Worked on enhancing observability in the azure-sdk-for-go repository by integrating OpenTelemetry tracing into the ReadManyItems function. Focused on backend and API development using Go, the work involved refactoring internal query handling to wrap each HTTP round-trip with dedicated tracing spans, ensuring comprehensive visibility in distributed traces. This approach addressed previous blind spots in latency diagnosis and improved diagnostics for internal queries. The implementation included targeted tests to validate tracing functionality and error handling, with explicit measures to ensure deterministic test outcomes. Updates were documented in the changelog, and code formatting was maintained to align with project standards and reliability goals.