Where skills fit in

Cowork can do a job from scratch. A skill means it never has to.

Everything in Getting started worked without a skill: files in, one plain sentence, a deliverable out. So what's a skill for? A skill is a saved playbook for a job you do repeatedly. It carries the steps, the format, the rules — your categories, your accountant's layout, your deck structure — so you never re-explain them.

It's not software, and there's nothing to code. A skill is closer to a recipe card than an app. Install it once and Claude follows it whenever that job comes up. Your ask shrinks from a paragraph of instructions to “turn this export into the board report.”

• The output comes back the same way every time — the skill holds the standard.
• Your sentence gets shorter — context lives in the skill, not your prompt.
• Nothing to set up again — the second run is as easy as the tenth.
• Your process becomes shareable — send the skill to a teammate and they get your way of doing it.

Three ways to get a skill

• Pick one ready-made — the catalogue has thousands, built by Anthropic and by people who do the job. Fastest path: install and go.
• Make one yours — a skill is a file of instructions on your computer, so you can ask Claude to adapt one you've installed: “take this report skill and use our categories and our tone.” Have it saved under your own name and the original stays untouched.
• Create your own — in Cowork, Customize → Create new skills. Teach Claude your process in plain language: how you write proposals, how your team formats updates.

Most people start with the first, move to the second once a skill almost fits, and build from scratch only when the process is truly theirs.