diff --git a/lib/galaxy/tool_util/verify/interactor.py b/lib/galaxy/tool_util/verify/interactor.py
index fc9e43db7b3..f4971545bf9 100644
--- a/lib/galaxy/tool_util/verify/interactor.py
+++ b/lib/galaxy/tool_util/verify/interactor.py
@@ -1273,16 +1273,16 @@ def verify_tool(
     publish_history: bool = False,
     force_path_paste: bool = False,
     maxseconds: int = DEFAULT_TOOL_TEST_WAIT,
-    tool_test_dicts: Optional[ToolTestDictsT] = None,
     client_test_config: Optional[TestConfig] = None,
     skip_with_reference_data: bool = False,
     skip_on_dynamic_param_errors: bool = False,
+    _tool_test_dicts: Optional[ToolTestDictsT] = None,  # extension point only for tests
 ):
     if resource_parameters is None:
         resource_parameters = {}
     if client_test_config is None:
         client_test_config = NullClientTestConfig()
-    tool_test_dicts = tool_test_dicts or galaxy_interactor.get_tool_tests(tool_id, tool_version=tool_version)
+    tool_test_dicts = _tool_test_dicts or galaxy_interactor.get_tool_tests(tool_id, tool_version=tool_version)
     tool_test_dict = tool_test_dicts[test_index]
     if "test_index" not in tool_test_dict:
         tool_test_dict["test_index"] = test_index
diff --git a/lib/galaxy_test/api/test_tools.py b/lib/galaxy_test/api/test_tools.py
index 0c0ef834c77..8db355afed9 100644
--- a/lib/galaxy_test/api/test_tools.py
+++ b/lib/galaxy_test/api/test_tools.py
@@ -1472,7 +1472,7 @@ class TestToolsApi(ApiTestCase, TestsTools):
         dynamic_param_error = None
         test_driver = self.driver_or_skip_test_if_remote()
         try:
-            test_driver.run_tool_test("dbkey_output_action", tool_test_dicts=tool_test_dicts)
+            test_driver.run_tool_test("dbkey_output_action", _tool_test_dicts=tool_test_dicts)
         except Exception as e:
             dynamic_param_error = getattr(e, "dynamic_param_error", False)
         assert dynamic_param_error is None
@@ -1486,7 +1486,7 @@ class TestToolsApi(ApiTestCase, TestsTools):
         )
         dynamic_param_error = None
         try:
-            test_driver.run_tool_test("dbkey_output_action", tool_test_dicts=tool_test_dicts)
+            test_driver.run_tool_test("dbkey_output_action", _tool_test_dicts=tool_test_dicts)
         except Exception as e:
             dynamic_param_error = getattr(e, "dynamic_param_error", False)
         assert dynamic_param_error
@@ -1501,7 +1501,7 @@ class TestToolsApi(ApiTestCase, TestsTools):
         dynamic_param_error = None
         try:
             test_driver.run_tool_test(
-                "dbkey_output_action", tool_test_dicts=tool_test_dicts, register_job_data=register_job_data
+                "dbkey_output_action", _tool_test_dicts=tool_test_dicts, register_job_data=register_job_data
             )
         except Exception as e:
             dynamic_param_error = getattr(e, "dynamic_param_error", False)
@@ -1515,7 +1515,7 @@ class TestToolsApi(ApiTestCase, TestsTools):
         try:
             test_driver.run_tool_test(
                 "dbkey_output_action",
-                tool_test_dicts=tool_test_dicts,
+                _tool_test_dicts=tool_test_dicts,
                 skip_on_dynamic_param_errors=True,
                 register_job_data=register_job_data,
             )