# Official agent skills

> Official means the skill is published by the vendor itself: Anthropic's own repositories, organizations listed as official on skills.sh, or GitHub organizations with a verified domain. The most starred are Frontend Design, Skill Creator and Webapp Testing.

Updated Oct 7, 2026.

- [Frontend Design](https://appsgit.com/skills/anthropics-frontend-design): Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. (179,945 stars, Apache-2.0, official)
- [Skill Creator](https://appsgit.com/skills/anthropics-skill-creator): Create new skills, modify and improve existing skills, and measure skill performance. (179,945 stars, Apache-2.0, official)
- [Webapp Testing](https://appsgit.com/skills/anthropics-webapp-testing): Toolkit for interacting with and testing local web applications using Playwright. (179,945 stars, Apache-2.0, official)
- [MCP Builder](https://appsgit.com/skills/anthropics-mcp-builder): Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. (179,945 stars, Apache-2.0, official)
- [Canvas Design](https://appsgit.com/skills/anthropics-canvas-design): Create beautiful visual art in .png and .pdf documents using design philosophy. (179,945 stars, Apache-2.0, official)
- [Web Artifacts Builder](https://appsgit.com/skills/anthropics-web-artifacts-builder): Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). (179,945 stars, Apache-2.0, official)
- [Brand Guidelines](https://appsgit.com/skills/anthropics-brand-guidelines): Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. (179,945 stars, Apache-2.0, official)
- [Slack Gif Creator](https://appsgit.com/skills/anthropics-slack-gif-creator): Knowledge and utilities for creating animated GIFs optimized for Slack. (179,945 stars, Apache-2.0, official)
- [Claude API](https://appsgit.com/skills/anthropics-claude-api): Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. (179,945 stars, Apache-2.0, official, needs API key)
- [Next Bundle Optimizer](https://appsgit.com/skills/vercel-next-bundle-optimizer): Audit and reduce Next.js browser initial-load work. (143,231 stars, MIT, official)
- [Next Cache Components Adoption](https://appsgit.com/skills/vercel-next-cache-components-adoption): Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. (143,231 stars, MIT, official)
- [Next Cache Components Optimizer](https://appsgit.com/skills/vercel-next-cache-components-optimizer): Optimize the meaningful UI available immediately from a Next.js route on an initial load (hard navigation) or named client-side navigation (soft navigation). (143,231 stars, MIT, official)
- [Next Dev Loop](https://appsgit.com/skills/vercel-next-dev-loop): Verify Next.js runtime behavior after editing app code. (143,231 stars, MIT, official)
- [Next Partial Prefetching Adoption](https://appsgit.com/skills/vercel-next-partial-prefetching-adoption): Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. (143,231 stars, MIT, official)
- [Next Partial Prefetching Optimizer](https://appsgit.com/skills/vercel-next-partial-prefetching-optimizer): Optimize what selected Next.js client navigations include before the click under Partial Prefetching. (143,231 stars, MIT, official)
- [Browser Use](https://appsgit.com/skills/browser-use): Direct browser control via CDP for web interaction: automation, scraping, testing, screenshots, and site/app work. (117,307 stars, MIT, official, needs API key)
- [Cloud](https://appsgit.com/skills/browser-use-cloud): Documentation reference for using Browser Use Cloud — the hosted API and SDK for browser automation. (117,307 stars, MIT, official, needs API key)
- [Open Source](https://appsgit.com/skills/browser-use-open-source): Documentation reference for writing Python code using the browser-use open-source library. (117,307 stars, MIT, official, needs API key)
- [QA](https://appsgit.com/skills/browser-use-qa): QA-test a website or web app and return a 1-5 quality score (5 = flawless, 1 = broken) with evidence. (117,307 stars, MIT, official, needs API key)
- [X402](https://appsgit.com/skills/browser-use-x402): Set up Browser Use Cloud payments with x402 — pay per request from a crypto wallet (USDC on Base mainnet), no signup or API key. (117,307 stars, MIT, official, needs API key)
- [Antigravity Support](https://appsgit.com/skills/google-gemini-antigravity-support): Use when the user asks questions, seeks help, or requests instructions related to installing, setting up, or migrating to Antigravity CLI. (107,240 stars, Apache-2.0, official)
- [Computer Use](https://appsgit.com/skills/stablyai-computer-use): Drives the GUI of a visible local app window through orca computer: accessibility tree, clicks, typing, menus, dialogs, and screenshots in native apps and external browser windows (Chrome, Edge… (86,634 stars, MIT, official)
- [Orca Emulator](https://appsgit.com/skills/stablyai-orca-emulator): iOS Simulator control from inside Orca, with the live device view in Orca's emulator pane. (86,634 stars, MIT, official)
- [Orca Emulator Android](https://appsgit.com/skills/stablyai-orca-emulator-android): Android device and emulator control from inside Orca over adb, with the live device view in Orca's emulator pane. (86,634 stars, MIT, official)
- [Orca Per Workspace Env](https://appsgit.com/skills/stablyai-orca-per-workspace-env): Set up, review, debug, or validate an Orca per-workspace environment recipe: the on-demand, disposable runtime (cloud sandbox, VM, SSH host, or local container) Orca creates fresh for each workspace. (86,634 stars, MIT, official)
