Default agentic_app_blueprint_id to app client id in get_agentic_identity

packages/apps/src/microsoft_teams/apps/app.py

@@ -341,16 +341,21 @@ def get_agentic_identity(
         tenant_id: Optional[str] = None,
         agentic_app_blueprint_id: Optional[str] = None,
     ) -> AgenticIdentity:
-        """Get an Agent ID identity for API calls."""
+        """Get an Agent ID identity for API calls.
+
+        When ``agentic_app_blueprint_id`` is omitted, it defaults to the app's own
+        client/app id (``self.id``).
+        """
         resolved_tenant_id = tenant_id or (self.credentials.tenant_id if self.credentials else None)
         if resolved_tenant_id is None:
             raise ValueError("tenant_id is required to get an agentic identity")
 
+        resolved_blueprint_id = agentic_app_blueprint_id or self.id
         return AgenticIdentity(
             agentic_app_id=agentic_app_id,
             agentic_user_id=agentic_user_id,
             tenant_id=resolved_tenant_id,
-            agentic_app_blueprint_id=agentic_app_blueprint_id,
+            agentic_app_blueprint_id=resolved_blueprint_id,
         )
 
     @overload

packages/apps/tests/test_app.py

@@ -834,6 +834,34 @@ async def test_send_passes_agentic_identity_and_service_url(self, mock_storage)
         }
         assert result.id == "sent-activity-id"
 
+    def test_get_agentic_identity_preserves_explicit_blueprint_id(self, mock_storage) -> None:
+        """An explicitly provided agentic_app_blueprint_id should be preserved."""
+        options = AppOptions(storage=mock_storage, client_id="test-client-id", client_secret="test-secret")
+        app = App(**options)
+
+        identity = app.get_agentic_identity(
+            "agentic-app-id",
+            "agentic-user-id",
+            tenant_id="tenant-id",
+            agentic_app_blueprint_id="explicit-blueprint-id",
+        )
+
+        assert identity.agentic_app_blueprint_id == "explicit-blueprint-id"
+
+    def test_get_agentic_identity_defaults_blueprint_id_to_client_id(self, mock_storage) -> None:
+        """When agentic_app_blueprint_id is omitted, it should default to the app's client id."""
+        options = AppOptions(storage=mock_storage, client_id="test-client-id", client_secret="test-secret")
+        app = App(**options)
+
+        identity = app.get_agentic_identity(
+            "agentic-app-id",
+            "agentic-user-id",
+            tenant_id="tenant-id",
+        )
+
+        assert identity.agentic_app_blueprint_id == app.id
+        assert identity.agentic_app_blueprint_id == "test-client-id"
+
 
 class TestAppInitialize:
     """Test cases for App.initialize() method."""