You can edit permissions for commands in your commands.yml file, under the Permissions section.
Note: The eval and reset commands require a user ID
By default, Corebot uses inheritance-based permissions. This means that any role above the role you specify will have permission. For example, if you have the ban command permission set to the Moderator role and your Discord role hierarchy looking like this, the Admin and Owner role would also be able to run the ban command:
Owner
Admin
Moderator
Member
You can disable inheritance by setting Inheritance (Line 141 by default) to false in your commands.yml file