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Hey AI Breakers 👋

There are thousands of free Claude skills sitting on GitHub, and almost nobody has them switched on.

One is 49 marketing specialists in a folder. Another convenes a five-person panel that tears your business idea apart before you waste six months building it.

Here are the six worth installing, how to set them up, and how to avoid the malicious ones. We verified every repo the day we wrote this.

Let’s go 👇

🧠 What a Skill Actually Is

A skill is a folder containing a SKILL.md instruction file, plus optional scripts. Claude reads only the skill’s name and description at first. When your request matches, it loads the full instructions.

That’s called progressive disclosure, and it’s why you can have two hundred skills installed without clogging up Claude’s memory.

Quick disambiguation, because these get mixed up constantly:

  • A prompt is a one-time instruction you have to paste every session again.

  • A skill is permanent, and fires by itself when your task matches.

The important part: skills can carry real code. That’s why the right skill produces an actual PowerPoint file instead of describing one to you.

What used to be: hire a marketing consultant, wait two weeks, get a deck. Or do it yourself badly at 11pm.

Now: one message, expert-grade output, about four minutes.

⚙️ Step 1 → Turn Skills On

Three minutes, and there’s one toggle everyone misses.

In the Claude app (browser or desktop):

  1. Go to Settings > Capabilities and turn on “Code execution and file creation.” Skip this and no file ever gets made, and you’ll spend an hour wondering why.

  2. Go to Customize > Skills.

  3. Toggle on what you want. To add a community skill, hit +, then + Create skill, then Upload a skill and drop in a ZIP of the skill folder.

Skills work on Free, Pro, Max, Team and Enterprise plans.

In Claude Code, it’s two commands for the official set:

Commands:

/plugin marketplace add anthropics/skills

/plugin install document-skills@anthropic-agent-skills

/plugin install example-skills@anthropic-agent-skills

💡 Tip: document-skills gives you xlsx, docx, pptx and pdf. example-skills gives you twelve more, including frontend-design and skill-creator. That’s skills #4, #5, and #6 below already handled.

📣 Skill #1 → The Marketing Department (Marketing Skills)

Source: coreyhaines31/marketingskills · 44,215 stars · 49 skills

If you install one thing from this tutorial, make it this one. 49 marketing skills in a single repo: copywriting, CRO, SEO, pricing, cold email, paid ads, launches, churn prevention, lead magnets, landing page audits. Real frameworks and benchmarks, not generic advice.

✅ Use this to get agency-grade marketing work without the agency retainer.

Install:

npx skills add coreyhaines31/marketingskills

# or just the ones you want:
npx skills add coreyhaines31/marketingskills --skill cro copywriting pricing

# or browse the full list first:
npx skills add coreyhaines31/marketingskills --list

It installs into .claude/skills/. Then set your foundation once:

Prompt:

Use the product-marketing skill to build my positioning foundation.

My business: [WHAT YOU SELL, IN ONE SENTENCE]
Who it's for: [YOUR IDEAL CUSTOMER, BE SPECIFIC]
What they use today instead: [THE COMPETITOR OR THE MANUAL WORKAROUND]
Price: [YOUR PRICING]
Why we win: [YOUR REAL EDGE, NOT A SLOGAN]

Build the positioning foundation the other marketing skills will read.

Then push back on me. Where is my positioning vague, generic, or
identical to what my competitors would say about themselves? Be
specific about which words are doing no work.

💡 Tip: That last paragraph matters most. Claude defaults to agreeable. Asking it to attack your positioning is how you find out “we help teams work smarter” means nothing.

🏛️ Skill #2 → Your Virtual C-Suite Team (c-level-agents)


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