Use agent by default

Author: VitjanZ

plain2code_arguments.py

@@ -356,8 +356,15 @@ def create_parser():
     parser.add_argument(
         "--use-agent",
         action="store_true",
-        default=False,
-        help="Use agentic loop for fixing unit tests instead of the default iterative approach.",
+        default=True,
+        help="Use agentic loop for rendering and fixing tests (default: enabled).",
+    )
+
+    parser.add_argument(
+        "--no-agent",
+        dest="use_agent",
+        action="store_false",
+        help="Disable agentic loop; use the legacy iterative approach instead.",
     )
 
     parser.add_argument(