Update app.py

app.py

@@ -609,12 +609,30 @@ def run_and_submit_all(profile: gr.OAuthProfile | None):
 
         # Download the attachment (if the task has one) and point the agent at it.
         # download_attachment never raises; it returns None if there is no file.
+        # The /questions endpoint includes "file_name" only for tasks that have an
+        # attachment, so we know in advance whether a file is required.
+        expected_file = item.get("file_name")
         attachment_path = download_attachment(api_url, task_id)
+
+        if expected_file and not attachment_path:
+            # The task needs a file but the server didn't give us one. Running the
+            # agent would only produce a guess or a refusal, so skip it cleanly.
+            print(f"Task {task_id} requires '{expected_file}' but it could not be downloaded; skipping.")
+            results_log.append({
+                "Task ID": task_id,
+                "Question": question_text,
+                "Submitted Answer": "",
+                "Status": f"ATTACHMENT MISSING: {expected_file}",
+            })
+            continue
+
         agent_question = question_text
         if attachment_path:
             agent_question += (
-                f"\n\nAn attached file for this task is saved locally at: "
-                f"{attachment_path}\nUse the read_attachment tool to read it."
+                f"\n\nAn attached file for this task (original name: "
+                f"{expected_file or os.path.basename(attachment_path)}) is saved "
+                f"locally at: {attachment_path}\n"
+                f"Use the read_attachment tool to read it."
             )
 
         try: