Anthropic

Install the pptx skill to work with .pptx files for reading, editing, creating, unpacking, validating, and rebuilding PowerPoint presentations.

Install the pdf skill to handle common PDF tasks such as reading files, extracting text, merging and splitting pages, filling forms, converting PDFs to images, and working with scanned documents.

Practical guidance for designing, building, and evaluating MCP servers in Python or Node/TypeScript, with references for tool design, transport choices, naming, and testing.

Create original algorithmic art with p5.js using seeded randomness, reusable templates, and an interactive viewer for parameter exploration.

Use the brand-guidelines skill to apply Anthropic brand colors and typography to documents, visuals, and other artifacts that need a consistent official look and feel.

canvas-design helps agents create original static visual designs as .png or .pdf outputs, guided by a written design philosophy and a design-first workflow.

Install and use claude-api to build apps with the Claude API, Anthropic SDKs, and Agent SDK patterns across multiple backend languages.

A practical Claude skill for guiding users through a structured co-authoring workflow for docs, proposals, specs, RFCs, and decision documents.

Install and use the docx skill to create, inspect, edit, validate, comment on, and convert Word .docx files with practical document workflows.

Use the frontend-design skill to create polished frontend interfaces with a strong visual direction, practical code output, and better-than-generic UI results.

internal-comms helps Claude draft internal company communications such as status reports, leadership updates, newsletters, FAQs, and incident-style updates using example-driven formats.

Create, refine, test, and benchmark agent skills with the skill-creator workflow, including eval review, grading, blind comparison, and description improvement.

Create animated GIFs for Slack with practical guidance, Python utilities, and validation tools for sizing, timing, and optimization.

Apply curated visual themes to slides, documents, reports, and landing pages with 10 preset style options and a theme selection workflow.

Build complex Claude HTML artifacts with React, TypeScript, Tailwind CSS, and shadcn/ui, then bundle everything into one portable HTML file.

Playwright-based skill for testing local web applications, inspecting rendered UI state, capturing screenshots, and collecting browser console logs.

Use the xlsx skill when a spreadsheet file is the main deliverable, including .xlsx, .xlsm, .csv, and .tsv workflows.