Coding
MCP servers, skills and harness building blocks for AI-assisted coding: code review, debugging, refactoring and documentation.
- Skill Road
- Coding
Entries in this category
Published entries only. Guides are counted separately.
- Total catalog entries
- 187
- MCP servers
- 64
- Skills
- 100
- Guides
- 128
- Workflows
- 2
- Plugins
- 7
- Harness components
- 1
- AI assistants
- 13
Free Coding skills
Usable without license costs.
Agent Development
FreeOfficial Anthropic skill for structuring, triggering, prompting, and testing custom Claude Code agents.
Anthropic
Agentic Evaluation Patterns
FreeGitHub’s official Copilot skill for reflection, rubrics, and iterative quality evaluation of agent outputs.
GitHub
Anthropic Agent Skills
FreeAnthropic's official open-source skill collection: 18 ready-made Claude skills for documents, design, coding, and enterprise workflows, ready to install.
Anthropic
Azure Deployment Preflight
FreePreflights Bicep deployments with syntax validation, what-if analysis, and permission checks before execution.
GitHub
Azure DevOps CLI
FreeSupports Azure DevOps automation with Azure CLI, projects, repositories, pipelines, and boards.
GitHub
Azure Resource Visualizer
FreeExplores Azure resource groups and produces traceable Mermaid architecture diagrams.
GitHub
Azure Role Selector
FreeOfficial GitHub guidance for selecting least-privilege Azure roles with Azure MCP tools.
GitHub
Azure Static Web Apps Skill
FreeAssists your AI assistant in creating, configuring, and deploying Azure Static Web Apps.
GitHub
CLAUDE.md Improver
FreeAudits and improves CLAUDE.md project instructions for Claude Code.
Anthropic
Chrome DevTools
FreeOfficial GitHub skill for browser automation, debugging, and performance analysis with Chrome DevTools MCP.
GitHub
Claude Automation Recommender
FreeAnalyzes codebases and recommends tailored Claude Code automations.
Anthropic
Code Change Verification
FreeA required verification workflow for code, test, and build changes in the OpenAI Agents Python repository.
OpenAI
Command Development
FreeOfficial Anthropic skill for robust slash commands, arguments, frontmatter, and safer Claude Code workflows.
Anthropic
Configured Agent for Claude Code
FreeOfficial Anthropic skill for configurable plugin settings and local state.
Anthropic
Develop AI Functions Example
FreeOfficial Vercel skill for developing, validating, and structuring AI SDK examples.
Vercel
Example Skill
FreeAnthropic reference skill for understanding and creating Claude Code skills.
Anthropic
Excalidraw Diagram Generator
FreeGitHub skill for turning natural-language processes, relationships, and architectures into understandable Excalidraw diagrams.
GitHub
ExecuTorch Export
FreeOfficial PyTorch guidance for exporting and lowering models into the ExecuTorch format.
PyTorch
Final Release Review
FreeA source-grounded release check for openai-agents-python with a clear ship-or-block decision.
OpenAI
Frontend Slides
FreeCreates visually developed HTML presentations and supports reviewed conversion from PowerPoint files.
Zara Zhang
GitHub Copilot SDK
FreeOfficial agent skill for embedding Copilot workflows in Python, TypeScript, Go, and .NET applications.
GitHub
GitHub Issues
FreeOfficial GitHub guidance for creating, maintaining, searching, and structuring issue workflows with MCP tools.
GitHub
Address GitHub PR Comments
FreeOfficial OpenAI workflow for reviewing and selectively addressing comments on the open GitHub pull request.
OpenAI
Home Assistant Dashboard Designer
FreeCodex skill for structured Lovelace dashboards, YAML refactoring, and careful validation.
CCOSTAN
Hook Development
FreeOfficial Anthropic skill for event-driven Claude Code hooks, validation, and safer plugin workflows.
Anthropic
Jupyter Notebook
FreeOfficial OpenAI skill for reproducible Jupyter notebooks covering experiments, analysis, and tutorials.
OpenAI
Legacy Circuit Mockups
FreeCreate breadboard circuits and retro-computer diagrams as visual HTML5 Canvas mockups.
GitHub
MCP Integration
FreeOfficial Anthropic skill for integrating MCP servers safely into Claude Code plugins.
Anthropic
MCP-CLI
FreeOfficial GitHub skill for controlled use of MCP servers and tools from the command line.
GitHub
Make Repo Contribution
FreeGuidance for safe and traceable contributions to GitHub repositories.
GitHub
Markdown to HTML
FreeTurns Markdown into HTML with suitable tools, security checks, and output formats.
