from an automation perspective, there's no real good reason to keep a familiar out and can actively cause you headache.
assuming chat is correct and this is a cwtn plugin question?
you didn't post in that section nor say what you're using
Each resource on RG has an Overview / Discussion Thread and either a link to their wiki or tabs with FAQ, Commands, Etc.
Please make sure to post in the respective discussion thread, and check the FAQ/Commands/Wiki for information before posting.