diff --git a/tests/agent/test_auxiliary_config_bridge.py b/tests/agent/test_auxiliary_config_bridge.py
index 890e54d1a8..3291fe2869 100644
--- a/tests/agent/test_auxiliary_config_bridge.py
+++ b/tests/agent/test_auxiliary_config_bridge.py
@@ -139,9 +139,11 @@ class TestGatewayBridgeCodeParity:
         content = gateway_path.read_text(encoding="utf-8")
         # Dynamic env-var derivation present
         assert 'f"AUXILIARY_{_upper}_PROVIDER"' in content
-        assert 'f"AUXILIARY_{_upper}_MODEL"' in content
-        assert 'f"AUXILIARY_{_upper}_BASE_URL"' in content
-        assert 'f"AUXILIARY_{_upper}_API_KEY"' in content
+        # MODEL / BASE_URL / API_KEY are bridged through one generalized
+        # field->suffix loop; assert the loop table and the dynamic key shape.
+        assert 'f"AUXILIARY_{_upper}_{_suffix}"' in content
+        for field, suffix in (("model", "MODEL"), ("base_url", "BASE_URL"), ("api_key", "API_KEY")):
+            assert f'("{field}", "{suffix}")' in content
         # Built-in bridged keys present
         assert "_aux_bridged_keys" in content
         assert '"vision"' in content