For anyone interested, this was my (single!) prompt:
"I need to understand where players drop off, on which level most players are etc so we can improve the retention. Add a new page to our admin-web/ app with a chart that shows level distribution of all InstantDB players. Also include more stats that could be helpful to visualise or understand retention, like at which level players were last online, or how many players were last online on a day.
Plan this feature first with focus on improving retention and visualising numbers so we can make meaningufl changes based on the data"