Official

Official skills

First-party skills straight from the source. Published and maintained by Anthropic and OpenAI, mirrored here with the full document and one-click install.

These are the skills the model builders ship themselves. Anthropic's document suite — pptx, docx, xlsx, pdf — and design skills like canvas-design and frontend-design are the reference implementations everyone else forks; OpenAI's set leans into Figma, deployment and repo workflows. Because they come straight from the source, they track the upstream repo, not a third-party re-upload that quietly goes stale.

Every official skill here carries its full SKILL.md and its auxiliary scripts, packaged exactly as the repo publishes them, and installs onto any of your agents in one click. When a skill needs a helper script to do its job — the way pptx leans on a Python thumbnail generator — that script comes with it, so it works the moment it lands.

Star counts are the real GitHub numbers; install counts are omitted rather than invented, because a first-party skill's authority comes from who published it, not from a usage number we could only estimate.

Anthropic official skills

View all Anthropic

Create a seeded p5.js artwork, its algorithmic manifesto, and an interactive parameter viewer.

by Anthropic168.0k stars

Apply Anthropic’s official colors, heading fonts, body fonts, and shape accents to visual artifacts.

by Anthropic168.0k stars

Creates an original visual philosophy and renders it as a refined PNG or PDF artwork.

by Anthropic168.0k stars

Guides documentation from context gathering through section-by-section drafting and reader testing.

by Anthropic168.0k stars

docx

Official

Create, read, edit, validate, and visually inspect .docx documents.

by Anthropic168.0k stars

Plan and build subject-specific interfaces with deliberate color, typography, layout, motion, and copy.

by Anthropic168.0k stars

Draft internal updates using the appropriate format, tone, and content-gathering guidelines.

by Anthropic168.0k stars

mcp-builder

Official

Build and evaluate TypeScript or Python MCP servers that expose external services as well-designed tools.

by Anthropic168.0k stars

pdf

Official

Read, create, extract, merge, split, rotate, watermark, OCR, and protect PDF files.

by Anthropic168.0k stars

OpenAI official skills

View all OpenAI

aspnet-core

Official

Build and improve ASP.NET Core apps using focused, current framework guidance.

by OpenAI24.8k stars

chatgpt-apps

Official

Plan, scaffold, refactor, and validate ChatGPT Apps SDK projects with an MCP server and widget UI.

by OpenAI24.8k stars

cli-creator

Official

Build and install a composable CLI with stable JSON, explicit auth, safe commands, tests, and companion guidance.

by OpenAI24.8k stars

Select, configure, and deploy applications or infrastructure on the appropriate Cloudflare services.

by OpenAI24.8k stars

define-goal

Official

Convert an intention into a scoped, measurable goal with explicit completion evidence.

by OpenAI24.8k stars

figma

Official

Convert exact Figma nodes into code that follows your repository’s components, tokens, and conventions.

by OpenAI24.8k stars

Find and confirm code matches for published Figma components, then create selected Code Connect mappings.

by OpenAI24.8k stars

Create a blank Figma Design or FigJam file and return its file key and direct URL.

by OpenAI24.8k stars