GitHub
Mermaid Diagrams
FreeInstallable guidance for version-controlled Mermaid diagrams in architecture, code, and data modeling.
davila7
Microsoft Code Reference
FreeSource-oriented research for Microsoft APIs, Azure SDKs, .NET libraries, and verified code samples.
GitHub
Microsoft Docs
FreeOfficial GitHub skill for precise research across Microsoft documentation.
GitHub
NVIDIA Agent Skills
FreeNVIDIA's official, cryptographically signed skill collection: 100+ agent skills for Physical AI, robotics, simulation, CUDA-X libraries, and RAG, installable in Claude Code, Codex, and other coding agents.
NVIDIA
NuGet Manager
FreeAn official agent skill for disciplined NuGet package maintenance in .NET projects and solutions.
GitHub
OpenAI Docs Sync
FreeOfficial OpenAI skill for comparing SDK implementation, configuration, and English documentation.
OpenAI
OpenAI Docs
FreeOfficial skill for current OpenAI documentation research with sources and clear product boundaries.
OpenAI
OpenAI Figma Implement Design
FreeOfficial OpenAI workflow for translating Figma designs into production-ready application code with visual fidelity.
OpenAI
OpenAI Figma Skill
FreeOfficial OpenAI guidance for Figma-driven design-to-code work with the Figma MCP server.
OpenAI
OpenAI Imagegen
FreeOfficial OpenAI skill for image generation, editing, variants, and transparent raster assets.
OpenAI
OpenAI Knowledge
FreeSource-oriented research in current official OpenAI documentation for integration questions.
OpenAI
OpenAI Speech Skill
FreeOfficial OpenAI skill for text-to-speech, voiceover, accessibility reads, and speech batches.
OpenAI
OpenAI Transcribe Skill
FreeOfficial OpenAI skill for audio-file transcription, speaker separation, and reviewable text output.
OpenAI
PR Draft Summary
FreeCreates a copy-ready pull request title, draft description, and branch suggestion after eligible changes.
OpenAI
PRD
FreeCreates structured Product Requirements Documents for software and AI-powered features.
GitHub
Penpot UI/UX Design
FreeGitHub guidance for professional, accessible UI/UX designs in Penpot using MCP tools.
GitHub
PlantUML ASCII
FreeCreate terminal-friendly ASCII or Unicode output from PlantUML diagrams.
GitHub
Playground Builder
FreeBuilds interactive self-contained HTML playgrounds with a live preview and copyable prompt.
Anthropic
Playwright CLI Skill
FreeOpenAI’s official workflow for real-browser automation through the Playwright CLI.
OpenAI
Plugin Settings for Claude Code
FreeOfficial Anthropic skill for project-specific plugin configuration and state files with YAML frontmatter.
Anthropic
Plugin Structure for Claude Code
FreeOfficial Anthropic skill for Claude Code plugin layout, manifests, components, and automatic discovery.
Anthropic
Power BI Semantic Modeling
FreeOfficial GitHub Copilot skill for robust Power BI semantic models, DAX, relationships, and performance.
GitHub
PyTorch Add Uint Support
FreeOfficial PyTorch skill for systematically extending operators with unsigned integer types.
PyTorch
PyTorch Issue Triage
FreeStructures PyTorch GitHub issues, routes them, applies allowed labels, and records triage decisions consistently.
PyTorch
PyTorch Pull Request Review
FreeReviews PyTorch pull requests for code quality, test coverage, security, and backward compatibility.
PyTorch
Pyrefly Type Coverage
FreeOfficial PyTorch skill for incrementally migrating Python files to stricter Pyrefly type checking.
PyTorch
React TypeScript Development
FreeReusable Claude Code skill for type-safe React components, hooks, Server Components, and routing.
davila7
Refactor Skill
FreeAssists your AI assistant in surgical code refactorings to improve maintainability.
GitHub
SQL Queries
FreeOfficial Anthropic skill for correct, performant SQL across multiple database dialects.
Anthropic
ScoutQA Testing
FreeGitHub skill for AI-powered exploratory web testing with the ScoutQA command line.
GitHub
Security Best Practices
FreeReviews security requirements in Python, JavaScript, TypeScript, and Go and recommends secure defaults.
OpenAI
Security Ownership Map
FreeMaps security ownership, bus factor, and sensitive code areas from Git history.
OpenAI
Security Threat Model
FreeCreates evidence-grounded, actionable threat models for code repositories and selected project paths.
OpenAI
Sentry
FreeRead-only workflows for querying Sentry through the official command line.
