra/superpowers) Use when errors occur deep in execution to trace back to the original trigger across components **verification-before-completion** (obra/superpowers) Ensure issues are actually fixed before claiming completion with mandatory evidence validation ### Documentation Generation **skill-creator** (Official Anthropic) **URL:** https://github.com/anthropics/skills/tree/main/skill-creator Interactive skill creation tool with guided Q&A, template generation, best practices enforcement **claude-auto-documenter-v2** **URL:** https://github.com/Puneet8800/claude-auto-documenter-v2 Production-ready MCP server for automatic documentation generation with task completion detection, file system watcher, real-time updates ### API Integration and Development **mcp-builder / mcp-server** (Official Anthropic) **URL:** https://github.com/anthropics/skills/tree/main/mcp-server Guide for creating high-quality MCP servers to integrate external APIs and services with best practices **aws-skills** **URL:** https://github.com/zxkane/aws-skills **License:** MIT | AWS development with CDK best practices, cost optimization MCP servers, serverless architecture patterns, event-driven architecture ### Data Processing and Transformation **csv-data-summarizer-claude-skill** **URL:** https://github.com/coffeefuelbump/csv-data-summarizer-claude-skill Automatically analyzes CSV files with column analysis, distribution analysis, missing data detection, correlation identification **scientific-packages** **URL:** https://github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-packages 58 specialized Python packages for bioinformatics, cheminformatics, machine learning, data analysis **scientific-databases** **URL:** https://github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-databases Access to 26 scientific databases including PubMed, PubChem, UniProt, ChEMBL, AlphaFold DB **article-extractor** **URL:** https://github.com/michalparkola/tapestry-skills-for-claude-code/tree/main/article-extractor Extract full article text and metadata from web pages with text extraction, metadata parsing, web scraping --- ## TOOLCHAIN SKILLS: Build Tools, Package Managers, Development Environments ### Version Control and Code Repository **GitHub Official MCP Server** **URL:** https://github.com/github/github-mcp-server **License:** MIT | **Status:** ⭐⭐⭐⭐⭐ Official GitHub implementation **Capabilities:** - Repository management: Browse code, search files, analyze commits, project structure - Issue & PR automation: Create, update, manage issues and pull requests - CI/CD intelligence: Monitor GitHub Actions, analyze build failures, manage releases - Code security: Code scanning alerts, Dependabot integration, secret scanning - Team collaboration: Discussions, notifications, team activity **Toolsets:** Context, Actions, Code Security, Dependabot, Discussions, Gists, Git, Issues, Labels, Notifications, Organizations, Projects, Pull Requests, Repositories, Secret Protection, Security Advisories, Stargazers, Users **GitLab Server** **URL:** https://github.com/modelcontextprotocol/servers/tree/main/src/gitlab **License:** MIT | GitLab platform integration for project management and CI/CD operations **Git MCP Server (Community - Enhanced)** **URL:** https://github.com/cyanheads/git-mcp-server Comprehensive Git operations: clone, commit, branch, diff, log, status, push, pull, merge, rebase, worktree management, tag management, GPG/SSH commit signing **GitMCP - Repository Documentation** **URL:** https://gitmcp.io | https://github.com/idosal/git-mcp Automatically creates MCP server for ANY GitHub repository. Simply change `github.com` to `gitmcp.io` in any repo URL for instant documentation access ### Package Managers **NPM/Node.js Package Management** Multiple MCP servers provide npm integration for registry access, package search, dependency management **NuGet Server** (Microsoft) **URL:** Part of https://github.com/microsoft/mcp NuGet package management, search, installation for .NET ecosystem **Maven Tools MCP** **URL:** https://github.com/arvindand/maven-tools-mcp Maven Central dependency intelligence for JVM build tools (Maven, Gradle, SBT, Mill) with Context7 documentation support **Homebrew