feat: Add empty response counter logic to ask user for confirmation after 5 retries

ga.py

@@ -443,8 +443,17 @@ class GenericAgentHandler(BaseHandler):
         content = getattr(response, 'content', '') or ""
         thinking = getattr(response, 'thinking', '') or ""
         if not response or (not content.strip() and not thinking.strip()):
+            count = self.working.get('empty_response_count', 0) + 1
+            self.working['empty_response_count'] = count
+            if count >= 5:
+                yield f"[Warn] LLM returned an empty response {count} times. Asking user for confirmation.\n"
+                return StepOutcome({}, next_prompt="[SYSTEM] LLM has returned empty responses 5 or more times. Please ask the user if they want to continue or stop.")
             yield "[Warn] LLM returned an empty response. Retrying...\n"
             return StepOutcome({}, next_prompt="[System] Blank response, regenerate and tooluse")
+        
+        # Reset counter on successful non-empty response
+        if self.working.get('empty_response_count', 0) > 0:
+            self.working['empty_response_count'] = 0
         if len(content) > 100 and ('未收到完整响应 !!!]' in content[-100:] or '!!!Error: [SSL:' in content[-100:]):
             return StepOutcome({}, next_prompt="[System] Incomplete response. Regenerate and tooluse.")
         if 'max_tokens !!!]' in content[-100:]: