Can PromptQL combine action and data fetch into one response?
Of course, @carmendavis 
PromptQL breaks down each question from a user into two buckets: query planning and execution. If could be—and most often is—that data will be fetched early in the query plan and, based on that, some action will be taken on behalf of the user. A good example is here in our quickstart where we rent the movie based on finding information first.