During January 2026, Dave Raff focused on enhancing the reliability of monitoring dashboards in the GoogleCloudPlatform/monitoring-dashboard-samples repository. He addressed a critical issue in Prometheus queries by correcting the calculation of node CPU core counts over extended time ranges, which previously led to inaccurate capacity metrics and misleading alerts. Working primarily with Kubernetes, Prometheus, and JSON-based dashboard configurations, Dave’s fix improved the accuracy of data visualizations and enabled more dependable capacity planning. His contribution demonstrated a strong grasp of PromQL and Git-based workflows, delivering a targeted solution that increased trust in monitoring data without introducing new features or unnecessary complexity.