diff --git a/api/app/celery_app.py b/api/app/celery_app.py
index 002547f6..db78a368 100644
--- a/api/app/celery_app.py
+++ b/api/app/celery_app.py
@@ -76,6 +76,7 @@ celery_app.conf.update(
         # Document tasks → document_tasks queue (prefork worker)
         'app.core.rag.tasks.parse_document': {'queue': 'document_tasks'},
         'app.core.rag.tasks.build_graphrag_for_kb': {'queue': 'document_tasks'},
+        'app.core.rag.tasks.sync_knowledge_for_kb': {'queue': 'document_tasks'},
         
         # Beat/periodic tasks → periodic_tasks queue (dedicated periodic worker)
         'app.tasks.workspace_reflection_task': {'queue': 'periodic_tasks'},
diff --git a/api/app/controllers/knowledge_controller.py b/api/app/controllers/knowledge_controller.py
index 901208ba..01f89a3d 100644
--- a/api/app/controllers/knowledge_controller.py
+++ b/api/app/controllers/knowledge_controller.py
@@ -9,13 +9,16 @@ from sqlalchemy import or_
 from sqlalchemy.orm import Session
 
 from app.celery_app import celery_app
+from app.core.error_codes import BizCode
 from app.core.logging_config import get_api_logger
 from app.core.rag.common import settings
+from app.core.rag.integrations.feishu.client import FeishuAPIClient
+from app.core.rag.integrations.yuque.client import YuqueAPIClient
 from app.core.rag.llm.chat_model import Base
 from app.core.rag.nlp import rag_tokenizer, search
 from app.core.rag.prompts.generator import graph_entity_types
 from app.core.rag.vdb.elasticsearch.elasticsearch_vector import ElasticSearchVectorFactory
-from app.core.response_utils import success
+from app.core.response_utils import success, fail
 from app.db import get_db
 from app.dependencies import get_current_user
 from app.models import knowledge_model
@@ -484,3 +487,99 @@ async def rebuild_knowledge_graph(
     except Exception as e:
         api_logger.error(f"Failed to rebuild knowledge graph: knowledge_id={knowledge_id} - {str(e)}")
         raise
+
+
+@router.get("/check/yuque/auth", response_model=ApiResponse)
+async def check_yuque_auth(
+        yuque_user_id: str,
+        yuque_token: str,
+        db: Session = Depends(get_db),
+        current_user: User = Depends(get_current_user)
+):
+    """
+    check yuque auth info
+    """
+    api_logger.info(f"check yuque auth info, username: {current_user.username}")
+
+    try:
+        api_client = YuqueAPIClient(
+            user_id=yuque_user_id,
+            token=yuque_token
+        )
+        async with api_client as client:
+            repos = await client.get_user_repos()
+            if repos:
+                return success(data=repos, msg="Successfully auth yuque info")
+        return fail(BizCode.UNAUTHORIZED, msg="auth yuque info failed", error="user_id or token is incorrect")
+    except HTTPException:
+        raise
+    except Exception as e:
+        api_logger.error(f"auth yuque info failed: {str(e)}")
+        raise
+
+
+@router.get("/check/feishu/auth", response_model=ApiResponse)
+async def check_yuque_auth(
+        feishu_app_id: str,
+        feishu_app_secret: str,
+        feishu_folder_token: str,
+        db: Session = Depends(get_db),
+        current_user: User = Depends(get_current_user)
+):
+    """
+    check feishu auth info
+    """
+    api_logger.info(f"check feishu auth info, username: {current_user.username}")
+
+    try:
+        api_client = FeishuAPIClient(
+            app_id=feishu_app_id,
+            app_secret=feishu_app_secret
+        )
+        async with api_client as client:
+            files = await client.list_all_folder_files(feishu_folder_token, recursive=True)
+            if files:
+                return success(data=files, msg="Successfully auth feishu info")
+        return fail(BizCode.UNAUTHORIZED, msg="auth feishu info failed", error="app_id or app_secret or feishu_folder_token is incorrect")
+    except HTTPException:
+        raise
+    except Exception as e:
+        api_logger.error(f"auth feishu info failed: {str(e)}")
+        raise
+
+
+@router.post("/{knowledge_id}/sync", response_model=ApiResponse)
+async def sync_knowledge(
+        knowledge_id: uuid.UUID,
+        db: Session = Depends(get_db),
+        current_user: User = Depends(get_current_user)
+):
+    """
+    sync knowledge base information based on knowledge_id
+    """
+    api_logger.info(f"Obtain details of the knowledge base: knowledge_id={knowledge_id}, username: {current_user.username}")
+
+    try:
+        # 1. Query knowledge base information from the database
+        api_logger.debug(f"Query knowledge base: {knowledge_id}")
+        db_knowledge = knowledge_service.get_knowledge_by_id(db, knowledge_id=knowledge_id, current_user=current_user)
+        if not db_knowledge:
+            api_logger.warning(f"The knowledge base does not exist or access is denied: knowledge_id={knowledge_id}")
+            raise HTTPException(
+                status_code=status.HTTP_404_NOT_FOUND,
+                detail="The knowledge base does not exist or access is denied"
+            )
+
+        # 2. sync knowledge
+        # from app.tasks import sync_knowledge_for_kb
+        # sync_knowledge_for_kb(kb_id)
+        task = celery_app.send_task("app.core.rag.tasks.sync_knowledge_for_kb", args=[knowledge_id])
+        result = {
+             "task_id": task.id
+        }
+        return success(data=result, msg="Task accepted. sync knowledge is being processed in the background.")
+    except HTTPException:
+        raise
+    except Exception as e:
+        api_logger.error(f"Failed to sync knowledge: knowledge_id={knowledge_id} - {str(e)}")
+        raise
diff --git a/api/app/controllers/memory_storage_controller.py b/api/app/controllers/memory_storage_controller.py
index e831cc01..7d74b85f 100644
--- a/api/app/controllers/memory_storage_controller.py
+++ b/api/app/controllers/memory_storage_controller.py
@@ -191,6 +191,11 @@ def update_config(
         api_logger.warning(f"用户 {current_user.username} 尝试更新配置但未选择工作空间")
         return fail(BizCode.INVALID_PARAMETER, "请先切换到一个工作空间", "current_workspace_id is None")
     
+    # 校验至少有一个字段需要更新
+    if payload.config_name is None and payload.config_desc is None and payload.scene_id is None:
+        api_logger.warning(f"用户 {current_user.username} 尝试更新配置但未提供任何更新字段")
+        return fail(BizCode.INVALID_PARAMETER, "请至少提供一个需要更新的字段", "config_name, config_desc, scene_id 均为空")
+    
     api_logger.info(f"用户 {current_user.username} 在工作空间 {workspace_id} 请求更新配置: {payload.config_id}")
     try:
         svc = DataConfigService(db)
diff --git a/api/app/controllers/ontology_controller.py b/api/app/controllers/ontology_controller.py
index f36aa6c5..588c913c 100644
--- a/api/app/controllers/ontology_controller.py
+++ b/api/app/controllers/ontology_controller.py
@@ -52,6 +52,7 @@ from app.services.ontology_service import OntologyService
 from app.core.memory.llm_tools.openai_client import OpenAIClient
 from app.core.memory.utils.validation.owl_validator import OWLValidator
 from app.services.model_service import ModelConfigService
+from app.repositories.ontology_scene_repository import OntologySceneRepository
 
 
 api_logger = get_api_logger()
@@ -116,27 +117,35 @@ def _get_ontology_service(
                 detail=f"找不到指定的LLM模型: {llm_id}"
             )
         
-        # 验证模型配置了API密钥
-        if not model_config.api_keys:
-            logger.error(f"Model {llm_id} has no API key configuration")
+        # 通过 Repository 获取可用的 API Key（负载均衡逻辑由 Repository 处理）
+        from app.repositories.model_repository import ModelApiKeyRepository
+        api_keys = ModelApiKeyRepository.get_by_model_config(db, model_config.id)
+        if not api_keys:
+            logger.error(f"Model {llm_id} has no active API key")
             raise HTTPException(
                 status_code=400,
-                detail="指定的LLM模型没有配置API密钥"
+                detail="指定的LLM模型没有可用的API密钥"
             )
+        api_key_config = api_keys[0]
         
-        api_key_config = model_config.api_keys[0]
-        
+        is_composite = getattr(model_config, 'is_composite', False)
         logger.info(
             f"Using specified model - user: {current_user.id}, "
-            f"model_id: {llm_id}, model_name: {api_key_config.model_name}"
+            f"model_id: {llm_id}, model_name: {api_key_config.model_name}, "
+            f"is_composite: {is_composite}, api_key_id: {api_key_config.id}"
         )
         
         # 创建模型配置对象
         from app.core.models.base import RedBearModelConfig
         
+        # 对于组合模型，使用 API Key 的 provider；否则使用 model_config 的 provider
+        actual_provider = api_key_config.provider if is_composite else (
+            getattr(model_config, 'provider', None) or "openai"
+        )
+        
         llm_model_config = RedBearModelConfig(
             model_name=api_key_config.model_name,
-            provider=model_config.provider if hasattr(model_config, 'provider') else "openai",
+            provider=actual_provider,
             api_key=api_key_config.api_key,
             base_url=api_key_config.api_base,
             max_retries=3,
@@ -648,6 +657,46 @@ async def delete_scene(
         return fail(BizCode.INTERNAL_ERROR, "场景删除失败", str(e))
 
 
+@router.get("/scenes/simple", response_model=ApiResponse)
+async def get_scenes_simple(
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user)
+):
+    """获取场景简单列表（轻量级，用于下拉选择）
+    
+    仅返回 scene_id 和 scene_name，不加载关联数据，响应速度快。
+    适用于前端下拉选择场景的场景。
+    
+    Args:
+        db: 数据库会话
+        current_user: 当前用户
+        
+    Returns:
+        ApiResponse: 包含场景简单列表
+        
+    Examples:
+        GET /scenes/simple
+        返回: {"data": [{"scene_id": "xxx", "scene_name": "场景1"}, ...]}
+    """
+    api_logger.info(f"Simple scene list requested by user {current_user.id}")
+    
+    try:
+        workspace_id = current_user.current_workspace_id
+        if not workspace_id:
+            api_logger.warning(f"User {current_user.id} has no current workspace")
+            return fail(BizCode.BAD_REQUEST, "请求参数无效", "当前用户没有工作空间")
+        
+        repo = OntologySceneRepository(db)
+        scenes = repo.get_simple_list(workspace_id)
+        
+        api_logger.info(f"Simple scene list retrieved: {len(scenes)} scenes")
+        return success(data=scenes, msg="查询成功")
+        
+    except Exception as e:
+        api_logger.error(f"Failed to get simple scene list: {str(e)}", exc_info=True)
+        return fail(BizCode.INTERNAL_ERROR, "查询失败", str(e))
+
+
 @router.get("/scenes", response_model=ApiResponse)
 async def get_scenes(
     workspace_id: Optional[str] = None,
diff --git a/api/app/core/agent/langchain_agent.py b/api/app/core/agent/langchain_agent.py
index 40cf068e..fae20ea2 100644
--- a/api/app/core/agent/langchain_agent.py
+++ b/api/app/core/agent/langchain_agent.py
@@ -7,30 +7,21 @@ LangChain Agent 封装
 - 支持流式输出
 - 使用 RedBearLLM 支持多提供商
 """
-import os
+
 import time
 from typing import Any, AsyncGenerator, Dict, List, Optional, Sequence
 
-from app.core.memory.agent.langgraph_graph.tools.write_tool import agent_chat_messages, format_parsing, messages_parse
-from app.core.memory.agent.langgraph_graph.write_graph import long_term_storage
+from app.core.memory.agent.langgraph_graph.write_graph import  write_long_term
 from app.db import get_db
 from app.core.logging_config import get_business_logger
-from app.core.memory.agent.utils.redis_tool import store
 from app.core.models import RedBearLLM, RedBearModelConfig
 from app.models.models_model import ModelType
-from app.repositories.memory_short_repository import LongTermMemoryRepository
 from app.services.memory_agent_service import (
     get_end_user_connected_config,
 )
-from app.services.memory_konwledges_server import write_rag
-from app.services.task_service import get_task_memory_write_result
-from app.tasks import write_message_task
 from langchain.agents import create_agent
 from langchain_core.messages import AIMessage, BaseMessage, HumanMessage, SystemMessage
 from langchain_core.tools import BaseTool
-
-from app.utils.config_utils import resolve_config_id
-
 logger = get_business_logger()
 
 
@@ -289,105 +280,6 @@ class LangChainAgent:
         
         return content_parts
 
-    async def term_memory_save(self,long_term_messages,actual_config_id,end_user_id,type):
-        db = next(get_db())
-        #TODO: 魔法数字
-        scope=6
-
-        try:
-            repo = LongTermMemoryRepository(db)
-            await long_term_storage(long_term_type="chunk", langchain_messages=long_term_messages,
-                                    memory_config=actual_config_id, end_user_id=end_user_id, scope=scope)
-
-            from app.core.memory.agent.utils.redis_tool import write_store
-            result = write_store.get_session_by_userid(end_user_id)
-            
-            # Handle case where no session exists in Redis (returns False)
-            if not result or result is False:
-                logger.debug(f"No existing session in Redis for user {end_user_id}, skipping short-term memory update")
-                return
-                
-            if type=="chunk" or type=="aggregate":
-                data = await format_parsing(result, "dict")
-                chunk_data = data[:scope]
-                if len(chunk_data)==scope:
-                    repo.upsert(end_user_id, chunk_data)
-                    logger.info(f'写入短长期：')
-            else:
-                # TODO: This branch handles type="time" strategy, currently unused.
-                # Will be activated when time-based long-term storage is implemented.
-                # TODO: 魔法数字 - extract 5 to a constant
-                long_time_data = write_store.find_user_recent_sessions(end_user_id, 5)
-                # Handle case where no session exists in Redis (returns False or empty)
-                if not long_time_data or long_time_data is False:
-                    logger.debug(f"No recent sessions in Redis for user {end_user_id}")
-                    return
-                long_messages = await messages_parse(long_time_data)
-                repo.upsert(end_user_id, long_messages)
-                logger.info(f'写入短长期：')
-        finally:
-            db.close()
-
-    async def write(self, storage_type, end_user_id, user_message, ai_message, user_rag_memory_id, actual_end_user_id, actual_config_id):
-        """
-        写入记忆（支持结构化消息）
-
-        Args:
-            storage_type: 存储类型 (neo4j/rag)
-            end_user_id: 终端用户ID
-            user_message: 用户消息内容
-            ai_message: AI 回复内容
-            user_rag_memory_id: RAG 记忆ID
-            actual_end_user_id: 实际用户ID
-            actual_config_id: 配置ID
-
-        逻辑说明：
-        - RAG 模式：组合 user_message 和 ai_message 为字符串格式，保持原有逻辑不变
-        - Neo4j 模式：使用结构化消息列表
-          1. 如果 user_message 和 ai_message 都不为空：创建配对消息 [user, assistant]
-          2. 如果只有 user_message：创建单条用户消息 [user]（用于历史记忆场景）
-          3. 每条消息会被转换为独立的 Chunk，保留 speaker 字段
-        """
-
-        db = next(get_db())
-        try:
-            actual_config_id=resolve_config_id(actual_config_id, db)
-
-            if storage_type == "rag":
-                # RAG 模式：组合消息为字符串格式（保持原有逻辑）
-                combined_message = f"user: {user_message}\nassistant: {ai_message}"
-                await write_rag(end_user_id, combined_message, user_rag_memory_id)
-                logger.info(f'RAG_Agent:{end_user_id};{user_rag_memory_id}')
-            else:
-                # Neo4j 模式：使用结构化消息列表
-                structured_messages = []
-
-                # 始终添加用户消息（如果不为空）
-                if user_message:
-                    structured_messages.append({"role": "user", "content": user_message})
-
-                # 只有当 AI 回复不为空时才添加 assistant 消息
-                if ai_message:
-                    structured_messages.append({"role": "assistant", "content": ai_message})
-
-                # 如果没有消息，直接返回
-                if not structured_messages:
-                    logger.warning(f"No messages to write for user {actual_end_user_id}")
-                    return
-
-                logger.info(f"[WRITE] Submitting Celery task - user={actual_end_user_id}, messages={len(structured_messages)}, config={actual_config_id}")
-                write_id = write_message_task.delay(
-                    actual_end_user_id,  # end_user_id: 用户ID
-                    structured_messages,  # message: 结构化消息列表 [{"role": "user", "content": "..."}, {"role": "assistant", "content": "..."}]
-                    actual_config_id,    # config_id: 配置ID
-                    storage_type,        # storage_type: "neo4j"
-                    user_rag_memory_id   # user_rag_memory_id: RAG记忆ID（Neo4j模式下不使用）
-                )
-                logger.info(f"[WRITE] Celery task submitted - task_id={write_id}")
-                write_status = get_task_memory_write_result(str(write_id))
-                logger.info(f'[WRITE] Task result - user={actual_end_user_id}, status={write_status}')
-        finally:
-            db.close()
     async def chat(
             self,
             message: str,
@@ -520,14 +412,7 @@ class LangChainAgent:
 
             elapsed_time = time.time() - start_time
             if memory_flag:
-                long_term_messages=await agent_chat_messages(message_chat,content)
-                # TODO: DUPLICATE WRITE - Remove this immediate write once batched write (term_memory_save) is verified stable.
-                # This writes to Neo4j immediately via Celery task, but term_memory_save also writes to Neo4j
-                # when the window buffer reaches scope (6 messages). This causes duplicate entities in the graph.
-                # Recommended: Keep only term_memory_save for batched efficiency, or only self.write for real-time.
-                await self.write(storage_type, actual_end_user_id, message_chat, content, user_rag_memory_id, actual_end_user_id, actual_config_id)
-                # Batched long-term memory storage (Redis buffer + Neo4j when window full)
-                await self.term_memory_save(long_term_messages,actual_config_id,end_user_id,"chunk")
+                await write_long_term(storage_type, end_user_id, message_chat, content, user_rag_memory_id, actual_config_id)
             response = {
                 "content": content,
                 "model": self.model_name,
@@ -710,15 +595,7 @@ class LangChainAgent:
                         yield total_tokens
                         break
                 if memory_flag:
-                    # TODO: DUPLICATE WRITE - Remove this immediate write once batched write (term_memory_save) is verified stable.
-                    # This writes to Neo4j immediately via Celery task, but term_memory_save also writes to Neo4j
-                    # when the window buffer reaches scope (6 messages). This causes duplicate entities in the graph.
-                    # Recommended: Keep only term_memory_save for batched efficiency, or only self.write for real-time.
-                    long_term_messages = await agent_chat_messages(message_chat, full_content)
-                    await self.write(storage_type, end_user_id, message_chat, full_content, user_rag_memory_id, end_user_id, actual_config_id)
-                    # Batched long-term memory storage (Redis buffer + Neo4j when window full)
-                    await self.term_memory_save(long_term_messages, actual_config_id, end_user_id, "chunk")
-                
+                    await write_long_term(storage_type, end_user_id, message_chat, full_content, user_rag_memory_id, actual_config_id)
             except Exception as e:
                 logger.error(f"Agent astream_events 失败: {str(e)}", exc_info=True)
                 raise
diff --git a/api/app/core/memory/agent/langgraph_graph/routing/write_router.py b/api/app/core/memory/agent/langgraph_graph/routing/write_router.py
index e9de02b6..895f61ac 100644
--- a/api/app/core/memory/agent/langgraph_graph/routing/write_router.py
+++ b/api/app/core/memory/agent/langgraph_graph/routing/write_router.py
@@ -1,8 +1,9 @@
+import json
 import os
 
 from app.core.logging_config import get_agent_logger
-from app.core.memory.agent.langgraph_graph.tools.write_tool import chat_data_format, format_parsing
-from app.core.memory.agent.langgraph_graph.write_graph import make_write_graph
+from app.core.memory.agent.langgraph_graph.tools.write_tool import  format_parsing,  messages_parse
+from app.core.memory.agent.langgraph_graph.write_graph import make_write_graph, long_term_storage
 
 from app.core.memory.agent.models.write_aggregate_model import WriteAggregateModel
 from app.core.memory.agent.utils.llm_tools import PROJECT_ROOT_
@@ -10,46 +11,108 @@ from app.core.memory.agent.utils.redis_tool import write_store
 from app.core.memory.agent.utils.redis_tool import count_store
 from app.core.memory.agent.utils.template_tools import TemplateService
 from app.core.memory.utils.llm.llm_utils import MemoryClientFactory
-from app.db import get_db_context
+from app.db import get_db_context, get_db
+from app.repositories.memory_short_repository import LongTermMemoryRepository
+from app.schemas.memory_agent_schema import AgentMemory_Long_Term
+from app.services.memory_konwledges_server import write_rag
+from app.services.task_service import get_task_memory_write_result
+from app.tasks import write_message_task
+from app.utils.config_utils import resolve_config_id
 logger = get_agent_logger(__name__)
 template_root = os.path.join(PROJECT_ROOT_, 'memory', 'agent', 'utils', 'prompt')
 
+async def write_rag_agent(end_user_id, user_message, ai_message, user_rag_memory_id):
+    # RAG 模式：组合消息为字符串格式（保持原有逻辑）
+    combined_message = f"user: {user_message}\nassistant: {ai_message}"
+    await write_rag(end_user_id, combined_message, user_rag_memory_id)
+    logger.info(f'RAG_Agent:{end_user_id};{user_rag_memory_id}')
+async def write(storage_type, end_user_id, user_message, ai_message, user_rag_memory_id, actual_end_user_id,
+                actual_config_id, long_term_messages=[]):
+    """
+    写入记忆（支持结构化消息）
 
-async def write_messages(end_user_id,langchain_messages,memory_config):
-    '''
-    写入数据到neo4j：
-     Args:
+    Args:
+        storage_type: 存储类型 (neo4j/rag)
         end_user_id: 终端用户ID
-        memory_config: 内存配置对象
-        langchain_messages：原始数据LIST
-    '''
+        user_message: 用户消息内容
+        ai_message: AI 回复内容
+        user_rag_memory_id: RAG 记忆ID
+        actual_end_user_id: 实际用户ID
+        actual_config_id: 配置ID
+
+    逻辑说明：
+    - RAG 模式：组合 user_message 和 ai_message 为字符串格式，保持原有逻辑不变
+    - Neo4j 模式：使用结构化消息列表
+      1. 如果 user_message 和 ai_message 都不为空：创建配对消息 [user, assistant]
+      2. 如果只有 user_message：创建单条用户消息 [user]（用于历史记忆场景）
+      3. 每条消息会被转换为独立的 Chunk，保留 speaker 字段
+    """
+
+    db = next(get_db())
     try:
+        actual_config_id = resolve_config_id(actual_config_id, db)
+        # Neo4j 模式：使用结构化消息列表
+        structured_messages = []
+
+        # 始终添加用户消息（如果不为空）
+        if isinstance(user_message, str) and user_message.strip() != "":
+            structured_messages.append({"role": "user", "content": user_message})
+
+        # 只有当 AI 回复不为空时才添加 assistant 消息
+        if isinstance(ai_message, str) and ai_message.strip() != "":
+            structured_messages.append({"role": "assistant", "content": ai_message})
+
+        # 如果提供了 long_term_messages，使用它替代 structured_messages
+        if long_term_messages and isinstance(long_term_messages, list):
+            structured_messages = long_term_messages
+        elif long_term_messages and isinstance(long_term_messages, str):
+            # 如果是 JSON 字符串，先解析
+            try:
+                structured_messages = json.loads(long_term_messages)
+            except json.JSONDecodeError:
+                logger.error(f"Failed to parse long_term_messages as JSON: {long_term_messages}")
+
+        # 如果没有消息，直接返回
+        if not structured_messages:
+            logger.warning(f"No messages to write for user {actual_end_user_id}")
+            return
+
+        logger.info(
+            f"[WRITE] Submitting Celery task - user={actual_end_user_id}, messages={len(structured_messages)}, config={actual_config_id}")
+        write_id = write_message_task.delay(
+            actual_end_user_id,  # end_user_id: 用户ID
+            structured_messages,  # message: JSON 字符串格式的消息列表
+            str(actual_config_id),  # config_id: 配置ID字符串
+            storage_type,  # storage_type: "neo4j"
+            user_rag_memory_id or ""  # user_rag_memory_id: RAG记忆ID（Neo4j模式下不使用）
+        )
+        logger.info(f"[WRITE] Celery task submitted - task_id={write_id}")
+        write_status = get_task_memory_write_result(str(write_id))
+        logger.info(f'[WRITE] Task result - user={actual_end_user_id}, status={write_status}')
+    finally:
+        db.close()
+
+async def term_memory_save(long_term_messages,actual_config_id,end_user_id,type,scope):
+    with get_db_context() as db_session:
+        repo = LongTermMemoryRepository(db_session)
+
+
+        from app.core.memory.agent.utils.redis_tool import write_store
+        result = write_store.get_session_by_userid(end_user_id)
+        if type==AgentMemory_Long_Term.STRATEGY_CHUNK or AgentMemory_Long_Term.STRATEGY_AGGREGATE:
+            data = await format_parsing(result, "dict")
+            chunk_data = data[:scope]
+            if len(chunk_data)==scope:
+                repo.upsert(end_user_id, chunk_data)
+                logger.info(f'---------写入短长期-----------')
+        else:
+            long_time_data = write_store.find_user_recent_sessions(end_user_id, 5)
+            long_messages = await messages_parse(long_time_data)
+            repo.upsert(end_user_id, long_messages)
+            logger.info(f'写入短长期：')
+
 
