Hello! I've attached a UI mockup for reference (generated with nano banana pro).
From what I can tell, the chat feature only allows users to set context with cards or tags. It would be helpful for users to set context based on date ranges. For example, if a user adds 20+ resources in a week, they may want to get a "Weekend Recap/Debrief" summary.
Edge cases might include situations where users add an inordinate number of resources in a given week. Therefore, it might be helpful for the recap to summarize based on the existing tag categories in the user's knowledge base. This helps the average user establish a cadence of managing their busy lives during the work week and "catching up" during their down time.
But here's the key part: the current chat feature is powerful because the user steers the context with their question/prompt. With a time-bounded review option, the user should still have the ability to steer the review with a central question or set of prompted conditions.
Note: I realize this may work better in the Review tab, rather than the chat feature. In this setting, I think of the user as wanting an executive-level summary. This is especially helpful for staying on top of rapidly evolving trend like AI.