When editing a wiki tag they ask for a body and a usage guidance.
What is this usage guidance?
Nota: Quizás explicándolo en castellano entienda a qué se refiere este campo de texto que la gente es obligada de rellenar.
It's so you can direct people that will use the tag. So they can know in which cases they can use that tag.
For example you have the tag
vocabulario that is used for the meaning of words or how a specific word may be used. It is not to be confused with
selección-de-palabras that is used for the words used as a group in a specific context, or if they are well used together with others.