diff --git a/core/management/commands/check_connectors.py b/core/management/commands/check_connectors.py
index 9711525..fd419b3 100644
--- a/core/management/commands/check_connectors.py
+++ b/core/management/commands/check_connectors.py
@@ -66,7 +66,8 @@ class Command(BaseCommand):
             from apps.mattermost_connector.mattermost_service import MattermostService
             svc = MattermostService(role='provisioning')
             me = svc.driver.users.get_user('me')
-            return 'OK', f"бот @{me.get('username', '?')} (роль {svc.bot.role})"
+            caps = ', '.join(svc.bot.caps()) or '—'
+            return 'OK', f"бот @{me.get('username', '?')} (возможности: {caps})"
         except Exception as e:  # noqa: BLE001 — диагностика: любая ошибка = FAIL
             return 'FAIL', f'{type(e).__name__}: {e}'
 
diff --git a/core/tests_check_connectors.py b/core/tests_check_connectors.py
index e01fb03..b182dee 100644
--- a/core/tests_check_connectors.py
+++ b/core/tests_check_connectors.py
@@ -38,3 +38,26 @@ class CheckConnectorsTests(TestCase):
         self.assertIn('nextcloud', text)
         self.assertNotIn('mattermost', text)
         self.assertNotIn('s3', text)
+
+    def test_mattermost_ok_branch_formats(self):
+        """OK-ветка Mattermost обращается к реальным атрибутам бота (caps()),
+        а не к несуществующему .role — регрессия на AttributeError."""
+        from core.models import ConnectorConfig
+        ConnectorConfig.objects.create(
+            connector_type='mattermost', is_enabled=True, host='mm.local',
+        )
+
+        fake_svc = mock.Mock()
+        fake_svc.driver.users.get_user.return_value = {'username': 'acore-bot', 'id': 'x1'}
+        fake_svc.bot.caps.return_value = ['Провижининг (сотрудники)']
+
+        out = StringIO()
+        with mock.patch(
+            'apps.mattermost_connector.mattermost_service.MattermostService',
+            return_value=fake_svc,
+        ):
+            call_command('check_connectors', 'mattermost', stdout=out)
+        text = out.getvalue()
+        self.assertIn('OK', text)
+        self.assertIn('@acore-bot', text)
+        self.assertIn('Провижининг', text)