Should I give AI a word limit?
Yes, always say how long you want the answer. Give a number, such as 250 words, 500 words or one page, depending on where the text is going. Length belongs in the expectations part of your prompt, at the end, together with the format and tone you want.
More in Prompting Tips
What is a Prompt Library?
A prompt library is any place where you keep your reusable prompts: a Word document, an Excel sheet or a notebook page all work. Save a prompt once it gives you good results, then swap the details the next time you use it. That saves rewriting the same instructions again and again.
What should I write in Custom Instructions?
Describe how you work and communicate, and let the AI draft the instructions for you, because it explains things to itself better. In Copilot, a strong approach is to ask it to analyse your sent emails and write instructions that match your style. Then paste the result into the custom or draft instructions box.
What is the difference between Custom Instructions and Memory in AI?
Custom instructions hold your stable preferences, such as language, tone and role, and are sent with every message. Memory holds things that change over time. If the two contradict each other, the newest memory usually wins, but a memory is never created without you, so you stay in control.