Since its release in 2015, the Serverless Framework has become a popular tool for managing and deploying serverless applications by allowing users to define infrastructure as code for easy sharing and version control. To enhance observability, Datadog developed a Serverless plugin that provides real-time visibility into AWS Lambda functions without requiring code changes, addressing challenges like monitoring performance and detecting errors. The plugin supports Node.js and Python functions and integrates with AWS X-Ray for end-to-end tracing, which is crucial as serverless applications often operate as part of larger systems. Users can configure custom metrics and explore key performance data via Datadog's platform, enabling efficient monitoring of serverless environments.