Igor Raits developed robust backend features for grafana/mcp-grafana and StarRocks/starrocks over a two-month period, focusing on error handling and database integration. For grafana/mcp-grafana, he centralized error handling for Prometheus and Loki validation, introducing typed errors in Go to distinguish user input issues from system failures, which improved client-side error recovery and observability. He also enhanced Loki metric querying with better label parsing and response structures. In StarRocks/starrocks, Igor implemented a configurable schema resolver property for JDBC catalogs using Java, increasing compatibility with non-standard JDBC drivers. His work demonstrated depth in API design, backend development, and database management.