Check for any possible misinterpretations. The user wants to avoid any ambiguity about their request. Maybe use a subject line if it's an email or a clear opening statement in the post. Also, make sure the tone isn't too harsh, but firm enough that the request is taken seriously.
First, I should consider the context. The user mentions "m new," which probably stands for "my new" something. Maybe the sister's presence is causing issues with something new the user is doing, like a new project, social environment, or perhaps a new group of friends. Since the user hasn't provided specifics, the post needs to be general enough but still clear. nicolette shea dont bring your sister around m new
I should structure the post in a positive and constructive way. Start with a friendly greeting, state the request politely, explain the reason if possible (without giving too much detail), and close with appreciation for understanding. Check for any possible misinterpretations