Worked on the grafana/prometheus repository to enhance the reliability and observability of the LeveledCompactor component using Go and backend development skills. Introduced graceful interruption by implementing context cancellation during block opening, which improved responsiveness and reduced the risk of stuck operations under load. Developed a metrics-capable constructor and extended LeveledCompactorOptions with a metrics field, enabling real-time monitoring and alerting for the compaction process. These system design improvements provided better visibility into pipeline performance, allowing for faster issue diagnosis and more effective performance tuning, ultimately contributing to more stable operation and stronger service level agreements for the system.