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.
Claude.ai Agent Skills
Records declared for Claude.ai or Anthropic-managed skill environments.
Quick answer
How to read the Claude.ai package list
A package appears here when its source or distribution context declares a relationship with Claude.ai. That declaration is useful for discovery, but it does not prove installation success, runtime behavior, task quality, or safety.
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.
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
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
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
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
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
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
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
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
Real package recordGitHubNo static findings
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
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
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
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
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
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
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
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