There are several 'types' of skills that include many skills themselves.
Every skill has an associated skill type. Types are arranged in a tree structure where each type can be considered a sub-type of its parent. For example, Clumsiness will affect "attacks" as well as any type under "attacks." Something that affects "skills" will affect everything as "skill" is the root of the entire skill type tree. Conversely, if something affects any other, more specific type, then it will not affect a skill of type "skill."
There are several 'types' of skills that include many skills themselves.
Every skill has an associated skill type. Types are arranged in a tree structure where each type can be considered a sub-type of its parent. For example, Clumsiness will affect "attacks" as well as any type under "attacks." Something that affects "skills" will affect everything as "skill" is the root of the entire skill type tree. Conversely, if something affects any other, more specific type, then it will not affect a skill of type "skill."