Skills, MCP servers and plugins that work with VS Code

An agent-harness optimization system covering skills, memory, security and research-first workflows for Claude Code and other agents.

A /graphify skill and CLI that maps a codebase, docs and PDFs into a queryable knowledge graph; code parsing runs locally via tree-sitter, per its README.

A large curated list of MCP servers.

Design skill for coding agents with commands such as polish, bolder, critique and audit to steer and review frontend UI; installs via npx for Claude Code, Cursor, Codex and others.

HeyGen's open-source framework that renders HTML, CSS and seekable animations to MP4 video, with agent skills and a Claude Code plugin.

An autonomous coding agent available as an IDE extension, CLI or SDK.

Reference repository of Claude Code practices for subagents, commands, skills, hooks, MCP, settings and memory, with example implementations.

Serves up-to-date library documentation to AI agents, including over MCP.

A library of agent skills for scientific research workflows.

Chrome DevTools for coding agents, exposed as an MCP server.

Local MCP server that indexes a codebase into a knowledge graph for code search, call tracing and architecture queries; written in C.

Microsoft's Playwright MCP server, which lets agents drive a browser.

Web app, desktop app and MCP server for creating and editing draw.io diagrams by chatting with an AI model; exports .drawio, .png or .svg.

Every's Compound Engineering plugin for Claude Code, Codex, Cursor and more.

MCP server giving AI assistants documentation, properties and operations for n8n workflow nodes, with optional workflow management via the n8n API.

MCP server that gives an agent terminal command execution, process control, file search and diff-based file editing on your machine.

AWS Labs' open-source MCP servers for AWS services.

Local, browser-based review surface where you annotate coding-agent plans, specs and code diffs and send the feedback back to the agent via hooks.

Exa's MCP server for web search and crawling.

designlang: CLI that extracts a website's design system into DTCG tokens, Tailwind, Figma variables and more, with an MCP server for coding agents.

Open-source Kubernetes UI in one binary (topology, Helm, GitOps, traffic, audits) with a built-in MCP server that lets AI agents inspect clusters.

GitHub's official MCP server for working with repositories, issues and pull requests from an agent.

Apify's MCP server that connects agents to Apify Store scrapers and crawlers for web and social data extraction.

OpenAI's lightweight coding agent that runs in your terminal.

Microsoft's open-source Model Context Protocol curriculum, with lessons and examples in .NET, Java, TypeScript, JavaScript, Rust and Python.

MCP server and Claude Code plugin that sandboxes tool output to save context and keeps session history in SQLite; source-available under Elastic License 2.0.

An MCP toolkit that gives agents semantic code retrieval and editing.

Firecrawl's MCP server for web scraping and search from Cursor, Claude and other clients.

Agent skills for drafting design specs with a context-holding agent and reviewing them with fresh subagents; per its README, not an official Google product.

Perplexity's MCP server for its API Platform, giving agents web search, reasoning and research tools; hosted remote or local.

Five Claude Code skills for academic research, paper drafting, simulated peer review and revision, with human confirmation gates; licensed CC BY-NC 4.0.

The .NET team's curated agent skills and plugins for .NET and C#: builds, MSBuild, NuGet, diagnostics, upgrades, MAUI, data access and AI.

A hand-picked collection of Claude Code resources: workflows, commands, tools and more.

An open-source coding agent from Continue.

An MCP server for the Neon Management API and Neon databases.

GitHub's community-contributed collection of Copilot custom agents, instructions, skills, hooks and plugins, also usable as a Copilot plugin marketplace.

Microsoft's catalog of official MCP server implementations, including servers for Azure and other Microsoft services.

Grafana's MCP server for querying dashboards, datasources, alerts and incidents in a Grafana instance from an agent.

Tavily's MCP server for search, extract, map and crawl.

Microsoft's local MCP server for Azure DevOps work items, repos, pipelines and wikis; the README recommends its hosted remote server.

Timescale's PostgreSQL docs search and best-practice skills for coding agents, offered as Agent Skills, a public MCP server and a Claude Code plugin.

Microsoft's agent plugin that bundles Azure skills with the Azure MCP Server and Foundry MCP, for GitHub Copilot, Claude Code and other hosts.

HashiCorp's Terraform MCP server for Terraform registry and workflow automation.

MongoDB's MCP server for connecting to MongoDB databases and Atlas clusters.

IBM's ContextForge: an open source registry and proxy that federates MCP, A2A and REST/gRPC APIs behind one endpoint with auth and observability.

Redis's MCP server, a natural-language interface for agents to manage and search data in Redis.

Docker's MCP CLI plugin and MCP Gateway for configuring and running MCP servers from the Docker MCP Catalog.

Brave's MCP server for the Brave Search API: web, local, image, video and news search plus AI summaries, over STDIO or HTTP.

Auth0's MCP server for managing a tenant's apps, Actions, logs and users from an agent; beta software per its README.

Heroku's MCP server for reading and managing Heroku apps, add-ons and resources via the Heroku CLI; early development per its README.

GitMCP: a free, open-source remote MCP server for any GitHub project.

A Claude Code guide covering workflows, hooks, skills and MCP servers, with templates and a stdio MCP server for querying it; guide licensed CC BY-SA 4.0.

The /llms.txt proposal: a file that gives language models and agents a clean summary of a website.