Kaustubh worked on the grafana/tempo repository, focusing on backend development and cloud storage integration using Go. During the month, he addressed a critical issue in the cloud storage delete path, ensuring that prefix handling was consistent across S3, GCS, and Azure backends. By updating the Find function to return unprefixed keys, he prevented incorrect path targeting and potential data loss during deletions. He also improved test coverage to validate both prefixed and unprefixed scenarios, aligning delete logic with List semantics. This work enhanced the reliability and safety of multi-tenant storage operations, reflecting careful attention to backend robustness and testing.