diff --git a/metagpt/actions/prepare_documents.py b/metagpt/actions/prepare_documents.py
index 696dc9a89..9b5128cbd 100644
--- a/metagpt/actions/prepare_documents.py
+++ b/metagpt/actions/prepare_documents.py
@@ -25,7 +25,6 @@ from metagpt.utils.git_repository import GitRepository
 
 class PrepareDocuments(Action):
     """PrepareDocuments Action: initialize project folder and add new requirements to docs/requirements.txt."""
-
     name: str = "PrepareDocuments"
     context: Optional[str] = None
     llm: BaseGPTAPI = Field(default_factory=LLM)
diff --git a/metagpt/memory/longterm_memory.py b/metagpt/memory/longterm_memory.py
index 069740054..76a8deabb 100644
--- a/metagpt/memory/longterm_memory.py
+++ b/metagpt/memory/longterm_memory.py
@@ -22,7 +22,6 @@ class LongTermMemory(Memory):
     - recover memory when it staruped
     - update memory when it changed
     """
-
     memory_storage: MemoryStorage = Field(default_factory=MemoryStorage)
     rc: Optional["RoleContext"] = None
     msg_from_recover: bool = False
diff --git a/metagpt/roles/architect.py b/metagpt/roles/architect.py
index 9edfe33d9..a36cd6e93 100644
--- a/metagpt/roles/architect.py
+++ b/metagpt/roles/architect.py
@@ -22,7 +22,6 @@ class Architect(Role):
         goal (str): Primary goal or responsibility of the architect.
         constraints (str): Constraints or guidelines for the architect.
     """
-
     name: str = Field(default="Bob")
     profile: str = Field(default="Architect")
     goal: str = Field(default="design a concise, usable, complete software system")
diff --git a/metagpt/roles/role.py b/metagpt/roles/role.py
index e57f21ec3..0bc129174 100644
--- a/metagpt/roles/role.py
+++ b/metagpt/roles/role.py
@@ -27,7 +27,6 @@ from typing import Iterable, Set, Type, Any
 
 from pydantic import BaseModel, Field
 
-
 from metagpt.actions.action import Action, ActionOutput, action_subclass_registry
 from metagpt.actions.action_node import ActionNode
 from metagpt.actions.add_requirement import UserRequirement
diff --git a/metagpt/startup.py b/metagpt/startup.py
index b66f9e305..5a3e482a4 100644
--- a/metagpt/startup.py
+++ b/metagpt/startup.py
@@ -3,6 +3,7 @@
 import asyncio
 
 import typer
+from pathlib import Path
 
 from metagpt.config import CONFIG
 
@@ -27,7 +28,7 @@ def startup(
         default="", help="Specify the source file name for rewriting the quality assurance code."
     ),
     max_auto_summarize_code: int = typer.Option(
-        default=-1,
+        default=0,
         help="The maximum number of times the 'SummarizeCode' action is automatically invoked, with -1 indicating "
         "unlimited. This parameter is used for debugging the workflow.",
     ),
diff --git a/metagpt/utils/serialize.py b/metagpt/utils/serialize.py
index 8ad46a120..7bfd55008 100644
--- a/metagpt/utils/serialize.py
+++ b/metagpt/utils/serialize.py
@@ -5,7 +5,6 @@
 import copy
 import pickle
 
-
 from metagpt.utils.common import import_class
 from metagpt.actions.action_node import ActionNode
 from metagpt.schema import Message