116 documented

Skills · plugins · MCP · rules114 official

Which agent do you use?

Pick your host to see what plugs into it. Every entry is documented from its official repository or docs, with install steps, permissions and limits.

Claude Code84 extensions OpenAI Codex14 extensions

Cursor32 extensions Windsurf14 extensions

Gemini CLI9 extensions

GitHub Copilot1 extensions Any MCP client46 extensions

Skill · 19Reusable instructions and scripts the agent loads for a taskAlgorithmic Art, brand-guidelines, Canvas Design… Plugin · 42Bundles of skills, commands, hooks and agentsAgent SDK Development Plugin, C# LSP, clangd LSP… MCP server · 49Connect the agent to tools, data and servicesApify MCP Server, Atlassian Rovo MCP Server, AWS API MCP Server… Rules & instructions · 6Project instructions the agent reads every sessionAGENTS.md, CLAUDE.md, Cursor Rules…

MCP servers for Claude Code and Cursor Claude Code plugins and marketplace Claude Code skills Cursor rules What is an MCP server? A plain explanation for 2026

95 extensions · Clear filters

Plugin Apache-2.0

pr-review-toolkit

by Anthropic

Six review agents: comments, tests, error handling, type design, code quality, simplification.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Plugin Apache-2.0

Project Artifact

by Anthropic

Builds and publishes a living tabbed status page for a multi-workstream project, refreshed to the same URL.

Does: 5 things
Install: 5 steps
Works with: Claude Code

Plugin Apache-2.0

Pyright LSP

by Anthropic

Python (Pyright) language server for Claude Code: code intelligence and diagnostics for .py files.

Does: 3 things
Install: 5 steps
Works with: Claude Code

Plugin Apache-2.0

ralph-loop

by Anthropic

Self-referential loops via a Stop hook: same prompt repeated until a completion promise.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Plugin Apache-2.0

Receipts

by Anthropic

Generates a local Claude Code impact report from your own session transcripts: what shipped, by project.

Does: 5 things
Install: 4 steps
Works with: Claude Code

Plugin Apache-2.0

Ruby LSP

by Anthropic

Ruby language server for Claude Code: code intelligence and diagnostics for .rb files.

Does: 3 things
Install: 4 steps
Works with: Claude Code

Plugin Apache-2.0

rust-analyzer LSP

by Anthropic

Rust language server for Claude Code: code intelligence and diagnostics for .rs files.

Does: 3 things
Install: 5 steps
Works with: Claude Code

Plugin Apache-2.0

security-guidance

by Anthropic

Security review for Claude-written code: pattern warnings, LLM diff review on Stop, agentic commit review.

Does: 4 things
Install: 4 steps
Works with: Claude Code

MCP server

Sentry MCP Server

by Sentry

Sentry's MCP service for coding agents: inspect errors, issues, traces and performance from Cursor, Claude Code and others.

Does: 5 things
Install: 4 steps
Works with: 3 hosts

Plugin Apache-2.0

Session Report

by Anthropic

Generates an explorable HTML report of Claude Code token, cache and subagent usage from local transcripts.

Does: 5 things
Install: 3 steps
Works with: Claude Code

MCP server ISC

Shopify Dev MCP

by Shopify

Shopify's local Dev MCP server: search Shopify docs and API schemas and validate GraphQL, Liquid and extension code.

Does: 5 things
Install: 5 steps
Works with: 4 hosts

Skill

skill-creator

by Anthropic

Create, edit and benchmark skills: draft, run test prompts, review results, and optimize descriptions for triggering.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Skill Apache-2.0

Slack GIF Creator

by Anthropic

Toolkit and guidance for making animated GIFs that meet Slack size limits, built with Python and PIL.

Does: 5 things
Install: 4 steps
Works with: Claude Code

MCP server Apache-2.0

Supabase MCP Server

by Supabase Community

Connect Supabase projects to AI assistants to manage tables, fetch config and query data.

Does: 5 things
Install: 4 steps
Works with: 3 hosts

Plugin Apache-2.0

Swift LSP (SourceKit-LSP)

by Anthropic

Swift (SourceKit-LSP) language server for Claude Code: code intelligence and diagnostics for .swift files.

Does: 3 things
Install: 5 steps
Works with: Claude Code

MCP server MIT

Tavily MCP Server

by Tavily

Tavily MCP server: real-time web search, page extraction, site mapping and crawling for AI agents.

Does: 5 things
Install: 5 steps
Works with: 3 hosts

Skill

theme-factory

by Anthropic

Apply one of 10 preset font/colour themes (or a generated one) to slides, docs, reports or HTML pages.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Plugin Apache-2.0

TypeScript LSP

by Anthropic

TypeScript/JavaScript language server for Claude Code: code intelligence and diagnostics for .ts files.

Does: 3 things
Install: 4 steps
Works with: Claude Code

MCP server

Vercel MCP

by Vercel

Vercel's official remote MCP server: search docs, manage projects and deployments, read logs and Web Analytics from your AI tool.

Does: 5 things
Install: 4 steps
Works with: 6 hosts

Skill Apache-2.0

Web Artifacts Builder

by Anthropic

Scripts and guidance to build multi-component React artifacts and bundle them into a single HTML file.

Does: 5 things
Install: 4 steps
Works with: Claude Code

Skill

webapp-testing

by Anthropic

Toolkit for testing local web apps with Playwright: verify frontend behaviour, debug UI, capture screenshots and logs.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Skill Proprietary (LICENSE.txt in skill folder

xlsx

by Anthropic

Open, create, edit and clean spreadsheets (.xlsx, .xlsm, .csv, .tsv) with formulas, formatting and charts.

Does: 3 things
Install: 4 steps
Works with: Claude Code

MCP server

Zapier MCP

by Zapier

Zapier-hosted MCP server that lets Claude, Cursor and other clients take actions across 9,000+ apps with managed auth.

Does: 5 things
Install: 5 steps
Works with: 3 hosts