diff --git a/docs/core/tracer.md b/docs/core/tracer.md index b5a3baf386..2283fc962b 100644 --- a/docs/core/tracer.md +++ b/docs/core/tracer.md @@ -48,6 +48,8 @@ For a **complete list** of supported environment variables, refer to [this secti #### Example using AWS Serverless Application Model (SAM) +The `Tracer` utility is instantiated outside of the Lambda handler. In doing this, the same instance can be used across multiple invocations inside the same execution environment. This allows `Metrics` to be aware of things like whether or not a given invocation had a cold start or not. + === "handler.ts" ```typescript hl_lines="1 4"