Editing Unwritten: System Reference Document/Character Creation (section)

===Build for Diversity===
Protagonists are not just competent, but have some all-around capability. You should expect your character to be able to add something to a wide variety of situations.

When you are choosing your skills, aim for having a diverse range of options. Your skills should not all be in the same discipline or same set of disciplines—no more than two in any particular domain, ideally. A scholar might have a secondary area of interest, for example. If they have worked in the field a lot, maybe they have picked up some hands-on survival skills.

Think about the type of game you will be playing as well. If you have a game heavy on mysteries, you’ll need skills that you help you uncover clues. Exploration games will require problem-solving abilities, or skills that help in varying types of wilderness. If there’s going to be some action, you’d best be able to defend yourself or know when to run.

Diversity also applies to the group of characters as well. Where there is overlap in concepts, your skills should help differentiate you. If you have several scholars, they should have different specializations. Everyone should have a place where they have the spotlight.