diff --git a/apps/application/flow/step_node/tool_lib_node/impl/base_tool_lib_node.py b/apps/application/flow/step_node/tool_lib_node/impl/base_tool_lib_node.py
index 7b036291e..ea410c459 100644
--- a/apps/application/flow/step_node/tool_lib_node/impl/base_tool_lib_node.py
+++ b/apps/application/flow/step_node/tool_lib_node/impl/base_tool_lib_node.py
@@ -196,7 +196,7 @@ class BaseToolLibNodeNode(IToolLibNode):
         else:
             all_params = init_params_default_value | params
         if self.node.properties.get('kind') == 'data-source':
-            exist = function_executor.exist_function(tool_lib.code, 'get_download_file_list')
+            exist = function_executor.exec_code(f'{tool_lib.code}\\ndef function_exist(function_name): return callable(globals().get(function_name))', {'function_name': 'get_download_file_list'})
             if exist:
                 download_file_list = []
                 download_list = function_executor.exec_code(tool_lib.code,
diff --git a/apps/common/utils/tool_code.py b/apps/common/utils/tool_code.py
index a57262d64..f38460c76 100644
--- a/apps/common/utils/tool_code.py
+++ b/apps/common/utils/tool_code.py
@@ -74,47 +74,6 @@ class ToolExecutor:
     except Exception as e:
         maxkb_logger.error(f'Exception: {e}', exc_info=True)
 
-    def exist_function(self, code_str, name):
-        _id = str(uuid.uuid7())
-        python_paths = CONFIG.get_sandbox_python_package_paths().split(',')
-        set_run_user = f'os.setgid({pwd.getpwnam(_run_user).pw_gid});os.setuid({pwd.getpwnam(_run_user).pw_uid});' if _enable_sandbox else ''
-        _exec_code = f"""
-try:
-    import os, sys, json
-    path_to_exclude = ['/opt/py3/lib/python3.11/site-packages', '/opt/maxkb-app/apps']
-    sys.path = [p for p in sys.path if p not in path_to_exclude]
-    sys.path += {python_paths}
-    locals_v={{}}
-    globals_v={{}}
-    {set_run_user}
-    os.environ.clear()
-    exec({dedent(code_str)!a}, globals_v, locals_v)
-    exec_result=locals_v.__contains__('{name}')
-    sys.stdout.write("\\n{_id}:")
-    json.dump({{'code':200,'msg':'success','data':exec_result}}, sys.stdout, default=str)
-except Exception as e:
-    if isinstance(e, MemoryError): e = Exception("Cannot allocate more memory: exceeded the limit of {_process_limit_mem_mb} MB.")
-    sys.stdout.write("\\n{_id}:")
-    json.dump({{'code':500,'msg':str(e),'data':False}}, sys.stdout, default=str)
-sys.stdout.flush()    
-        """
-        maxkb_logger.debug(f"Sandbox execute code: {_exec_code}")
-        with tempfile.NamedTemporaryFile(mode='w', suffix='.py', delete=True) as f:
-            f.write(_exec_code)
-            f.flush()
-            subprocess_result = self._exec(f.name)
-        if subprocess_result.returncode != 0:
-            raise Exception(subprocess_result.stderr or subprocess_result.stdout or "Unknown exception occurred")
-        lines = subprocess_result.stdout.splitlines()
-        result_line = [line for line in lines if line.startswith(_id)]
-        if not result_line:
-            maxkb_logger.error("\n".join(lines))
-            raise Exception("No result found.")
-        result = json.loads(result_line[-1].split(":", 1)[1])
-        if result.get('code') == 200:
-            return result.get('data')
-        raise Exception(result.get('msg'))
-
     def exec_code(self, code_str, keywords, function_name=None):
         _id = str(uuid.uuid7())
         action_function = f'({function_name !a}, locals_v.get({function_name !a}))' if function_name else 'locals_v.popitem()'