chore: remove agent turn limits

api/core/agent/cot_agent_runner.py

@@ -63,7 +63,7 @@ class CotAgentRunner(BaseAgentRunner, ABC):
         self._instruction = self._fill_in_inputs_from_external_data_tools(instruction, inputs)
 
         iteration_step = 1
-        max_iteration_steps = min(app_config.agent.max_iteration if app_config.agent else 5, 5) + 1
+        max_iteration_steps = max(app_config.agent.max_iteration if app_config.agent else 5, 5) + 1
 
         # convert tools into ModelRuntime Tool format
         tool_instances, prompt_messages_tools = self._init_prompt_tools()

api/core/agent/fc_agent_runner.py

@@ -48,7 +48,7 @@ class FunctionCallAgentRunner(BaseAgentRunner):
         assert app_config.agent
 
         iteration_step = 1
-        max_iteration_steps = min(app_config.agent.max_iteration, 5) + 1
+        max_iteration_steps = max(app_config.agent.max_iteration, 5) + 1
 
         # continue to run until there is not any tool call
         function_call_state = True