patch

app.py

@@ -26,6 +26,8 @@ def download_image_locally(image_url: str, local_path: str = "downloaded_image.p
     Returns:
         str: The filesystem path of the saved file – suitable for returning to a **gr.File** output, or as an MCP tool response.
     """
+    if local_path == "":
+        local_path = "downloaded_image.png"
     response = requests.get(image_url, timeout=30)
     response.raise_for_status()
     # If the caller passed only a filename, save into a temporary directory to avoid permission issues
@@ -170,7 +172,10 @@ with gr.Blocks(css=css) as demo:
 
         with gr.Accordion("Download Image from URL", open=False):
             image_url_input = gr.Text(label="Image URL", placeholder="Enter image URL (e.g., http://.../image.png)")
-            filename_input = gr.Text(label="Filename (optional)", placeholder="downloaded_image.png")
+            filename_input = gr.Text(
+                label="Filename (optional)",
+                placeholder=" Filename",
+            )
             download_from_url_btn = gr.Button("Download Image")
             downloaded_file_output = gr.File(label="Downloaded File")