update app.py

app.py

@@ -345,8 +345,8 @@ def create_app():
                     scale=2,
                 )
                 group_input = gr.Textbox(
-                    label="Group ID",
-                    placeholder=f"Enter group ID (1-{NUM_GROUPS})",
+                    label="Group ID (auto-assigned, you may override)",
+                    placeholder=f"Auto-assigned (1-{NUM_GROUPS})",
                     value="",
                     scale=2,
                 )
@@ -356,12 +356,7 @@ def create_app():
 
             def load_group(group_id: str, evaluator_id: str):
                 if not group_id:
-                    return (
-                        "*Please enter a Group ID*",
-                        evaluator_id,
-                        group_id,
-                        {},
-                    )
+                    group_id = str(random.randint(1, NUM_GROUPS))
                 config = get_or_create_group_config(group_id)
                 stories = config.get("stories", [])
                 agents = config.get("agents", [])
@@ -378,12 +373,12 @@ def create_app():
                     f"**Created:** {config.get('created_at', 'N/A')}\n\n"
                     f"Go to the **Preference Evaluation** tab to start ranking."
                 )
-                return info_md, evaluator_id, group_id, config
+                return info_md, evaluator_id, group_id, config, gr.update(value=group_id)
 
             load_group_btn.click(
                 load_group,
                 inputs=[group_input, evaluator_input],
-                outputs=[group_info, current_evaluator, current_group, group_config_state],
+                outputs=[group_info, current_evaluator, current_group, group_config_state, group_input],
             )
 
         # ================================================================