The message arrives and your stomach drops slightly. They want a discount. They are unhappy with something that was in the brief. They have gone quiet for two weeks and now want it by Friday.
You know roughly what you want to happen. What is hard is the wording - polite but not apologetic, firm but not cold, and free of the three sentences you will regret if you write them while annoyed.
The single most useful thing about running this through AI is not the writing. It is the pause. You state your goal explicitly, and stating the goal calmly is most of the work; the reply almost writes itself once you know what you actually want the message to achieve.
This prompt gives you two versions - short and detailed - because the right length depends on the client, and it is easier to choose than to specify. Run it in the AIMIKA chat in Text mode.
You get two versions - short and detailed - because the right length depends on who you are writing to, and choosing is faster than specifying. Both are polite, both are professional, and neither contains the sentence you would have written at 11pm and regretted at 9am.
The field that does the real work is the goal line. Writing down what you want the reply to achieve - hold the price, buy two days, decline without burning the relationship - forces you to decide before you write. Most difficult replies are difficult because that decision has not been made yet.