diff --git a/packages/agent_dart/lib/frb.dart b/packages/agent_dart/lib/frb.dart
index 2ba59555..8da1740f 100644
--- a/packages/agent_dart/lib/frb.dart
+++ b/packages/agent_dart/lib/frb.dart
@@ -1 +1,2 @@
+/// Documents packages/agent_dart/lib/frb.dart module purpose, public surface, and usage context
 export 'package:agent_dart_base/frb.dart';