Your question is Essential System Performance Metrics. 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 are responsible for a system that supports time-sensitive workflows, and the team needs a clear way to monitor performance without drowning in dashboards. Some metrics help catch issues quickly, while others show whether reliability problems are affecting downstream outcomes over time.
What metrics do you consider essential for monitoring system performance?