Claude Skills - The Paid Work Playbook by John Cook

You installed the skills. You copied the folder. You still type the same prompt every morning. Again.

Meanwhile, the question under every skill post on Reddit is the one you already have. How do I actually use this in my projects. The replies never get there. The people who worked it out are already posting folders where the right skill fires on its own and the wrong one stays quiet. The difference isn't talent. It's twelve tests, and nobody has written them down.

This book turns the folder you already installed into a working set you can put in front of a client. You run the first test in ten minutes and find out, with a number, whether a skill helps you at all. By Chapter 4 one of your skills fires in three fresh sessions without you ever naming it. By Chapter 8 you can read a stranger's skill and say what it does that the README never mentions. By day 30 you have a handover pack you could attach to an invoice, and a re-test you run the morning a new model ships and half your folder stops working.

This isn't another book explaining what a skill is. Every sheet in this book comes with a free companion repo: the finished skills in a folder you can copy, and two scripts that measure your own folder without an account or a sign-up, and more.

Here's what you'll build:

1. An intake form that scores any skill on what it claims, when it last fired, and whether you have proof.
2. A two-run sheet that settles whether any skill earns its place, in ten minutes.
3. A costing sheet that prices any skill before you install it.
4. One skill that fires in three fresh sessions without being named, and the log that proves it.
5. A skill whose output goes straight to a client, plus the fire and do-not-fire tests that keep it that way.
6. A five-question screen that rejects a bad skill in ninety seconds, and the security read that shows what a downloaded one really does.
7. A skill that reports what it did NOT do, plus the one-page description that gets it onto an invoice.
8. A client-ready handover pack, a thirty-day pruning routine, and a release-day re-test for every new model.

Every week another Claude Skills book is published. Five arrived in the last month, two of them under 110 pages. The ones that sell are general Claude manuals where Skills is a single bullet. This one is 191 pages, twelve chapters, and every chapter ends in a skill that runs and is sellable. Scroll up and grab your copy.