Restore behavior where 'kumacli monitor' shows the subcommands

src/kumacli/cmd/maintenance.py

@@ -182,6 +182,7 @@ def setup_maintenance_parser(subparsers):
     maintenance_parser = subparsers.add_parser(
         "maintenance", help="Maintenance operations"
     )
+    setup_maintenance_parser.parser = maintenance_parser
     maintenance_subparsers = maintenance_parser.add_subparsers(
         dest="maintenance_action", help="Maintenance actions"
     )
@@ -239,9 +240,7 @@ def handle_maintenance_command(args, client):
     maintenance_commands = MaintenanceCommands(client)
 
     if not args.maintenance_action:
-        print(
+        setup_maintenance_parser.parser.print_help()
-            "Error: No maintenance action specified. Use --help for usage information."
-        )
         return False
     if args.maintenance_action == "list":
         maintenance_commands.list_maintenances()

src/kumacli/cmd/monitor.py

@@ -162,6 +162,7 @@ class MonitorCommands:
 def setup_monitor_parser(subparsers):
     """Setup monitor command parser"""
     monitor_parser = subparsers.add_parser("monitor", help="Monitor operations")
+    setup_monitor_parser.parser = monitor_parser
     monitor_subparsers = monitor_parser.add_subparsers(
         dest="monitor_action", help="Monitor actions"
     )
@@ -222,7 +223,7 @@ def handle_monitor_command(args, client):
     monitor_commands = MonitorCommands(client)
 
     if not args.monitor_action:
-        print("Error: No monitor action specified. Use --help for usage information.")
+        setup_monitor_parser.parser.print_help()
         return False
     if args.monitor_action == "list":
         monitor_commands.list_monitors(

tests/test_cli_integration.py

@@ -50,13 +50,16 @@ class TestCLIIntegration:
         mock_args = Mock()
         mock_args.monitor_action = None
 
+        # Setup parser reference to simulate having called setup_monitor_parser
+        mock_parser = Mock()
+        setup_monitor_parser.parser = mock_parser
+
         # Execute
         result = handle_monitor_command(mock_args, mock_client)
 
         # Verify
         assert result is False
-        captured = capsys.readouterr()
+        mock_parser.print_help.assert_called_once()
-        assert "Error: No monitor action specified" in captured.out
 
     def test_maintenance_help_message(self, mock_client, capsys):
         """Test maintenance command shows help when no action specified"""
@@ -64,13 +67,16 @@ class TestCLIIntegration:
         mock_args = Mock()
         mock_args.maintenance_action = None
 
+        # Setup parser reference to simulate having called setup_maintenance_parser
+        mock_parser = Mock()
+        setup_maintenance_parser.parser = mock_parser
+
         # Execute
         result = handle_maintenance_command(mock_args, mock_client)
 
         # Verify
         assert result is False
-        captured = capsys.readouterr()
+        mock_parser.print_help.assert_called_once()
-        assert "Error: No maintenance action specified" in captured.out
 
     def test_monitor_command_with_full_args(self, mock_client):
         """Test monitor command with complete argument structure"""