fix: use unquoted type names in model descriptions

Co-Authored-By: Joe Moura <joao@crewai.com>

src/crewai/utilities/converter.py

@@ -327,9 +327,9 @@ def generate_model_description(model: Type[BaseModel]) -> str:
         elif isinstance(field_type, type) and issubclass(field_type, BaseModel):
             return generate_model_description(field_type)
         elif hasattr(field_type, "__name__"):
-            return f'"{field_type.__name__}"'
+            return field_type.__name__
         else:
-            return f'"{str(field_type)}"'
+            return str(field_type)
 
     fields = model.model_fields
     field_descriptions = []

tests/utilities/test_converter.py

@@ -369,7 +369,7 @@ def test_generate_model_description_with_empty_description():
         age: int = Field(..., description=None)
         
     description = generate_model_description(ModelWithEmptyDescription)
-    expected = '{\n  "name": "str",\n  "age": "int"\n}'
+    expected = '{\n  "name": str,\n  "age": int\n}'
     assert description == expected