Anthropic Skills

Creates new skills, improves existing ones and measures how well they perform with evals and benchmarks.

Gives the agent a clear aesthetic direction when building interfaces, with guidance on typography and avoiding templated-looking defaults.

Creates generative art in p5.js with seeded randomness and interactive parameters, such as flow fields and particle systems.

Applies Anthropic's brand colours and typography to slides, documents and other artifacts.

Designs posters and other static visual pieces as PNG or PDF files, starting from a written design philosophy.

Reference for the Claude API and Anthropic SDKs: model ids, pricing, parameters, streaming, tool use, MCP, caching and model migration.

Guides you through co-authoring a document such as a proposal, technical spec or decision doc in structured stages.

Creates, reads and edits Word documents (.docx) and Word templates, including formatting, tracked changes and comments.

Writes internal communications such as status reports, leadership updates and incident reports in the formats a company already uses.

Guides the creation of MCP servers whose tools let an LLM work with external APIs and services.

Reads, creates and edits PDF files: extract text and tables, merge, split, rotate, watermark and fill forms.

Creates, reads and edits PowerPoint files (.pptx), from new slide decks to changes in an existing presentation or template.

Creates animated GIFs sized for Slack, with validation tools for its constraints and a set of animation concepts.

Styles slides, documents, reports and landing pages with one of ten preset themes of colours and fonts, or a custom one.

Builds multi-component claude.ai HTML artifacts with React, Tailwind CSS and shadcn/ui, for work that needs state or routing.

Tests local web applications with Playwright: verify frontend behaviour, debug the UI, capture screenshots and read browser logs.

Opens, edits, fixes and creates spreadsheets (.xlsx, .xlsm, .csv, .tsv), including formulas, formatting and charts.