Claude skill · Official · Anthropic
The PDF skill lets an AI assistant read, merge, divide, and modify PDF documents.
Proprietary (source available)★ 182,168
Claude skills
A skill is a folder of instructions and files that Claude loads when a task calls for it, such as filling in a PDF form or building a front end. Here is what each one does, when Claude uses it and how to install it, checked against its own SKILL.md.
Documents and files
PowerPoint (PPTX)
Claude skill · Official · Anthropic
The PowerPoint (PPTX) skill helps an AI assistant create, edit, read, and check .pptx and .potx presentation files.
Proprietary (source available)★ 182,168
Design and visuals
Algorithmic art
Claude skill · Official · Anthropic
The Algorithmic art skill lets an AI assistant make generative art in p5.js, relying on seeded randomness and tunable parameters.
Apache-2.0★ 182,168
Brand guidelines
Claude skill · Official · Anthropic
The Brand guidelines skill lets an AI assistant use Anthropic's official palette and type styles so outputs align with its visual identity.
Apache-2.0★ 182,168
Canvas design
Claude skill · Official · Anthropic
The Canvas design skill helps an AI assistant create visual art and static designs as PNG or PDF files.
Apache-2.0★ 182,168
Coding and building
MCP builder
Claude skill · Official · Anthropic
The MCP builder skill guides an AI assistant in creating MCP servers that let LLMs interact with external services through tools.
Apache-2.0★ 182,168
Skill creator
Claude skill · Official · Anthropic
The Skill creator skill lets an AI assistant build, modify, and assess the performance of other skills.
Apache-2.0★ 182,168
Web app testing
Claude skill · Official · Anthropic
The Web app testing skill lets an AI assistant verify frontend behavior, troubleshoot UI problems, take screenshots, and check browser logs for local web apps.
Apache-2.0★ 182,168
Writing
Internal comms
Claude skill · Official · Anthropic
The Internal comms skill guides an AI assistant in drafting workplace communications that follow the formats a company relies on for internal messaging.
Apache-2.0★ 182,168
Humanizer
Claude skill · Community · blader
The Humanizer skill lets an AI assistant recast chatbot-like writing so it sounds closer to the author's own voice.
MIT★ 58,389
Marketing
A/B testing
Claude skill · Community · coreyhaines31
The A/B testing skill guides an AI assistant in planning, designing, and running experiments that produce statistically sound, actionable findings.
MIT★ 55,500
Cold email
Claude skill · Community · coreyhaines31
The Cold email skill helps an AI assistant write, set up, and run B2B cold outbound campaigns across email, LinkedIn, and follow-ups.
MIT★ 55,500
Content strategy
Claude skill · Community · coreyhaines31
The Content strategy skill helps an AI assistant decide which content to produce and which topics to cover, rather than just writing it.
MIT★ 55,500
Planning and thinking
Brainstorming (Superpowers)
Claude skill · Community · obra
The Brainstorming (Superpowers) skill helps an AI assistant talk through ideas with a user before any new feature, component, or plan is built.
MIT★ 301,989
Writing plans (Superpowers)
Claude skill · Community · obra
The Writing plans (Superpowers) skill lets an AI assistant draft a plan for a multi-step job from its specification before any coding begins.
MIT★ 301,989
Idea refine
Claude skill · Community · addyosmani
The Idea refine skill helps an AI assistant turn vague ideas into sharper, actionable concepts by expanding and then narrowing options.
MIT★ 108,506
Still being checked
Claude API · Excel spreadsheets (XLSX) · Word documents (DOCX) · Executing plans (Superpowers) · Documentation and ADRs · Performance optimization · I have ADHD · Citation management · Experimental design · Exploratory data analysis