Claude Skills Library
Installable capability modules for Claude Code & Cowork. Each skill gives Claude expert-level knowledge for a specific workflow.
What Are Claude Skills?
Claude skills are installable capability modules that give Claude expert-level knowledge for specific workflows. Instead of prompting Claude from scratch every time you need to write a Word document, analyze data, or prepare for a sales call, a skill pre-loads the domain knowledge, output format, and best practices Claude needs to do that job well.
Skills were introduced with Claude Code and Cowork in 2025 and have since expanded to cover over 100 professional workflows across 12 categories. Each skill is a folder containing prompt templates, reference files, and output schemas that Claude reads before starting work. The result is a measurable improvement in output quality for specialized tasks: a Claude with the PPTX skill loaded builds better presentations than general-purpose Claude because it has internalized the structure, formatting rules, and common pitfalls of slide deck creation.
As of April 2026, the most-used Claude skills are in the productivity category (PPTX, DOCX, XLSX, PDF) and the sales category (call-prep, draft-outreach, pipeline-review). Enterprise teams frequently run custom skills built around their internal processes, brand guidelines, and preferred output formats. The skill creator skill lets users build and test new skills directly within a Claude session.
Browse by Topic
Deep guides for every aspect of Claude skills.
Discover Claude skills hosted on GitHub, open-source skill bundles you can install directly into Claude Code or Cowork to supercharge your AI workflows.
Explore the Claude skills marketplace, a curated collection of installable skills for Claude Code and Cowork that extend what Claude can do for your specific workflows.
A full library of Claude skills organized by category, from document creation and data analysis to marketing, legal, and engineering workflows.
Ready-to-use Claude skill templates you can customize for your own workflows. Whether you need document creation, data analysis, or custom AI automation, these templates get you started fast.
The Claude PDF skill lets you extract text and tables, fill PDF forms, merge documents, and create new PDFs, all through natural language commands.
Real examples of Claude skills in action, see exactly how skills are used for document creation, data analysis, marketing, engineering, and more.
Everything you need to know about Claude skills, what they are, how they work, how to install them, and how to build your own from scratch.
Technical documentation for Claude skills, SKILL.md format, plugin structure, invocation patterns, and the complete skill development reference.
The Claude skill creator generates custom SKILL.md files from a description of your workflow, turning any repeatable task into a reusable Claude skill in minutes.
The complete, up-to-date list of Claude skills available in Cowork and Claude Code, organized by category with descriptions of what each one does.
Claude skills built specifically for frontend development, component generation, UI reviews, accessibility audits, design handoffs, and more.
All the skills available in Claude Cowork, Anthropic's desktop app for non-developers to automate file and task management with AI.
Skills by Category
Every Claude skill, organized by the type of work it automates.
Productivity
Marketing
Engineering
Data & Analytics
Sales
Finance
HR & People
Legal
Start Using Claude Skills
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Claude Skills, FAQ
What are Claude Skills?
Claude Skills are reusable, installable capability modules that teach Claude how to do a specific task well, a folder of instructions (a SKILL.md plus any supporting files) that Claude loads on demand when a task is relevant. They let you package expertise (a workflow, a format, a set of best practices) once and have Claude apply it consistently across conversations, in Claude Code and Cowork, without re-explaining it every time.
How do I use or install a Claude skill?
In Claude Code, skills live in a skills directory and are invoked when their description matches what you're doing (or by name). You add a skill by placing its folder where Claude looks for skills, then Claude reads the full instructions when the task calls for it. Anthropic provides built-in skills (for documents, spreadsheets, slides, PDFs, and more), and you can create your own or install community ones. Each skill's short description stays in context so Claude knows when to reach for it.
What is the difference between a Claude skill and a prompt?
A prompt is a one-off instruction for a single conversation. A skill is a packaged, reusable capability that Claude loads automatically when relevant and applies the same way every time, think of a prompt as telling Claude what to do now, and a skill as giving Claude a repeatable playbook it can pull off the shelf. Skills are better when you want consistent, expert behavior on a recurring task across many sessions.
Are Claude Skills free?
The Skills capability is part of Claude Code and Cowork, and Anthropic's built-in skills are included. Creating and using your own skills doesn't cost anything beyond your normal Claude usage. You'll need an appropriate Claude plan or API access to use Claude Code/Cowork, but skills themselves are a feature of the product rather than a separate paid add-on.