Kelly H. enhanced observability and performance analysis in the JetBrains/hirschgarten repository by implementing a metrics granularity feature for Bazel sync operations. Using Kotlin and focusing on backend development, Kelly added the project name as an attribute to the bsp.sync.project.ms span, enabling per-project synchronization performance tracking. This approach improved the precision of metrics collection and allowed for more effective filtering and root-cause analysis in distributed tracing dashboards. The work demonstrated a strong understanding of metrics instrumentation and observability design in a multi-repo environment, supporting better data-driven optimization and resource planning without introducing new bugs during the development period.