-        async with make_write_graph() as graph:
-            config = {"configurable": {"thread_id": end_user_id}}
-            # 初始状态 - 包含所有必要字段
-            initial_state = {
-                "messages": langchain_messages,
-                "end_user_id": end_user_id,
-                "memory_config": memory_config
-            }
 
-            # 获取节点更新信息
-            async for update_event in graph.astream(
-                    initial_state,
-                    stream_mode="updates",
-                    config=config
-            ):
-                for node_name, node_data in update_event.items():
-                    if 'save_neo4j' == node_name:
-                        massages = node_data
-            # TODO：删除
-            massagesstatus = massages.get('write_result')['status']
-            contents = massages.get('write_result')
-            print(contents)
-    except Exception as e:
-        import traceback
-        traceback.print_exc()
 '''根据窗口'''
 async def window_dialogue(end_user_id,langchain_messages,memory_config,scope):
     '''
@@ -61,25 +124,26 @@ async def window_dialogue(end_user_id,langchain_messages,memory_config,scope):
         scope：窗口大小
     '''
     scope=scope
-    redis_messages = []
     is_end_user_id = count_store.get_sessions_count(end_user_id)
     if is_end_user_id is not False:
         is_end_user_id = count_store.get_sessions_count(end_user_id)[0]
         redis_messages = count_store.get_sessions_count(end_user_id)[1]
     if is_end_user_id and int(is_end_user_id) != int(scope):
-        print(is_end_user_id)
         is_end_user_id += 1
         langchain_messages += redis_messages
         count_store.update_sessions_count(end_user_id, is_end_user_id, langchain_messages)
     elif int(is_end_user_id) == int(scope):
-        print('写入长期记忆，并且设置为0')
-        print(is_end_user_id)
-        formatted_messages = await chat_data_format(redis_messages)
-        print(100*'-')
-        print(formatted_messages)
-        print(100*'-')
-        await write_messages(end_user_id, formatted_messages, memory_config)
-        count_store.update_sessions_count(end_user_id, 0, '')
+        logger.info('写入长期记忆NEO4J')
+        formatted_messages = (redis_messages)
+        # 获取 config_id（如果 memory_config 是对象，提取 config_id；否则直接使用）
+        if hasattr(memory_config, 'config_id'):
+            config_id = memory_config.config_id
+        else:
+            config_id = memory_config
+        
+        await write(AgentMemory_Long_Term.STORAGE_NEO4J, end_user_id, "", "", None, end_user_id,
+                config_id, formatted_messages)
+        count_store.update_sessions_count(end_user_id, 1, langchain_messages)
     else:
         count_store.save_sessions_count(end_user_id, 1, langchain_messages)
 
@@ -93,12 +157,15 @@ async def memory_long_term_storage(end_user_id,memory_config,time):
         memory_config: 内存配置对象
     '''
     long_time_data = write_store.find_user_recent_sessions(end_user_id, time)
-    # Handle case where no session exists in Redis (returns False or empty)
-    if not long_time_data or long_time_data is False:
-        return
-    format_messages = await chat_data_format(long_time_data)
+    format_messages = (long_time_data)
+    messages=[]
+    memory_config=memory_config.config_id
+    for i in format_messages:
+        message=json.loads(i['Query'])
+        messages+= message
     if format_messages!=[]:
-        await write_messages(end_user_id, format_messages, memory_config)
+        await write(AgentMemory_Long_Term.STORAGE_NEO4J, end_user_id, "", "", None, end_user_id,
+                    memory_config, messages)
 '''聚合判断'''
 async def aggregate_judgment(end_user_id: str, ori_messages: list, memory_config) -> dict:
     """
@@ -109,13 +176,12 @@ async def aggregate_judgment(end_user_id: str, ori_messages: list, memory_config
         ori_messages: 原始消息列表，格式如 [{"role": "user", "content": "..."}, {"role": "assistant", "content": "..."}]
         memory_config: 内存配置对象
     """
-    
+
     try:
         # 1. 获取历史会话数据（使用新方法）
         result = write_store.get_all_sessions_by_end_user_id(end_user_id)
-        
-        # Handle case where no session exists in Redis (returns False or empty)
-        if not result or result is False:
+        history = await format_parsing(result)
+        if not result:
             history = []
         else:
             history = await format_parsing(result)
@@ -154,7 +220,8 @@ async def aggregate_judgment(end_user_id: str, ori_messages: list, memory_config
         }
         if not structured.is_same_event:
             logger.info(result_dict)
-            await write_messages(end_user_id, output_value, memory_config)
+            await write("neo4j", end_user_id, "", "", None, end_user_id,
+                        memory_config.config_id, output_value)
         return result_dict
         
     except Exception as e:
diff --git a/api/app/core/memory/agent/langgraph_graph/tools/tool.py b/api/app/core/memory/agent/langgraph_graph/tools/tool.py
index c4814de1..fcbb18e3 100644
--- a/api/app/core/memory/agent/langgraph_graph/tools/tool.py
+++ b/api/app/core/memory/agent/langgraph_graph/tools/tool.py
@@ -186,10 +186,11 @@ def create_hybrid_retrieval_tool_async(memory_config, **search_params):
             清理后的数据
         """
         # 需要过滤的字段列表
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
         fields_to_remove = {
             'invalid_at', 'valid_at', 'chunk_id_from_rel', 'entity_ids', 
             'expired_at', 'created_at', 'chunk_id', 'id', 'apply_id', 
-            'user_id', 'statement_ids', 'updated_at',"chunk_ids","fact_summary"
+            'user_id', 'statement_ids', 'updated_at',"chunk_ids"  ,"fact_summary"
         }
         
         if isinstance(data, dict):
diff --git a/api/app/core/memory/agent/langgraph_graph/tools/write_tool.py b/api/app/core/memory/agent/langgraph_graph/tools/write_tool.py
index a1fb8226..9ce581ee 100644
--- a/api/app/core/memory/agent/langgraph_graph/tools/write_tool.py
+++ b/api/app/core/memory/agent/langgraph_graph/tools/write_tool.py
@@ -1,8 +1,6 @@
 import json
 
 from langchain_core.messages import HumanMessage, AIMessage
-
-
 async def format_parsing(messages: list,type:str='string'):
     """
     格式化解析消息列表
@@ -26,13 +24,13 @@ async def format_parsing(messages: list,type:str='string'):
                 role = content['role']
                 content = content['content']
                 if type == "string":
-                    if role == 'human':
+                    if role == 'human' or role=="user":
                         content = '用户:' + content
                     else:
                         content = 'AI:' + content
                     result.append(content)
-                if type == "dict":
-                    if role == 'human':
+                if type == "dict" :
+                    if role == 'human'  or role=="user":
                         user.append( content)
                     else:
                         ai.append(content)
@@ -57,33 +55,7 @@ async def messages_parse(messages: list | dict):
     for key, values in zip(user, ai):
         database.append({key, values})
     return  database
-async def chat_data_format(messages: list | dict):
-    """
-    将消息格式化为 LangChain 消息格式
-    
-    Args:
-        messages: 消息列表或字典
-        
-    Returns:
-        LangChain 消息列表
-    """
-    langchain_messages = []
-    if isinstance(messages, list):
-        for msg in messages:
-            if 'role' in msg.keys():
-                if msg['role'] == 'user':
-                    langchain_messages.append(HumanMessage(content=msg['content']))
-                elif msg['role'] == 'assistant':
-                    langchain_messages.append(AIMessage(content=msg['content']))
-            if "Query" in msg.keys():
-                langchain_messages.append(HumanMessage(content=msg['Query']))
-                langchain_messages.append(AIMessage(content=msg['Answer']))
-    if isinstance(messages, dict):
-        if messages['type'] == 'human':
-            langchain_messages.append(HumanMessage(content=messages['content']))
-        elif messages['type'] == 'ai':
-            langchain_messages.append(AIMessage(content=messages['content']))
-    return langchain_messages
+
 
 async def agent_chat_messages(user_content,ai_content):
     messages = [
diff --git a/api/app/core/memory/agent/langgraph_graph/write_graph.py b/api/app/core/memory/agent/langgraph_graph/write_graph.py
index 9b858f47..1134acc7 100644
--- a/api/app/core/memory/agent/langgraph_graph/write_graph.py
+++ b/api/app/core/memory/agent/langgraph_graph/write_graph.py
@@ -1,13 +1,18 @@
 import asyncio
+import json
 import sys
 import warnings
 from contextlib import asynccontextmanager
 from langgraph.constants import END, START
 from langgraph.graph import StateGraph
 
+from app.db import get_db, get_db_context
 from app.core.logging_config import get_agent_logger
 from app.core.memory.agent.utils.llm_tools import WriteState
 from app.core.memory.agent.langgraph_graph.nodes.write_nodes import write_node
+from app.schemas.memory_agent_schema import AgentMemory_Long_Term
+from app.services.memory_config_service import MemoryConfigService
+
 
 warnings.filterwarnings("ignore", category=RuntimeWarning)
 logger = get_agent_logger(__name__)
@@ -37,76 +42,61 @@ async def make_write_graph():
 
     yield graph
 
-
-async def long_term_storage(long_term_type: str = "chunk", langchain_messages: list = [], memory_config: str = '',
-                            end_user_id: str = '', scope: int = 6):
-    """Dispatch long-term memory storage to Celery background tasks.
-
-    Args:
-        long_term_type: Storage strategy - 'chunk' (window), 'time', or 'aggregate'
-        langchain_messages: List of messages to store
-        memory_config: Memory configuration ID (string)
-        end_user_id: End user identifier
-        scope: Window size for 'chunk' strategy (default: 6)
-    """
-    from app.tasks import (
-        long_term_storage_window_task,
-        # TODO: Uncomment when implemented
-        # long_term_storage_time_task,
-        # long_term_storage_aggregate_task,
-    )
-    from app.core.logging_config import get_logger
-
-    logger = get_logger(__name__)
-
-    # Convert config to string if needed
-    config_id = str(memory_config) if memory_config else ''
-
-    if long_term_type == 'chunk':
-        # Strategy 1: Window-based batching (6 rounds of dialogue)
-        logger.info(f"[LONG_TERM] Dispatching window task - end_user_id={end_user_id}, scope={scope}")
-        long_term_storage_window_task.delay(
-            end_user_id=end_user_id,
-            langchain_messages=langchain_messages,
-            config_id=config_id,
-            scope=scope
+async def long_term_storage(long_term_type:str="chunk",langchain_messages:list=[],memory_config:str='',end_user_id:str='',scope:int=6):
+    from app.core.memory.agent.langgraph_graph.routing.write_router import memory_long_term_storage, window_dialogue,aggregate_judgment
+    from app.core.memory.agent.utils.redis_tool import write_store
+    write_store.save_session_write(end_user_id,  (langchain_messages))
+    # 获取数据库会话
+    with get_db_context() as db_session:
+        config_service = MemoryConfigService(db_session)
+        memory_config = config_service.load_memory_config(
+            config_id=memory_config,  # 改为整数
+            service_name="MemoryAgentService"
         )
-    # TODO: Uncomment when time-based strategy is fully implemented
-    # elif long_term_type == 'time':
-    #     # Strategy 2: Time-based retrieval
-    #     logger.info(f"[LONG_TERM] Dispatching time task - end_user_id={end_user_id}")
-    #     long_term_storage_time_task.delay(
-    #         end_user_id=end_user_id,
-    #         config_id=config_id,
-    #         time_window=5
-    #     )
-    # TODO: Uncomment when aggregate strategy is fully implemented
-    # elif long_term_type == 'aggregate':
-    #     # Strategy 3: Aggregate judgment (deduplication)
-    #     logger.info(f"[LONG_TERM] Dispatching aggregate task - end_user_id={end_user_id}")
-    #     long_term_storage_aggregate_task.delay(
-    #         end_user_id=end_user_id,
-    #         langchain_messages=langchain_messages,
-    #         config_id=config_id
-    #     )
+        if long_term_type=='chunk':
+            '''方案一:对话窗口6轮对话'''
+            await window_dialogue(end_user_id,langchain_messages,memory_config,scope)
+        if long_term_type=='time':
+            """时间"""
+            await memory_long_term_storage(end_user_id, memory_config,5)
+        if  long_term_type=='aggregate':
+            """方案三：聚合判断"""
+            await aggregate_judgment(end_user_id, langchain_messages, memory_config)
+
+
+
+async def write_long_term(storage_type,end_user_id,message_chat,aimessages,user_rag_memory_id,actual_config_id):
+    from app.core.memory.agent.langgraph_graph.routing.write_router import write_rag_agent
+    from app.core.memory.agent.langgraph_graph.routing.write_router import term_memory_save
+    from app.core.memory.agent.langgraph_graph.tools.write_tool import  agent_chat_messages
+    if storage_type == AgentMemory_Long_Term.STORAGE_RAG:
+        await write_rag_agent(end_user_id, message_chat, aimessages, user_rag_memory_id)
+    else:
+        # AI 回复写入（用户消息和 AI 回复配对，一次性写入完整对话）
+        CHUNK = AgentMemory_Long_Term.STRATEGY_CHUNK
+        SCOPE = AgentMemory_Long_Term.DEFAULT_SCOPE
+        long_term_messages = await agent_chat_messages(message_chat, aimessages)
+        await long_term_storage(long_term_type=CHUNK, langchain_messages=long_term_messages,
+                                memory_config=actual_config_id, end_user_id=end_user_id, scope=SCOPE)
+        await term_memory_save(long_term_messages, actual_config_id, end_user_id, CHUNK, scope=SCOPE)
 
 # async def main():
 #     """主函数 - 运行工作流"""
 #     langchain_messages = [
 #     {
 #       "role": "user",
-#       "content": "今天周五好开心啊"
+#       "content": "今天周五去爬山"
 #     },
 #     {
 #       "role": "assistant",
-#       "content": "你也这么觉得，我也是耶"
+#       "content": "好耶"
 #     }
 #
 #   ]
 #     end_user_id = '837fee1b-04a2-48ee-94d7-211488908940'  # 组ID
 #     memory_config="08ed205c-0f05-49c3-8e0c-a580d28f5fd4"
-#     # await long_term_storage(long_term_type="chunk",langchain_messages=langchain_messages,memory_config=memory_config,end_user_id=end_user_id,scope=2)
-#     result=await long_term_storage(long_term_type="chunk",langchain_messages=langchain_messages,memory_config=memory_config,end_user_id=end_user_id,scope=2)
+#     await long_term_storage(long_term_type="chunk",langchain_messages=langchain_messages,memory_config=memory_config,end_user_id=end_user_id,scope=2)
+#
 #
 #
 # if __name__ == "__main__":
diff --git a/api/app/core/memory/agent/utils/redis_tool.py b/api/app/core/memory/agent/utils/redis_tool.py
index b61319e5..c5729628 100644
--- a/api/app/core/memory/agent/utils/redis_tool.py
+++ b/api/app/core/memory/agent/utils/redis_tool.py
@@ -294,6 +294,7 @@ class RedisCountStore:
         """
         session_id = str(uuid.uuid4())
         key = generate_session_key(session_id, key_type="count")
+        index_key = f'session:count:index:{end_user_id}'  # 索引键
         
         pipe = self.r.pipeline()
         pipe.hset(key, mapping={
@@ -304,6 +305,10 @@ class RedisCountStore:
             "starttime": get_current_timestamp()
         })
         pipe.expire(key, 30 * 24 * 60 * 60)  # 30天过期
+        
+        # 创建索引：end_user_id -> session_id 映射
+        pipe.set(index_key, session_id, ex=30 * 24 * 60 * 60)
+        
         result = pipe.execute()
         
         print(f"[save_sessions_count] 保存结果: {result}, session_id: {session_id}")
@@ -320,31 +325,47 @@ class RedisCountStore:
             list 或 False: 如果找到返回 [count, messages]，否则返回 False
         """
         try:
-            search_pattern = 'session:count:*'
+            # 使用索引键快速查找
+            index_key = f'session:count:index:{end_user_id}'
             
-            for key in self.r.keys(search_pattern):
-                data = self.r.hgetall(key)
-                
-                if not data:
-                    continue
-                
-                if data.get('end_user_id') == end_user_id:
-                    count = data.get('count')
-                    messages_str = data.get('messages')
-                    
-                    if count is not None:
-                        messages = deserialize_messages(messages_str)
-                        return [int(count), messages]
+            # 检查索引键类型，避免 WRONGTYPE 错误
+            try:
+                key_type = self.r.type(index_key)
+                if key_type != 'string' and key_type != 'none':
+                    self.r.delete(index_key)
+                    return False
+            except Exception as type_error:
+                print(f"[get_sessions_count] 检查键类型失败: {type_error}")
+            
+            session_id = self.r.get(index_key)
+            
+            if not session_id:
+                return False
+            
+            # 直接获取数据
+            key = generate_session_key(session_id, key_type="count")
+            data = self.r.hgetall(key)
+            
+            if not data:
+                # 索引存在但数据不存在，清理索引
+                self.r.delete(index_key)
+                return False
+            
+            count = data.get('count')
+            messages_str = data.get('messages')
+            
+            if count is not None:
+                messages = deserialize_messages(messages_str)
+                return [int(count), messages]
             
             return False
         except Exception as e:
             print(f"[get_sessions_count] 查询失败: {e}")
             return False
-
     def update_sessions_count(self, end_user_id: str, new_count: int, 
                              messages: Any) -> bool:
         """
-        通过 end_user_id 修改访问次数统计
+        通过 end_user_id 修改访问次数统计（优化版：使用索引）
         
         Args:
             end_user_id: 终端用户ID
@@ -355,23 +376,39 @@ class RedisCountStore:
             bool: 更新成功返回 True，未找到记录返回 False
         """
         try:
+            # 使用索引键快速查找
+            index_key = f'session:count:index:{end_user_id}'
+            
+            # 检查索引键类型，避免 WRONGTYPE 错误
+            try:
+                key_type = self.r.type(index_key)
+                if key_type != 'string' and key_type != 'none':
+                    # 索引键类型错误，删除并返回 False
+                    print(f"[update_sessions_count] 索引键类型错误: {key_type}，删除索引")
+                    self.r.delete(index_key)
+                    print(f"[update_sessions_count] 未找到记录: end_user_id={end_user_id}")
+                    return False
+            except Exception as type_error:
+                print(f"[update_sessions_count] 检查键类型失败: {type_error}")
+            
+            session_id = self.r.get(index_key)
+            
+            if not session_id:
+                print(f"[update_sessions_count] 未找到记录: end_user_id={end_user_id}")
+                return False
+            
+            # 直接更新数据
+            key = generate_session_key(session_id, key_type="count")
             messages_str = serialize_messages(messages)
-            search_pattern = 'session:count:*'
             
-            for key in self.r.keys(search_pattern):
-                data = self.r.hgetall(key)
-                
-                if not data:
-                    continue
-                
-                if data.get('end_user_id') == end_user_id:
-                    self.r.hset(key, 'count', int(new_count))
-                    self.r.hset(key, 'messages', messages_str)
-                    print(f"[update_sessions_count] 更新成功: end_user_id={end_user_id}, new_count={new_count}, key={key}")
-                    return True
+            pipe = self.r.pipeline()
+            pipe.hset(key, 'count', int(new_count))
+            pipe.hset(key, 'messages', messages_str)
+            result = pipe.execute()
+            
+            print(f"[update_sessions_count] 更新成功: end_user_id={end_user_id}, new_count={new_count}, key={key}")
+            return True
             
-            print(f"[update_sessions_count] 未找到记录: end_user_id={end_user_id}")
-            return False
         except Exception as e:
             print(f"[update_sessions_count] 更新失败: {e}")
             return False
diff --git a/api/app/core/memory/agent/utils/write_tools.py b/api/app/core/memory/agent/utils/write_tools.py
index 76a28156..fadc7669 100644
--- a/api/app/core/memory/agent/utils/write_tools.py
+++ b/api/app/core/memory/agent/utils/write_tools.py
@@ -4,6 +4,7 @@ Write Tools for Memory Knowledge Extraction Pipeline
 This module provides the main write function for executing the knowledge extraction
 pipeline. Only MemoryConfig is needed - clients are constructed internally.
 """
+import asyncio
 import time
 from datetime import datetime
 
@@ -124,23 +125,48 @@ async def write(
     except Exception as e:
         logger.error(f"Error creating indexes: {e}", exc_info=True)
 