- [Artifacts Builder](https://appsgit.com/skills/composiohq-artifacts-builder): Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). (76,615 stars, Apache-2.0, official)
- [Slack Gif Creator](https://appsgit.com/skills/composiohq-slack-gif-creator): Toolkit for creating animated GIFs optimized for Slack, with validators for size constraints and composable animation primitives. (76,615 stars, Apache-2.0, official)
- [Analyzing Financial Statements](https://appsgit.com/skills/anthropics-analyzing-financial-statements): This skill calculates key financial ratios and metrics from financial statement data for investment analysis. (53,242 stars, MIT, official)
- [Applying Brand Guidelines](https://appsgit.com/skills/anthropics-applying-brand-guidelines): This skill applies consistent corporate branding and styling to all generated documents including colors, fonts, layouts, and messaging. (53,242 stars, MIT, official)
- [Creating Financial Models](https://appsgit.com/skills/anthropics-creating-financial-models): This skill provides an advanced financial modeling suite with DCF analysis, sensitivity testing, Monte Carlo simulations, and scenario planning for investment decisions. (53,242 stars, MIT, official)
- [Agent Browser](https://appsgit.com/skills/vercel-labs-agent-browser): Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web… (43,583 stars, Apache-2.0, official)
- [Agentcore](https://appsgit.com/skills/vercel-labs-agentcore): Run agent-browser on AWS Bedrock AgentCore cloud browsers. (43,583 stars, Apache-2.0, official, needs API key)
- [Core](https://appsgit.com/skills/vercel-labs-core): Core agent-browser usage guide. Read this before running any agent-browser commands. (43,583 stars, Apache-2.0, official)
- [Derive Client](https://appsgit.com/skills/vercel-labs-derive-client): Reverse-engineer a website's internal API by recording browser traffic into a HAR file, then generate a standalone client or CLI that calls the endpoints directly, with no browser needed after the… (43,583 stars, Apache-2.0, official)
- [Dogfood](https://appsgit.com/skills/vercel-labs-dogfood): Systematically explore and test a web application to find bugs, UX issues, and other problems. (43,583 stars, Apache-2.0, official)
- [Protected Vercel Deployments](https://appsgit.com/skills/vercel-labs-protected-vercel-deployments): Access and test Vercel deployments protected by Vercel Authentication, SSO, or Deployment Protection with agent-browser. (43,583 stars, Apache-2.0, official, needs API key)
- [Slack](https://appsgit.com/skills/vercel-labs-slack): Interact with Slack workspaces using browser automation. (43,583 stars, Apache-2.0, official)
- [GitHub Issues](https://appsgit.com/skills/github-issues): Create, update, and manage GitHub issues using MCP tools. (39,749 stars, MIT, official)
- [Create Architectural Decision Record](https://appsgit.com/skills/github-create-architectural-decision-record): Create an Architectural Decision Record (ADR) document for AI-optimized decision documentation. (39,749 stars, MIT, official)
- [Go MCP Server Generator](https://appsgit.com/skills/github-go-mcp-server-generator): Generate a complete Go MCP server project with proper structure, dependencies, and implementation using the official github.com/modelcontextprotocol/go-sdk. (39,749 stars, MIT, official)
- [Openapi To Application Code](https://appsgit.com/skills/github-openapi-to-application-code): Generate a complete, production-ready application from an OpenAPI specification. (39,749 stars, MIT, official)
- [Refactor](https://appsgit.com/skills/github-refactor): Surgical code refactoring to improve maintainability without changing behavior. (39,749 stars, MIT, official)
- [Agent Owasp Compliance](https://appsgit.com/skills/github-agent-owasp-compliance): Check any AI agent codebase against the OWASP Agentic Security Initiative (ASI) Top 10 risks. (39,749 stars, MIT, official)
- [Agentic Eval](https://appsgit.com/skills/github-agentic-eval): Patterns and techniques for evaluating and improving AI agent outputs. (39,749 stars, MIT, official)
- [Build MCP App](https://appsgit.com/skills/anthropics-build-mcp-app): This skill should be used when the user wants to build an "MCP app", add "interactive UI" or "widgets" to an MCP server, "render components in chat", build "MCP UI resources", make a tool that shows… (37,478 stars, Apache-2.0, official)
- [Build MCP Server](https://appsgit.com/skills/anthropics-build-mcp-server): This skill should be used when the user asks to "build an MCP server", "create an MCP", "make an MCP integration", "wrap an API for Claude", "expose tools to Claude", "make an MCP app", or discusses… (37,478 stars, Apache-2.0, official)
- [Build Mcpb](https://appsgit.com/skills/anthropics-build-mcpb): This skill should be used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".mcpb files", mentions… (37,478 stars, Apache-2.0, official)
- [Claude Automation Recommender](https://appsgit.com/skills/anthropics-claude-automation-recommender): Analyze a codebase and recommend Claude Code automations (hooks, subagents, skills, plugins, MCP servers). (37,478 stars, Apache-2.0, official)

---

Canonical page: https://appsgit.com/skills/official
Source: appsgit (https://appsgit.com), the app store for github. Data from the GitHub API, refreshed nightly.
Machine access: JSON API https://appsgit.com/api/v1/apps (OpenAPI: https://appsgit.com/openapi.json), MCP server https://mcp.appsgit.com/mcp, full index https://appsgit.com/llms-full.txt.