A common pattern for many workflows this inline help is a passive approach to providing users guidance on authoring a prompt.
Best suited for users unfamiliar with AI or unsure of the requirements. Not applicable for all users as this succinct guidance does not lead users through a process like a tutorial would.
While the simple guidance can point users in the right direction, consider adding a link to further resources that provide deeper detail.
Keep this content succinct but detailed enough to be helpful on it's own. Consider what is critical information for your users in a particular context.