Your question is Choose Metrics for Feature Success. 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 feature and want to understand whether it actually created value. The team cares about adoption, user behavior change, and whether the feature improves the product over time rather than just generating short-term activity.
What metrics would you use to evaluate the success of a product feature?