The most common daily use.
HOW TO ASK
"Here is an email I received: [paste]. I want to [outcome]. Tone: [how]. Under [length]."
STATE THE OUTCOME, NOT THE WORDS
"I need to decline without damaging the relationship" produces better results than "write a polite refusal".
WHAT TO ALWAYS CHECK BEFORE SENDING
Any commitment about timing. Generated replies readily promise things you did not intend. Names and details Facts Tone, toward how you actually speak
THE COMMITMENT WARNING
"We'll have that to you by Thursday" appears in drafts because it is the sort of thing that appears in emails.
Check every promise.
FOR DIFFICULT MESSAGES
"I need to tell [who] that [situation]. Be honest, take responsibility, say what I will do. No excessive apology."
FOR ROUTINE REPLIES
Build a reusable prompt with your tone and common information.
FOR PERSONAL MESSAGES
Write them yourself. The recipient can tell.