By Platform
Claude Skills — indexed and scored
Every Claude Skill skill in our index — 12 of them. Each one is scored on safety, maintenance, documentation, and adoption so you can compare across the Claude Skills ecosystem without leaving the directory. Vendor: Anthropic.
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PDF Skill
Anthropic's official Claude Skill for reading, extracting, merging, splitting, watermarking, OCRing, encrypting, and form-filling PDF files.
DOCX Skill
Anthropic's official Claude Skill for creating, reading, editing, and manipulating Microsoft Word .docx files end to end.
XLSX Skill
Anthropic's official Claude Skill for opening, editing, and creating .xlsx, .xlsm, .csv, and .tsv spreadsheets with proper formula recalculation.
All skills tagged here
12 totalPDF Skill
Anthropic's official Claude Skill for reading, extracting, merging, splitting, watermarking, OCRing, encrypting, and form-filling PDF files.
DOCX Skill
Anthropic's official Claude Skill for creating, reading, editing, and manipulating Microsoft Word .docx files end to end.
XLSX Skill
Anthropic's official Claude Skill for opening, editing, and creating .xlsx, .xlsm, .csv, and .tsv spreadsheets with proper formula recalculation.
PPTX Skill
Anthropic's official Claude Skill for creating, reading, editing, and combining PowerPoint .pptx slide decks.
MCP Builder
Anthropic's official Claude Skill for designing, implementing, reviewing, and evaluating high-quality MCP servers in Python or TypeScript.
Webapp Testing
Anthropic's official Claude Skill for interacting with and testing local web applications using Playwright — screenshots, DOM inspection, console logs.
Skill Creator
Anthropic's official meta-skill for designing, editing, benchmarking, and optimising other Claude Skills with variance-aware evals.
Algorithmic Art
Anthropic's official Claude Skill for creating generative algorithmic art in p5.js with seeded randomness and interactive parameter exploration.
Anthropic Brand Guidelines
Anthropic's official Claude Skill that applies Anthropic's brand colors and typography to any visual artifact — slides, docs, posters, web pages.
Canvas Design
Anthropic's official Claude Skill for creating museum-quality posters and static visual art as .png or .pdf files driven by a written aesthetic philosophy.
Internal Comms
Anthropic's official Claude Skill for drafting internal communications — status reports, leadership updates, 3P updates, newsletters, FAQs, incident reports.
Slack GIF Creator
Anthropic's official Claude Skill for assembling animated GIFs that meet Slack's emoji and message constraints using PIL primitives and easing functions.