Your question is Measure Real Feature Value. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You've shipped a product change and want to understand its full impact. The team cares about both immediate engagement signals and longer-term retention, and wants to avoid mistaking short bursts of activity for durable value.
How would you analyze whether a feature is creating real user value or just short-term engagement?