What a skill is
A skill is a folder with one markdown file inside:
- A name and a description. Claude reads the description to decide when to use it.
- Your rules in plain language. No code required.
Why skills stay light
Skills load in layers:
- The name and description are always visible.
- The full instructions load when your task matches.
- Linked files like templates open only if needed.
Start with the skills every team shares
- Brand voice
- Ideal customer
- Personas and messaging
Update one file and every output downstream follows.
Build your own in three steps
- Define one specific task. What would you tell a new hire?
- Write the skill, or just ask Claude to "create a skill for this task."
- Test it, fix what's off, and repeat.
Recap
Skills package your know-how, so Claude does it your way every time.
Your mission: ask Claude to create a skill for your most repeated task, then test it twice.
Next lesson: connectors, plug Claude into your tools.