Watchdog Insights is a feature developed by Datadog that helps monitor highly distributed applications by automatically detecting errors, high latency, and root causes of issues. It watches indexed spans returned by Trace Analytics queries in real-time, scans all available tags, and identifies tagged objects associated with higher-than-usual error rates or latency. This enables devops teams to quickly identify issues and dig deeper into relevant traces, services, infrastructure components, and code profiles to discover possible root causes. Watchdog Insights is embedded in Datadog's Trace Analytics UI, allowing users to investigate indexed spans and outlier data in a single view, and provides features such as drilling down into tags, identifying outliers in multi-tenant architecture, spotting feature flag performance degradation, and leveraging AIOps-driven features for log management, metric correlations, and log patterns.