Server** (Official) **URL:** https://docs.brew.sh/MCP-Server Run Homebrew commands locally for macOS/Linux package management ### Build and Development Environment Tools **Nx Server** (Official) **URL:** https://github.com/nrwl/nx-console/blob/master/apps/nx-mcp Nx workspace understanding, project relationships, runnable tasks for monorepo management and build orchestration **Next.js Devtools** Next.js development tools for AI coding assistants providing project management capabilities **VS Code Devtools - BifrostMCP** **URL:** https://github.com/biegehydra/BifrostMCP Connect to VS Code IDE with semantic tools like find_usages for IDE integration and code navigation **E2B Server** (Official) **URL:** https://github.com/e2b-dev/mcp-server Secure cloud sandboxes for code execution providing safe testing environments **RchGrav/claudebox** **URL:** https://github.com/RchGrav/claudebox **License:** MIT | Ultimate Claude Code Docker Development Environment with containerized setup, development profiles for C/C++, Python, Rust, Go, per-project isolation, persistent configuration **VishalJ99/claude-docker** **URL:** https://github.com/VishalJ99/claude-docker Docker container for running Claude Code with full permissions, pre-configured MCP servers, persistent conversation history, security isolation **Docker MCP Toolkit** (Official Docker) **URL:** https://www.docker.com/blog/connect-mcp-servers-to-claude-desktop-with-mcp-toolkit Bridges Claude with Docker's trusted developer workflow - secure containerized MCP server execution, GitHub integration, Kubernetes management, complete isolation with containers torn down after use --- ## PROGRAMMING LANGUAGE SKILLS ### Python-Specific Skills **hoelzro/dotfiles - python-style** **URL:** https://claude-plugins.dev/skills/@hoelzro/dotfiles/python-style Python coding conventions and best practices including using `uv run` to execute scripts with temporary dependencies **google-adk-python** (via mrgoonie/claudekit-skills) **URL:** https://github.com/mrgoonie/claudekit-skills Google's Agent Development Kit for building AI agents with tool integration, multi-agent orchestration, workflow patterns (sequential, parallel, loop), deployment to Vertex AI **alirezarezvani/claude-skills - Python Tools** 97+ Python CLI analysis tools including Brand Voice Analyzer, SEO Optimizer, CAC Calculator, Tech Debt Analyzer, Team Scaling Calculator, RICE Prioritizer, Customer Interview Analyzer ### TypeScript/JavaScript Skills **Nice-Wolf-Studio/claude-skills-threejs-ecs-ts** **URL:** https://github.com/Nice-Wolf-Studio/claude-skills-threejs-ecs-ts **License:** MIT | TypeScript + Three.js + Entity Component Systems for mobile-optimized Three.js games **Capabilities:** Three.js scene initialization, renderer/camera/lighting configuration, resource management, window resize handling, animation loops, React Three Fiber integration, mobile touch input, performance optimizations targeting 60 FPS desktop, 30-60 FPS mobile depending on device tier **diet103/claude-code-infrastructure-showcase** **URL:** https://github.com/diet103/claude-code-infrastructure-showcase Born from 6 months real-world use managing complex TypeScript microservices projects. Auto-activating skills, backend development guidelines with 12 resource files (routing, controllers, services, repositories, testing), modular design under context limits **mrgoonie/claudekit-skills - TypeScript/JavaScript** **URL:** https://github.com/mrgoonie/claudekit-skills - **better-auth:** Comprehensive TypeScript authentication framework (email/password, OAuth, 2FA, passkeys, multi-tenancy) - **web-frameworks:** Next.js (App Router, Server Components, RSC, PPR, SSR, SSG, ISR), Turborepo (monorepo management) - **ui-styling:** shadcn/ui components (Radix UI + Tailwind), Tailwind CSS utility-first styling - **frontend-development:** React/TypeScript guidelines with Suspense, lazy loading, useSuspenseQuery, MUI v7 **ruvnet/claude-flow - TypeScript** **URL:** https://github.com/ruvnet/claude-flow/wiki/CLAUDE-MD-TypeScript **Stars:** 10k+ | TypeScript best practices including strict type checking coordination, concurrent/parallel operations, build operations, Jest/Vitest suites with type checking ### Go Language Skills **BradPerbs/claude-go** **URL:** https://github.com/BradPerbs/claude-go GoLang Wrapper for Claude 3 API with configuration functions and SendPrompt method **Effective Go Development with Claude** **Article:** https://dshills.medium.com/effective-go-development-with-claude-best-practices-for-ai-pair-programming-83fba0247a4f Go-specific practices: Define directory structure early (cmd/, pkg/, internal/, api/, scripts/), write interfaces first for clean contracts, interface-driven design for idiomatic modular code **ruvnet/claude-flow - Go** **URL:** https://github.com/ruvnet/claude-flow/wiki/CLAUDE-MD-Go Go concurrency patterns, simple syntax, standard library usage for microservices and CLI tools ### Rust Skills **Microsoft Pragmatic Rust Guidelines Skill** **Article:** https://medium.com/rustaceans/teaching-claude-to-write-better-rust-automating-microsofts-guidelines-with-skills-3207a797b9f8 **Author:** Enzo Lombardi | AI-optimized version of Microsoft's Rust guidelines specifically for coding assistants teaching Claude to consistently follow Rust best practices **ruvnet/claude-flow - Rust** **URL:** https://github.com/ruvnet/claude-flow/wiki/CLAUDE-MD-Rust Memory-safe coordination with Cargo parallel compilation, Cargo operations batching, memory safety patterns, async/threading implementations, borrowing/ownership patterns **Rust Development Excellence Reports:** - **"Working with Claude Code: Accelerating My Rust Learning Journey"** (https://www.vincentbruijn.nl/articles/claude-code) - Built HTTP server while learning Rust - **"Claude Code and Rust"** by Julian Schrittwieser (https://www.julian.ac/blog/2025/05/03/claude-code-and-rust) - "Rust is great for letting Claude Code work unsupervised" with type system acting as expert code reviewer - **"Building personal software with Claude"** by Nelson Elhage (https://blog.nelhage.com/post/personal-software-with-claude) - Ported Emacs Lisp to Rust in single prompt, compiled first try, 1000x performance improvement ### Java Skills **anthropic-sdk-java** (Official) Official Java client library for the Anthropic API with modern Java features, comprehensive documentation **ruvnet/claude-flow - Java** **URL:** https://github.com/ruvnet/claude-flow/wiki/CLAUDE-MD-Java Maven/Gradle ecosystem coordination, Spring Boot operations, JUnit/TestNG suites in parallel, JPA/Hibernate configurations, enterprise patterns **Claude-Java-AI** (Poe Bot) **URL:** https://poe.com/Claude-Java-AI Claude Java AI Assistant for writing, optimizing, improving Java code with constructive feedback on quality, efficiency, and adherence to Java standards ### Multi-Language and Language-Agnostic Skills **Software Architecture** (ComposioHQ) Clean Architecture patterns, SOLID principles, comprehensive software design best practices across all languages **General Language Support:** Claude Code provides comprehensive support for C++, C#, Ruby, SQL with deep understanding of language-specific patterns, idioms, and best practices for each major language. --- ## OPERATIONS SKILLS: DevOps, Deployment, CI/CD, Infrastructure, Monitoring ### CI/CD Pipeline Skills **djacobsmeyer/claude-skills-engineering** **URL:** https://github.com/djacobsmeyer/claude-skills-engineering **License:** MIT | **Created:** 2025-11-14 **DevOps Capabilities:** - CI/CD Pipeline Builder: GitHub Actions, GitLab CI, CircleCI configuration - Docker Workflow: Container management, Dockerfile generation, docker-compose - Git worktree management for parallel development - Automated code review with linting - Test generation (unit, integration, E2E) **Installation:** `/plugin marketplace add djacobsmeyer/claude-skills-engineering` **wshobson/agents - CI/CD Plugin** **URL:** https://github.com/wshobson/agents **License:** MIT | **Status:** Updated for Sonnet 4.5 & Haiku 4.5 **Comprehensive system:** 85 specialized AI agents, 47 agent skills, 44 development tools in 63 focused plugins - 4 specialized CI/CD skills: pipeline design, GitHub Actions, GitLab CI, secrets management - Deployment engineering agents - Full-stack orchestration with multi-agent workflows **Installation:** `/plugin marketplace add wshobson/agents` then `/plugin install kubernetes-operations` **ruvnet/claude-flow - CI/CD