diff --git a/check/check.py b/check/check.py
index d3027329..12dcd6aa 100755
--- a/check/check.py
+++ b/check/check.py
@@ -19,6 +19,7 @@ class DesignError(RuntimeError):
     """Raised when a workflow design cannot be loaded or validated."""
 
 
+
 def _allowed_node_types() -> set[str]:
     names = set(iter_node_schemas().keys())
     if not names:
@@ -72,9 +73,7 @@ def load_config(
 
     data = prepare_design_mapping(raw_data, source=str(config_path))
 
-    schema_errors = validate_design(
-        data, set_defaults=set_defaults, fn_module_ref=fn_module
-    )
+    schema_errors = validate_design(data, set_defaults=set_defaults, fn_module_ref=fn_module)
     if schema_errors:
         formatted = "\n".join(f"- {err}" for err in schema_errors)
         raise DesignError(f"Design validation failed for '{config_path}':\n{formatted}")
@@ -87,9 +86,7 @@ def load_config(
     logic_errors = check_workflow_structure(data)
     if logic_errors:
         formatted = "\n".join(f"- {err}" for err in logic_errors)
-        raise DesignError(
-            f"Workflow logical issues detected for '{config_path}':\n{formatted}"
-        )
+        raise DesignError(f"Workflow logical issues detected for '{config_path}':\n{formatted}")
     else:
         print("Workflow OK.")
 
@@ -121,29 +118,4 @@ def check_config(yaml_content: Any) -> str:
     except Exception as e:
         return str(e)
 
-    return ""
-
-
-def main():
-    import argparse
-    import sys
-
-    parser = argparse.ArgumentParser(description="Validate workflow design file.")
-    parser.add_argument(
-        "--path", type=Path, required=True, help="Path to the design file."
-    )
-    args = parser.parse_args()
-
-    try:
-        load_config(args.path)
-        print(f"Design '{args.path}' is valid.")
-    except DesignError as e:
-        print(f"Validation failed: {e}")
-        sys.exit(1)
-    except Exception as e:
-        print(f"An unexpected error occurred: {e}")
-        sys.exit(1)
-
-
-if __name__ == "__main__":
-    main()
+    return ""
\ No newline at end of file