diff --git a/packages/stac_core/lib/annotations/annotations.dart b/packages/stac_core/lib/annotations/annotations.dart
new file mode 100644
index 00000000..0b3ece7b
--- /dev/null
+++ b/packages/stac_core/lib/annotations/annotations.dart
@@ -0,0 +1,3 @@
+library;
+
+export 'stac_screen.dart';
diff --git a/packages/stac_core/lib/annotations/stac_screen.dart b/packages/stac_core/lib/annotations/stac_screen.dart
new file mode 100644
index 00000000..b8261afe
--- /dev/null
+++ b/packages/stac_core/lib/annotations/stac_screen.dart
@@ -0,0 +1,20 @@
+/// Annotation to mark methods that return StacWidget instances.
+///
+/// This annotation is used to identify screen-level widgets in the Stac framework.
+/// Methods that return StacWidget should be annotated with this to indicate
+/// they represent screen definitions.
+///
+/// Example usage:
+/// ```dart
+/// @StacScreen(screenName: 'home')
+/// StacWidget buildHomeScreen() {
+///   return StacWidget(jsonData: {'type': 'scaffold', 'body': '...'});
+/// }
+/// ```
+class StacScreen {
+  /// Creates a [StacScreen] annotation with the given screen name.
+  const StacScreen({required this.screenName});
+
+  /// The name identifier for this screen.
+  final String screenName;
+}
diff --git a/packages/stac_core/lib/core/core.dart b/packages/stac_core/lib/core/core.dart
index 2b585799..9b3c3f1d 100644
--- a/packages/stac_core/lib/core/core.dart
+++ b/packages/stac_core/lib/core/core.dart
@@ -2,3 +2,4 @@ library;
 
 export 'stac_action.dart';
 export 'stac_widget.dart';
+export '../annotations/annotations.dart';
diff --git a/packages/stac_core/lib/stac_core.dart b/packages/stac_core/lib/stac_core.dart
index faf36892..694a0c44 100644
--- a/packages/stac_core/lib/stac_core.dart
+++ b/packages/stac_core/lib/stac_core.dart
@@ -1,6 +1,7 @@
 library;
 
 export 'actions/actions.dart';
+export 'annotations/annotations.dart';
 export 'core/core.dart';
 export 'foundation/foundation.dart';
 export 'widgets/widgets.dart';