Module** **URL:** https://github.com/ruvnet/claude-flow/wiki/CLAUDE-MD-CICD **Ranked:** #1 in agent-based frameworks Complete CI/CD pipeline setup with GitHub Actions, batch processing for all pipeline stages, Docker and Kubernetes configuration, GitOps workflows ### Cloud Platform Integration **zxkane/aws-skills** **URL:** https://github.com/zxkane/aws-skills **License:** MIT | **Status:** ✅ Active **AWS Capabilities:** - **aws-cdk-development:** AWS CDK best practices, infrastructure as code, pre-deployment validation - **aws-cost-operations:** Cost optimization with 7 integrated MCP servers (AWS Documentation, CDK, Billing, Cost Management, Pricing, Cost Explorer, CloudWatch, CloudTrail) - **aws-serverless-eda:** Serverless and event-driven architecture with 4 integrated MCP servers (Serverless MCP, Lambda Tool, Step Functions, SNS/SQS) **Supported Services:** Lambda, S3, EC2, CloudFormation, CDK, Step Functions, EventBridge, API Gateway, CloudWatch, Cost Explorer **Installation:** `/plugin marketplace add zxkane/aws-skills` then `/plugin install aws-cdk@aws-skills` **Claude with Amazon Bedrock** (Official AWS) **URL:** https://aws.amazon.com/bedrock/anthropic Claude Sonnet 4.5, Haiku 4.5, Opus 4.1 on Bedrock with tool use and agents for AWS integration, extended thinking mode **Training:** https://anthropic.skilljar.com/claude-in-amazon-bedrock **Microsoft Azure Integration** (Official) **URL:** https://azure.microsoft.com/en-us/blog/introducing-anthropics-claude-models-in-microsoft-foundry Claude available in Microsoft Foundry with Skills integration for Azure DevOps automation, query Azure DevOps logs, diagnose issues, trigger deployments **Azure MCP Server** (Official Microsoft) **URL:** https://github.com/microsoft/mcp/tree/main/servers/Azure.Mcp.Server Azure Storage, Cosmos DB, Azure CLI access with 40+ Azure service tools **Google Cloud Run Server** **URL:** https://github.com/GoogleCloudPlatform/cloud-run-mcp Deploy code to Google Cloud Run with deployment automation **Cloudflare Server** (Official) **URL:** https://github.com/cloudflare/mcp-server-cloudflare Workers, KV, R2, D1 management for edge computing and serverless deployment ### Container and Kubernetes Management **Docker Server** **URL:** https://github.com/QuantGeekDev/docker-mcp Container operations, compose stack management for container lifecycle management **Kubernetes Servers (Multiple implementations):** 1. **mcp-server-kubernetes** - https://github.com/strowk/mcp-k8s-go - Natural language cluster management 2. **k8m** - https://github.com/weibaohui/k8m - Multi-cluster with UI 3. **mkp** - https://github.com/StacklokLabs/mkp - Native Go implementation 4. **blankcut/kubernetes-claude** - https://playbooks.com/mcp/blankcut-kubernetes-claude - Integrating with ArgoCD and GitLab for GitOps workflows **Common Features:** Pod logs, resource CRUD, command execution, monitoring, deployment management ### Infrastructure as Code (IaC) **hashicorp/terraform-mcp-server** (Official) **URL:** https://github.com/hashicorp/terraform-mcp-server **Version:** 0.2.3 | **License:** Official HashiCorp **Capabilities:** - Terraform Registry API integration (providers, modules, policies) - HCP Terraform & Terraform Enterprise support - Workspace management (create, update, delete) - Variables, tags, and run management - Private registry access **Installation:** `docker run -i --rm hashicorp/terraform-mcp-server:0.2.3` **ahmedasmar/devops-claude-skills - IaC Terraform** **URL:** https://claude-plugins.dev/skills/@ahmedasmar/devops-claude-skills/skills Creating and validating Terraform configurations, module development, state management, Terragrunt patterns, terraform-docs auto-generation **Pulumi Server** (Official) **URL:** https://github.com/pulumi/mcp-server Deploy and manage cloud infrastructure with infrastructure deployment and cloud automation **metaskills/skill-builder** **URL:** https://github.com/metaskills/skill-builder **Author:** AWS Serverless Hero Ken Collins | Natural language skill creation: "Help me create a skill for deploying AWS Lambda functions" ### Deployment Automation **mrgoonie/claudekit-skills - DevOps** **URL:** https://github.com/mrgoonie/claudekit-skills **Status:** 6+ months commercial development **DevOps Capabilities:** - Deploy to Cloudflare (Workers, R2, D1, KV, Pages, Durable Objects, Browser Rendering) - Docker containers - Google Cloud Platform (Compute Engine, GKE, Cloud Run, App Engine, Cloud Storage) - Deploy serverless functions to the edge - Set up CI/CD pipelines - Optimize cloud infrastructure costs **Vercel Server** (Official) **URL:** https://vercel.com/docs/mcp/vercel-mcp Access logs, search docs, manage projects and deployments for frontend deployment and serverless functions **Defang Server** **URL:** https://github.com/DefangLabs/defang Deploy projects to cloud seamlessly with platform automation ### Monitoring and Logging **zxkane/aws-skills - Operations Monitoring** CloudWatch integration (logs, metrics, alarms), CloudWatch Application Signals for distributed tracing, CloudTrail for audit logging, alert configuration and management **wshobson/agents - Observability** Observability engineering agents, distributed debugging skills, application performance monitoring, incident response workflows with multi-agent orchestration ### Security Scanning and DevSecOps **claude-code-security-review** (Official Anthropic) **URL:** https://github.com/anthropics/claude-code (feature) **Status:** Official Anthropic release (August 2025) | **License:** Team/Enterprise **Security Capabilities:** - Automated security scanning on pull requests - Detects 10 major vulnerability categories: SQL injection, XSS, authentication flaws, hardcoded secrets, weak encryption, authorization bypasses, business logic race conditions, CSRF, SSRF, known CVEs in dependencies - GitHub Actions integration for automated PR reviews - `/security-review` terminal command - Inline suggestions with remediation steps - Built-in false positive filtering - Diff-aware scanning (only changed files) - Language agnostic with semantic vulnerability detection **Snyk MCP Server** (Official) **URL:** https://snyk.io/articles/claude-desktop-and-snyk-mcp **Status:** Official Snyk (CLI v1.1298.0+) **Security Capabilities:** - 11 security scanning tools: Code scanning (SAST), open source dependency scanning, container scanning, infrastructure as code scanning, license compliance, authentication status - Auto-fix vulnerabilities via natural language - Scan-fix-rescan workflow - Real-time vulnerability detection - Enterprise DevSecOps integration **Free Tier:** 400 OS tests, 100 Code tests, 300 IaC tests, 100 Container tests monthly **Open Source:** Unlimited via Secure Developer Program **GitGuardian Server** (Official) **URL:** https://github.com/GitGuardian/gg-mcp Secret scanning with 500+ secret detectors and credential leak prevention **CrowdStrike Falcon Server** (Official) **URL:** https://github.com/CrowdStrike/falcon-mcp Detections, incidents, threat intelligence, vulnerabilities for security analysis and threat detection **Semgrep Server** **URL:** https://github.com/semgrep/semgrep/blob/develop/cli/src/semgrep/mcp/README.md Static code analysis and vulnerability scanning **SonarQube Server** (Official) **URL:** https://github.com/SonarSource/sonarqube-mcp-server Code snippet analysis, integration with SonarQube Server/Cloud for code quality and technical debt monitoring --- ## MCP SERVERS: Essential Tool Integrations The Model Context Protocol enables Claude to connect with external tools and services. Below are production-ready MCP servers organized by capability. ### Database Integration **PostgreSQL Server** **URL:** https://github.com/modelcontextprotocol/servers/tree/main/src/postgres | **License:** MIT Schema inspection, query capabilities, read/write operations **SQLite Server** **URL:** https://github.com/modelcontextprotocol/servers/tree/main/src/sqlite | **License:** MIT Database interaction and business intelligence **MySQL Server** **URL:** https://github.com/designcomputer/mysql_mcp_server Configurable access controls and schema inspection **MongoDB Servers** 1. https://github.com/kiliczsh/mcp-mongo-server 2. https://github.com/furey/mongodb-lens (Full featured) Query and analyze MongoDB collections **BigQuery Server** **URL:** https://github.com/LucasHild/mcp-server-bigquery Schema inspection and SQL queries for data warehouse querying **Redis