You're doing every job in your business yourself. These free Claude skills act like a specialist for each one: marketing, social, design, finance, and legal. All real, all free, and here are the links.
When you run a business alone, you're the marketer, the designer, the bookkeeper, and the one squinting at contracts at 9pm. A Claude skill is just a file that gives Claude the exact knowledge and steps to do one of those jobs the way a specialist would. Download the right ones and you hand off the parts you were never trained for.
Below are the five I'd set up first, by department. Two of them, finance and legal, are Anthropic's own official skills. Every link on this page was checked in July 2026.
One pack, a whole marketing team's worth of jobs. It writes your ad creative, your copywriting for landing pages and emails, and it can lay out a full month-long marketing plan.
Inside: ad-creative, copywriting, cro, marketing-plan, lead-magnets, programmatic-seo
/plugin marketplace add coreyhaines31/marketingskills
/plugin install marketing-skills@marketingskills
Run voice-builder first. It interviews you and writes a file that holds your actual voice, then every other skill reads it, so your Reel scripts and thumbnails actually sound like you.
Start with: voice-builder, then reels-scripting and youtube-thumbnail
/plugin marketplace add charlie947/social-media-skills
/plugin install social-media-skills@social-media-skills
These make what you build stop looking like AI made it. There are five design packs going around. The two I'd start with are UI UX Pro Max and one called Taste, which give your work a real point of view instead of the generic AI look.
Start with: UI UX Pro Max, then Taste
/plugin marketplace add nextlevelbuilder/ui-ux-pro-max-skill
/plugin install ui-ux-pro-max@ui-ux-pro-max-skill
npx skills add https://github.com/Leonxlnx/taste-skill
This one reads your financial statements and gives you a real P&L, balance sheet, and cash flow. It runs variance analysis so a bad month gets broken into price versus volume, and it reconciles your accounts. You understand your numbers without hiring anyone.
Most useful: financial-statements, variance-analysis, reconciliation
/plugin marketplace add anthropics/knowledge-work-plugins
/plugin install finance@knowledge-work-plugins
It reviews a contract clause by clause against your own playbook, triages an NDA in a minute, and turns a pile of documents into the short version. Use it to understand a contract before you ever send it to your lawyer.
Most useful: review-contract, triage-nda, brief
/plugin install legal@knowledge-work-plugins
Think of these as your read-through before the lawyer. They get you understanding a contract before you pay someone to read it, so the hour with your lawyer ends up faster and cheaper.
This is the step that turns a free download into something you actually use. A fresh skill is generic. It doesn't know your business, your voice, or your prices yet. 20 minutes here is the difference between a skill you reach for every week and one you forget you installed.
And you don't need to be technical for any of it. A skill is just a set of instructions saved in a file called SKILL.md, and you can change those instructions by talking to Claude in plain English. Claude does the typing.
Every skill lives in a folder on your computer, inside one called .claude/skills. Before you change anything, make a copy of that folder somewhere safe, because when the skill's maker releases an update, it overwrites the original and takes your edits with it, with no warning. If you're not sure where the folder is, ask Claude, "where is this skill saved on my computer?" and it will tell you.
This prompt customizes any skill. Paste it into Claude and fill in the brackets with your own business.
I want to customize the [name of the skill] skill so it works the way my business works. Here is my business: [what you do and who you serve]. My brand voice is [describe it, for example: warm but direct, plain language, no jargon]. My offers are [list your offers and prices]. My customer is [their role, what they have already tried, what they are worried about]. Please rewrite the skill's instructions to match all of this. Keep the section at the very top between the dashes exactly as it is, and show me what you changed.
What to tell each skill about your business