What's the point of the AI writer in that use case? Just send your prompt to my AI. And for that matter since prompting is in plain English, why not just send your prompt directly to me, and I'll choose to prettify it through an AI or not as I prefer.

The point is that it summarizes the context. It’s an important optimization, because context and tokens are both limited resources. I do something similar all the time when working with coding models. You’ve done a bunch of work, ask it to summarize it to the AGENTS.md file.

The more fully automated agents rely heavily on this approach internally. The best argument against it is that good harnesses will do something like this automatically, so you don’t need to explicitly do it.

Sending you the prompt wouldn’t help at all, because you’d have to reconstruct the context at the time the notes were written. Even just going back in version control history isn’t necessarily enough, if the features were developed with the help of an agent.