+    # 添加死锁重试机制
+    max_retries = 3
+    retry_delay = 1  # 秒
+
+    for attempt in range(max_retries):
+        try:
+            success = await save_dialog_and_statements_to_neo4j(
+                dialogue_nodes=all_dialogue_nodes,
+                chunk_nodes=all_chunk_nodes,
+                statement_nodes=all_statement_nodes,
+                entity_nodes=all_entity_nodes,
+                statement_chunk_edges=all_statement_chunk_edges,
+                statement_entity_edges=all_statement_entity_edges,
+                entity_edges=all_entity_entity_edges,
+                connector=neo4j_connector
+            )
+            if success:
+                logger.info("Successfully saved all data to Neo4j")
+                break
+            else:
+                logger.warning("Failed to save some data to Neo4j")
+                if attempt < max_retries - 1:
+                    logger.info(f"Retrying... (attempt {attempt + 2}/{max_retries})")
+                    await asyncio.sleep(retry_delay * (attempt + 1))  # 指数退避
+        except Exception as e:
+            error_msg = str(e)
+            # 检查是否是死锁错误
+            if "DeadlockDetected" in error_msg or "deadlock" in error_msg.lower():
+                if attempt < max_retries - 1:
+                    logger.warning(f"Deadlock detected, retrying... (attempt {attempt + 2}/{max_retries})")
+                    await asyncio.sleep(retry_delay * (attempt + 1))  # 指数退避
+                else:
+                    logger.error(f"Failed after {max_retries} attempts due to deadlock: {e}")
+                    raise
+            else:
+                # 非死锁错误，直接抛出
+                raise
+
     try:
-        success = await save_dialog_and_statements_to_neo4j(
-            dialogue_nodes=all_dialogue_nodes,
-            chunk_nodes=all_chunk_nodes,
-            statement_nodes=all_statement_nodes,
-            entity_nodes=all_entity_nodes,
-            statement_chunk_edges=all_statement_chunk_edges,
-            statement_entity_edges=all_statement_entity_edges,
-            entity_edges=all_entity_entity_edges,
-            connector=neo4j_connector
-        )
-        if success:
-            logger.info("Successfully saved all data to Neo4j")
-        else:
-            logger.warning("Failed to save some data to Neo4j")
-    finally:
         await neo4j_connector.close()
+    except Exception as e:
+        logger.error(f"Error closing Neo4j connector: {e}")
 
     log_time("Neo4j Database Save", time.time() - step_start, log_file)
 
diff --git a/api/app/core/memory/models/graph_models.py b/api/app/core/memory/models/graph_models.py
index 79b88fdc..1880b9ab 100644
--- a/api/app/core/memory/models/graph_models.py
+++ b/api/app/core/memory/models/graph_models.py
@@ -413,7 +413,8 @@ class ExtractedEntityNode(Node):
         description="Entity aliases - alternative names for this entity"
     )
     name_embedding: Optional[List[float]] = Field(default_factory=list, description="Name embedding vector")
-    fact_summary: str = Field(default="", description="Summary of the fact about this entity")
+    # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+    # fact_summary: str = Field(default="", description="Summary of the fact about this entity")
     connect_strength: str = Field(..., description="Strong VS Weak about this entity")
     config_id: Optional[int | str] = Field(None, description="Configuration ID used to process this entity (integer or string)")
     
diff --git a/api/app/core/memory/storage_services/extraction_engine/deduplication/deduped_and_disamb.py b/api/app/core/memory/storage_services/extraction_engine/deduplication/deduped_and_disamb.py
index a425e0ed..f2f14d9e 100644
--- a/api/app/core/memory/storage_services/extraction_engine/deduplication/deduped_and_disamb.py
+++ b/api/app/core/memory/storage_services/extraction_engine/deduplication/deduped_and_disamb.py
@@ -134,42 +134,45 @@ def _merge_attribute(canonical: ExtractedEntityNode, ent: ExtractedEntityNode):
         if len(desc_b) > len(desc_a):
             canonical.description = desc_b
         # 合并事实摘要：统一保留一个“实体: name”行，来源行去重保序
-        fact_a = getattr(canonical, "fact_summary", "") or ""
-        fact_b = getattr(ent, "fact_summary", "") or ""
-        def _extract_sources(txt: str) -> List[str]:
-            sources: List[str] = []
-            if not txt:
-                return sources
-            for line in str(txt).splitlines():
-                ln = line.strip()
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # fact_a = getattr(canonical, "fact_summary", "") or ""
+        # fact_b = getattr(ent, "fact_summary", "") or ""
+        # def _extract_sources(txt: str) -> List[str]:
+            # sources: List[str] = []
+            # if not txt:
+                # return sources
+            # for line in str(txt).splitlines():
+                # ln = line.strip()
                 # 支持“来源:”或“来源：”前缀
-                m = re.match(r"^来源[:：]\s*(.+)$", ln)
-                if m:
-                    content = m.group(1).strip()
-                    if content:
-                        sources.append(content)
+                # m = re.match(r"^来源[:：]\s*(.+)$", ln)
+                # if m:
+                    # content = m.group(1).strip()
+                    # if content:
+                        # sources.append(content)
             # 如果不存在“来源”前缀，则将整体文本视为一个来源片段，避免信息丢失
-            if not sources and txt.strip():
-                sources.append(txt.strip())
-            return sources
+            # if not sources and txt.strip():
+                # sources.append(txt.strip())
+            # return sources
         try:
-            src_a = _extract_sources(fact_a)
-            src_b = _extract_sources(fact_b)
-            seen = set()
-            merged_sources: List[str] = []
-            for s in src_a + src_b:
-                if s and s not in seen:
-                    seen.add(s)
-                    merged_sources.append(s)
-            if merged_sources:
-                name_line = f"实体: {getattr(canonical, 'name', '')}".strip()
-                canonical.fact_summary = "\n".join([name_line] + [f"来源: {s}" for s in merged_sources])
-            elif fact_b and not fact_a:
-                canonical.fact_summary = fact_b
+            #     src_a = _extract_sources(fact_a)
+            #     src_b = _extract_sources(fact_b)
+            #     seen = set()
+            #     merged_sources: List[str] = []
+            #     for s in src_a + src_b:
+            #         if s and s not in seen:
+            #             seen.add(s)
+            #             merged_sources.append(s)
+            #     if merged_sources:
+            #         name_line = f"实体: {getattr(canonical, 'name', '')}".strip()
+            #         canonical.fact_summary = "\n".join([name_line] + [f"来源: {s}" for s in merged_sources])
+            #     elif fact_b and not fact_a:
+            #         canonical.fact_summary = fact_b
+            pass
         except Exception:
             # 兜底：若解析失败，保留较长文本
-            if len(fact_b) > len(fact_a):
-                canonical.fact_summary = fact_b
+            # if len(fact_b) > len(fact_a):
+            #     canonical.fact_summary = fact_b
+            pass
     except Exception:
         pass
 
diff --git a/api/app/core/memory/storage_services/extraction_engine/deduplication/entity_dedup_llm.py b/api/app/core/memory/storage_services/extraction_engine/deduplication/entity_dedup_llm.py
index 0249ac1f..a028e916 100644
--- a/api/app/core/memory/storage_services/extraction_engine/deduplication/entity_dedup_llm.py
+++ b/api/app/core/memory/storage_services/extraction_engine/deduplication/entity_dedup_llm.py
@@ -145,10 +145,13 @@ def _choose_canonical(a: ExtractedEntityNode, b: ExtractedEntityNode) -> int: #
      # 2. 第二优先级：按“描述+事实摘要”的总长度排序（内容越长，信息越完整）
     desc_a = (getattr(a, "description", "") or "")
     desc_b = (getattr(b, "description", "") or "")
-    fact_a = (getattr(a, "fact_summary", "") or "")
-    fact_b = (getattr(b, "fact_summary", "") or "")
-    score_a = len(desc_a) + len(fact_a)
-    score_b = len(desc_b) + len(fact_b)
+    # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+    # fact_a = (getattr(a, "fact_summary", "") or "")
+    # fact_b = (getattr(b, "fact_summary", "") or "")
+    # score_a = len(desc_a) + len(fact_a)
+    # score_b = len(desc_b) + len(fact_b)
+    score_a = len(desc_a)
+    score_b = len(desc_b)
     if score_a != score_b:
         return 0 if score_a >= score_b else 1
     return 0
@@ -189,7 +192,8 @@ async def _judge_pair(
         "entity_type": getattr(a, "entity_type", None),
         "description": getattr(a, "description", None),
         "aliases": getattr(a, "aliases", None) or [],
-        "fact_summary": getattr(a, "fact_summary", None),
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # "fact_summary": getattr(a, "fact_summary", None),
         "connect_strength": getattr(a, "connect_strength", None),
     }
     entity_b = {
@@ -197,7 +201,8 @@ async def _judge_pair(
         "entity_type": getattr(b, "entity_type", None),
         "description": getattr(b, "description", None),
         "aliases": getattr(b, "aliases", None) or [],
-        "fact_summary": getattr(b, "fact_summary", None),
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # "fact_summary": getattr(b, "fact_summary", None),
         "connect_strength": getattr(b, "connect_strength", None),
     }
  # 5. 渲染LLM提示词（用工具函数填充模板，包含实体信息、上下文、输出格式）
@@ -248,7 +253,8 @@ async def _judge_pair_disamb(
         "entity_type": getattr(a, "entity_type", None),
         "description": getattr(a, "description", None),
         "aliases": getattr(a, "aliases", None) or [],
-        "fact_summary": getattr(a, "fact_summary", None),
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # "fact_summary": getattr(a, "fact_summary", None),
         "connect_strength": getattr(a, "connect_strength", None),
     }
     entity_b = {
@@ -256,7 +262,8 @@ async def _judge_pair_disamb(
         "entity_type": getattr(b, "entity_type", None),
         "description": getattr(b, "description", None),
         "aliases": getattr(b, "aliases", None) or [],
-        "fact_summary": getattr(b, "fact_summary", None),
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # "fact_summary": getattr(b, "fact_summary", None),
         "connect_strength": getattr(b, "connect_strength", None),
     }
     prompt = render_entity_dedup_prompt(
diff --git a/api/app/core/memory/storage_services/extraction_engine/deduplication/second_layer_dedup.py b/api/app/core/memory/storage_services/extraction_engine/deduplication/second_layer_dedup.py
index dbc697d9..028a926f 100644
--- a/api/app/core/memory/storage_services/extraction_engine/deduplication/second_layer_dedup.py
+++ b/api/app/core/memory/storage_services/extraction_engine/deduplication/second_layer_dedup.py
@@ -72,7 +72,8 @@ def _row_to_entity(row: Dict[str, Any]) -> ExtractedEntityNode:
         description=row.get("description") or "",
         aliases=row.get("aliases") or [],
         name_embedding=row.get("name_embedding") or [],
-        fact_summary=row.get("fact_summary") or "",
+        # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        # fact_summary=row.get("fact_summary") or "",
         connect_strength=row.get("connect_strength") or "",
     )
 
diff --git a/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py b/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
index 98bec522..08be0aeb 100644
--- a/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
+++ b/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
@@ -1088,7 +1088,8 @@ class ExtractionOrchestrator:
                                     entity_type=getattr(entity, 'type', 'unknown'),  # 使用 type 而不是 entity_type
                                     description=getattr(entity, 'description', ''),  # 添加必需的 description 字段
                                     example=getattr(entity, 'example', ''),  # 新增：传递示例字段
-                                    fact_summary=getattr(entity, 'fact_summary', ''),  # 添加必需的 fact_summary 字段
+                                    # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+                                    # fact_summary=getattr(entity, 'fact_summary', ''),  # 添加必需的 fact_summary 字段
                                     connect_strength=entity_connect_strength if entity_connect_strength is not None else 'Strong',  # 添加必需的 connect_strength 字段
                                     aliases=getattr(entity, 'aliases', []) or [],  # 传递从三元组提取阶段获取的aliases
                                     name_embedding=getattr(entity, 'name_embedding', None),
diff --git a/api/app/core/memory/utils/alias_utils.py b/api/app/core/memory/utils/alias_utils.py
index df75752a..ff139128 100644
--- a/api/app/core/memory/utils/alias_utils.py
+++ b/api/app/core/memory/utils/alias_utils.py
@@ -296,7 +296,9 @@ def resolve_alias_cycles(entities: List[Any], cycles: Dict[str, Set[str]]) -> Li
             key=lambda eid: (
                 _strength_rank(eid),
                 len(getattr(entity_by_id.get(eid), 'description', '') or ''),
-                len(getattr(entity_by_id.get(eid), 'fact_summary', '') or '')
+                # TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+                # len(getattr(entity_by_id.get(eid), 'fact_summary', '') or '')
+                0  # 临时占位
             ),
             reverse=True
         )
diff --git a/api/app/core/memory/utils/prompt/prompts/entity_dedup.jinja2 b/api/app/core/memory/utils/prompt/prompts/entity_dedup.jinja2
index be53c9d4..7fb465a2 100644
--- a/api/app/core/memory/utils/prompt/prompts/entity_dedup.jinja2
+++ b/api/app/core/memory/utils/prompt/prompts/entity_dedup.jinja2
@@ -9,7 +9,8 @@
 - 类型: "{{ entity_a.entity_type | default('') }}"
 - 描述: "{{ entity_a.description | default('') }}"
 - 别名: {{ entity_a.aliases | default([]) }}
-- 摘要: "{{ entity_a.fact_summary | default('') }}"
+{# TODO: fact_summary 功能暂时禁用，待后续开发完善后启用 #}
+{# - 摘要: "{{ entity_a.fact_summary | default('') }}" #}
 - 连接强弱: "{{ entity_a.connect_strength | default('') }}"
 
 实体B:
@@ -17,7 +18,8 @@
 - 类型: "{{ entity_b.entity_type | default('') }}"
 - 描述: "{{ entity_b.description | default('') }}"
 - 别名: {{ entity_b.aliases | default([]) }}
-- 摘要: "{{ entity_b.fact_summary | default('') }}"
+{# TODO: fact_summary 功能暂时禁用，待后续开发完善后启用 #}
+{# - 摘要: "{{ entity_b.fact_summary | default('') }}" #}
 - 连接强弱: "{{ entity_b.connect_strength | default('') }}"
 