Server** (Official) **URL:** https://github.com/redis/mcp-redis Key-value store operations and data management **DuckDB Server** **URL:** https://github.com/ktanaka101/mcp-server-duckdb Schema inspection, query capabilities, large-scale data analysis **Apache Doris Server** (Official) **URL:** https://github.com/apache/doris-mcp-server MPP-based real-time data warehouse queries ### Browser Automation and Testing **Playwright Server** (Official Microsoft) **URL:** https://github.com/microsoft/playwright-mcp Browser automation, testing, web scraping for E2E testing **Puppeteer Server** **URL:** https://github.com/modelcontextprotocol/servers/tree/main/src/puppeteer | **License:** MIT Browser automation, web scraping, data extraction ### API Development and Testing **Postman API Server** (Official) **URL:** https://github.com/postmanlabs/postman-api-mcp Manage Postman resources using Postman API for API testing and collection management **OpenAPI Schema Explorer** **URL:** https://github.com/kadykov/mcp-openapi-schema-explorer Token-efficient access to OpenAPI/Swagger specs for API schema exploration ### Search and Web Scraping **Brave Search Server** (Official) **URL:** https://github.com/brave/brave-search-mcp-server Web and local search using Brave's Search API **Exa Search Server** (Official) **URL:** https://github.com/exa-labs/exa-mcp-server AI-powered search engine integration for semantic search **Tavily Server** **URL:** https://github.com/Tomatio13/mcp-server-tavily Search + extract for AI agents and research automation **Firecrawl Server** (Official) **URL:** https://github.com/firecrawl/firecrawl-mcp-server Web data extraction and scraping **Apify Actors Server** (Official) **URL:** https://github.com/apify/apify-mcp-server 6,000+ pre-built cloud tools for data extraction and web scraping at scale ### Documentation and Knowledge **Context7 Server** Up-to-date, version-specific documentation for coding to reduce AI hallucinations **Microsoft Learn Docs Server** (Official) **URL:** https://github.com/microsoftdocs/mcp Access to Microsoft's official documentation for technical documentation retrieval **Obsidian Servers** 1. https://github.com/MarkusPfundstein/mcp-obsidian 2. https://github.com/calclavia/mcp-obsidian Personal knowledge base access and note management ### Collaboration and Project Management **Linear Server** **URL:** https://github.com/jerhadf/linear-mcp-server Issue tracking and project management **Jira Server** **URL:** https://github.com/tom28881/mcp-jira-server 20+ tools for issue CRUD, sprint management, comments, attachments for agile project management **Atlassian Server** (Official) **URL:** https://www.atlassian.com/platform/remote-mcp-server Jira and Confluence integration for work item management and documentation access **Notion Servers** 1. https://github.com/danhilse/notion_mcp 2. https://github.com/suekou/mcp-notion-server Todo lists, notes, database management, knowledge base access **Slack Server** **URL:** https://github.com/korotovsky/slack-mcp-server Most powerful MCP Slack Server with Stdio and SSE transports for team communication ### Multi-Tool Aggregators **Composio** **URL:** https://docs.composio.dev/docs/mcp-overview Connect to 100+ tools with zero setup and built-in auth **Rube** (by Composio) **URL:** https://rube.composio.dev Connect to 500+ apps (Gmail, Slack, GitHub, Notion) with unified integration **Zapier Server** (Official) **URL:** https://zapier.com/mcp Connect to 8,000 apps instantly for workflow automation **Pipedream Server** (Official) **URL:** https://github.com/PipedreamHQ/pipedream/tree/master/modelcontextprotocol 2,500 APIs with 8,000+ prebuilt tools for API integration and workflow automation --- ## Quality Indicators and Selection Criteria ### ⭐⭐⭐⭐⭐ Highest Quality (Official & Well-Maintained) - Official implementations by Anthropic, GitHub, Microsoft, AWS, HashiCorp, etc. - Active maintenance with regular updates - Comprehensive documentation - High GitHub stars (1000+) - Production-ready with security considerations **Examples:** anthropics/skills, GitHub MCP Server, Azure MCP Server, Terraform MCP Server, Snyk MCP ### ⭐⭐⭐⭐ High Quality (Community with Strong Support) - Well-documented community projects - Active development