I was going by this example:

> /issue you know that paint bucket in google docs i want that for tldraw so that I can copy styles from one shape and paste it to another, if those styles exist in the other shape. i want to like slurp up the styles

What kind of context may be there?

Also, the entire repository and issue tracker is context. Over time it gets only more complete.

I don't get it either. The LLM-generated issue from the above prompt is just the same information written more verbosely.

The entire chat log up until the user asks it to generate a summary. And maybe "memories" and custom system prompts for good measure. A lot of potentially private information, in other words. "Just the prompt" only works in a very particular case where you ask it for something out of the blue.