Hello,
We don't have a sample yet showing AI prompts specifically, but the general UI infrastructure should be there in SyntaxEditor to support those kinds of things. You can inject intra-text adornments (rendering between characters on a single line) and/or intra-line adornments (rendering between lines) to render things like AI prompts.
The latest v25.1 release allows intra-text adornments to optionally render after a character (like the last one in a line), which was specifically added for AI prompt kind of scenarios.
The "Indicators - Debugging" sample shows text after the end of the line when you click the Run button. That is the concept you'd want for the end of the line text display. Other samples show other implementations of intra-text and intra-line adornments.