OpenAI
Skill Creator
FreeOfficial OpenAI Codex skill for creating and updating focused agent skills.
OpenAI
Skill Development
FreeOfficial Anthropic guidance for structuring, resourcing, progressively disclosing, and validating Claude Code skills.
Anthropic
Skill Installer
FreeOfficial Codex skill for listing and installing skills from curated OpenAI sources or GitHub repositories.
OpenAI
Skill Writer
FreeOfficial PyTorch guidance for planning, structuring, and validating Agent Skills for Claude Code.
PyTorch
Smithery CLI Skill
FreeAgent skill for discovering, configuring, and invoking MCP servers and tools directly through the Smithery command line.
Smithery
Snowflake Semantic Views
FreeOfficial GitHub Copilot skill for creating, altering, and validating Snowflake semantic views with Snowflake CLI.
GitHub
TDD
FreeTest-driven development with behavior-focused tests, clear seams, and small red-green-refactor steps.
Matt Pocock
Tailwind Design System
FreeWorking guidance for Tailwind CSS v4, design tokens, component variants, and responsive interfaces.
wshobson/agents
Test Coverage Improver
FreeA measurable workflow for coverage gaps in the OpenAI Agents Python repository.
OpenAI
Turborepo
FreeVercel skill for tasks, caching, and dependencies in JavaScript and TypeScript monorepos.
Vercel
Update Docs
FreeVercel skill for systematically reviewing and updating Next.js documentation.
Vercel
Upstash Agent Skills
FreeUpstash's official open-source skill collection: SDK guides for Redis, QStash, Workflow, Vector, Search, and Box — usable without any credentials.
Upstash
VS Code Extension Commands
FreeGuidance for clearly named, visible, and localizable commands in Visual Studio Code extensions.
GitHub
VS Code Extension Localization
FreeGuidance for complete localization of Visual Studio Code extensions.
GitHub
Vercel AI Elements
FreeOfficial skill for production-ready React building blocks and a registry for AI chat interfaces.
Vercel
Vercel AI SDK
FreeOfficial skill for building AI applications and agents with the TypeScript AI SDK.
Vercel
Vercel Streamdown
FreeOfficial skill for streaming-optimized React Markdown rendering in AI applications.
Vercel
Vulnerability Scanner
FreeStructured security analysis with OWASP guidance, attack-surface mapping, and risk-based prioritization.
davila7
Web Application Testing
FreeGitHub skill for Playwright-based testing, debugging, and documentation of local web applications.
GitHub
Web Design Reviewer
FreeGitHub skill for visual web design reviews, responsive quality, and accessible UI improvements.
GitHub
Web Interface Guidelines
FreeVercel’s official agent skill for systematic reviews of web interfaces.
Vercel
Web Performance Audit
FreeOfficial Cloudflare skill for measurable web performance audits with Chrome DevTools MCP.
Cloudflare
Writing Hookify Rules
FreeWrites Hookify rules for Claude Code with suitable events, patterns, conditions, and warnings.
Anthropic
aoti-debug
FreeOfficial PyTorch guidance for systematic debugging of AOTInductor failures.
PyTorch
at-dispatch-v2
FreeOfficial PyTorch guidance for converting AT_DISPATCH macros to AT_DISPATCH_V2.
PyTorch
cloudflare-browser
FreeCloudflare skill for browser automation through Browser Rendering and CDP.
Cloudflare
docstring
FreeOfficial PyTorch guidance for precise, consistent, and verifiable docstrings.
PyTorch
durable-objects
FreeOfficial Cloudflare skill for stateful coordination with Durable Objects.
Cloudflare
gh-fix-ci
FreeOpenAI Codex skill for inspecting failed GitHub Actions checks and preparing safe fixes.
OpenAI
image-manipulation-image-magick
FreeOfficial GitHub Copilot skill for image dimensions, formats, metadata, thumbnails, and batch processing with ImageMagick.
GitHub
image-to-code
FreeAn image-first website-design workflow: generate references, analyze them closely, then implement the frontend.
Leon Lin
list-npm-package-content
FreeInspects the actual contents of an npm tarball before publishing or debugging.
Vercel
metal-kernel
FreeOfficial PyTorch guidance for native Metal kernels and MPS operators on Apple Silicon.
PyTorch
sandbox-sdk
FreeOfficial Cloudflare skill for secure, isolated code execution with Sandbox SDK.
Cloudflare
yeet
FreeOfficial OpenAI skill for explicitly requested GitHub pull request flows using the GitHub CLI.
OpenAI