The best Claude skills for most business owners are the four already built in, Excel, Word, PowerPoint and PDF, followed by internal-comms for team updates, doc-coauthoring for proposals and theme-factory for quick slide styling, all from Anthropic's own skills repository. By best I mean best fit for the job you do every week, not a ranking from a test.
Anthropic's public skills repository held 19 skill folders when I checked on 30 October 2026, and the skills directory inside Claude adds partner skills on top. Most of those 19 weren't written with a marketing team or a small business in mind. So rather than list everything, this page sorts them by job and says plainly who should skip each one.
Start with the four that are already on
You don't need to find, download or install the document skills. Claude uses them automatically when code execution and file creation is switched on, which you check in Settings, then Capabilities. Their own SKILL.md files in the repository show how much they cover:
- xlsx: works with .xlsx, .xlsm, .csv and .tsv files, fixes broken files, adds columns and formulas, formats, charts and cleans messy data.
- docx: creates and edits Word documents, including tables of contents, headings, page numbers, letterheads, tracked changes and comments.
- pptx: creates and edits decks and templates, combines or splits slides, and handles speaker notes and layouts.
- pdf: extracts text and tables, merges, splits, rotates, watermarks, fills forms, encrypts and runs OCR on scanned pages.
If most of your week happens inside Microsoft apps, the Help Center says skills you've enabled in Claude are also available in the Claude for Excel add-in and in Claude in PowerPoint, where typing a slash in the sidebar lists them.
The shortlist: best fit, and who should skip
| Skill | Best for | Who should skip it |
|---|---|---|
| xlsx, docx, pptx, pdf | Spreadsheets, reports, decks and forms you'd otherwise build by hand | Nobody; they're already on |
| internal-comms | Weekly team updates, company newsletters, FAQ answers, incident reports | Solo founders with no team to update |
| doc-coauthoring | Proposals, specs and decision documents other people will read | Anyone writing short emails or social posts |
| theme-factory | Consistent colours and fonts on slides, docs and reports in a hurry | Teams with a strict brand book already |
| brand-guidelines | A pattern to copy for your own brand skill | Anyone hoping to apply their own brand as it stands |
| skill-creator | Building and testing a skill of your own | People who only want ready-made skills |
| discernment-nudge | Follow-up questions that check facts and assumptions after a draft | People who want short answers and nothing else |
| canvas-design | Posters and static visuals as .png and .pdf files | Teams with a designer on hand |
Best for writing and team updates
internal-comms is the most business-ready example in the repository. It covers 3P updates (Progress, Plans, Problems), company newsletters, FAQ answers, status reports, leadership updates, project updates and incident reports. The clever part is how it's built. Instead of one long set of rules, it identifies the type of message you asked for and loads a separate guideline file for that type from an examples folder. If the request doesn't match any of them, it asks you for more context rather than guessing the format.
doc-coauthoring is the one for proposals. It walks you through three stages: context gathering, where Claude asks clarifying questions and invites you to dump everything you know; refinement and structure, where each section is drafted and edited; and reader testing. That last stage is the insight worth stealing. The skill tests the document on a fresh Claude with no context from your conversation, to catch blind spots before a human reads it. In Claude chat, where it can't start a sub-agent, its instructions tell you to open a fresh conversation and paste the document in yourself.
Best for design and slides
theme-factory styles slides, docs, reports and HTML pages with one of 10 preset themes, each a colour palette plus a heading and body font pairing. The names give you the mood: Ocean Depths, Modern Minimalist, Golden Hour, Midnight Galaxy and so on. It shows you a theme showcase, asks which one you want, waits for you to confirm, and only then applies it. If none fit, it generates a new theme on the spot.
brand-guidelines needs a warning label. It applies Anthropic's own brand, with Poppins for headings and Lora for body text and Anthropic's colour palette. It isn't for your brand. Use it as the shape to copy: the Help Center's own example skill does the same thing with a made-up company called Acme Corp. Swap in your colours, fonts and logo rules, and you've got the brand skill most teams want.
Developer skills a marketing team can skip
A good chunk of the repository is written for people building software. mcp-builder is a guide to building MCP servers in Python or TypeScript. webapp-testing tests local web apps with Playwright. web-artifacts-builder builds multi-component artifacts with React, Tailwind CSS and shadcn/ui. claude-api is a reference for Claude's API and SDKs and comes bundled with Claude Code. frontend-design, algorithmic-art and slack-gif-creator round out the creative and technical end. They're fine skills. They're just not your skills if you run a business rather than a codebase.
Partner skills and skills your company gives you
Partner skills in the directory come from companies such as Notion, Figma and Atlassian and are designed to work with those companies' connectors. They're the best pick only if you already use that tool every day. On Team and Enterprise plans, owners can also provision skills for everyone; those turn up enabled by default, and you can toggle them off. Anything you add from the directory is view-only, so to change it you download a copy, edit it and upload it as your own.
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One honest caution. Anthropic's README says the repository skills are for demonstration and educational purposes, and that Claude's own behaviour may differ. Skills can also run code, so Anthropic's advice is to stick to skills you made or got from Anthropic and to read every bundled file before enabling anything from elsewhere.
My picks if you only do two things
I'd turn on the four document skills today and copy internal-comms as the model for your own team-update skill, swapping in your formats. If you write proposals, add doc-coauthoring for its reader-testing stage alone. Skip the developer skills unless you build software, and skip brand-guidelines unless you're using it as a template. If you're still working out what a skill can do for you, start with my plain guide to Claude skills.
If your team wants help choosing the Claude skills that fit your work and rolling them out without the guesswork, that's the kind of AI enablement I help with. I run AI training and workshops for teams, and help businesses with AI enablement and workflow automation, so the busywork runs itself and people get time back. Most of that work is with SaaS marketing teams and small businesses. Here's how we can work together.
Frequently asked questions
What are the best Claude skills for business?
Start with the built-in Excel, Word, PowerPoint and PDF skills, then internal-comms for team updates, doc-coauthoring for proposals and theme-factory for quick slide styling. All come from Anthropic.
Do I need to install the best Claude skills?
Not the document skills. Claude uses them automatically when code execution and file creation is on. Others can be added from the directory in Customize, then Skills.
What does the internal-comms skill do?
It writes internal communications such as 3P updates (Progress, Plans, Problems), newsletters, FAQ answers and incident reports, loading a different guideline file depending on the type of message.
Can I use the brand-guidelines skill for my own brand?
Not as it stands. It applies Anthropic's own brand. Copy its structure and replace the colours, fonts and rules with yours.
Which Claude skills can non-developers skip?
mcp-builder, webapp-testing, web-artifacts-builder and claude-api are written for people building software, so most business owners can skip them.
