note that Error objects are auto-serialized in JSONConsumer

Author: mertcanaltin

doc/api/logger.md

@@ -560,6 +560,12 @@ JSON-serializable will cause an error at log time:
 * Functions are silently omitted by `JSON.stringify()`.
 * Circular references throw a `TypeError`.
 
+`Error` objects are an exception to this rule. Although `JSON.stringify()`
+serializes `Error` instances as `'{}'` (because their properties are
+non-enumerable), the logger handles them automatically using the built-in
+[`stdSerializers.err()`][] serializer, which extracts `type`, `message`,
+`stack`, and the `cause` chain.
+
 To log `BigInt` values, convert them to strings or numbers first:
 
 ```js
@@ -898,4 +904,5 @@ consumer.attach();
 ```
 
 [RFC 5424]: https://www.rfc-editor.org/rfc/rfc5424.html
+[`stdSerializers.err()`]: #stdserializerserrerror
 [`util.inspect.custom`]: util.md#utilinspectcustom