Quick answer

How to read the Claude Code package list

A package appears here when its source or distribution context declares a relationship with Claude Code. That declaration is useful for discovery, but it does not prove installation success, runtime behavior, task quality, or safety.

Start with the fixed release

Open the package record and confirm the exact release, publisher attribution, source URL, license, file inventory, and recorded content hash before following any install instructions.

Separate three evidence layers

Publisher declarations, SkillVetAI structural checks, and bounded runtime probes answer different questions. A structural pass only shows that required files and metadata match dated platform rules.

Review permissions before execution

Inspect requested filesystem, network, account, shell, and external-service access. Use a sandbox or test account first, and keep irreversible actions behind explicit human confirmation.

979catalog releases structurally assessed
840structure passed
0passed with warnings
139structural issues

This cross-platform assessment covers all public catalog releases, including packages whose source does not declare Claude Code. It parses SKILL.md and platform metadata against a dated specification snapshot and does not run the package in Claude Code.

Real package recordGitHubNo static findings

deploy-to-vercel

Deploy applications and websites to Vercel. Use when the user requests deployment actions like "deploy my app", "deploy and give me the link", "push this live", or "create a preview deployment".

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
DevOps, Cloud & ObservabilitySource recorded →
Real package recordGitHubNo static findings

vercel-cli-with-tokens

Deploy and manage projects on Vercel using token-based authentication. Use when working with Vercel CLI using access tokens rather than interactive login — e.g. "deploy to vercel", "set up vercel", "add environment variables to vercel".

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
DevOps, Cloud & ObservabilitySource recorded →
Real package recordGitHubNo static findings

vercel-composition-patterns

React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

vercel-optimize

Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and version-aware Vercel/framework docs. Trigger for Vercel bill reduction, slow or expensive routes, caching opportunities, Function Invocations, Build Minutes, Fast Data Transfer, Core Web Vitals, Bot Managem…

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
DevOps, Cloud & ObservabilitySource recorded →
Real package recordGitHubNo static findings

vercel-react-best-practices

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

vercel-react-native-skills

React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

vercel-react-view-transitions

Guide for implementing smooth, native-feeling animations using React's View Transition API (`<ViewTransition>` component, `addTransitionType`, and CSS view transition pseudo-elements). Use this skill whenever the user wants to add page transitions, animate route changes, create shared element animations, animate enter/exit of components, animate list reorder, implement directional (forward/back) navigation animations, or integrate view transitions in Next.js. Also use when the user mentions view transitions, `star…

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

web-design-guidelines

Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Enterprise FunctionsSource recorded →
Real package recordGitHubNo static findings

writing-guidelines

Review docs/prose for Writing Guidelines compliance. Use when asked to "review my docs", "check writing style", "audit prose", "review docs voice and tone", or "check this page against the writing handbook".

Publisher
Vercel Labs
Fixed release
git-b8caa260a420
OpenAI Codex · compatible unverifiedClaude Code · compatible unverifiedCursor · compatible unverified
Enterprise FunctionsSource recorded →
Real package recordGitHubNo static findings

algorithmic-art

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Agent Engineering, Security & GovernanceSource recorded →
Real package recordGitHubNo static findings

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. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Image & Visual DesignSource recorded →
Real package recordGitHubNo static findings

canvas-design

Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Image & Visual DesignSource recorded →
Real package recordGitHubNo static findings

claude-api

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude, Anthropic, Fable, Opus, Sonnet, Haiku, `anthropic`, `@anthropic-ai`, `claude-*`, `us.anthropic.*`, `[1m]`); the user asks about an LLM (pricing/model choice/limits/caching) — never answer from memory; OR the…

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Agent Engineering, Security & GovernanceSource recorded →
Real package recordGitHubNo static findings

doc-coauthoring

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Writing, Content & TranslationSource recorded →
Real package recordGitHubNo static findings

docx

Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files) or Word templates (.dotx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', '.dotx', or requests to produce professional documents with formatting like tables of contents, headings, page numbers, or letterheads. Also use when extracting or reorganizing content from .docx or .dotx files, inserting or replacing images in documents, performing find-and-replace in Word files, working wit…

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Documents, PDF & PresentationsSource recorded →
Real package recordGitHubNo static findings

frontend-design

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Image & Visual DesignSource recorded →
Real package recordGitHubNo static findings

mcp-builder

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

pdf

Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Documents, PDF & PresentationsSource recorded →
Real package recordGitHubNo static findings

pptx

Use this skill any time a .pptx or .potx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx or .potx file (even if the extracted content will be used elsewhere, like in an email or summary); editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates (.potx), layouts, speaker notes, or comments. Trigger whenever the user mentions "deck,…

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Documents, PDF & PresentationsSource recorded →
Real package recordGitHubNo static findings

skill-creator

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Agent Engineering, Security & GovernanceSource recorded →
Real package recordGitHubNo static findings

slack-gif-creator

Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Search, Research & KnowledgeSource recorded →
Real package recordGitHubNo static findings

theme-factory

Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Data, Spreadsheets & AnalyticsSource recorded →
Real package recordGitHubNo static findings

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). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

webapp-testing

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only
Software DevelopmentSource recorded →
Real package recordGitHubNo static findings

xlsx

Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like "the xlsx in my downloads")…

Publisher
Anthropic
Fixed release
git-f17010c9bb48
Claude Code · native officialClaude.ai · declared only