diff --git a/backend/packages/harness/deerflow/tools/builtins/view_image_tool.py b/backend/packages/harness/deerflow/tools/builtins/view_image_tool.py
index 21d662373..e47ab1938 100644
--- a/backend/packages/harness/deerflow/tools/builtins/view_image_tool.py
+++ b/backend/packages/harness/deerflow/tools/builtins/view_image_tool.py
@@ -9,7 +9,6 @@ from langgraph.types import Command
 from langgraph.typing import ContextT
 
 from deerflow.agents.thread_state import ThreadState
-from deerflow.sandbox.tools import get_thread_data, replace_virtual_path
 
 
 @tool("view_image", parse_docstring=True)
@@ -32,6 +31,8 @@ def view_image_tool(
     Args:
         image_path: Absolute path to the image file. Common formats supported: jpg, jpeg, png, webp.
     """
+    from deerflow.sandbox.tools import get_thread_data, replace_virtual_path
+
     # Replace virtual path with actual path
     # /mnt/user-data/* paths are mapped to thread-specific directories
     thread_data = get_thread_data(runtime)