 上下文：
diff --git a/api/app/core/rag/crawler/__init__.py b/api/app/core/rag/crawler/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/api/app/core/rag/crawler/__main__.py b/api/app/core/rag/crawler/__main__.py
new file mode 100644
index 00000000..51a6870f
--- /dev/null
+++ b/api/app/core/rag/crawler/__main__.py
@@ -0,0 +1,89 @@
+"""Command-line interface for web crawler."""
+
+import argparse
+import logging
+import sys
+from app.core.rag.crawler.web_crawler import WebCrawler
+
+
+def setup_logging(verbose: bool = False):
+    """Set up logging configuration."""
+    level = logging.DEBUG if verbose else logging.INFO
+    logging.basicConfig(
+        level=level,
+        format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+        handlers=[
+            logging.StreamHandler(sys.stdout)
+        ]
+    )
+
+
+def main(entry_url: str,
+         max_pages: int = 200,
+         delay_seconds: float = 1.0,
+         timeout_seconds: int = 10,
+         user_agent: str = "KnowledgeBaseCrawler/1.0"):
+    """Main entry point for the crawler."""
+    # Create crawler
+    crawler = WebCrawler(
+        entry_url=entry_url,
+        max_pages=max_pages,
+        delay_seconds=delay_seconds,
+        timeout_seconds=timeout_seconds,
+        user_agent=user_agent
+    )
+
+    # Crawl and collect documents
+    documents = []
+    try:
+        for doc in crawler.crawl():
+            print(f"\n{'=' * 80}")
+            print(f"URL: {doc.url}")
+            print(f"Title: {doc.title}")
+            print(f"Content Length: {doc.content_length} characters")
+            print(f"Word Count: {doc.metadata.get('word_count', 0)} words")
+            print(f"{'=' * 80}\n")
+
+            documents.append({
+                'url': doc.url,
+                'title': doc.title,
+                'content': doc.content,
+                'content_length': doc.content_length,
+                'crawl_timestamp': doc.crawl_timestamp.isoformat(),
+                'http_status': doc.http_status,
+                'metadata': doc.metadata
+            })
+
+    except KeyboardInterrupt:
+        print("\n\nCrawl interrupted by user.")
+
+    except Exception as e:
+        print(f"\n\nError during crawl: {e}")
+        sys.exit(1)
+
+    # Get summary
+    summary = crawler.get_summary()
+    print(f"\n{'=' * 80}")
+    print("CRAWL SUMMARY")
+    print(f"{'=' * 80}")
+    print(f"Total Pages Processed: {summary.total_pages_processed}")
+    print(f"Total Errors: {summary.total_errors}")
+    print(f"Total Skipped: {summary.total_skipped}")
+    print(f"Total URLs Discovered: {summary.total_urls_discovered}")
+    print(f"Duration: {summary.duration_seconds:.2f} seconds")
+    print(f"documents: {documents}")
+
+    if summary.error_breakdown:
+        print(f"\nError Breakdown:")
+        for error_type, count in summary.error_breakdown.items():
+            print(f"  {error_type}: {count}")
+
+
+if __name__ == '__main__':
+    entry_url = "https://www.xxx.com"
+    max_pages = 20
+    delay_seconds = 1.0
+    timeout_seconds = 10
+    user_agent = "KnowledgeBaseCrawler/1.0"
+
+    main(entry_url, max_pages, delay_seconds, timeout_seconds, user_agent)
diff --git a/api/app/core/rag/crawler/content_extractor.py b/api/app/core/rag/crawler/content_extractor.py
new file mode 100644
index 00000000..69dca53c
--- /dev/null
+++ b/api/app/core/rag/crawler/content_extractor.py
@@ -0,0 +1,233 @@
+"""Content extractor for web crawler."""
+
+from bs4 import BeautifulSoup
+import re
+import logging
+
+from app.core.rag.crawler.models import ExtractedContent
+
+logger = logging.getLogger(__name__)
+
+
+class ContentExtractor:
+    """Extract clean, readable text from HTML pages."""
+    
+    # Tags to remove completely
+    REMOVE_TAGS = ['script', 'style', 'nav', 'header', 'footer', 'aside']
+    
+    # Tags that typically contain main content
+    MAIN_CONTENT_TAGS = ['article', 'main']
+    
+    # Content extraction tags
+    CONTENT_TAGS = ['p', 'div', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'li', 'td', 'th', 'section']
+    
+    def is_static_content(self, html: str) -> bool:
+        """
+        Determine if the HTML represents static content.
+        
+        Detects JavaScript-rendered content by checking for minimal body
+        with heavy script tag presence.
+        
+        Args:
+            html: Raw HTML string
+        
+        Returns:
+            bool: True if static, False if JavaScript-rendered
+        """
+        try:
+            soup = BeautifulSoup(html, 'lxml')
+            
+            # Count script tags
+            script_tags = soup.find_all('script')
+            script_count = len(script_tags)
+            
+            # Get body content (excluding scripts and styles)
+            body = soup.find('body')
+            if not body:
+                return False
+            
+            # Remove scripts and styles temporarily for text check
+            for tag in body.find_all(['script', 'style']):
+                tag.decompose()
+            
+            # Get text content
+            text = body.get_text(strip=True)
+            text_length = len(text)
+            
+            # If there's very little text but many scripts, likely JS-rendered
+            if script_count > 5 and text_length < 200:
+                logger.warning("Detected JavaScript-rendered content (many scripts, little text)")
+                return False
+            
+            # If there's no meaningful text, likely JS-rendered
+            if text_length < 50:
+                logger.warning("Detected JavaScript-rendered content (minimal text)")
+                return False
+            
+            return True
+            
+        except Exception as e:
+            logger.error(f"Error checking if content is static: {e}")
+            return True  # Assume static on error
+    
+    def extract(self, html: str, url: str) -> ExtractedContent:
+        """
+        Extract clean text content from HTML.
+        
+        Args:
+            html: Raw HTML string
+            url: Source URL (for context)
+        
+        Returns:
+            ExtractedContent: Contains title, text, metadata
+        """
+        try:
+            soup = BeautifulSoup(html, 'lxml')
+            
+            # Check if content is static
+            is_static = self.is_static_content(html)
+            
+            # Extract title
+            title = self._extract_title(soup)
+            
+            # Remove unwanted tags
+            for tag_name in self.REMOVE_TAGS:
+                for tag in soup.find_all(tag_name):
+                    tag.decompose()
+            
+            # Extract main content
+            text = self._extract_main_content(soup)
+            
+            # Normalize whitespace
+            text = self._normalize_whitespace(text)
+            
+            # Count words
+            word_count = len(text.split())
+            
+            logger.info(f"Extracted {word_count} words from {url}")
+            
+            return ExtractedContent(
+                title=title,
+                text=text,
+                is_static=is_static,
+                word_count=word_count,
+                metadata={'url': url}
+            )
+            
+        except Exception as e:
+            logger.error(f"Error extracting content from {url}: {e}")
+            return ExtractedContent(
+                title=url,
+                text="",
+                is_static=False,
+                word_count=0,
+                metadata={'url': url, 'error': str(e)}
+            )
+    
+    def _extract_title(self, soup: BeautifulSoup) -> str:
+        """
+        Extract title from HTML.
+        
+        Tries <title> tag first, then first <h1>.
+        
+        Args:
+            soup: BeautifulSoup object
+        
+        Returns:
+            str: Page title
+        """
+        # Try <title> tag
+        title_tag = soup.find('title')
+        if title_tag and title_tag.string:
+            return title_tag.string.strip()
+        
+        # Try first <h1>
+        h1_tag = soup.find('h1')
+        if h1_tag:
+            return h1_tag.get_text(strip=True)
+        
+        # Default to empty string
+        return ""
+    
+    def _extract_main_content(self, soup: BeautifulSoup) -> str:
+        """
+        Extract main content from HTML.
+        
+        Prioritizes semantic HTML5 elements like <article> and <main>.
+        
+        Args:
+            soup: BeautifulSoup object
+        
+        Returns:
+            str: Extracted text content
+        """
+        # Try to find main content area
+        main_content = None
+        
+        # Priority 1: <article> or <main> tags
+        for tag_name in self.MAIN_CONTENT_TAGS:
+            main_content = soup.find(tag_name)
+            if main_content:
+                logger.debug(f"Found main content in <{tag_name}> tag")
+                break
+        
+        # Priority 2: div with role="main"
+        if not main_content:
+            main_content = soup.find('div', role='main')
+            if main_content:
+                logger.debug("Found main content in div[role='main']")
+        
+        # Priority 3: Common class/id patterns
+        if not main_content:
+            for pattern in ['content', 'main', 'article', 'post']:
+                main_content = soup.find(['div', 'section'], class_=re.compile(pattern, re.I))
+                if main_content:
+                    logger.debug(f"Found main content with class pattern '{pattern}'")
+                    break
+                
+                main_content = soup.find(['div', 'section'], id=re.compile(pattern, re.I))
+                if main_content:
+                    logger.debug(f"Found main content with id pattern '{pattern}'")
+                    break
+        
+        # Fallback: use body
+        if not main_content:
+            main_content = soup.find('body')
+            logger.debug("Using <body> as main content (no specific content area found)")
+        
+        # Extract text from content tags
+        if main_content:
+            text_parts = []
+            for tag in main_content.find_all(self.CONTENT_TAGS):
+                text = tag.get_text(strip=True)
+                if text:
+                    text_parts.append(text)
+            
+            return '\n'.join(text_parts)
+        
+        return ""
+    
+    def _normalize_whitespace(self, text: str) -> str:
+        """
+        Normalize whitespace in text.
+        
+        - Collapse multiple spaces to single space
+        - Reduce excessive newlines to maximum 2
+        - Strip leading/trailing whitespace
+        
+        Args:
+            text: Text to normalize
+        
+        Returns:
+            str: Normalized text
+        """
+        # Collapse multiple spaces to single space
+        text = re.sub(r' +', ' ', text)
+        
+        # Reduce excessive newlines to maximum 2
+        text = re.sub(r'\n{3,}', '\n\n', text)
+        
+        # Strip leading/trailing whitespace
+        text = text.strip()
+        
+        return text
diff --git a/api/app/core/rag/crawler/http_fetcher.py b/api/app/core/rag/crawler/http_fetcher.py
new file mode 100644
index 00000000..b3a08098
--- /dev/null
+++ b/api/app/core/rag/crawler/http_fetcher.py
@@ -0,0 +1,302 @@
+"""HTTP fetcher for web crawler."""
+
+import requests
+import time
+import logging
+import re
+from typing import Optional, Dict
+
+
+from app.core.rag.crawler.models import FetchResult
+
+logger = logging.getLogger(__name__)
+
+
+class HTTPFetcher:
+    """Handle HTTP requests with retries, error handling, and response validation."""
+    
+    def __init__(
+        self,
+        timeout: int = 10,
+        max_retries: int = 3,
+        user_agent: str = "KnowledgeBaseCrawler/1.0"
+    ):
+        """
+        Initialize HTTP fetcher.
+        
+        Args:
+            timeout: Request timeout in seconds
+            max_retries: Maximum number of retry attempts
+            user_agent: User-Agent header value
+        """
+        self.timeout = timeout
+        self.max_retries = max_retries
+        self.user_agent = user_agent
+        
+        # Create session for connection pooling
+        self.session = requests.Session()
+        self.session.headers.update({
+            'User-Agent': user_agent
+        })
+    
+    def fetch(self, url: str) -> FetchResult:
+        """
+        Fetch a URL with retry logic and error handling.
+        
+        Args:
+            url: URL to fetch
+        
+        Returns:
+            FetchResult: Contains status_code, content, headers, error info
+        """
+        last_error = None
+        
+        for attempt in range(self.max_retries):
+            try:
+                # Calculate backoff delay for retries
+                if attempt > 0:
+                    backoff_delay = 2 ** (attempt - 1)  # 1s, 2s, 4s
+                    logger.info(f"Retry attempt {attempt + 1}/{self.max_retries} for {url} after {backoff_delay}s")
+                    time.sleep(backoff_delay)
+                
+                # Make HTTP request
+                response = self.session.get(
+                    url,
+                    timeout=self.timeout,
+                    allow_redirects=True
+                )
+                
+                # Handle different status codes
+                if response.status_code == 429:
+                    # Too Many Requests - backoff and retry
+                    logger.warning(f"429 Too Many Requests for {url}, backing off")
+                    if attempt < self.max_retries - 1:
+                        continue
+                
+                if response.status_code == 503:
+                    # Service Unavailable - pause and retry
+                    logger.warning(f"503 Service Unavailable for {url}")
+                    if attempt < self.max_retries - 1:
+                        time.sleep(5)  # Longer pause for 503
+                        continue
+                
+                # Success or client error (don't retry 4xx except 429)
+                if 200 <= response.status_code < 300:
+                    logger.info(f"Successfully fetched {url} (status: {response.status_code})")
+
+                    # Get correctly encoded content
+                    content = self._get_decoded_content(response)
+
+                    return FetchResult(
+                        url=url,
+                        final_url=response.url,
+                        status_code=response.status_code,
+                        content=content,
+                        headers=dict(response.headers),
+                        error=None,
+                        success=True
+                    )
+                elif response.status_code == 404:
+                    logger.info(f"404 Not Found: {url}")
+                    return FetchResult(
+                        url=url,
+                        final_url=response.url,
+                        status_code=response.status_code,
+                        content=None,
+                        headers=dict(response.headers),
+                        error="Not Found",
+                        success=False
+                    )
+                elif 400 <= response.status_code < 500:
+                    logger.warning(f"Client error {response.status_code} for {url}")
+                    return FetchResult(
+                        url=url,
+                        final_url=response.url,
+                        status_code=response.status_code,
+                        content=None,
+                        headers=dict(response.headers),
+                        error=f"Client error: {response.status_code}",
+                        success=False
+                    )
+                elif 500 <= response.status_code < 600:
+                    logger.error(f"Server error {response.status_code} for {url}")
+                    last_error = f"Server error: {response.status_code}"
+                    if attempt < self.max_retries - 1:
+                        continue
+                    return FetchResult(
+                        url=url,
+                        final_url=url,
+                        status_code=response.status_code,
+                        content=None,
+                        headers={},
+                        error=last_error,
+                        success=False
+                    )
+                
+            except requests.exceptions.Timeout:
+                last_error = "Request timeout"
+                logger.warning(f"Timeout fetching {url} (attempt {attempt + 1}/{self.max_retries})")
+                if attempt >= self.max_retries - 1:
+                    break
+                continue
+            
+            except requests.exceptions.SSLError as e:
+                last_error = f"SSL/TLS error: {str(e)}"
+                logger.error(f"SSL/TLS error for {url}: {e}")
+                return FetchResult(
+                    url=url,
+                    final_url=url,
+                    status_code=0,
+                    content=None,
+                    headers={},
+                    error=last_error,
+                    success=False
+                )
+            
+            except requests.exceptions.ConnectionError as e:
+                last_error = f"Connection error: {str(e)}"
+                logger.warning(f"Connection error for {url} (attempt {attempt + 1}/{self.max_retries}): {e}")
+                if attempt >= self.max_retries - 1:
+                    break
+                continue
+            
+            except requests.exceptions.RequestException as e:
+                last_error = f"Request error: {str(e)}"
+                logger.error(f"Request error for {url}: {e}")
+                if attempt >= self.max_retries - 1:
+                    break
+                continue
+        
+        # All retries exhausted
+        logger.error(f"Failed to fetch {url} after {self.max_retries} attempts: {last_error}")
+        return FetchResult(
+            url=url,
+            final_url=url,
+            status_code=0,
+            content=None,
+            headers={},
+            error=last_error or "Unknown error",
+            success=False
+        )
+
+    def _get_decoded_content(self, response) -> str:
+        """
+        Get correctly decoded content from response.
+
+        Handles encoding detection and fallback strategies:
+        1. Try encoding from HTML meta tags
+        2. Try response.encoding (from Content-Type header or detected)
+        3. Try UTF-8
+        4. Try common encodings (GB2312, GBK for Chinese, etc.)
+        5. Fall back to latin-1 with error replacement
+
+        Args:
+            response: requests.Response object
+
+        Returns:
+            str: Decoded content
+        """
+        # Try to detect encoding from HTML meta tags
+        meta_encoding = self._detect_encoding_from_meta(response.content)
+        if meta_encoding:
+            try:
+                content = response.content.decode(meta_encoding)
+                logger.info(f"Successfully decoded with meta tag encoding: {meta_encoding}")
+                return content
+            except (UnicodeDecodeError, LookupError) as e:
+                logger.warning(f"Failed to decode with meta encoding {meta_encoding}: {e}")
+
+        # Try response.encoding (from Content-Type header or detected by requests)
+        if response.encoding and response.encoding.lower() != 'iso-8859-1':
+            # Note: requests defaults to ISO-8859-1 if no charset in Content-Type,
+            # so we skip it here and try UTF-8 first
+            try:
+                return response.text
+            except (UnicodeDecodeError, LookupError) as e:
+                logger.warning(f"Failed to decode with detected encoding {response.encoding}: {e}")
+
+        # Try UTF-8 first (most common)
+        try:
+            return response.content.decode('utf-8')
+        except UnicodeDecodeError:
+            logger.debug("UTF-8 decoding failed, trying other encodings")
+
+        # Try common encodings for different languages
+        encodings_to_try = [
+            'gbk',  # Chinese (Simplified)
+            'gb2312',  # Chinese (Simplified, older)
+            'gb18030',  # Chinese (Simplified, extended)
+            'big5',  # Chinese (Traditional)
+            'shift_jis',  # Japanese
+            'euc-jp',  # Japanese
+            'euc-kr',  # Korean
+            'iso-8859-1',  # Western European
+            'windows-1252',  # Windows Western European
+            'windows-1251',  # Cyrillic
+        ]
+
+        for encoding in encodings_to_try:
+            try:
+                content = response.content.decode(encoding)
+                logger.info(f"Successfully decoded with {encoding}")
+                return content
+            except (UnicodeDecodeError, LookupError):
+                continue
+
+        # Last resort: use latin-1 with error replacement
+        logger.warning("All encoding attempts failed, using latin-1 with error replacement")
+        return response.content.decode('latin-1', errors='replace')
+
+    def _detect_encoding_from_meta(self, content: bytes) -> Optional[str]:
+        """
+        Detect encoding from HTML meta tags.
+
+        Looks for:
+        - <meta charset="...">
+        - <meta http-equiv="Content-Type" content="...; charset=...">
+
+        Args:
+            content: Raw response content (bytes)
+
+        Returns:
+            Optional[str]: Detected encoding or None
+        """
+        try:
+            # Only check first 2KB for performance
+            head = content[:2048]
+
+            # Try to decode as ASCII/Latin-1 to search for meta tags
+            try:
+                head_str = head.decode('ascii', errors='ignore')
+            except:
+                head_str = head.decode('latin-1', errors='ignore')
+
+            # Look for <meta charset="...">
+            charset_match = re.search(
+                r'<meta[^>]+charset=["\']?([a-zA-Z0-9_-]+)',
+                head_str,
+                re.IGNORECASE
+            )
+            if charset_match:
+                encoding = charset_match.group(1).lower()
+                logger.debug(f"Found charset in meta tag: {encoding}")
+                return encoding
+
+            # Look for <meta http-equiv="Content-Type" content="...; charset=...">
+            content_type_match = re.search(
+                r'<meta[^>]+http-equiv=["\']?content-type["\']?[^>]+content=["\']([^"\']+)',
+                head_str,
+                re.IGNORECASE
+            )
+            if content_type_match:
+                content_value = content_type_match.group(1)
+                charset_match = re.search(r'charset=([a-zA-Z0-9_-]+)', content_value, re.IGNORECASE)
+                if charset_match:
+                    encoding = charset_match.group(1).lower()
+                    logger.debug(f"Found charset in Content-Type meta: {encoding}")
+                    return encoding
+
+        except Exception as e:
+            logger.debug(f"Error detecting encoding from meta tags: {e}")
+
+        return None
diff --git a/api/app/core/rag/crawler/models.py b/api/app/core/rag/crawler/models.py
new file mode 100644
index 00000000..5d10963c
--- /dev/null
+++ b/api/app/core/rag/crawler/models.py
@@ -0,0 +1,52 @@
+"""Data models for web crawler."""
+
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Dict, Any, Optional
+
+
+@dataclass
+class CrawledDocument:
+    """Represents a successfully processed web page with extracted content."""
+    url: str
+    title: str
+    content: str
+    content_length: int
+    crawl_timestamp: datetime
+    http_status: int
+    metadata: Dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass
+class FetchResult:
+    """Represents the result of an HTTP fetch operation."""
+    url: str
+    final_url: str
+    status_code: int
+    content: Optional[str]
+    headers: Dict[str, str]
+    error: Optional[str]
+    success: bool
+
+
+@dataclass
+class ExtractedContent:
+    """Represents content extracted from HTML."""
+    title: str
+    text: str
+    is_static: bool
+    word_count: int
+    metadata: Dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass
+class CrawlSummary:
+    """Represents statistics from a completed crawl."""
+    total_pages_processed: int
+    total_errors: int
+    total_skipped: int
+    total_urls_discovered: int
+    start_time: datetime
+    end_time: datetime
+    duration_seconds: float
+    error_breakdown: Dict[str, int] = field(default_factory=dict)
diff --git a/api/app/core/rag/crawler/rate_limiter.py b/api/app/core/rag/crawler/rate_limiter.py
new file mode 100644
index 00000000..e00fad36
--- /dev/null
+++ b/api/app/core/rag/crawler/rate_limiter.py
@@ -0,0 +1,57 @@
+"""Rate limiter for web crawler."""
+
+import time
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class RateLimiter:
+    """Enforce delays between requests to be polite to servers."""
+    
+    def __init__(self, delay_seconds: float = 1.0):
+        """
+        Initialize rate limiter.
+        
+        Args:
+            delay_seconds: Minimum delay between requests
+        """
+        self.delay_seconds = delay_seconds
+        self.last_request_time = 0.0
+        self.max_delay = 60.0  # Cap maximum delay at 60 seconds
+    
+    def wait(self):
+        """
+        Block until enough time has passed since last request.
+        Respects the configured delay.
+        """
+        current_time = time.time()
+        elapsed = current_time - self.last_request_time
+        
+        if elapsed < self.delay_seconds:
+            sleep_time = self.delay_seconds - elapsed
+            logger.debug(f"Rate limiting: sleeping for {sleep_time:.2f} seconds")
+            time.sleep(sleep_time)
+        
+        self.last_request_time = time.time()
+    
+    def set_delay(self, delay_seconds: float):
+        """
+        Update the delay (useful for respecting Crawl-delay from robots.txt).
+        
+        Args:
+            delay_seconds: New delay in seconds
+        """
+        self.delay_seconds = min(delay_seconds, self.max_delay)
+        logger.info(f"Rate limiter delay updated to {self.delay_seconds} seconds")
+    
+    def backoff(self, multiplier: float = 2.0):
+        """
+        Increase delay exponentially for backoff scenarios (429, 503 responses).
+        
+        Args:
+            multiplier: Factor to multiply current delay by
+        """
+        old_delay = self.delay_seconds
+        self.delay_seconds = min(self.delay_seconds * multiplier, self.max_delay)
+        logger.warning(f"Rate limiter backing off: {old_delay:.2f}s -> {self.delay_seconds:.2f}s")
diff --git a/api/app/core/rag/crawler/robots_parser.py b/api/app/core/rag/crawler/robots_parser.py
new file mode 100644
index 00000000..882bc9c8
--- /dev/null
+++ b/api/app/core/rag/crawler/robots_parser.py
@@ -0,0 +1,118 @@
+"""Robots.txt parser for web crawler."""
+
+from urllib.robotparser import RobotFileParser
+from urllib.parse import urlparse, urljoin
+from typing import Optional
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class RobotsParser:
+    """Parse and check robots.txt compliance for URLs."""
+    
+    def __init__(self, user_agent: str, timeout: int = 10):
+        """
+        Initialize robots.txt parser.
+        
+        Args:
+            user_agent: User agent string to check permissions for
+            timeout: Timeout for fetching robots.txt
+        """
+        self.user_agent = user_agent
+        self.timeout = timeout
+        self._parsers = {}  # Cache parsers by domain
+    
+    def _get_robots_url(self, url: str) -> str:
+        """
+        Get the robots.txt URL for a given URL.
+        
+        Args:
+            url: URL to get robots.txt for
+        
+        Returns:
+            str: robots.txt URL
+        """
+        parsed = urlparse(url)
+        robots_url = f"{parsed.scheme}://{parsed.netloc}/robots.txt"
+        return robots_url
+    
+    def _get_parser(self, url: str) -> RobotFileParser:
+        """
+        Get or create a RobotFileParser for the domain.
+        
+        Args:
+            url: URL to get parser for
+        
+        Returns:
+            RobotFileParser: Parser for the domain
+        """
+        robots_url = self._get_robots_url(url)
+        
+        # Return cached parser if available
+        if robots_url in self._parsers:
+            return self._parsers[robots_url]
+        
+        # Create new parser
+        parser = RobotFileParser()
+        parser.set_url(robots_url)
+        
+        try:
+            # Fetch and parse robots.txt
+            parser.read()
+            logger.info(f"Successfully fetched robots.txt from {robots_url}")
+        except Exception as e:
+            # If robots.txt cannot be fetched, assume all URLs are allowed
+            logger.warning(f"Could not fetch robots.txt from {robots_url}: {e}. Assuming all URLs allowed.")
+            # Create a permissive parser
+            parser = RobotFileParser()
+            parser.parse([])  # Empty robots.txt allows everything
+        
+        # Cache the parser
+        self._parsers[robots_url] = parser
+        return parser
+    
+    def can_fetch(self, url: str) -> bool:
+        """
+        Check if the given URL can be fetched according to robots.txt.
+        
+        Args:
+            url: URL to check
+        
+        Returns:
+            bool: True if allowed, False if disallowed
+        """
+        try:
+            parser = self._get_parser(url)
+            allowed = parser.can_fetch(self.user_agent, url)
+            
+            if not allowed:
+                logger.info(f"URL disallowed by robots.txt: {url}")
+            
+            return allowed
+        except Exception as e:
+            logger.error(f"Error checking robots.txt for {url}: {e}")
+            # On error, assume allowed
+            return True
+    
+    def get_crawl_delay(self, url: str) -> Optional[float]:
+        """
+        Get the Crawl-delay directive from robots.txt if present.
+        
+        Args:
+            url: URL to get crawl delay for
+        
+        Returns:
+            Optional[float]: Delay in seconds, or None if not specified
+        """
+        try:
+            parser = self._get_parser(url)
+            delay = parser.crawl_delay(self.user_agent)
+            
+            if delay is not None:
+                logger.info(f"Crawl-delay from robots.txt: {delay} seconds")
+            
+            return delay
+        except Exception as e:
+            logger.error(f"Error getting crawl delay for {url}: {e}")
+            return None
diff --git a/api/app/core/rag/crawler/url_normalizer.py b/api/app/core/rag/crawler/url_normalizer.py
new file mode 100644
index 00000000..7762a9d5
--- /dev/null
+++ b/api/app/core/rag/crawler/url_normalizer.py
@@ -0,0 +1,171 @@
+"""URL normalization and validation for web crawler."""
+
+from typing import Optional, List
+from urllib.parse import urlparse, urlunparse, parse_qs, urlencode, urljoin
+from bs4 import BeautifulSoup
+
+
+class URLNormalizer:
+    """Normalize and validate URLs for deduplication and domain checking."""
+    
+    # Common tracking parameters to remove
+    TRACKING_PARAMS = {
+        'utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
+        'fbclid', 'gclid', 'msclkid', '_ga', 'mc_cid', 'mc_eid'
+    }
+    
+    def __init__(self, base_domain: str):
+        """
+        Initialize URL normalizer with base domain.
+        
+        Args:
+            base_domain: The domain to use for same-domain checks
+        """
+        parsed = urlparse(base_domain)
+        self.base_domain = parsed.netloc.lower() # example.com:8000
+        self.base_scheme = parsed.scheme or 'https' # https
+    
+    def normalize(self, url: str) -> Optional[str]:
+        """
+        Normalize a URL for deduplication.
+        
+        Normalization rules:
+        1. Convert domain to lowercase
+        2. Remove fragments (#section)
+        3. Remove default ports (80 for http, 443 for https)
+        4. Remove trailing slashes (except for root)
+        5. Sort query parameters alphabetically
+        6. Remove common tracking parameters
+        
+        Args:
+            url: URL to normalize
+        
+        Returns:
+            Optional[str]: Normalized URL, or None if invalid
+        """
+        try:
+            parsed = urlparse(url)
+            
+            # Validate scheme
+            if parsed.scheme not in ('http', 'https'):
+                return None
+            
+            # Normalize domain to lowercase
+            netloc = parsed.netloc.lower()
+            
+            # Remove default ports
+            if ':' in netloc:
+                host, port = netloc.rsplit(':', 1)
+                if (parsed.scheme == 'http' and port == '80') or \
+                   (parsed.scheme == 'https' and port == '443'):
+                    netloc = host
+            
+            # Normalize path
+            path = parsed.path
+            # Remove trailing slash except for root
+            if path != '/' and path.endswith('/'):
+                path = path.rstrip('/')
+            # Ensure path starts with /
+            if not path:
+                path = '/'
+            
+            # Process query parameters
+            query = ''
+            if parsed.query:
+                # Parse query parameters
+                params = parse_qs(parsed.query, keep_blank_values=True)
+                # Remove tracking parameters
+                filtered_params = {
+                    k: v for k, v in params.items() 
+                    if k not in self.TRACKING_PARAMS
+                }
+                # Sort parameters alphabetically
+                if filtered_params:
+                    sorted_params = sorted(filtered_params.items())
+                    query = urlencode(sorted_params, doseq=True)
+            
+            # Reconstruct URL without fragment
+            normalized = urlunparse((
+                parsed.scheme,
+                netloc,
+                path,
+                parsed.params,
+                query,
+                ''  # Remove fragment
+            ))
+            
+            return normalized
+            
+        except Exception:
+            return None
+    
+    def is_same_domain(self, url: str) -> bool:
+        """
+        Check if URL belongs to the same domain as base_domain.
+        
+        Args:
+            url: URL to check
+        
+        Returns:
+            bool: True if same domain, False otherwise
+        """
+        try:
+            parsed = urlparse(url)
+            domain = parsed.netloc.lower()
+            
+            # Remove port if present
+            if ':' in domain:
+                domain = domain.split(':')[0]
+            
+            # Check if domains match
+            return domain == self.base_domain or domain == self.base_domain.split(':')[0]
+            
+        except Exception:
+            return False
+    
+    def extract_links(self, html: str, base_url: str) -> List[str]:
+        """
+        Extract and normalize all links from HTML.
+        
+        Args:
+            html: HTML content
+            base_url: Base URL for resolving relative links
+        
+        Returns:
+            List[str]: List of normalized absolute URLs
+        """
+        links = []
+        
+        try:
+            soup = BeautifulSoup(html, 'lxml')
+            
+            # Find all anchor tags
+            for anchor in soup.find_all('a', href=True):
+                href = anchor['href']
+                
+                # Skip empty hrefs
+                if not href or href.strip() == '':
+                    continue
+                
+                # Skip javascript: and mailto: links
+                if href.startswith(('javascript:', 'mailto:', 'tel:')):
+                    continue
+
+                normalized_url = None
+                # Check if href starts with http/https (absolute URL)
+                if href.startswith(('http://', 'https://')):
+                    if self.is_same_domain(href):
+                        normalized_url = self.normalize(href)
+                else:
+                    # Convert relative URL to absolute
+                    absolute_url = urljoin(base_url, href)
+                    # Normalize the URL
+                    normalized_url = self.normalize(absolute_url)
+                
+                if normalized_url:
+                    links.append(normalized_url)
+
+        except Exception:
+            pass
+        
+        return links
diff --git a/api/app/core/rag/crawler/web_crawler.py b/api/app/core/rag/crawler/web_crawler.py
new file mode 100644
index 00000000..3afa09b2
--- /dev/null
+++ b/api/app/core/rag/crawler/web_crawler.py
@@ -0,0 +1,215 @@
+"""Main web crawler orchestrator."""
+
+from collections import deque
+from datetime import datetime
+from typing import Iterator, Optional, List, Set
+from urllib.parse import urlparse
+import logging
+
+from app.core.rag.crawler.url_normalizer import URLNormalizer
+from app.core.rag.crawler.robots_parser import RobotsParser
+from app.core.rag.crawler.rate_limiter import RateLimiter
+from app.core.rag.crawler.http_fetcher import HTTPFetcher
+from app.core.rag.crawler.content_extractor import ContentExtractor
+from app.core.rag.crawler.models import CrawledDocument, CrawlSummary
+
+logger = logging.getLogger(__name__)
+
+
+class WebCrawler:
+    """Main orchestrator for web crawling."""
+    
+    def __init__(
+        self,
+        entry_url: str,
+        max_pages: int = 200,
+        delay_seconds: float = 1.0,
+        timeout_seconds: int = 10,
+        user_agent: str = "KnowledgeBaseCrawler/1.0",
+        include_patterns: Optional[List[str]] = None,
+        exclude_patterns: Optional[List[str]] = None,
+        content_extractor: Optional[ContentExtractor] = None
+    ):
+        """
+        Initialize the web crawler.
+        
+        Args:
+            entry_url: Starting URL for the crawl
+            max_pages: Maximum number of pages to crawl (default: 200)
+            delay_seconds: Delay between requests in seconds (default: 1.0)
+            timeout_seconds: HTTP request timeout (default: 10)
+            user_agent: User-Agent header string
+            include_patterns: List of regex patterns for URLs to include
+            exclude_patterns: List of regex patterns for URLs to exclude
+            content_extractor: Custom content extractor (optional)
+        """
+        # Validate entry URL
+        parsed = urlparse(entry_url)
+        if not parsed.scheme or not parsed.netloc:
+            raise ValueError(f"Invalid entry URL: {entry_url}")
+        
+        self.entry_url = entry_url
+        self.max_pages = max_pages
+        self.user_agent = user_agent
+        
+        # Extract domain from entry URL
+        self.domain = parsed.netloc
+        
+        # Initialize components
+        self.url_normalizer = URLNormalizer(entry_url)
+        self.robots_parser = RobotsParser(user_agent, timeout_seconds)
+        self.rate_limiter = RateLimiter(delay_seconds)
+        self.http_fetcher = HTTPFetcher(timeout_seconds, max_retries=3, user_agent=user_agent)
+        self.content_extractor = content_extractor or ContentExtractor()
+        
+        # State management
+        self.url_queue: deque = deque()
+        self.visited_urls: Set[str] = set()
+        self.pages_processed = 0
+        
+        # Statistics
+        self.stats = {
+            'success': 0,
+            'errors': 0,
+            'skipped': 0,
+            'urls_discovered': 0,
+            'error_breakdown': {}
+        }
+        self.start_time: Optional[datetime] = None
+        self.end_time: Optional[datetime] = None
+    
+    def crawl(self) -> Iterator[CrawledDocument]:
+        """
+        Execute the crawl and yield documents as they are processed.
+        
+        Yields:
+            CrawledDocument: Structured document with extracted content
+        """
+        logger.info(f"Starting crawl from {self.entry_url} (max_pages: {self.max_pages})")
+        self.start_time = datetime.now()
+        
+        # Add entry URL to queue
+        normalized_entry = self.url_normalizer.normalize(self.entry_url)
+        if normalized_entry:
+            self.url_queue.append(normalized_entry)
+            self.stats['urls_discovered'] += 1
+        
+        # Check robots.txt and update rate limiter if needed
+        crawl_delay = self.robots_parser.get_crawl_delay(self.entry_url)
+        if crawl_delay:
+            self.rate_limiter.set_delay(crawl_delay)
+        
+        # Main crawl loop
+        while self.url_queue and self.pages_processed < self.max_pages:
+            url = self.url_queue.popleft()
+            
+            # Skip if already visited
+            if url in self.visited_urls:
+                continue
+            
+            # Mark as visited
+            self.visited_urls.add(url)
+            
+            # Check robots.txt permission
+            if not self.robots_parser.can_fetch(url):
+                logger.info(f"Skipping {url} (disallowed by robots.txt)")
+                self.stats['skipped'] += 1
+                continue
+            
+            # Apply rate limiting
+            self.rate_limiter.wait()
+            
+            # Fetch URL
+            logger.info(f"Fetching {url} ({self.pages_processed + 1}/{self.max_pages})")
+            fetch_result = self.http_fetcher.fetch(url)
+            
+            # Handle fetch errors
+            if not fetch_result.success:
+                self._record_error(fetch_result.error or "Unknown error")
+                continue
+            
+            # Check Content-Type
+            content_type = fetch_result.headers.get('Content-Type', '').lower()
+            if not any(substring in content_type for substring in ['text/html', 'application/xhtml+xml']):
+                logger.warning(f"Skipping {url} (Content-Type: {content_type})")
+                self.stats['skipped'] += 1
+                continue
+
+            # Extract content
+            try:
+                extracted = self.content_extractor.extract(fetch_result.content, url)
+                
+                # Check if static content
+                if not extracted.is_static:
+                    logger.warning(f"Skipping {url} (JavaScript-rendered content)")
+                    self.stats['skipped'] += 1
+                    continue
+                
+                # Create document
+                document = CrawledDocument(
+                    url=url,
+                    title=extracted.title,
+                    content=extracted.text,
+                    content_length=len(extracted.text),
+                    crawl_timestamp=datetime.now(),
+                    http_status=fetch_result.status_code,
+                    metadata={
+                        'word_count': extracted.word_count,
+                        'final_url': fetch_result.final_url
+                    }
+                )
+                
+                # Update statistics
+                self.pages_processed += 1
+                self.stats['success'] += 1
+                
+                # Extract and queue links
+                links = self.url_normalizer.extract_links(fetch_result.content, url)
+                for link in links:
+                    if link not in self.visited_urls and self.url_normalizer.is_same_domain(link):
+                        if link not in self.url_queue:
+                            self.url_queue.append(link)
+                            self.stats['urls_discovered'] += 1
+                
+                # Yield document
+                yield document
+                
+            except Exception as e:
+                logger.error(f"Error processing {url}: {e}")
+                self._record_error(f"Processing error: {str(e)}")
+                continue
+        
+        self.end_time = datetime.now()
+        logger.info(f"Crawl completed. Processed {self.pages_processed} pages.")
+    
+    def get_summary(self) -> CrawlSummary:
+        """
+        Get summary statistics after crawl completion.
+        
+        Returns:
+            CrawlSummary: Statistics including success/error/skip counts
+        """
+        if not self.start_time:
+            self.start_time = datetime.now()
+        if not self.end_time:
+            self.end_time = datetime.now()
+        
+        duration = (self.end_time - self.start_time).total_seconds()
+        
+        return CrawlSummary(
+            total_pages_processed=self.stats['success'],
+            total_errors=self.stats['errors'],
+            total_skipped=self.stats['skipped'],
+            total_urls_discovered=self.stats['urls_discovered'],
+            start_time=self.start_time,
+            end_time=self.end_time,
+            duration_seconds=duration,
+            error_breakdown=self.stats['error_breakdown']
+        )
+    
+    def _record_error(self, error: str):
+        """Record an error in statistics."""
+        self.stats['errors'] += 1
+        error_type = error.split(':')[0] if ':' in error else error
+        self.stats['error_breakdown'][error_type] = \
+            self.stats['error_breakdown'].get(error_type, 0) + 1
diff --git a/api/app/core/rag/integrations/__init__.py b/api/app/core/rag/integrations/__init__.py
new file mode 100644
index 00000000..c1c43854
--- /dev/null
+++ b/api/app/core/rag/integrations/__init__.py
@@ -0,0 +1 @@
+"""Integrations package for external services."""
diff --git a/api/app/core/rag/integrations/feishu/__init__.py b/api/app/core/rag/integrations/feishu/__init__.py
new file mode 100644
index 00000000..d989b816
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/__init__.py
@@ -0,0 +1 @@
+"""Feishu integration module for document synchronization."""
diff --git a/api/app/core/rag/integrations/feishu/__main__.py b/api/app/core/rag/integrations/feishu/__main__.py
new file mode 100644
index 00000000..79d5a48e
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/__main__.py
@@ -0,0 +1,84 @@
+"""Command-line interface for feishu integration."""
+
+import asyncio
+import sys
+from app.core.rag.integrations.feishu.client import FeishuAPIClient
+from app.core.rag.integrations.feishu.models import FileInfo
+
+
+def main(feishu_app_id: str,  # Feishu application ID
+               feishu_app_secret: str,  # Feishu application secret
+               feishu_folder_token: str,  # Feishu Folder Token
+               save_dir: str,       # save file directory
+               feishu_api_base_url: str = "https://open.feishu.cn/open-apis",  # Feishu API base URL
+               timeout: int = 30,  # Request timeout in seconds
+               max_retries: int = 3,  # Maximum number of retries
+               recursive: bool = True # recursive: Whether to sync subfolders recursively,
+               ):
+    """Main entry point for the feishuAPIClient."""
+    # Create feishuAPIClient
+    api_client = FeishuAPIClient(
+        app_id=feishu_app_id,
+        app_secret=feishu_app_secret,
+        api_base_url=feishu_api_base_url,
+        timeout=timeout,
+        max_retries=max_retries
+    )
+
+    # Get all files from folder
+    async def async_get_files(api_client: FeishuAPIClient, feishu_folder_token: str):
+        async with api_client as client:
+            if recursive:
+                files = await client.list_all_folder_files(feishu_folder_token, recursive=True)
+            else:
+                all_files = []
+                page_token = None
+                while True:
+                    files_page, page_token = await client.list_folder_files(
+                        feishu_folder_token, page_token
+                    )
+                    all_files.extend(files_page)
+                    if not page_token:
+                        break
+                files = all_files
+            return files
+    files = asyncio.run(async_get_files(api_client,feishu_folder_token))
+
+    # Filter out folders, only sync documents
+    # documents = [f for f in files if f.type in ["doc", "docx", "sheet", "bitable", "file", "slides"]]
+    documents = [f for f in files if f.type in ["doc", "docx", "sheet", "bitable", "file"]]
+
+    try:
+        for doc in documents:
+            print(f"\n{'=' * 80}")
+            print(f"token: {doc.token}")
+            print(f"name: {doc.name}")
+            print(f"type: {doc.type}")
+            print(f"created_time: {doc.created_time}")
+            print(f"modified_time: {doc.modified_time}")
+            print(f"owner_id: {doc.owner_id}")
+            print(f"url: {doc.url}")
+            print(f"{'=' * 80}\n")
+            # download document from Feishu FileInfo
+            async def async_download_document(api_client: FeishuAPIClient, doc: FileInfo, save_dir: str):
+                async with api_client as client:
+                    file_path = await client.download_document(document=doc, save_dir=save_dir)
+                    return file_path
+
+            file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+            print(file_path)
+
+    except KeyboardInterrupt:
+        print("\n\nfeishu integration interrupted by user.")
+
+    except Exception as e:
+        print(f"\n\nError during feishu integration: {e}")
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    feishu_app_id = ""
+    feishu_app_secret = ""
+    feishu_folder_token = ""
+    save_dir = "/Volumes/MacintoshBD/Repository/RedBearAI/MemoryBear/api/files/"
+    main(feishu_app_id, feishu_app_secret, feishu_folder_token, save_dir)
diff --git a/api/app/core/rag/integrations/feishu/client.py b/api/app/core/rag/integrations/feishu/client.py
new file mode 100644
index 00000000..0a3c4ea8
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/client.py
@@ -0,0 +1,452 @@
+"""Feishu API client for document operations."""
+
+import asyncio
+import os
+import re
+from typing import Optional, Tuple, List
+from datetime import datetime, timedelta
+import httpx
+from cachetools import TTLCache
+import urllib.parse
+
+from app.core.rag.integrations.feishu.exceptions import (
+    FeishuAuthError,
+    FeishuAPIError,
+    FeishuNotFoundError,
+    FeishuPermissionError,
+    FeishuRateLimitError,
+    FeishuNetworkError,
+)
+from app.core.rag.integrations.feishu.models import FileInfo
+from app.core.rag.integrations.feishu.retry import with_retry
+
+
+class FeishuAPIClient:
+    """Feishu API client for document synchronization."""
+
+    def __init__(
+        self,
+        app_id: str,
+        app_secret: str,
+        api_base_url: str = "https://open.feishu.cn/open-apis",
+        timeout: int = 30,
+        max_retries: int = 3
+    ):
+        """
+        Initialize Feishu API client.
+        
+        Args:
+            app_id: Feishu application ID
+            app_secret: Feishu application secret
+            api_base_url: Feishu API base URL
+            timeout: Request timeout in seconds
+            max_retries: Maximum number of retries
+        """
+        self.app_id = app_id
+        self.app_secret = app_secret
+        self.api_base_url = api_base_url
+        self.timeout = timeout
+        self.max_retries = max_retries
+        self._http_client: Optional[httpx.AsyncClient] = None
+        self._token_cache: TTLCache = TTLCache(maxsize=1, ttl=7200 - 300)  # 2 hours - 5 minutes
+        self._token_lock = asyncio.Lock()
+
+    async def __aenter__(self):
+        """Async context manager entry."""
+        self._http_client = httpx.AsyncClient(
+            base_url=self.api_base_url,
+            timeout=self.timeout,
+            headers={"Content-Type": "application/json"}
+        )
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        """Async context manager exit."""
+        if self._http_client:
+            await self._http_client.aclose()
+
+    async def get_tenant_access_token(self) -> str:
+        """
+        Get tenant access token with caching.
+        
+        Returns:
+            Access token string
+            
+        Raises:
+            FeishuAuthError: If authentication fails
+        """
+        # Check cache first
+        cached_token = self._token_cache.get("access_token")
+        if cached_token:
+            return cached_token
+
+        # Use lock to prevent concurrent token requests
+        async with self._token_lock:
+            # Double-check cache after acquiring lock
+            cached_token = self._token_cache.get("access_token")
+            if cached_token:
+                return cached_token
+
+            # Request new token
+            try:
+                if not self._http_client:
+                    raise FeishuAuthError("HTTP client not initialized")
+
+                response = await self._http_client.post(
+                    "/auth/v3/tenant_access_token/internal",
+                    json={
+                        "app_id": self.app_id,
+                        "app_secret": self.app_secret
+                    }
+                )
+
+                data = response.json()
+
+                if data.get("code") != 0:
+                    error_msg = data.get("msg", "Unknown error")
+                    raise FeishuAuthError(
+                        f"Authentication failed: {error_msg}",
+                        error_code=str(data.get("code")),
+                        details=data
+                    )
+
+                token = data.get("tenant_access_token")
+                if not token:
+                    raise FeishuAuthError("No access token in response")
+
+                # Cache the token
+                self._token_cache["access_token"] = token
+
+                return token
+
+            except httpx.HTTPError as e:
+                raise FeishuAuthError(f"HTTP error during authentication: {str(e)}")
+            except Exception as e:
+                if isinstance(e, FeishuAuthError):
+                    raise
+                raise FeishuAuthError(f"Unexpected error during authentication: {str(e)}")
+
+    @with_retry
+    async def list_folder_files(
+            self,
+            folder_token: str,
+            page_token: Optional[str] = None
+    ) -> Tuple[List[FileInfo], Optional[str]]:
+        """
+        Get list of files in a folder with pagination support.
+        
+        Args:
+            folder_token: Folder token
+            page_token: Page token for pagination
+            
+        Returns:
+            Tuple of (list of FileInfo, next page token)
+            
+        Raises:
+            FeishuAPIError: If API call fails
+            FeishuNotFoundError: If folder not found
+            FeishuPermissionError: If permission denied
+        """
+        try:
+            token = await self.get_tenant_access_token()
+
+            if not self._http_client:
+                raise FeishuAPIError("HTTP client not initialized")
+
+            # Build request parameters
+            params = {"page_size": 200, "folder_token": folder_token}
+            if page_token:
+                params["page_token"] = page_token
+
+            # Make API request
+            response = await self._http_client.get(
+                f"/drive/v1/files",
+                params=params,
+                headers={"Authorization": f"Bearer {token}"}
+            )
+
+            data = response.json()
+            # print(f"get files: {data}")
+
+            # Handle errors
+            if data.get("code") != 0:
+                error_code = data.get("code")
+                error_msg = data.get("msg", "Unknown error")
+
+                if error_code == 404 or error_code == 230005:
+                    raise FeishuNotFoundError(
+                        f"Folder not found: {error_msg}",
+                        error_code=str(error_code),
+                        details=data
+                    )
+                elif error_code == 403 or error_code == 230003:
+                    raise FeishuPermissionError(
+                        f"Permission denied: {error_msg}",
+                        error_code=str(error_code),
+                        details=data
+                    )
+                else:
+                    raise FeishuAPIError(
+                        f"API error: {error_msg}",
+                        error_code=str(error_code),
+                        details=data
+                    )
+
+            # Parse response
+            files_data = data.get("data", {}).get("files", [])
+            next_page_token = data.get("data", {}).get("next_page_token", None)
+
+            # Convert to FileInfo objects
+            files = []
+            for file_data in files_data:
+                try:
+                    file_info = FileInfo(
+                        token=file_data.get("token", ""),
+                        name=file_data.get("name", ""),
+                        type=file_data.get("type", ""),
+                        created_time=datetime.fromtimestamp(int(file_data.get("created_time", 0))),
+                        modified_time=datetime.fromtimestamp(int(file_data.get("modified_time", 0))),
+                        owner_id=file_data.get("owner_id", ""),
+                        url=file_data.get("url", "")
+                    )
+                    files.append(file_info)
+                except (ValueError, TypeError) as e:
+                    # Skip invalid file entries
+                    continue
+
+            return files, next_page_token
+
+        except httpx.HTTPError as e:
+            raise FeishuAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            if isinstance(e, (FeishuAPIError, FeishuNotFoundError, FeishuPermissionError)):
+                raise
+            raise FeishuAPIError(f"Unexpected error: {str(e)}")
+
+    async def list_all_folder_files(
+            self,
+            folder_token: str,
+            recursive: bool = True
+    ) -> List[FileInfo]:
+        """
+        Get all files in a folder, handling pagination automatically.
+
+        Args:
+            folder_token: Folder token
+            recursive: Whether to recursively get files from subfolders
+
+        Returns:
+            List of all FileInfo objects
+
+        Raises:
+            FeishuAPIError: If API call fails
+        """
+        all_files = []
+        page_token = None
+
+        # Get all files with pagination
+        while True:
+            files, page_token = await self.list_folder_files(folder_token, page_token)
+            all_files.extend(files)
+
+            if not page_token:
+                break
+
+        # Recursively get files from subfolders if requested
+        if recursive:
+            subfolders = [f for f in all_files if f.type == "folder"]
+            for subfolder in subfolders:
+                try:
+                    subfolder_files = await self.list_all_folder_files(
+                        subfolder.token,
+                        recursive=True
+                    )
+                    all_files.extend(subfolder_files)
+                except Exception:
+                    # Continue with other folders if one fails
+                    continue
+
+        return all_files
+
+    @with_retry
+    async def download_document(
+            self,
+            document: FileInfo,
+            save_dir: str
+    ) -> str:
+        """
+        download document content.
+        
+        Args:
+            document: Document FileInfo
+            save_dir: save dir
+            
+        Returns:
+            file_full_path
+            
+        Raises:
+            FeishuAPIError: If API call fails
+            FeishuNotFoundError: If document not found
+            FeishuPermissionError: If permission denied
+        """
+        try:
+            token = await self.get_tenant_access_token()
+
+            if not self._http_client:
+                raise FeishuAPIError("HTTP client not initialized")
+
+            # Different API endpoints for different document types
+            if document.type == "doc" or document.type == "docx" or document.type == "sheet" or document.type == "bitable":
+                return await self._export_file(document, token, save_dir)
+            elif document.type == "file" or document.type == "slides":
+                return await self._download_file(document, token, save_dir)
+            else:
+                raise FeishuAPIError(f"Unsupported document type: {document.type}")
+
+        except Exception as e:
+            if isinstance(e, (FeishuAPIError, FeishuNotFoundError, FeishuPermissionError)):
+                raise
+            raise FeishuAPIError(f"Unexpected error: {str(e)}")
+
+    async def _export_file(self, document: FileInfo, access_token: str, save_dir: str) -> str:
+        """export file for feishu online file type."""
+        try:
+            # 1.创建导出任务
+            file_extension = "pdf"
+            match document.type:
+                case "doc":
+                    file_extension = "doc"
+                case "docx":
+                    file_extension = "docx"
+                case "sheet":
+                    file_extension = "xlsx"
+                case "bitable":
+                    file_extension = "xlsx"
+                case _:
+                    file_extension = "pdf"
+            response = await self._http_client.post(
+                "/drive/v1/export_tasks",
+                json={
+                    "file_extension": file_extension,
+                    "token": document.token,
+                    "type": document.type
+                },
+                headers={"Authorization": f"Bearer {access_token}"}
+            )
+            data = response.json()
+            print(f"1.创建导出任务: {data}")
+
+            if data.get("code") != 0:
+                error_code = data.get("code")
+                error_msg = data.get("msg", "Unknown error")
+                raise FeishuAPIError(
+                    f"API error: {error_msg}",
+                    error_code=str(error_code),
+                    details=data
+                )
+
+            ticket = data.get("data", {}).get("ticket", None)
+            if not ticket:
+                raise FeishuAuthError("No ticket in response")
+
+            # 2.轮序查询导出任务结果
+            max_retries = 10  # 最大轮询次数
+            poll_interval = 2  # 每次轮询间隔时间（秒）
+            file_token = None
+            for attempt in range(max_retries):
+                # 查询导出任务
+                response = await self._http_client.get(
+                    f"/drive/v1/export_tasks/{ticket}",
+                    params={"token": document.token},
+                    headers={"Authorization": f"Bearer {access_token}"}
+                )
+                data = response.json()
+                print(f"2. 尝试查询导出任务结果 (第{attempt + 1}次): {data}")
+
+                if data.get("code") != 0:
+                    error_code = data.get("code")
+                    error_msg = data.get("msg", "Unknown error")
+                    raise FeishuAPIError(
+                        f"API error: {error_msg}",
+                        error_code=str(error_code),
+                        details=data,
+                    )
+
+                # 检查导出任务结果
+                file_token = data.get("data", {}).get("result", {}).get("file_token", None)
+                if file_token:
+                    # 如果导出任务成功生成 file_token，则退出轮询
+                    break
+
+                # 如果结果还没准备好，等待一段时间再进行下一次轮询
+                await asyncio.sleep(poll_interval)
+
+            if not file_token:
+                raise FeishuAPIError("Export task did not complete within the allowed time")
+
+            # 3.下载导出任务
+            response = await self._http_client.get(
+                f"/drive/v1/export_tasks/file/{file_token}/download",
+                headers={"Authorization": f"Bearer {access_token}"}
+            )
+            response.raise_for_status()
+            print(f'3.下载导出任务: {response.headers.get("Content-Disposition")}')
+
+            file_full_path = os.path.join(save_dir, document.name + "." + file_extension)
+            if os.path.exists(file_full_path):
+                os.remove(file_full_path)  # Delete a single file
+            with open(file_full_path, "wb") as file:
+                file.write(response.content)
+
+            return file_full_path
+
+        except httpx.HTTPError as e:
+            raise FeishuAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            raise FeishuAPIError(f"Unexpected error during file download: {str(e)}")
+
+    async def _download_file(self, document: FileInfo, access_token: str, save_dir: str) -> str:
+        """download file for file type."""
+        try:
+            response = await self._http_client.get(
+                f"/drive/v1/files/{document.token}/download",
+                headers={"Authorization": f"Bearer {access_token}"}
+            )
+            response.raise_for_status()
+
+            filename_header = response.headers.get("Content-Disposition")
+
+            # 最终的文件名（初始化为 None）
+            filename = None
+            if filename_header:
+                # 优先解析 filename* 格式
+                match = re.search(r"filename\*=([^']*)''([^;]+)", filename_header)
+                if match:
+                    # 使用 `filename*` 提取（已编码）
+                    encoding = match.group(1)  # 编码部分（如 UTF-8）
+                    encoded_filename = match.group(2)  # 文件名部分
+                    filename = urllib.parse.unquote(encoded_filename)  # 解码 URL 编码的文件名
+
+                # 如果 `filename*` 不存在，回退到解析 `filename`
+                if not filename:
+                    match = re.search(r'filename="([^"]+)"', filename_header)
+                    if match:
+                        filename = match.group(1)
+            # 如果文件名仍为 None，则使用默认文件名
+            if not filename:
+                filename = f"{document.name}.pdf"
+            # 确保文件名合法，替换非法字符
+            filename = re.sub(r'[\/:*?"<>|]', '_', filename)
+
+            file_full_path = os.path.join(save_dir, filename)
+            if os.path.exists(file_full_path):
+                os.remove(file_full_path) # Delete a single file
+            with open(file_full_path, "wb") as file:
+                file.write(response.content)
+
+            return file_full_path
+
+        except httpx.HTTPError as e:
+            raise FeishuAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            raise FeishuAPIError(f"Unexpected error during file download: {str(e)}")
diff --git a/api/app/core/rag/integrations/feishu/exceptions.py b/api/app/core/rag/integrations/feishu/exceptions.py
new file mode 100644
index 00000000..26e42a07
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/exceptions.py
@@ -0,0 +1,46 @@
+"""Exception classes for Feishu integration."""
+
+
+class FeishuError(Exception):
+    """Base exception for all Feishu-related errors."""
+    
+    def __init__(self, message: str, error_code: str = None, details: dict = None):
+        super().__init__(message)
+        self.message = message
+        self.error_code = error_code
+        self.details = details or {}
+
+
+class FeishuAuthError(FeishuError):
+    """Authentication error with Feishu API."""
+    pass
+
+
+class FeishuAPIError(FeishuError):
+    """General API error from Feishu."""
+    pass
+
+
+class FeishuNotFoundError(FeishuError):
+    """Resource not found error (404)."""
+    pass
+
+
+class FeishuPermissionError(FeishuError):
+    """Permission denied error (403)."""
+    pass
+
+
+class FeishuRateLimitError(FeishuError):
+    """Rate limit exceeded error (429)."""
+    pass
+
+
+class FeishuNetworkError(FeishuError):
+    """Network-related error (timeout, connection failure)."""
+    pass
+
+
+class FeishuDataError(FeishuError):
+    """Data parsing or validation error."""
+    pass
diff --git a/api/app/core/rag/integrations/feishu/models.py b/api/app/core/rag/integrations/feishu/models.py
new file mode 100644
index 00000000..b194afc1
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/models.py
@@ -0,0 +1,17 @@
+"""Data models for Feishu integration."""
+
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Dict, Any, List, Optional
+
+
+@dataclass
+class FileInfo:
+    """File information from Feishu."""
+    token: str
+    name: str
+    type: str  # doc/docx/sheet/bitable/file/slides/folder
+    created_time: datetime
+    modified_time: datetime
+    owner_id: str
+    url: str
diff --git a/api/app/core/rag/integrations/feishu/retry.py b/api/app/core/rag/integrations/feishu/retry.py
new file mode 100644
index 00000000..c1d9aff1
--- /dev/null
+++ b/api/app/core/rag/integrations/feishu/retry.py
@@ -0,0 +1,137 @@
+"""Retry strategy for Feishu API calls."""
+
+import asyncio
+import functools
+from typing import Callable, TypeVar
+import httpx
+
+from app.core.rag.integrations.feishu.exceptions import (
+    FeishuAuthError,
+    FeishuPermissionError,
+    FeishuNotFoundError,
+    FeishuRateLimitError,
+    FeishuNetworkError,
+    FeishuDataError,
+    FeishuAPIError,
+)
+
+T = TypeVar('T')
+
+
+class RetryStrategy:
+    """Retry strategy for API calls."""
+    
+    # Retryable error types
+    RETRYABLE_ERRORS = (
+        FeishuNetworkError,
+        FeishuRateLimitError,
+        httpx.TimeoutException,
+        httpx.ConnectError,
+        httpx.ReadError,
+    )
+    
+    # Non-retryable error types
+    NON_RETRYABLE_ERRORS = (
+        FeishuAuthError,
+        FeishuPermissionError,
+        FeishuNotFoundError,
+        FeishuDataError,
+    )
+    
+    # Retry configuration
+    MAX_RETRIES = 3
+    BACKOFF_DELAYS = [1, 2, 4]  # seconds
+    
+    @classmethod
+    def is_retryable(cls, error: Exception) -> bool:
+        """Check if an error is retryable."""
+        # Check for specific retryable errors
+        if isinstance(error, cls.RETRYABLE_ERRORS):
+            return True
+        
+        # Check for non-retryable errors
+        if isinstance(error, cls.NON_RETRYABLE_ERRORS):
+            return False
+        
+        # Check for HTTP status codes
+        if isinstance(error, httpx.HTTPStatusError):
+            status_code = error.response.status_code
+            # Retry on 429 (rate limit), 503 (service unavailable), 502 (bad gateway)
+            if status_code in [429, 502, 503]:
+                return True
+            # Don't retry on 4xx errors (except 429)
+            if 400 <= status_code < 500:
+                return False
+            # Retry on 5xx errors
+            if 500 <= status_code < 600:
+                return True
+        
+        # Check for FeishuAPIError with specific codes
+        if isinstance(error, FeishuAPIError):
+            if error.error_code:
+                # Rate limit error codes
+                if error.error_code in ["99991400", "99991401"]:
+                    return True
+        
+        return False
+    
+    @classmethod
+    async def execute_with_retry(
+        cls,
+        func: Callable[..., T],
+        *args,
+        **kwargs
+    ) -> T:
+        """
+        Execute a function with retry logic.
+        
+        Args:
+            func: Async function to execute
+            *args: Positional arguments for the function
+            **kwargs: Keyword arguments for the function
+            
+        Returns:
+            Function result
+            
+        Raises:
+            Exception: The last exception if all retries fail
+        """
+        last_exception = None
+        
+        for attempt in range(cls.MAX_RETRIES + 1):
+            try:
+                return await func(*args, **kwargs)
+            except Exception as e:
+                last_exception = e
+                
+                # Don't retry if not retryable
+                if not cls.is_retryable(e):
+                    raise
+                
+                # Don't retry if this was the last attempt
+                if attempt >= cls.MAX_RETRIES:
+                    raise
+                
+                # Wait before retrying
+                delay = cls.BACKOFF_DELAYS[attempt] if attempt < len(cls.BACKOFF_DELAYS) else cls.BACKOFF_DELAYS[-1]
+                await asyncio.sleep(delay)
+        
+        # Should not reach here, but raise last exception if we do
+        if last_exception:
+            raise last_exception
+
+
+def with_retry(func: Callable[..., T]) -> Callable[..., T]:
+    """
+    Decorator to add retry logic to async functions.
+    
+    Usage:
+        @with_retry
+        async def my_api_call():
+            ...
+    """
+    @functools.wraps(func)
+    async def wrapper(*args, **kwargs):
+        return await RetryStrategy.execute_with_retry(func, *args, **kwargs)
+    
+    return wrapper
diff --git a/api/app/core/rag/integrations/yuque/__init__.py b/api/app/core/rag/integrations/yuque/__init__.py
new file mode 100644
index 00000000..dc4f2a17
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/__init__.py
@@ -0,0 +1 @@
+"""Yuque integration module for document synchronization."""
diff --git a/api/app/core/rag/integrations/yuque/__main__.py b/api/app/core/rag/integrations/yuque/__main__.py
new file mode 100644
index 00000000..3b87bbcd
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/__main__.py
@@ -0,0 +1,77 @@
+"""Main entry point for Yuque integration testing."""
+
+import asyncio
+import sys
+from app.core.rag.integrations.yuque.client import YuqueAPIClient
+from app.core.rag.integrations.yuque.models import YuqueDocInfo
+
+
+def main(yuque_user_id: str,  # yuque User ID
+               yuque_token: str,    # yuque Token
+               save_dir: str,       # save file directory
+               ):
+    """Main entry point for the YuqueAPIClient."""
+    # Create feishuAPIClient
+    api_client = YuqueAPIClient(
+        user_id=yuque_user_id,
+        token=yuque_token
+    )
+
+    # Get all files from all repos
+    async def async_get_files(api_client: YuqueAPIClient):
+        async with api_client as client:
+            print("\n=== Fetching repositories ===")
+            repos = await client.get_user_repos()
+            print(f"Found {len(repos)} repositories:")
+            all_files = []
+            for repo in repos:
+                # Get documents from repository
+                print(f"\n=== Fetching documents from '{repo.name}' ===")
+                docs = await client.get_repo_docs(repo.id)
+                all_files.extend(docs)
+            return all_files
+    files = asyncio.run(async_get_files(api_client))
+
+    try:
+        for doc in files:
+            print(f"\n{'=' * 80}")
+            print(f"id: {doc.id}")
+            print(f"type: {doc.type}")
+            print(f"slug: {doc.slug}")
+            print(f"title: {doc.title}")
+            print(f"book_id: {doc.book_id}")
+            # print(f"format: {doc.format}")
+            # print(f"body: {doc.body}")
+            # print(f"body_draft: {doc.body_draft}")
+            # print(f"body_html: {doc.body_html}")
+            print(f"public: {doc.public}")
+            print(f"status: {doc.status}")
+            print(f"created_at: {doc.created_at}")
+            print(f"updated_at: {doc.updated_at}")
+            print(f"published_at: {doc.published_at}")
+            print(f"word_count: {doc.word_count}")
+            print(f"cover: {doc.cover}")
+            print(f"description: {doc.description}")
+            print(f"{'=' * 80}\n")
+            # download document from Feishu FileInfo
+            async def async_download_document(api_client: YuqueAPIClient, doc: YuqueDocInfo, save_dir: str):
+                async with api_client as client:
+                    file_path = await client.download_document(doc, save_dir)
+                    return file_path
+
+            file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+            print(file_path)
+
+    except KeyboardInterrupt:
+        print("\n\nfeishu integration interrupted by user.")
+
+    except Exception as e:
+        print(f"\n\nError during feishu integration: {e}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    yuque_user_id = ""
+    yuque_token = ""
+    save_dir = "/Volumes/MacintoshBD/Repository/RedBearAI/MemoryBear/api/files/"
+    main(yuque_user_id, yuque_token, save_dir)
diff --git a/api/app/core/rag/integrations/yuque/client.py b/api/app/core/rag/integrations/yuque/client.py
new file mode 100644
index 00000000..444d9d31
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/client.py
@@ -0,0 +1,544 @@
+"""Yuque API client for document operations."""
+
+import os
+import re
+from typing import Optional, List
+from datetime import datetime, timedelta
+import httpx
+import urllib.parse
+import json
+from openpyxl import Workbook
+from openpyxl.styles import Font, Alignment, PatternFill
+from openpyxl.utils import get_column_letter
+import zlib
+
+from app.core.rag.integrations.yuque.exceptions import (
+    YuqueAuthError,
+    YuqueAPIError,
+    YuqueNotFoundError,
+    YuquePermissionError,
+    YuqueRateLimitError,
+    YuqueNetworkError,
+)
+from app.core.rag.integrations.yuque.models import YuqueDocInfo, YuqueRepoInfo
+from app.core.rag.integrations.yuque.retry import with_retry
+
+
+class YuqueAPIClient:
+    """Yuque API client for document synchronization."""
+    
+    def __init__(
+        self,
+        user_id: str,
+        token: str,
+        api_base_url: str = "https://www.yuque.com/api/v2",
+        timeout: int = 30,
+        max_retries: int = 3
+    ):
+        """
+        Initialize Yuque API client.
+        
+        Args:
+            user_id: Yuque user ID or login name
+            token: Yuque personal access token
+            api_base_url: Yuque API base URL
+            timeout: Request timeout in seconds
+            max_retries: Maximum number of retries
+        """
+        self.user_id = user_id
+        self.token = token
+        self.api_base_url = api_base_url
+        self.timeout = timeout
+        self.max_retries = max_retries
+        self._http_client: Optional[httpx.AsyncClient] = None
+    
+    async def __aenter__(self):
+        """Async context manager entry."""
+        self._http_client = httpx.AsyncClient(
+            base_url=self.api_base_url,
+            timeout=self.timeout,
+            headers={
+                "Content-Type": "application/json",
+                "X-Auth-Token": self.token,
+                "User-Agent": "Yuque-Integration-Client"
+            }
+        )
+        return self
+    
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        """Async context manager exit."""
+        if self._http_client:
+            await self._http_client.aclose()
+    
+    def _handle_api_error(self, response: httpx.Response):
+        """Handle API error responses."""
+        try:
+            data = response.json()
+        except Exception:
+            data = {}
+        
+        status_code = response.status_code
+        error_msg = data.get("message", "Unknown error")
+        
+        # Rate limit errors
+        if status_code == 429:
+            raise YuqueRateLimitError(
+                f"Rate limit exceeded: {error_msg}",
+                error_code=str(status_code),
+                details=data
+            )
+        # Not found errors
+        elif status_code == 404:
+            raise YuqueNotFoundError(
+                f"Resource not found: {error_msg}",
+                error_code=str(status_code),
+                details=data
+            )
+        # Permission errors
+        elif status_code == 403:
+            raise YuquePermissionError(
+                f"Permission denied: {error_msg}",
+                error_code=str(status_code),
+                details=data
+            )
+        # Authentication errors
+        elif status_code == 401:
+            raise YuqueAuthError(
+                f"Authentication failed: {error_msg}",
+                error_code=str(status_code),
+                details=data
+            )
+        # Generic API error
+        else:
+            raise YuqueAPIError(
+                f"API error: {error_msg}",
+                error_code=str(status_code),
+                details=data
+            )
+    
+    @with_retry
+    async def get_user_repos(self) -> List[YuqueRepoInfo]:
+        """
+        Get all repositories (知识库) for the user.
+        
+        Returns:
+            List of YuqueRepoInfo objects
+            
+        Raises:
+            YuqueAPIError: If API call fails
+        """
+        try:
+            if not self._http_client:
+                raise YuqueAPIError("HTTP client not initialized")
+            
+            response = await self._http_client.get(f"/users/{self.user_id}/repos")
+            
+            if response.status_code != 200:
+                self._handle_api_error(response)
+            
+            data = response.json()
+            repos_data = data.get("data", [])
+            
+            repos = []
+            for repo_data in repos_data:
+                try:
+                    repo = YuqueRepoInfo(
+                        id=repo_data.get("id"),
+                        type=repo_data.get("type", ""),
+                        name=repo_data.get("name", ""),
+                        namespace=repo_data.get("namespace", ""),
+                        slug=repo_data.get("slug", ""),
+                        description=repo_data.get("description"),
+                        public=repo_data.get("public", 0),
+                        items_count=repo_data.get("items_count", 0),
+                        created_at=datetime.fromisoformat(repo_data.get("created_at", "").replace("Z", "+00:00")),
+                        updated_at=datetime.fromisoformat(repo_data.get("updated_at", "").replace("Z", "+00:00"))
+                    )
+                    repos.append(repo)
+                except (ValueError, TypeError, KeyError) as e:
+                    # Skip invalid repo entries
+                    continue
+            
+            return repos
+            
+        except httpx.HTTPError as e:
+            raise YuqueAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            if isinstance(e, (YuqueAPIError, YuqueAuthError)):
+                raise
+            raise YuqueAPIError(f"Unexpected error: {str(e)}")
+    
+    @with_retry
+    async def get_repo_docs(self, book_id: int) -> List[YuqueDocInfo]:
+        """
+        Get all documents in a repository.
+        
+        Args:
+            book_id: repository id
+            
+        Returns:
+            List of YuqueDocInfo objects (without body content)
+            
+        Raises:
+            YuqueAPIError: If API call fails
+        """
+        try:
+            if not self._http_client:
+                raise YuqueAPIError("HTTP client not initialized")
+            
+            response = await self._http_client.get(f"/repos/{book_id}/docs")
+            
+            if response.status_code != 200:
+                self._handle_api_error(response)
+            
+            data = response.json()
+            docs_data = data.get("data", [])
+            
+            docs = []
+            for doc_data in docs_data:
+                try:
+                    published_at = doc_data.get("published_at")
+                    doc = YuqueDocInfo(
+                        id=doc_data.get("id"),
+                        type=doc_data.get("type", ""),
+                        slug=doc_data.get("slug", ""),
+                        title=doc_data.get("title", ""),
+                        book_id=doc_data.get("book_id"),
+                        format=doc_data.get("format", "markdown"),
+                        body=None,  # Body not included in list API
+                        body_draft=None,
+                        body_html=None,
+                        public=doc_data.get("public", 0),
+                        status=doc_data.get("status", 0),
+                        created_at=datetime.fromisoformat(doc_data.get("created_at", "").replace("Z", "+00:00")),
+                        updated_at=datetime.fromisoformat(doc_data.get("updated_at", "").replace("Z", "+00:00")),
+                        published_at=datetime.fromisoformat(published_at.replace("Z", "+00:00")) if published_at else None,
+                        word_count=doc_data.get("word_count", 0),
+                        cover=doc_data.get("cover"),
+                        description=doc_data.get("description")
+                    )
+                    docs.append(doc)
+                except (ValueError, TypeError, KeyError) as e:
+                    # Skip invalid doc entries
+                    continue
+            
+            return docs
+            
+        except httpx.HTTPError as e:
+            raise YuqueAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            if isinstance(e, (YuqueAPIError, YuqueNotFoundError)):
+                raise
+            raise YuqueAPIError(f"Unexpected error: {str(e)}")
+    
+    @with_retry
+    async def get_doc_detail(self, id: int) -> YuqueDocInfo:
+        """
+        Get detailed document information including content.
+        
+        Args:
+            id: document ID
+            
+        Returns:
+            YuqueDocInfo object with full content
+            
+        Raises:
+            YuqueAPIError: If API call fails
+        """
+        try:
+            if not self._http_client:
+                raise YuqueAPIError("HTTP client not initialized")
+            
+            response = await self._http_client.get(
+                f"/repos/docs/{id}",
+                params={"raw": 1}  # Get raw markdown content
+            )
+            
+            if response.status_code != 200:
+                self._handle_api_error(response)
+            
+            data = response.json()
+            doc_data = data.get("data", {})
+            
+            published_at = doc_data.get("published_at")
+            doc = YuqueDocInfo(
+                id=doc_data.get("id"),
+                type=doc_data.get("type", ""),
+                slug=doc_data.get("slug", ""),
+                title=doc_data.get("title", ""),
+                book_id=doc_data.get("book_id"),
+                format=doc_data.get("format", "markdown"),
+                body=doc_data.get("body", ""),
+                body_draft=doc_data.get("body_draft"),
+                body_html=doc_data.get("body_html"),
+                public=doc_data.get("public", 0),
+                status=doc_data.get("status", 0),
+                created_at=datetime.fromisoformat(doc_data.get("created_at", "").replace("Z", "+00:00")),
+                updated_at=datetime.fromisoformat(doc_data.get("updated_at", "").replace("Z", "+00:00")),
+                published_at=datetime.fromisoformat(published_at.replace("Z", "+00:00")) if published_at else None,
+                word_count=doc_data.get("word_count", 0),
+                cover=doc_data.get("cover"),
+                description=doc_data.get("description")
+            )
+            
+            return doc
+            
+        except httpx.HTTPError as e:
+            raise YuqueAPIError(f"HTTP error: {str(e)}")
+        except Exception as e:
+            if isinstance(e, (YuqueAPIError, YuqueNotFoundError)):
+                raise
+            raise YuqueAPIError(f"Unexpected error: {str(e)}")
+    
+    async def download_document(
+        self,
+        doc: YuqueDocInfo,
+        save_dir: str
+    ) -> str:
+        """
+        Download document content to local file.
+        
+        Args:
+            doc: Document info (can be without body)
+            save_dir: Directory to save the file
+            
+        Returns:
+            Full path to the saved file
+            
+        Raises:
+            YuqueAPIError: If download fails
+        """
+        try:
+            # Get full document content if not already loaded
+            if not doc.body:
+                doc = await self.get_doc_detail(doc.id)
+            
+            # Sanitize filename
+            filename = re.sub(r'[\/:*?"<>|]', '_', doc.title)
+
+            # Determine file extension based on format
+            content = doc.body or ""
+            if doc.format == "markdown":
+                file_extension = "md"
+            elif doc.format == "lake":
+                file_extension = "md"  # Save lake format as markdown
+            elif doc.format == "html":
+                file_extension = "html"
+            elif doc.format == "lakesheet":
+                file_extension = "xlsx"
+
+                body_data = json.loads(doc.body)
+                sheet_data = body_data.get("sheet", "")
+                try:
+                    sheet_raw = zlib.decompress(bytes(sheet_data, 'latin-1'))
+                except Exception as e:
+                    print(f"Error decompressing sheet data: {e}")
+                    raise ValueError("Invalid or unsupported sheet data format.")
+                try:
+                    sheet_text = sheet_raw.decode("utf-8")  # 假设是 UTF-8 编码
+                except UnicodeDecodeError:
+                    sheet_text = sheet_raw.decode("gbk")  # 如果 UTF-8 解码失败，尝试 GBK
+
+                file_full_path = os.path.join(save_dir, f"{filename}.{file_extension}")
+                self.generate_excel_from_sheet(sheet_text, file_full_path)
+                return file_full_path
+            else:
+                file_extension = "txt"
+
+            file_full_path = os.path.join(save_dir, f"{filename}.{file_extension}")
+            # Remove existing file if it exists
+            if os.path.exists(file_full_path):
+                os.remove(file_full_path)
+            
+            # Write content to file
+            with open(file_full_path, "w", encoding="utf-8") as file:
+                file.write(content)
+            
+            return file_full_path
+            
+        except Exception as e:
+            if isinstance(e, YuqueAPIError):
+                raise
+            raise YuqueAPIError(f"Unexpected error during file download: {str(e)}")
+
+    def generate_excel_from_sheet(self, sheet_text: str, save_path: str):
+        """
+        将解析的 sheet_text 数据转换为 Excel 文件。
+
+        Args:
+            sheet_text (str): JSON 格式的 sheet 数据。
+            save_path (str): Excel 文件的保存路径。
+        """
+        try:
+            # 解析 JSON 数据
+            sheets = json.loads(sheet_text)
+
+            if not isinstance(sheets, list):
+                raise ValueError("sheet_text must be a JSON array of sheets.")
+
+            # 创建一个新的 Excel 工作簿
+            workbook = Workbook()
+
+            for sheet_index, sheet_data in enumerate(sheets):
+                sheet_name = sheet_data.get("name", f"Sheet{sheet_index + 1}")
+                row_data = sheet_data.get("data", {})
+                merge_cells = sheet_data.get("mergeCells", {})
+                rows_styles = sheet_data.get("rows", [])
+                cols_styles = sheet_data.get("columns", [])
+
+                # 创建 Sheet
+                if sheet_index == 0:
+                    worksheet = workbook.active
+                    worksheet.title = sheet_name
+                else:
+                    worksheet = workbook.create_sheet(title=sheet_name)
+
+                # 设置列宽
+                for col_index, col_style in enumerate(cols_styles):
+                    col_width = col_style.get("size", 82.125) / 7.0
+                    col_letter = get_column_letter(col_index + 1)  # Excel 列从1开始
+                    worksheet.column_dimensions[col_letter].width = col_width
+
+                # 设置行高
+                for row_index, row_style in enumerate(rows_styles):
+                    row_height = row_style.get("size", 24) / 1.5
+                    worksheet.row_dimensions[row_index + 1].height = row_height
+
+                # 写入单元格数据
+                for r_index, row in row_data.items():
+                    for c_index, cell in row.items():
+                        # 防御性检查：确保行号和列号都是有效的整数
+                        try:
+                            row_number = int(r_index) + 1
+                            col_number = int(c_index) + 1
+                        except ValueError:
+                            print(f"Invalid row or column index: r_index={r_index}, c_index={c_index}")
+                            continue
+
+                        if col_number < 1 or col_number > 16384:  # Excel 最大列数支持到 XFD，即 16384 列
+                            print(f"Invalid column index: c_index={c_index}")
+                            continue
+
+                        cell_obj = worksheet.cell(row=row_number, column=col_number)
+
+                        # 处理值和公式
+                        cell_value = cell.get("value", "")
+                        if isinstance(cell_value, dict):
+                            # 检查是否为公式
+                            if cell_value.get("class") == "formula" and "formula" in cell_value:
+                                cell_obj.value = f"={cell_value['formula']}"  # 写入公式
+                            else:
+                                cell_obj.value = cell_value.get("value", "")  # 写入值
+                        else:
+                            cell_obj.value = cell_value  # 写入简单值
+
+                        # 应用样式
+                        style = cell.get("style", {})
+                        self.apply_cell_style(cell_obj, style)
+
+                # 合并单元格
+                for key, merge_def in merge_cells.items():
+                    start_row = merge_def["row"] + 1
+                    start_col = merge_def["col"] + 1
+                    end_row = start_row + merge_def["rowCount"] - 1
+                    end_col = start_col + merge_def["colCount"] - 1
+                    worksheet.merge_cells(
+                        start_row=start_row, start_column=start_col, end_row=end_row, end_column=end_col
+                    )
+
+            # 保存 Excel 文件
+            workbook.save(save_path)
+            print(f"Excel file successfully saved to: {save_path}")
+
+        except Exception as e:
+            print(f"Error generating Excel file: {e}")
+
+
+    def apply_cell_style(self, cell, style):
+        """
+        应用单元格样式，包括字体、对齐、背景颜色等。
+
+        Args:
+            cell: openpyxl 的单元格对象。
+            style: 字典格式的样式信息。
+        """
+        # 定义允许的对齐值
+        allowed_horizontal_alignments = {"general", "left", "center", "centerContinuous", "right", "fill", "justify",
+                                         "distributed"}
+        allowed_vertical_alignments = {"top", "center", "justify", "distributed", "bottom"}
+
+        # 处理字体
+        font = Font(
+            size=style.get("fontSize", 11),
+            bold=style.get("fontWeight", False),
+            italic=style.get("fontStyle", "normal") == "italic",
+            underline="single" if style.get("underline", False) else None,
+            color=self.convert_color_to_hex(style.get("color", "#000000")),
+        )
+        cell.font = font
+
+        # 处理对齐方式
+        horizontal_alignment = style.get("hAlign", "left")
+        vertical_alignment = style.get("vAlign", "top")
+
+        # 如果对齐值无效，则使用默认值
+        if horizontal_alignment not in allowed_horizontal_alignments:
+            horizontal_alignment = "left"
+        if vertical_alignment not in allowed_vertical_alignments:
+            vertical_alignment = "top"
+
+        alignment = Alignment(
+            horizontal=horizontal_alignment,
+            vertical=vertical_alignment,
+            wrap_text=style.get("overflow") == "wrap",
+        )
+        cell.alignment = alignment
+
+        # 处理背景颜色
+        background_color = style.get("backColor", None)
+        if background_color:
+            hex_color = self.convert_color_to_hex(background_color)
+            if hex_color:
+                cell.fill = PatternFill(
+                    start_color=hex_color,
+                    end_color=hex_color,
+                    fill_type="solid"
+                )
+
+    def convert_color_to_hex(self, color):
+        """
+        将颜色从 `rgba(...)` 或 `rgb(...)` 转换为 aRGB 十六进制格式。
+
+        Args:
+            color (str): 原始颜色字符串，如 `rgba(255,255,0,1.00)` 或 `#FFFFFF`。
+
+        Returns:
+            str: 转换后的颜色字符串（符合 openpyxl 的格式），例如 `FFFF0000`。
+        """
+        try:
+            if not color:
+                return None
+
+            # 如果是 `#RRGGBB` 或 `#AARRGGBB` 格式，直接返回
+            if color.startswith("#"):
+                return color.lstrip("#").upper()
+
+            # 如果是 `rgb(...)` 格式，例如 `rgb(255,255,0)`
+            if color.startswith("rgb("):
+                rgb_values = color.strip("rgb()").split(",")
+                red, green, blue = [int(v) for v in rgb_values]
+                return f"FF{red:02X}{green:02X}{blue:02X}"
+
+            # 如果是 `rgba(...)` 格式，例如 `rgba(255,255,0,1.00)`
+            if color.startswith("rgba("):
+                rgba_values = color.strip("rgba()").split(",")
+                red, green, blue = [int(v) for v in rgba_values[:3]]
+                alpha = float(rgba_values[3])
+                alpha_hex = int(alpha * 255)  # 将透明度转换为 [00, FF]
+                return f"{alpha_hex:02X}{red:02X}{green:02X}{blue:02X}"
+
+            # 返回默认颜色
+            return None
+        except Exception as e:
+            print(f"Error parsing color '{color}': {e}")
+            return None
diff --git a/api/app/core/rag/integrations/yuque/exceptions.py b/api/app/core/rag/integrations/yuque/exceptions.py
new file mode 100644
index 00000000..e862323c
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/exceptions.py
@@ -0,0 +1,46 @@
+"""Exception classes for Yuque integration."""
+
+
+class YuqueError(Exception):
+    """Base exception for all Yuque-related errors."""
+    
+    def __init__(self, message: str, error_code: str = None, details: dict = None):
+        super().__init__(message)
+        self.message = message
+        self.error_code = error_code
+        self.details = details or {}
+
+
+class YuqueAuthError(YuqueError):
+    """Authentication error with Yuque API."""
+    pass
+
+
+class YuqueAPIError(YuqueError):
+    """General API error from Yuque."""
+    pass
+
+
+class YuqueNotFoundError(YuqueError):
+    """Resource not found error (404)."""
+    pass
+
+
+class YuquePermissionError(YuqueError):
+    """Permission denied error (403)."""
+    pass
+
+
+class YuqueRateLimitError(YuqueError):
+    """Rate limit exceeded error (429)."""
+    pass
+
+
+class YuqueNetworkError(YuqueError):
+    """Network-related error (timeout, connection failure)."""
+    pass
+
+
+class YuqueDataError(YuqueError):
+    """Data parsing or validation error."""
+    pass
diff --git a/api/app/core/rag/integrations/yuque/models.py b/api/app/core/rag/integrations/yuque/models.py
new file mode 100644
index 00000000..6230aa69
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/models.py
@@ -0,0 +1,42 @@
+"""Data models for Yuque integration."""
+
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Optional
+
+
+@dataclass
+class YuqueRepoInfo:
+    """Repository (知识库) information from Yuque."""
+    id: int # 知识库 ID
+    type: str # 类型 (Book:文档, Design:图集, Sheet:表格, Resource:资源)
+    name: str  # 名称
+    namespace: str  # 完整路径: user/repo format
+    slug: str # 路径
+    description: Optional[str] # 简介
+    public: int  # 公开性 (0:私密, 1:公开, 2:企业内公开)
+    items_count: int  # 文档数量
+    created_at: datetime # 创建时间
+    updated_at: datetime # 更新时间
+
+
+@dataclass
+class YuqueDocInfo:
+    """Document information from Yuque."""
+    id: int # 文档 ID
+    type: str  # 文档类型 (Doc:普通文档, Sheet:表格, Thread:话题, Board:图集, Table:数据表)
+    slug: str # 路径
+    title: str # 标题
+    book_id: int  # 归属知识库 ID
+    format: str  # 内容格式 (markdown:Markdown 格式, lake:语雀 Lake 格式, html:HTML 标准格式, lakesheet:语雀表格)
+    body: Optional[str]  # 正文原始内容
+    body_draft: Optional[str] # 正文草稿内容
+    body_html: Optional[str] # 正文 HTML 标准格式内容
+    public: int  # 公开性 (0:私密, 1:公开, 2:企业内公开)
+    status: int  # 状态 (0:草稿, 1:发布)
+    created_at: datetime # 创建时间
+    updated_at: datetime # 更新时间
+    published_at: Optional[datetime] # 发布时间
+    word_count: int # 内容字数
+    cover: Optional[str] # 封面
+    description: Optional[str] # 摘要
diff --git a/api/app/core/rag/integrations/yuque/retry.py b/api/app/core/rag/integrations/yuque/retry.py
new file mode 100644
index 00000000..a68d6b47
--- /dev/null
+++ b/api/app/core/rag/integrations/yuque/retry.py
@@ -0,0 +1,134 @@
+"""Retry strategy for Yuque API calls."""
+
+import asyncio
+import functools
+from typing import Callable, TypeVar
+import httpx
+
+from app.core.rag.integrations.yuque.exceptions import (
+    YuqueAuthError,
+    YuquePermissionError,
+    YuqueNotFoundError,
+    YuqueRateLimitError,
+    YuqueNetworkError,
+    YuqueDataError,
+    YuqueAPIError,
+)
+
+T = TypeVar('T')
+
+
+class RetryStrategy:
+    """Retry strategy for API calls."""
+    
+    # Retryable error types
+    RETRYABLE_ERRORS = (
+        YuqueNetworkError,
+        YuqueRateLimitError,
+        httpx.TimeoutException,
+        httpx.ConnectError,
+        httpx.ReadError,
+    )
+    
+    # Non-retryable error types
+    NON_RETRYABLE_ERRORS = (
+        YuqueAuthError,
+        YuquePermissionError,
+        YuqueNotFoundError,
+        YuqueDataError,
+    )
+    
+    # Retry configuration
+    MAX_RETRIES = 3
+    BACKOFF_DELAYS = [1, 2, 4]  # seconds
+    
+    @classmethod
+    def is_retryable(cls, error: Exception) -> bool:
+        """Check if an error is retryable."""
+        # Check for specific retryable errors
+        if isinstance(error, cls.RETRYABLE_ERRORS):
+            return True
+        
+        # Check for non-retryable errors
+        if isinstance(error, cls.NON_RETRYABLE_ERRORS):
+            return False
+        
+        # Check for HTTP status codes
+        if isinstance(error, httpx.HTTPStatusError):
+            status_code = error.response.status_code
+            # Retry on 429 (rate limit), 503 (service unavailable), 502 (bad gateway)
+            if status_code in [429, 502, 503]:
+                return True
+            # Don't retry on 4xx errors (except 429)
+            if 400 <= status_code < 500:
+                return False
+            # Retry on 5xx errors
+            if 500 <= status_code < 600:
+                return True
+
+        # Check for YuqueRateLimitError
+        if isinstance(error, YuqueRateLimitError):
+            return True
+        
+        return False
+    
+    @classmethod
+    async def execute_with_retry(
+        cls,
+        func: Callable[..., T],
+        *args,
+        **kwargs
+    ) -> T:
+        """
+        Execute a function with retry logic.
+        
+        Args:
+            func: Async function to execute
+            *args: Positional arguments for the function
+            **kwargs: Keyword arguments for the function
+            
+        Returns:
+            Function result
+            
+        Raises:
+            Exception: The last exception if all retries fail
+        """
+        last_exception = None
+        
+        for attempt in range(cls.MAX_RETRIES + 1):
+            try:
+                return await func(*args, **kwargs)
+            except Exception as e:
+                last_exception = e
+                
+                # Don't retry if not retryable
+                if not cls.is_retryable(e):
+                    raise
+                
+                # Don't retry if this was the last attempt
+                if attempt >= cls.MAX_RETRIES:
+                    raise
+                
+                # Wait before retrying
+                delay = cls.BACKOFF_DELAYS[attempt] if attempt < len(cls.BACKOFF_DELAYS) else cls.BACKOFF_DELAYS[-1]
+                await asyncio.sleep(delay)
+        
+        # Should not reach here, but raise last exception if we do
+        if last_exception:
+            raise last_exception
+
+
+def with_retry(func: Callable[..., T]) -> Callable[..., T]:
+    """
+    Decorator to add retry logic to async functions.
+    
+    Usage:
+        @with_retry
+        async def my_api_call():
+            ...
+    """
+    @functools.wraps(func)
+    async def wrapper(*args, **kwargs):
+        return await RetryStrategy.execute_with_retry(func, *args, **kwargs)
+    
+    return wrapper
diff --git a/api/app/core/rag/nlp/search.py b/api/app/core/rag/nlp/search.py
index 1f696c98..65fbd9cb 100644
--- a/api/app/core/rag/nlp/search.py
+++ b/api/app/core/rag/nlp/search.py
@@ -28,7 +28,9 @@ from app.core.rag.common.float_utils import get_float
 from app.core.rag.common.constants import PAGERANK_FLD, TAG_FLD
 from app.core.rag.llm.chat_model import Base
 from app.core.rag.llm.embedding_model import OpenAIEmbed
+import logging
 
+logger = logging.getLogger(__name__)
 
 def knowledge_retrieval(
         query: str,
@@ -62,7 +64,15 @@ def knowledge_retrieval(
         merge_strategy = config.get("merge_strategy", "weight")
         reranker_id = config.get("reranker_id")
         reranker_top_k = config.get("reranker_top_k", 1024)
-        use_graph = config.get("use_graph", "false").lower() == "true"
+        # use_graph = config.get("use_graph", "false").lower() == "true"
+
+        use_graph_value = config.get("use_graph", False)
+        if isinstance(use_graph_value, bool):
+            use_graph = use_graph_value
+        elif isinstance(use_graph_value, str):
+            use_graph = use_graph_value.lower() in ("true", "1", "yes")
+        else:
+            use_graph = False
 
         file_names_filter = []
         if user_ids:
@@ -159,13 +169,29 @@ def knowledge_retrieval(
 
         # Use the specified reranker for re-ranking
         if reranker_id:
-            return rerank(db=db, reranker_id=reranker_id, query=query, docs=all_results, top_k=reranker_top_k)
-        # use graph
+            try:
+                return rerank(db=db, reranker_id=reranker_id, query=query, docs=all_results, top_k=reranker_top_k)
+            except Exception as rerank_error:
+                # If reranker fails, log warning and continue with original results
+                logger.warning(
+                    "Reranker failed, falling back to original results",
+                    extra={
+                        "reranker_id": reranker_id,
+                        "query": query,
+                        "doc_count": len(all_results),
+                        "error": str(rerank_error),
+                    },
+                )
+
         if use_graph:
-            from app.core.rag.common.settings import kg_retriever
-            doc = kg_retriever.retrieval(question=query, workspace_ids=workspace_ids, kb_ids=kb_ids, emb_mdl=embedding_model, llm=chat_model)
-            if doc:
-                all_results.insert(0, doc)
+            try:
+                from app.core.rag.common.settings import kg_retriever
+                doc = kg_retriever.retrieval(question=query, workspace_ids=workspace_ids, kb_ids=kb_ids, emb_mdl=embedding_model, llm=chat_model)
+                if doc:
+                    all_results.insert(0, doc)
+            except Exception as graph_error:
+                print(f"Failed to retrieve from knowledge graph: {str(graph_error)}")
+        
         return all_results
 
     except Exception as e:
diff --git a/api/app/core/workflow/nodes/parameter_extractor/node.py b/api/app/core/workflow/nodes/parameter_extractor/node.py
index 475c54fe..31acaafc 100644
--- a/api/app/core/workflow/nodes/parameter_extractor/node.py
+++ b/api/app/core/workflow/nodes/parameter_extractor/node.py
@@ -25,6 +25,18 @@ class ParameterExtractorNode(BaseNode):
     def __init__(self, node_config: dict[str, Any], workflow_config: dict[str, Any]):
         super().__init__(node_config, workflow_config)
         self.typed_config: ParameterExtractorNodeConfig | None = None
+        self.response_metadata = {}
+
+    def _extract_token_usage(self, business_result: Any) -> dict[str, int] | None:
+        if self.response_metadata:
+            usage = self.response_metadata.get('token_usage')
+            if usage:
+                return {
+                    "prompt_tokens": usage.get('prompt_tokens', 0),
+                    "completion_tokens": usage.get('completion_tokens', 0),
+                    "total_tokens": usage.get('total_tokens', 0)
+                }
+        return None
 
     def _output_types(self) -> dict[str, VariableType]:
         outputs = {}
@@ -180,6 +192,7 @@ class ParameterExtractorNode(BaseNode):
             ])
 
         model_resp = await llm.ainvoke(messages)
+        self.response_metadata = model_resp.response_metadata
         result = json_repair.repair_json(model_resp.content, return_objects=True)
         logger.info(f"node: {self.node_id} get params:{result}")
 
diff --git a/api/app/core/workflow/nodes/question_classifier/node.py b/api/app/core/workflow/nodes/question_classifier/node.py
index d7496f12..38662b64 100644
--- a/api/app/core/workflow/nodes/question_classifier/node.py
+++ b/api/app/core/workflow/nodes/question_classifier/node.py
@@ -25,6 +25,18 @@ class QuestionClassifierNode(BaseNode):
         super().__init__(node_config, workflow_config)
         self.typed_config: QuestionClassifierNodeConfig | None = None
         self.category_to_case_map = {}
+        self.response_metadata = {}
+
+    def _extract_token_usage(self, business_result: Any) -> dict[str, int] | None:
+        if self.response_metadata:
+            usage = self.response_metadata.get('token_usage')
+            if usage:
+                return {
+                    "prompt_tokens": usage.get('prompt_tokens', 0),
+                    "completion_tokens": usage.get('completion_tokens', 0),
+                    "total_tokens": usage.get('total_tokens', 0)
+                }
+        return None
 
     def _output_types(self) -> dict[str, VariableType]:
         return {
@@ -120,6 +132,7 @@ class QuestionClassifierNode(BaseNode):
 
             response = await llm.ainvoke(messages)
             result = response.content.strip()
+            self.response_metadata = response.response_metadata
 
             if result in category_names:
                 category = result
diff --git a/api/app/models/file_model.py b/api/app/models/file_model.py
index 842e3dc8..44a7d613 100644
--- a/api/app/models/file_model.py
+++ b/api/app/models/file_model.py
@@ -14,4 +14,5 @@ class File(Base):
     file_name = Column(String, index=True, nullable=False, comment="file name or folder name,default folder name is /")
     file_ext = Column(String, index=True, nullable=False, comment="file extension:folder|pdf")
     file_size = Column(Integer, default=0, comment="file size(byte)")
+    file_url = Column(String, index=True, nullable=True, comment="file comes from a website url")
     created_at = Column(DateTime, default=datetime.datetime.now)
\ No newline at end of file
diff --git a/api/app/models/knowledge_model.py b/api/app/models/knowledge_model.py
index 8f0909d3..fbebe1b4 100644
--- a/api/app/models/knowledge_model.py
+++ b/api/app/models/knowledge_model.py
@@ -57,6 +57,17 @@ class Knowledge(Base):
     parser_id = Column(String, index=True, default="naive", comment="default parser ID")
     parser_config = Column(JSON, nullable=False,
                            default={
+                               "entry_url": "https://ai.redbearai.com",
+                               "max_pages": 20,
+                               "delay_seconds": 1.0,
+                               "timeout_seconds": 10,
+                               "user_agent": "KnowledgeBaseCrawler/1.0",
+                               "yuque_user_id": "User ID",
+                               "yuque_token": "Token",
+                               "feishu_app_id": "App ID",
+                               "feishu_app_secret": "App Secret",
+                               "feishu_folder_token": "Folder Token",
+                               "sync_cron": "30 7 * * 1-5",
                                "layout_recognize": "DeepDOC",
                                "chunk_token_num": 128,
                                "delimiter": "\n",
diff --git a/api/app/repositories/memory_config_repository.py b/api/app/repositories/memory_config_repository.py
index 22972669..68e7cb04 100644
--- a/api/app/repositories/memory_config_repository.py
+++ b/api/app/repositories/memory_config_repository.py
@@ -86,7 +86,8 @@ class MemoryConfigRepository:
         n.description AS description, 
         n.entity_type AS entity_type, 
         n.name AS name,
-        COALESCE(n.fact_summary, '') AS fact_summary,
+        // TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+        // COALESCE(n.fact_summary, '') AS fact_summary,
         n.end_user_id AS end_user_id,
         n.apply_id AS apply_id,
         n.user_id AS user_id,
@@ -279,6 +280,9 @@ class MemoryConfigRepository:
             if update.config_desc is not None:
                 db_config.config_desc = update.config_desc
                 has_update = True
+            if update.scene_id is not None:
+                db_config.scene_id = update.scene_id
+                has_update = True
 
             if not has_update:
                 raise ValueError("No fields to update")
@@ -650,28 +654,32 @@ class MemoryConfigRepository:
             raise
 
     @staticmethod
-    def get_all(db: Session, workspace_id: Optional[uuid.UUID] = None) -> List[MemoryConfig]:
-        """获取所有配置参数
+    def get_all(db: Session, workspace_id: Optional[uuid.UUID] = None) -> List[Tuple[MemoryConfig, Optional[str]]]:
+        """获取所有配置参数，包含关联的场景名称
 
         Args:
             db: 数据库会话
             workspace_id: 工作空间ID，用于过滤查询结果
 
         Returns:
-            List[MemoryConfig]: 配置列表
+            List[Tuple[MemoryConfig, Optional[str]]]: 配置列表，每项为 (配置对象, 场景名称)
         """
+        from app.models.ontology_scene import OntologyScene
+        
         db_logger.debug(f"查询所有配置: workspace_id={workspace_id}")
 
         try:
-            query = db.query(MemoryConfig)
+            query = db.query(MemoryConfig, OntologyScene.scene_name).outerjoin(
+                OntologyScene, MemoryConfig.scene_id == OntologyScene.scene_id
+            )
 
             if workspace_id:
                 query = query.filter(MemoryConfig.workspace_id == workspace_id)
 
-            configs = query.order_by(desc(MemoryConfig.updated_at)).all()
+            results = query.order_by(desc(MemoryConfig.updated_at)).all()
 
-            db_logger.debug(f"配置列表查询成功: 数量={len(configs)}")
-            return configs
+            db_logger.debug(f"配置列表查询成功: 数量={len(results)}")
+            return results
 
         except Exception as e:
             db_logger.error(f"查询所有配置失败: workspace_id={workspace_id} - {str(e)}")
diff --git a/api/app/repositories/neo4j/add_edges.py b/api/app/repositories/neo4j/add_edges.py
index 162bf411..2b32551c 100644
--- a/api/app/repositories/neo4j/add_edges.py
+++ b/api/app/repositories/neo4j/add_edges.py
@@ -79,7 +79,8 @@ async def add_memory_summary_statement_edges(summaries: List[MemorySummaryNode],
     try:
         edges: List[dict] = []
         for s in summaries:
-            for chunk_id in getattr(s, "chunk_ids", []) or []:
+            chunk_ids = getattr(s, "chunk_ids", []) or []
+            for chunk_id in chunk_ids:
                 edges.append({
                     "summary_id": s.id,
                     "chunk_id": chunk_id,
@@ -91,12 +92,11 @@ async def add_memory_summary_statement_edges(summaries: List[MemorySummaryNode],
 
         if not edges:
             return []
-
         result = await connector.execute_query(
             MEMORY_SUMMARY_STATEMENT_EDGE_SAVE,
             edges=edges
         )
         created = [record.get("uuid") for record in result] if result else []
         return created
-    except Exception:
+    except Exception as e:
         return None
diff --git a/api/app/repositories/neo4j/add_nodes.py b/api/app/repositories/neo4j/add_nodes.py
index fcf700b5..42c178b3 100644
--- a/api/app/repositories/neo4j/add_nodes.py
+++ b/api/app/repositories/neo4j/add_nodes.py
@@ -217,8 +217,10 @@ async def add_memory_summary_nodes(summaries: List[MemorySummaryNode], connector
             summaries=flattened
         )
         created_ids = [record.get("uuid") for record in result]
+        print(f"Successfully saved {len(created_ids)} MemorySummary nodes to Neo4j")
         return created_ids
-    except Exception:
+    except Exception as e:
+        print(f"Failed to save MemorySummary nodes to Neo4j: {e}")
         return None
 
 
diff --git a/api/app/repositories/neo4j/cypher_queries.py b/api/app/repositories/neo4j/cypher_queries.py
index cf1732fd..651c513f 100644
--- a/api/app/repositories/neo4j/cypher_queries.py
+++ b/api/app/repositories/neo4j/cypher_queries.py
@@ -101,10 +101,11 @@ SET e.name = CASE WHEN entity.name IS NOT NULL AND entity.name <> '' THEN entity
     e.name_embedding = CASE
         WHEN entity.name_embedding IS NOT NULL AND size(entity.name_embedding) > 0 THEN entity.name_embedding
         ELSE e.name_embedding END,
-    e.fact_summary = CASE
-        WHEN entity.fact_summary IS NOT NULL AND entity.fact_summary <> ''
-         AND (e.fact_summary IS NULL OR size(e.fact_summary) = 0 OR size(entity.fact_summary) > size(e.fact_summary))
-        THEN entity.fact_summary ELSE e.fact_summary END,
+    // TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+    // e.fact_summary = CASE
+    //     WHEN entity.fact_summary IS NOT NULL AND entity.fact_summary <> ''
+    //      AND (e.fact_summary IS NULL OR size(e.fact_summary) = 0 OR size(entity.fact_summary) > size(e.fact_summary))
+    //     THEN entity.fact_summary ELSE e.fact_summary END,
     e.connect_strength = CASE
         WHEN entity.connect_strength IS NULL OR entity.connect_strength = '' THEN e.connect_strength
         ELSE CASE
@@ -321,7 +322,8 @@ RETURN e.id AS id,
        e.description AS description,
        e.aliases AS aliases,
        e.name_embedding AS name_embedding,
-       COALESCE(e.fact_summary, '') AS fact_summary,
+       // TODO: fact_summary 功能暂时禁用，待后续开发完善后启用
+       // COALESCE(e.fact_summary, '') AS fact_summary,
        e.connect_strength AS connect_strength,
        collect(DISTINCT s.id) AS statement_ids,
        collect(DISTINCT c.id) AS chunk_ids,
@@ -1002,3 +1004,58 @@ RETURN DISTINCT
  x.statement as statement,x.created_at as created_at
 """
 
+Graph_Node_query = """
+            MATCH (n:MemorySummary)
+                WHERE n.end_user_id = $end_user_id
+                RETURN
+                  elementId(n) AS id,
+                  labels(n) AS labels,
+                  properties(n) AS properties,
+                  0 AS priority
+                LIMIT $limit
+                
+                UNION ALL
+
+                    MATCH (n:Dialogue)
+                    WHERE n.end_user_id =  $end_user_id
+                    RETURN
+                      elementId(n) AS id,
+                      labels(n) AS labels,
+                      properties(n) AS properties,
+                      1 AS priority
+                    LIMIT 1
+
+                UNION ALL
+
+                MATCH (n:Statement)
+                WHERE n.end_user_id =  $end_user_id
+                RETURN
+                  elementId(n) AS id,
+                  labels(n) AS labels,
+                  properties(n) AS properties,
+                  1 AS priority
+                LIMIT $limit
+
+                UNION ALL
+
+                MATCH (n:ExtractedEntity)
+                WHERE n.end_user_id =  $end_user_id
+                RETURN
+                  elementId(n) AS id,
+                  labels(n) AS labels,
+                  properties(n) AS properties,
+                  2 AS priority
+                LIMIT $limit
+
+                UNION ALL
+
+                MATCH (n:Chunk)
+                WHERE n.end_user_id =  $end_user_id
+                RETURN
+                  elementId(n) AS id,
+                  labels(n) AS labels,
+                  properties(n) AS properties,
+                  3 AS priority
+                LIMIT $limit
+
+            """
\ No newline at end of file
diff --git a/api/app/repositories/neo4j/graph_saver.py b/api/app/repositories/neo4j/graph_saver.py
index fc32ca9a..526d16ec 100644
--- a/api/app/repositories/neo4j/graph_saver.py
+++ b/api/app/repositories/neo4j/graph_saver.py
@@ -21,7 +21,8 @@ from app.core.memory.models.graph_models import (
     ExtractedEntityNode,
     EntityEntityEdge,
 )
-
+import logging
+logger = logging.getLogger(__name__)
 async def save_entities_and_relationships(
     entity_nodes: List[ExtractedEntityNode],
     entity_entity_edges: List[EntityEntityEdge],
@@ -41,8 +42,8 @@ async def save_entities_and_relationships(
             'statement': edge.statement,
             'valid_at': edge.valid_at.isoformat() if edge.valid_at else None,
             'invalid_at': edge.invalid_at.isoformat() if edge.invalid_at else None,
-            'created_at': edge.created_at.isoformat(),
-            'expired_at': edge.expired_at.isoformat(),
+            'created_at': edge.created_at.isoformat() if edge.created_at else None,
+            'expired_at': edge.expired_at.isoformat() if edge.expired_at else None,
             'run_id': edge.run_id,
             'end_user_id': edge.end_user_id,
         }
@@ -147,14 +148,14 @@ async def save_statement_entity_edges(
 
 
 async def save_dialog_and_statements_to_neo4j(
-    dialogue_nodes: List[DialogueNode],
-    chunk_nodes: List[ChunkNode],
-    statement_nodes: List[StatementNode],
-    entity_nodes: List[ExtractedEntityNode],
-    entity_edges: List[EntityEntityEdge],
-    statement_chunk_edges: List[StatementChunkEdge],
-    statement_entity_edges: List[StatementEntityEdge],
-    connector: Neo4jConnector
+        dialogue_nodes: List[DialogueNode],
+        chunk_nodes: List[ChunkNode],
+        statement_nodes: List[StatementNode],
+        entity_nodes: List[ExtractedEntityNode],
+        entity_edges: List[EntityEntityEdge],
+        statement_chunk_edges: List[StatementChunkEdge],
+        statement_entity_edges: List[StatementEntityEdge],
+        connector: Neo4jConnector
 ) -> bool:
     """Save dialogue nodes, chunk nodes, statement nodes, entities, and all relationships to Neo4j using graph models.
 
