March 2026 monthly summary for databricks/thanos: Delivered two instrumentation-focused features enhancing observability and protection rule tracking in the TSDB receive path and range query processing. Implemented TSDB commit duration metric in the receive writer to improve latency visibility and performance tuning. Added protection statistics to the range query log to track rule triggers and actions during query processing. No major bugs fixed this month; focus was on instrumentation, monitoring, and data-driven insights. Business impact: faster issue detection and resolution, improved capacity planning and performance optimization through enhanced visibility. Technologies/skills demonstrated: metrics instrumentation, observability patterns, range query logging, alignment with ENGMP-365, code collaboration.