feat: enhance task delegation with spinner updates and progress display

- Added a spinner to visually indicate task delegation progress in quiet mode, improving user experience during batch processing.
- Implemented a method to update spinner text dynamically based on remaining tasks, providing real-time feedback.
- Enhanced the `delegate_task` function to include per-task completion messages, ensuring clarity on task status during execution.
- Updated the KawaiiSpinner class to allow message updates while running, facilitating better interaction during long-running tasks.

run_agent.py

@@ -1023,6 +1023,10 @@ class KawaiiSpinner:
         self.thread = threading.Thread(target=self._animate, daemon=True)
         self.thread.start()
     
+    def update_text(self, new_message: str):
+        """Update the spinner message text while it's running."""
+        self.message = new_message
+
     def stop(self, final_message: str = None):
         """Stop the spinner and optionally print a final message."""
         self.running = False
@@ -2978,18 +2982,37 @@ class AIAgent:
                         # Delegate task -- spawn child agent(s) with isolated context
                         elif function_name == "delegate_task":
                             from tools.delegate_tool import delegate_task as _delegate_task
-                            function_result = _delegate_task(
-                                goal=function_args.get("goal"),
-                                context=function_args.get("context"),
-                                toolsets=function_args.get("toolsets"),
-                                tasks=function_args.get("tasks"),
-                                model=function_args.get("model"),
-                                max_iterations=function_args.get("max_iterations"),
-                                parent_agent=self,
-                            )
-                            tool_duration = time.time() - tool_start_time
+                            tasks_arg = function_args.get("tasks")
+                            if tasks_arg and isinstance(tasks_arg, list):
+                                spinner_label = f"🔀 delegating {len(tasks_arg)} tasks"
+                            else:
+                                goal_preview = (function_args.get("goal") or "")[:30]
+                                spinner_label = f"🔀 {goal_preview}" if goal_preview else "🔀 delegating"
+                            spinner = None
                             if self.quiet_mode:
-                                print(f"  {self._get_cute_tool_message('delegate_task', function_args, tool_duration)}")
+                                face = random.choice(KawaiiSpinner.KAWAII_WAITING)
+                                spinner = KawaiiSpinner(f"{face} {spinner_label}", spinner_type='dots')
+                                spinner.start()
+                            # Store spinner on self so delegate_tool can update its text
+                            self._delegate_spinner = spinner
+                            try:
+                                function_result = _delegate_task(
+                                    goal=function_args.get("goal"),
+                                    context=function_args.get("context"),
+                                    toolsets=function_args.get("toolsets"),
+                                    tasks=tasks_arg,
+                                    model=function_args.get("model"),
+                                    max_iterations=function_args.get("max_iterations"),
+                                    parent_agent=self,
+                                )
+                            finally:
+                                self._delegate_spinner = None
+                                tool_duration = time.time() - tool_start_time
+                                cute_msg = self._get_cute_tool_message('delegate_task', function_args, tool_duration)
+                                if spinner:
+                                    spinner.stop(cute_msg)
+                                elif self.quiet_mode:
+                                    print(f"  {cute_msg}")
                         # Execute other tools - with animated kawaii spinner in quiet mode
                         # The face is "alive" while the tool works, then vanishes
                         # and is replaced by the clean result line.

tools/delegate_tool.py

@@ -231,7 +231,11 @@ def delegate_task(
     overall_start = time.monotonic()
     results = []
 
-    if len(task_list) == 1:
+    n_tasks = len(task_list)
+    # Track goal labels for progress display (truncated for readability)
+    task_labels = [t["goal"][:40] for t in task_list]
+
+    if n_tasks == 1:
         # Single task -- run directly (no thread pool overhead)
         t = task_list[0]
         result = _run_single_child(
@@ -245,7 +249,10 @@ def delegate_task(
         )
         results.append(result)
     else:
-        # Batch -- run in parallel
+        # Batch -- run in parallel with per-task progress lines
+        completed_count = 0
+        spinner_ref = getattr(parent_agent, '_delegate_spinner', None)
+
         with ThreadPoolExecutor(max_workers=MAX_CONCURRENT_CHILDREN) as executor:
             futures = {}
             for i, t in enumerate(task_list):
@@ -263,17 +270,35 @@ def delegate_task(
 
             for future in as_completed(futures):
                 try:
-                    results.append(future.result())
+                    entry = future.result()
                 except Exception as exc:
                     idx = futures[future]
-                    results.append({
+                    entry = {
                         "task_index": idx,
                         "status": "error",
                         "summary": None,
                         "error": str(exc),
                         "api_calls": 0,
                         "duration_seconds": 0,
-                    })
+                    }
+                results.append(entry)
+                completed_count += 1
+
+                # Print per-task completion line (visible in CLI via patch_stdout)
+                idx = entry["task_index"]
+                label = task_labels[idx] if idx < len(task_labels) else f"Task {idx}"
+                dur = entry.get("duration_seconds", 0)
+                status = entry.get("status", "?")
+                icon = "✓" if status == "completed" else "✗"
+                remaining = n_tasks - completed_count
+                print(f"  {icon} [{idx+1}/{n_tasks}] {label}  ({dur}s)")
+
+                # Update spinner text to show remaining count
+                if spinner_ref and remaining > 0:
+                    try:
+                        spinner_ref.update_text(f"🔀 {remaining} task{'s' if remaining != 1 else ''} remaining")
+                    except Exception:
+                        pass
 
         # Sort by task_index so results match input order
         results.sort(key=lambda r: r["task_index"])