Worked on enhancing telemetry reliability and observability in the argoproj/argo-workflows repository by addressing a critical issue in metric reporting. Focused on correcting the telemetry metrics counter, the developer replaced the Float64ObservableUpDownCounter with Float64ObservableCounter and updated the CreateInstrument function to align with related types. This adjustment improved the accuracy of workflow run metrics, supporting more reliable dashboards, alerts, and capacity planning for users and SRE teams. The work, implemented in Go and centered on metrics and telemetry, also standardized counter usage across the instrumentation layer, reducing the risk of metric misreporting and improving code maintainability within the telemetry subsystem.