Skills Primer: What Are Skills in Cowork?

What Are Skills in Claude?

Skills in Claude are reusable prompts that give the AI deep expertise in specific areas you work with regularly. Think of them as hiring a specialist consultant who's always available with the best practices from industry leaders.

Instead of researching best practices every time you need to create performance ads or email campaigns, you can create a skill that contains all the methodologies from top practitioners in that field. Claude then automatically applies this expertise whenever you work on related tasks.

How Skills Work Behind the Scenes

Skills are stored as markdown files (.md) in a designated folder on your system. When you mention certain trigger words or work on specific tasks, Claude automatically pulls in the relevant skill to inform its responses.

The real power comes from Claude's ability to create these skills for you. Rather than manually researching and writing up best practices yourself, you can ask Claude to research industry leaders and create comprehensive skills based on their methodologies.

Creating Your First Skill: A Performance Marketing Example

Let's walk through creating a performance marketing skill that draws from the expertise of top practitioners in the field.

Step 1: Request the Skill Creation

Ask Claude to create a skill for your specific needs. For example:

"I'm a marketer that's constantly running performance ads on Meta and paid social in general. Create a skill that leverages insights from the very best performance marketers and their methodologies. Create that skill and add it into our folder."

Step 2: Answer Clarifying Questions

Claude will typically ask follow-up questions to make the skill more targeted:

• What platforms should the skill focus on?
• What's the primary goal (lead generation, sales, awareness)?
• Any specific verticals or business types?

Step 3: Let Claude Research and Build

Claude will research methodologies from top performance marketers and draft a comprehensive markdown file. This file includes:

• Best practices from industry leaders
• Specific trigger words that tell Claude when to use this skill
• Detailed methodologies and frameworks
• Platform-specific insights

Installing Skills in Claude

Once Claude creates your skill file, you need to install it:

1. Go to Settings in Claude
2. Navigate to Capabilities
3. Find the Skills section
4. Upload your skill file (it will be in the folder you specified)
5. Ensure the skill is enabled

Skills in Action

Once installed, your skills work automatically. When you ask Claude to "create a performance marketing brief for new Meta ads," it will:

1. Recognize the trigger words (Meta ads, performance marketing)
2. Automatically load your performance marketing skill
3. Apply all the best practices and methodologies from that skill
4. Create a comprehensive brief informed by industry expertise

The skill appears in Claude's response, showing you it's been activated and is informing the output.

The Power of Skill Stacking

Skills become exponentially more powerful when combined. You can create skills for:

• Performance marketing
• Email marketing
• Content strategy
• Copywriting
• Analytics and reporting

When you ask for a "complete product launch campaign," Claude can pull from multiple skills simultaneously, giving you strategies that incorporate best practices from specialists across all these areas.

Two Ways to Add Skills

Method 1: File Upload (Recommended) Have Claude create the skill file, then upload it through the Skills interface. This method keeps everything organized and properly formatted.

Method 2: Copy and Paste You can also manually add skill instructions directly in the Skills interface by copying and pasting the content. This works well for simpler skills or when sharing skills created by others.

Making Skills Work for Your Business

The most effective skills are specific to your actual work patterns. Consider creating skills for:

• Industries you work with frequently
• Specific campaign types you run regularly
• Compliance requirements for your sector
• Brand voice and messaging guidelines
• Analytics frameworks you use consistently

Each skill should contain enough detail to guide Claude's responses but remain flexible enough to apply across different projects.

Key Takeaways

• Skills are reusable expertise: They store best practices from industry leaders so Claude can apply them automatically to your work
• Claude can create skills for you: No need to manually research and write them yourself
• Skills activate automatically: Trigger words tell Claude when to pull in specific skills
• Skill stacking multiplies power: Combine multiple skills for comprehensive, expert-level outputs across different marketing functions
• Two installation methods available: Upload files for complex skills, or copy-paste for simpler ones