with multiple contributors - Good test coverage - Moderate GitHub stars (100-1000) **Examples:** obra/superpowers, alirezarezvani/claude-skills, travisvn/awesome-claude-skills ### ⭐⭐⭐ Good Quality (Functional & Maintained) - Working implementations - Basic documentation - Some maintenance activity - Smaller community **Examples:** Individual specialized skills, community MCP servers --- ## Installation Methods ### Claude.ai (Web Interface) 1. Navigate to Settings > Capabilities 2. Enable "Code execution and file creation" 3. Toggle on desired skills or upload custom skills (ZIP format) ### Claude Code (Terminal) ```bash # Add marketplace /plugin marketplace add anthropics/skills /plugin marketplace add obra/superpowers-marketplace # Install specific skills /plugin install document-skills@anthropic-agent-skills /plugin install superpowers@superpowers-marketplace # Manual installation cd ~/.claude/skills git clone [skill-repository-url] ``` ### Claude API Skills accessible via `/v1/skills` API endpoint: ```python import anthropic client = anthropic.Anthropic(api_key="your-api-key") response = client.messages.create( model="claude-3-5-sonnet-20241022", skills=["skill-id"], messages=[{"role": "user", "content": "prompt"}] ) ``` ### MCP Server Configuration Edit `claude_desktop_config.json`: ```json { "mcpServers": { "server-name": { "command": "npx", "args": ["-y", "package-name"], "env": { "API_KEY": "your-key" } } } } ``` --- ## Licensing Summary **Most Common Open Source Licenses:** - **MIT License:** Most community skills and MCP servers (highly permissive) - **Apache 2.0:** Official Anthropic example skills, many enterprise projects - **BSD-3-Clause:** Some community contributions - **Open Source (Various):** Individual projects with clear attribution **Note on Document Skills:** Anthropic's document skills (docx, pdf, pptx, xlsx) are source-available for reference but not open source. They ship pre-included with Claude and are primarily intended as reference examples. --- ## Essential Resources ### Official Documentation - **MCP Specification:** https://modelcontextprotocol.io - **Anthropic Skills Blog:** https://www.anthropic.com/news/skills - **Claude Documentation:** https://docs.anthropic.com - **Anthropic Academy:** https://anthropic.skilljar.com (Free training courses) ### Community Resources - **Awesome MCP Servers:** https://github.com/appcypher/awesome-mcp-servers (380+ servers) - **MCP Servers Directory:** https://mcpservers.org - **Best of MCP:** https://github.com/tolkonepiu/best-of-mcp-servers - **Skills Marketplace:** https://skillsmp.com (13,000+ skills indexed) ### Package Managers - **MCPM (CLI):** https://github.com/pathintegral-institute/mcpm.sh - **mcp-get:** https://github.com/michaellatman/mcp-get --- ## Conclusion The Claude Code skills ecosystem has rapidly evolved into a comprehensive, production-ready toolkit with: **Coverage:** - **Official Anthropic:** Production-grade document skills, MCP infrastructure, comprehensive SDKs - **Community Collections:** 10+ major repositories, 13,000+ indexed skills - **MCP Servers:** 200+ production-ready integrations for tools and services - **Languages:** Comprehensive support for Python, TypeScript, JavaScript, Go, Rust, Java, and more - **DevOps:** Complete CI/CD, cloud platforms, security scanning, infrastructure automation **Key Strengths:** - Progressive disclosure architecture (efficient token usage) - Freely available open source content (MIT/Apache 2.0) - Active community with rapid innovation - Official support from major companies (GitHub, Microsoft, AWS, HashiCorp) - Production-ready quality with comprehensive documentation **Recommended Starting Points:** 1. **Official:** anthropics/skills for production-grade examples 2. **Community:** obra/superpowers for battle-tested development workflows 3. **Comprehensive:** travisvn/awesome-claude-skills for overview 4. **Enterprise:** alirezarezvani/claude-skills for production teams 5. **Integration:** GitHub MCP Server, AWS/Azure cloud skills All resources documented here are freely available and maintained by active communities, providing a solid foundation for building comprehensive Claude Code skill collections across all development domains.