```diff
--- test_files/074-original.txt	2025-03-07 19:06:18
+++ test_files/074-modified.txt	2025-03-07 19:06:18
@@ -21,6 +21,8 @@
 
 
 class SomeTool(LocalTool, autoload=True):
+    logo = ""
+
     @classmethod
     def actions(cls) -> List[type[LocalAction]]:
         return [SomeAction]
@@ -48,5 +50,5 @@
             },
         )
 
-        assert not response["successfull"]
+        assert not response["successful"]
         assert "Following fields are missing: {'name'}" in response["error"]
```
