Agents & Skills
Claude Skills
A Claude Skill is a packaged set of instructions that teaches Claude how to do one kind of task in a consistent way, such as following your report format or a review checklist. A skill can also include reference files and helper scripts. Claude uses a skill when a task calls for it.
Instructions alone cannot reach anything beyond the conversation, but scripts that come with a skill may run in the environment where Claude is working. So read what a skill contains and what that environment can reach. Each listing below says what the maintainer states and links to the official sources.
Anavem lists what each entry asks for and what its official sources say. We do not label anything safe or unsafe: that decision depends on what you plan to use it for.
Claude Skills
Newest verification first. Order is editorial and never depends on commercial relationships.
Last30Days skill
MIT-licensed research skill that gathers recent discussion and engagement signals from social, community, prediction-market, GitHub and web sources.
By Matt Van Horn (mvanhorn on GitHub) · Verified Oct 3, 2026
Claude SEO skill
MIT-licensed SEO plugin with a hub skill, specialist sub-skills and agents for technical SEO, content, schema, GEO, local and international analysis.
By AgriciDaniel · Verified Oct 3, 2026
Understand Anything skill
MIT-licensed codebase analysis skill that scans project structure and builds an interactive knowledge graph for architecture, components and relationships.
By Egonex AI · Verified Oct 3, 2026
Humanizer skill
MIT-licensed editing skill that rewrites AI-sounding prose for human readers while aiming to preserve the original meaning and factual content.
By Siqi Chen (blader on GitHub) · Verified Oct 3, 2026
Taste Skill
MIT-licensed frontend design skill that asks coding agents to choose a deliberate visual direction, audit redesigns first and run a preflight review.
By Leonxlnx · Verified Oct 3, 2026
UI UX Pro Max skill
Open-source UI and UX skill with searchable local design data, stack-specific guidance, design-system generation and validation scripts.
By Next Level Builder (nextlevelbuilder on GitHub) · Verified Oct 3, 2026
Discernment Nudge skill (Anthropic)
Anthropic skill that can append two or three targeted follow-up questions to help users check facts, assumptions and missing context before acting.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Academy Guide skill (Anthropic)
Anthropic skill for matching questions about learning Claude products to relevant Claude Academy courses, tutorials and use cases.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Claude API skill (Anthropic)
Anthropic reference skill for current Claude API and SDK work, including models, streaming, tools, MCP, caching, token counting, migrations and managed agents.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Web Artifacts Builder skill (Anthropic)
Anthropic skill for building complex Claude.ai HTML artifacts with React, Tailwind CSS, shadcn/ui, state management and routing.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Theme Factory skill (Anthropic)
Anthropic skill for applying one of ten bundled color-and-font themes, or a newly generated theme, to slides, documents, reports and HTML artifacts.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Slack GIF Creator skill (Anthropic)
Anthropic skill with Python utilities, animation concepts and validation checks for creating animated GIF files optimized for Slack.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Internal Comms skill (Anthropic)
Anthropic skill with example formats for status reports, leadership updates, company newsletters, FAQs, incident reports and project updates.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Frontend Design skill (Anthropic)
Anthropic skill for choosing a deliberate visual direction, typography and interface treatment when building or reshaping frontend UI.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Doc Coauthoring skill (Anthropic)
Anthropic skill for a structured coauthoring process covering context transfer, iterative drafting and reader-focused document verification.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Canvas Design skill (Anthropic)
Anthropic skill for producing original static visual designs as PNG and PDF files, with a bundled collection of licensed font files.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Brand Guidelines skill (Anthropic)
Anthropic skill that applies Anthropic’s documented colors, typography and visual formatting rules to generated artifacts.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Algorithmic Art skill (Anthropic)
Anthropic skill for creating original generative art with p5.js, seeded randomness, parameter exploration, flow fields and particle systems.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
PPTX skill (Anthropic)
Anthropic skill for creating, reading, editing, combining and validating PowerPoint presentations, templates, layouts, notes and comments.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
XLSX skill (Anthropic)
Anthropic skill for creating, reading, editing, cleaning and validating spreadsheet files, including XLSX, XLSM, XLTX, CSV and TSV deliverables.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Skill Creator skill (Anthropic)
Anthropic skill that guides drafting a new skill, running test prompts against it, reviewing results in a browser viewer, benchmarking, optimizing the skill description and packaging a .skill file.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
Webapp Testing skill (Anthropic)
Anthropic skill for testing local web applications with Python Playwright: capture screenshots, inspect the rendered page, read browser console logs and drive the UI. It includes a helper script that starts and stops dev servers.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
MCP Builder skill (Anthropic)
Anthropic skill with a four-phase guide for building Model Context Protocol servers in TypeScript or Python, with reference documents and an evaluation script that tests a server with Claude.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
DOCX skill (Anthropic)
Anthropic skill for creating, reading and editing Word (.docx) documents and templates, including tracked changes, comments, images and find-and-replace. It uses the docx npm package, pandoc, LibreOffice and bundled validation scripts.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
PDF skill (Anthropic)
Anthropic skill with instructions for reading and extracting text and tables from PDFs, merging, splitting and rotating pages, watermarks, creating PDFs, filling forms, encryption and OCR of scanned files. It drives Python libraries and command-line tools from the folder.
By Anthropic, PBC (anthropics/skills repository) · Verified Oct 3, 2026
What to check before installing
A few minutes here is cheaper than undoing a bad connection later.
- Who maintains it. Is the maintainer named, and do they link to an official website or source repository you can inspect?
- What it can access. List the files, accounts, messages or systems it asks for. Is each one really needed for the job you have in mind?
- Where your data goes. Does the data stay on your device, or is it sent to the maintainer or to other services? Read their privacy terms.
- Licence and source. Is the code published, and under which licence? A published source lets others review it.
- Last release. Has it been updated recently, and does the maintainer say how problems are reported?
- Start small. Try it with a test account or non-sensitive data first, and grant read-only access where the choice exists.
- How to remove it. Know how to revoke access and uninstall it before you depend on it.
- Open the skill’s files before using it: does it include scripts, and what do they do?
Other types
Related kinds of listing.
AI agents
Software that uses an AI model to carry out a multi-step task for you, not just answer a question.
ChatGPT apps
Add-ons that let ChatGPT work with another service from inside a conversation.
MCP servers
Programs that give an AI application access to outside tools and data through an open standard.