@@ -171,40 +172,126 @@ async def save_dialog_and_statements_to_neo4j(
     Returns:
         bool: True if successful, False otherwise
     """
-    try:
-        # Save all dialogue nodes in batch
-        dialogue_uuids = await add_dialogue_nodes(dialogue_nodes, connector)
-        if dialogue_uuids:
+
+    # 定义事务函数，将所有写操作放在一个事务中
+    async def _save_all_in_transaction(tx):
+        """在单个事务中执行所有保存操作，避免死锁"""
+        results = {}
+
+        # 1. Save all dialogue nodes in batch
+        if dialogue_nodes:
+            from app.repositories.neo4j.cypher_queries import DIALOGUE_NODE_SAVE
+            dialogue_data = [node.model_dump() for node in dialogue_nodes]
+            result = await tx.run(DIALOGUE_NODE_SAVE, dialogues=dialogue_data)
+            dialogue_uuids = [record["uuid"] async for record in result]
+            results['dialogues'] = dialogue_uuids
             print(f"Dialogues saved to Neo4j with UUIDs: {dialogue_uuids}")
-        else:
-            print("Failed to save dialogues to Neo4j")
-            return False
 
-        # Save all chunk nodes in batch
-        await save_chunk_nodes(chunk_nodes, connector)
+        # 2. Save all chunk nodes in batch
+        if chunk_nodes:
+            from app.repositories.neo4j.cypher_queries import CHUNK_NODE_SAVE
+            chunk_data = [node.model_dump() for node in chunk_nodes]
+            result = await tx.run(CHUNK_NODE_SAVE, chunks=chunk_data)
+            chunk_uuids = [record["uuid"] async for record in result]
+            results['chunks'] = chunk_uuids
+            logger.info(f"Successfully saved {len(chunk_uuids)} chunk nodes to Neo4j")
 
-        # Save all statement nodes in batch
+        # 3. Save all statement nodes in batch
         if statement_nodes:
-            statement_uuids = await add_statement_nodes(statement_nodes, connector)
-            if statement_uuids:
-                print(f"Successfully saved {len(statement_uuids)} statement nodes to Neo4j")
-            else:
-                print("Failed to save statement nodes to Neo4j")
-                return False
-        else:
-            print("No statement nodes to save")
+            from app.repositories.neo4j.cypher_queries import STATEMENT_NODE_SAVE
+            statement_data = [node.model_dump() for node in statement_nodes]
+            result = await tx.run(STATEMENT_NODE_SAVE, statements=statement_data)
+            statement_uuids = [record["uuid"] async for record in result]
+            results['statements'] = statement_uuids
+            logger.info(f"Successfully saved {len(statement_uuids)} statement nodes to Neo4j")
 
-        # Save entities and relationships
-        await save_entities_and_relationships(entity_nodes, entity_edges, connector)
-        print("Successfully saved entities and relationships to Neo4j")
+        # 4. Save entities
+        if entity_nodes:
+            from app.repositories.neo4j.cypher_queries import EXTRACTED_ENTITY_NODE_SAVE
+            entity_data = [entity.model_dump() for entity in entity_nodes]
+            result = await tx.run(EXTRACTED_ENTITY_NODE_SAVE, entities=entity_data)
+            entity_uuids = [record["uuid"] async for record in result]
+            results['entities'] = entity_uuids
+            logger.info(f"Successfully saved {len(entity_uuids)} entity nodes to Neo4j")
 
-        # Save new edges
-        await save_statement_chunk_edges(statement_chunk_edges, connector)
-        await save_statement_entity_edges(statement_entity_edges, connector)
+        # 5. Create entity relationships
+        if entity_edges:
+            from app.repositories.neo4j.cypher_queries import ENTITY_RELATIONSHIP_SAVE
+            relationship_data = []
+            for edge in entity_edges:
+                relationship_data.append({
+                    'source_id': edge.source,
+                    'target_id': edge.target,
+                    'predicate': edge.relation_type,
+                    'statement_id': edge.source_statement_id,
+                    'value': edge.relation_value,
+                    'statement': edge.statement,
+                    'valid_at': edge.valid_at.isoformat() if edge.valid_at else None,
+                    'invalid_at': edge.invalid_at.isoformat() if edge.invalid_at else None,
+                    'created_at': edge.created_at.isoformat() if edge.created_at else None,
+                    'expired_at': edge.expired_at.isoformat() if edge.expired_at else None,
+                    'run_id': edge.run_id,
+                    'end_user_id': edge.end_user_id,
+                })
+            result = await tx.run(ENTITY_RELATIONSHIP_SAVE, relationships=relationship_data)
+            rel_uuids = [record["uuid"] async for record in result]
+            results['entity_relationships'] = rel_uuids
+            logger.info(f"Successfully saved {len(rel_uuids)} entity relationships to Neo4j")
 
+        # 6. Save statement-chunk edges
+        if statement_chunk_edges:
+            from app.repositories.neo4j.cypher_queries import CHUNK_STATEMENT_EDGE_SAVE
+            sc_edge_data = []
+            for edge in statement_chunk_edges:
+                sc_edge_data.append({
+                    "id": edge.id,
+                    "source": edge.source,
+                    "target": edge.target,
+                    "created_at": edge.created_at.isoformat() if edge.created_at else None,
+                    "expired_at": edge.expired_at.isoformat() if edge.expired_at else None,
+                    "run_id": edge.run_id,
+                    "end_user_id": edge.end_user_id,
+                })
+            result = await tx.run(CHUNK_STATEMENT_EDGE_SAVE, chunk_statement_edges=sc_edge_data)
+            sc_uuids = [record["uuid"] async for record in result]
+            results['statement_chunk_edges'] = sc_uuids
+            logger.info(f"Successfully saved {len(sc_uuids)} statement-chunk edges to Neo4j")
+
+        # 7. Save statement-entity edges
+        if statement_entity_edges:
+            from app.repositories.neo4j.cypher_queries import STATEMENT_ENTITY_EDGE_SAVE
+            se_edge_data = []
+            for edge in statement_entity_edges:
+                se_edge_data.append({
+                    "source": edge.source,
+                    "target": edge.target,
+                    "created_at": edge.created_at.isoformat() if edge.created_at else None,
+                    "expired_at": edge.expired_at.isoformat() if edge.expired_at else None,
+                    "run_id": edge.run_id,
+                    "end_user_id": edge.end_user_id,
+                    "connect_strength": getattr(edge, "connect_strength", "strong"),
+                })
+            result = await tx.run(STATEMENT_ENTITY_EDGE_SAVE, relationships=se_edge_data)
+            se_uuids = [record["uuid"] async for record in result]
+            results['statement_entity_edges'] = se_uuids
+            logger.info(f"Successfully saved {len(se_uuids)} statement-entity edges to Neo4j")
+
+        return results
+
+    try:
+        # 使用显式写事务执行所有操作，避免死锁
+        results = await connector.execute_write_transaction(_save_all_in_transaction)
+        summary = {
+            key: len(value)
+            for key, value in results.items()
+            if isinstance(value, (list, tuple, set))
+        }
+        logger.info("Transaction completed. Summary: %s", summary)
+        logger.debug("Full transaction results: %r", results)
         return True
 
     except Exception as e:
+        logger.error(f"Neo4j integration error: {e}", exc_info=True)
         print(f"Neo4j integration error: {e}")
         print("Continuing without database storage...")
-        return False
\ No newline at end of file
+        return False
diff --git a/api/app/repositories/ontology_scene_repository.py b/api/app/repositories/ontology_scene_repository.py
index 322e111c..141b5d1c 100644
--- a/api/app/repositories/ontology_scene_repository.py
+++ b/api/app/repositories/ontology_scene_repository.py
@@ -392,3 +392,48 @@ class OntologySceneRepository:
                 exc_info=True
             )
             raise
+
+    def get_simple_list(self, workspace_id: UUID) -> List[dict]:
+        """获取场景简单列表（仅包含scene_id和scene_name，用于下拉选择）
+        
+        这是一个轻量级查询，不加载关联的classes，响应速度快。
+        
+        Args:
+            workspace_id: 工作空间ID
+            
+        Returns:
+            List[dict]: 场景简单列表，每项包含scene_id和scene_name
+            
+        Examples:
+            >>> repo = OntologySceneRepository(db)
+            >>> scenes = repo.get_simple_list(workspace_id)
+            >>> # [{"scene_id": "xxx", "scene_name": "场景1"}, ...]
+        """
+        try:
+            logger.debug(f"Getting simple scene list for workspace: {workspace_id}")
+            
+            # 只查询需要的字段，不加载关联数据
+            results = self.db.query(
+                OntologyScene.scene_id,
+                OntologyScene.scene_name
+            ).filter(
+                OntologyScene.workspace_id == workspace_id
+            ).order_by(
+                OntologyScene.updated_at.desc()
+            ).all()
+            
+            scenes = [
+                {"scene_id": str(r.scene_id), "scene_name": r.scene_name}
+                for r in results
+            ]
+            
+            logger.info(f"Found {len(scenes)} scenes (simple list) in workspace {workspace_id}")
+            
+            return scenes
+            
+        except Exception as e:
+            logger.error(
+                f"Failed to get simple scene list: {str(e)}",
+                exc_info=True
+            )
+            raise
diff --git a/api/app/schemas/file_schema.py b/api/app/schemas/file_schema.py
index 00f1a148..7245671a 100644
--- a/api/app/schemas/file_schema.py
+++ b/api/app/schemas/file_schema.py
@@ -10,6 +10,8 @@ class FileBase(BaseModel):
     file_name: str
     file_ext: str
     file_size: int
+    file_url: str | None = None
+    created_at: datetime.datetime | None = None
 
 
 class FileCreate(FileBase):
@@ -26,6 +28,7 @@ class FileUpdate(BaseModel):
     file_name: str | None = Field(None)
     file_ext: str | None = Field(None)
     file_size: str | None = Field(None)
+    file_url: str | None = Field(None)
 
 
 class File(FileBase):
diff --git a/api/app/schemas/memory_agent_schema.py b/api/app/schemas/memory_agent_schema.py
index b6f50dd7..1a5017eb 100644
--- a/api/app/schemas/memory_agent_schema.py
+++ b/api/app/schemas/memory_agent_schema.py
@@ -1,3 +1,4 @@
+from abc import ABC
 from typing import Optional
 
 from pydantic import BaseModel
@@ -14,4 +15,15 @@ class UserInput(BaseModel):
 class Write_UserInput(BaseModel):
     messages: list[dict]
     end_user_id: str
-    config_id: Optional[str] = None
\ No newline at end of file
+    config_id: Optional[str] = None
+
+class AgentMemory_Long_Term(ABC):
+    """长期记忆配置常量"""
+    STORAGE_NEO4J = "neo4j"
+    STORAGE_RAG = "rag"
+    STRATEGY_AGGREGATE = "aggregate"
+    STRATEGY_CHUNK = "chunk"
+    STRATEGY_TIME = "time"
+    DEFAULT_SCOPE = 6
+
+
diff --git a/api/app/schemas/memory_storage_schema.py b/api/app/schemas/memory_storage_schema.py
index 11cacda0..c3e7295b 100644
--- a/api/app/schemas/memory_storage_schema.py
+++ b/api/app/schemas/memory_storage_schema.py
@@ -248,8 +248,9 @@ class ConfigParamsDelete(BaseModel):  # 删除配置参数模型（请求体）
 
 class ConfigUpdate(BaseModel):  # 更新记忆萃取引擎配置参数时使用的模型
     config_id: Union[uuid.UUID, int, str] = None
-    config_name: str = Field("配置名称", description="配置名称（字符串）")
-    config_desc: str = Field("配置描述", description="配置描述（字符串）")
+    config_name: Optional[str] = Field(None, description="配置名称（字符串）")
+    config_desc: Optional[str] = Field(None, description="配置描述（字符串）")
+    scene_id: Optional[uuid.UUID] = Field(None, description="本体场景ID")
 
 
 class ConfigUpdateExtracted(BaseModel):  # 更新记忆萃取引擎配置参数时使用的模型
diff --git a/api/app/services/app_service.py b/api/app/services/app_service.py
index 42c4fe4f..66af0266 100644
--- a/api/app/services/app_service.py
+++ b/api/app/services/app_service.py
@@ -964,8 +964,15 @@ class AppService:
         ).order_by(
             AgentConfig.updated_at.desc()
         )
+
         config = self.db.scalars(stmt).first()
 
+        try:
+            config_memory=config.memory
+            if 'memory_content' in config_memory:
+                config.memory['memory_config_id'] = config.memory.pop('memory_content')
+        except:
+            logger.debug("记忆配置不存在")
         if config:
             return config
 
diff --git a/api/app/services/draft_run_service.py b/api/app/services/draft_run_service.py
index 31662769..3b301743 100644
--- a/api/app/services/draft_run_service.py
+++ b/api/app/services/draft_run_service.py
@@ -114,6 +114,8 @@ def create_long_term_memory_tool(memory_config: Dict[str, Any], end_user_id: str
                 result = task_service.get_task_memory_read_result(task.id)
                 status = result.get("status")
                 logger.info(f"读取任务状态：{status}")
+                if memory_content:
+                    memory_content = memory_content['answer']
 
             finally:
                 db.close()
@@ -127,11 +129,6 @@ def create_long_term_memory_tool(memory_config: Dict[str, Any], end_user_id: str
                     "content_length": len(str(memory_content))
                 }
             )
-
-            # 检查是否有有效内容
-            if not memory_content or str(memory_content).strip() == "" or "answer" in str(memory_content) and str(memory_content).count("''") > 0:
-                return "未找到相关的历史记忆。请直接回答用户的问题，不要再次调用此工具。"
-            
             return f"检索到以下历史记忆：\n\n{memory_content}"
         except Exception as e:
             logger.error("长期记忆检索失败", extra={"error": str(e), "error_type": type(e).__name__})
diff --git a/api/app/services/memory_storage_service.py b/api/app/services/memory_storage_service.py
index b7079e62..c9327ccf 100644
--- a/api/app/services/memory_storage_service.py
+++ b/api/app/services/memory_storage_service.py
@@ -183,11 +183,11 @@ class DataConfigService: # 数据配置服务类（PostgreSQL）
 
     # --- Read All ---
     def get_all(self, workspace_id = None) -> List[Dict[str, Any]]: # 获取所有配置参数
-        configs = MemoryConfigRepository.get_all(self.db, workspace_id)
+        results = MemoryConfigRepository.get_all(self.db, workspace_id)
 
         # 将 ORM 对象转换为字典列表
         data_list = []
-        for config in configs:
+        for config, scene_name in results:
             # 安全地转换 user_id 为 int
             config_id_old = None
             if config.config_id_old:
@@ -209,7 +209,8 @@ class DataConfigService: # 数据配置服务类（PostgreSQL）
                 "end_user_id": config.end_user_id,
                 "config_id_old": config_id_old,
                 "apply_id": config.apply_id,
-                "scene_id": config.scene_id,
+                "scene_id": str(config.scene_id) if config.scene_id else None,
+                "scene_name": scene_name,  # 新增：场景名称
                 "llm_id": config.llm_id,
                 "embedding_id": config.embedding_id,
                 "rerank_id": config.rerank_id,
@@ -637,10 +638,9 @@ async def analytics_recent_activity_stats() -> Dict[str, Any]:
                 if m < 1:
                     latest_relative = "刚刚"
                 elif m < 60:
-                    latest_relative = f"{m}分钟前"
+                    latest_relative = "一会前"
                 else:
-                    h = int(m // 60)
-                    latest_relative = f"{h}小时前" if h < 24 else f"{int(h // 24)}天前"
+                    latest_relative = "较早前"
     except Exception:
         pass
 
diff --git a/api/app/services/user_memory_service.py b/api/app/services/user_memory_service.py
index 97ab64cb..80413c12 100644
--- a/api/app/services/user_memory_service.py
+++ b/api/app/services/user_memory_service.py
@@ -15,6 +15,7 @@ from app.core.memory.utils.llm.llm_utils import MemoryClientFactory
 from app.db import get_db_context
 from app.repositories.conversation_repository import ConversationRepository
 from app.repositories.end_user_repository import EndUserRepository
+from app.repositories.neo4j.cypher_queries import Graph_Node_query
 from app.repositories.neo4j.neo4j_connector import Neo4jConnector
 from app.schemas.memory_episodic_schema import EmotionSubject, EmotionType, type_mapping
 from app.services.implicit_memory_service import ImplicitMemoryService
@@ -1525,7 +1526,6 @@ async def analytics_graph_data(
         user_uuid = uuid.UUID(end_user_id)
         repo = EndUserRepository(db)
         end_user = repo.get_by_id(user_uuid)
-        
         if not end_user:
             logger.warning(f"未找到 end_user_id 为 {end_user_id} 的用户")
             return {
@@ -1579,21 +1579,11 @@ async def analytics_graph_data(
             }
         else:
             # 查询所有节点
-            node_query = """
-            MATCH (n)
-            WHERE n.end_user_id = $end_user_id
-            RETURN 
-                elementId(n) as id,
-                labels(n)[0] as label,
-                properties(n) as properties
-            LIMIT $limit
-            """
+            node_query=Graph_Node_query
             node_params = {
                 "end_user_id": end_user_id,
                 "limit": limit
             }
-
-
         # 执行节点查询
         node_results = await _neo4j_connector.execute_query(node_query, **node_params)
         
@@ -1604,9 +1594,9 @@ async def analytics_graph_data(
         
         for record in node_results:
             node_id = record["id"]
-            node_label = record["label"]
+            node_labels = record.get("labels", [])
+            node_label = node_labels[0] if node_labels else "Unknown"
             node_props = record["properties"]
-            
             # 根据节点类型提取需要的属性字段
             filtered_props = await _extract_node_properties(node_label, node_props,node_id)
             
diff --git a/api/app/tasks.py b/api/app/tasks.py
index 2111f2fd..8fb82b96 100644
--- a/api/app/tasks.py
+++ b/api/app/tasks.py
@@ -7,6 +7,8 @@ import uuid
 from uuid import UUID
 from datetime import datetime, timezone
 from math import ceil
+from pathlib import Path
+import shutil
 from typing import Any, Dict, List, Optional
 
 import redis
@@ -16,8 +18,13 @@ import trio
 # Import a unified Celery instance
 from app.celery_app import celery_app
 from app.core.config import settings
+from app.core.rag.crawler.web_crawler import WebCrawler
 from app.core.rag.graphrag.general.index import init_graphrag, run_graphrag_for_kb
 from app.core.rag.graphrag.utils import get_llm_cache, set_llm_cache
+from app.core.rag.integrations.feishu.client import FeishuAPIClient
+from app.core.rag.integrations.feishu.models import FileInfo
+from app.core.rag.integrations.yuque.client import YuqueAPIClient
+from app.core.rag.integrations.yuque.models import YuqueDocInfo
 from app.core.rag.llm.chat_model import Base
 from app.core.rag.llm.cv_model import QWenCV
 from app.core.rag.llm.embedding_model import OpenAIEmbed
@@ -29,7 +36,9 @@ from app.core.rag.vdb.elasticsearch.elasticsearch_vector import (
 )
 from app.db import get_db, get_db_context
 from app.models.document_model import Document
+from app.models.file_model import File
 from app.models.knowledge_model import Knowledge
+from app.schemas import file_schema, document_schema
 from app.services.memory_agent_service import MemoryAgentService
 
 
@@ -382,6 +391,480 @@ def build_graphrag_for_kb(kb_id: uuid.UUID):
         db.close()
 
 
+@celery_app.task(name="app.core.rag.tasks.sync_knowledge_for_kb")
+def sync_knowledge_for_kb(kb_id: uuid.UUID):
+    """
+    sync knowledge document and Document parsing, vectorization, and storage
+    """
+    db = next(get_db())  # Manually call the generator
+    db_knowledge = None
+    try:
+        db_knowledge = db.query(Knowledge).filter(Knowledge.id == kb_id).first()
+        # 1. get vector_service
+        vector_service = ElasticSearchVectorFactory().init_vector(knowledge=db_knowledge)
+
+        # 2. sync data
+        match db_knowledge.type:
+            case "Web": # Crawl webpages in batches through a web crawler
+                entry_url = db_knowledge.parser_config.get("entry_url", "")
+                max_pages = db_knowledge.parser_config.get("max_pages", 20)
+                delay_seconds = db_knowledge.parser_config.get("delay_seconds", 1.0)
+                timeout_seconds = db_knowledge.parser_config.get("timeout_seconds", 10)
+                user_agent = db_knowledge.parser_config.get("user_agent", "KnowledgeBaseCrawler/1.0")
+                # Create crawler
+                crawler = WebCrawler(
+                    entry_url=entry_url,
+                    max_pages=max_pages,
+                    delay_seconds=delay_seconds,
+                    timeout_seconds=timeout_seconds,
+                    user_agent=user_agent
+                )
+                try:
+                    # 初始化存储已爬取 URLs 的集合
+                    file_urls = set()
+                    # crawl entry_url by yield
+                    for crawled_document in crawler.crawl():
+                        file_urls.add(crawled_document.url)
+                        db_file = db.query(File).filter(File.kb_id == db_knowledge.id,
+                                                        File.file_url == crawled_document.url).first()
+                        if db_file:
+                            if db_file.file_size == crawled_document.content_length: # same
+                                continue
+                            else: # --update
+                                if crawled_document.content_length:
+                                    # 1. update file
+                                    db_file.file_name = f"{crawled_document.title}.txt"
+                                    db_file.file_ext=".txt"
+                                    db_file.file_size=crawled_document.content_length
+                                    db.commit()
+                                    db.refresh(db_file)
+                                    # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                    save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id), str(db_knowledge.parent_id))
+                                    Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+                                    save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                    # update file
+                                    if os.path.exists(save_path):
+                                        os.remove(save_path)  # Delete a single file
+                                    content_bytes = crawled_document.content.encode('utf-8')
+                                    with open(save_path, "wb") as f:
+                                        f.write(content_bytes)
+                                    # 2. update a document
+                                    db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                            Document.file_id == db_file.id).first()
+                                    if db_document:
+                                        db_document.file_name = db_file.file_name
+                                        db_document.file_ext = db_file.file_ext
+                                        db_document.file_size = db_file.file_size
+                                        db_document.updated_at = datetime.now()
+                                        db.commit()
+                                        db.refresh(db_document)
+                                        # 3. Document parsing, vectorization, and storage
+                                        parse_document(file_path=save_path, document_id=db_document.id)
+                        else: # --add
+                            if crawled_document.content_length:
+                                # 1. upload file
+                                upload_file = file_schema.FileCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    parent_id=db_knowledge.id,
+                                    file_name=f"{crawled_document.title}.txt",
+                                    file_ext=".txt",
+                                    file_size=crawled_document.content_length,
+                                    file_url=crawled_document.url,
+                                )
+                                db_file = File(**upload_file.model_dump())
+                                db.add(db_file)
+                                db.commit()
+                                # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id), str(db_knowledge.id))
+                                Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+                                save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                # Save file
+                                content_bytes = crawled_document.content.encode('utf-8')
+                                with open(save_path, "wb") as f:
+                                    f.write(content_bytes)
+                                # 2. Create a document
+                                create_document_data = document_schema.DocumentCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    file_id=db_file.id,
+                                    file_name=db_file.file_name,
+                                    file_ext=db_file.file_ext,
+                                    file_size=db_file.file_size,
+                                    file_meta={},
+                                    parser_id="naive",
+                                    parser_config={
+                                        "layout_recognize": "DeepDOC",
+                                        "chunk_token_num": 128,
+                                        "delimiter": "\n",
+                                        "auto_keywords": 0,
+                                        "auto_questions": 0,
+                                        "html4excel": "false"
+                                    }
+                                )
+                                db_document = Document(**create_document_data.model_dump())
+                                db.add(db_document)
+                                db.commit()
+                                # 3. Document parsing, vectorization, and storage
+                                parse_document(file_path=save_path, document_id=db_document.id)
+                    db_files = db.query(File).filter(File.kb_id == db_knowledge.id, File.file_url.notin_(file_urls)).all()
+                    if db_files: # --delete
+                        for db_file in db_files:
+                            db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                    Document.file_id == db_file.id).first()
+                            if db_document:
+                                # 1. Delete vector index
+                                vector_service.delete_by_metadata_field(key="document_id", value=str(db_document.id))
+                                # 2. Delete document
+                                db.delete(db_document)
+                            # 3. Delete file
+                            file_path = Path(
+                                settings.FILE_PATH,
+                                str(db_file.kb_id),
+                                str(db_file.parent_id),
+                                f"{db_file.id}{db_file.file_ext}"
+                            )
+                            if file_path.exists():
+                                file_path.unlink()  # Delete a single file
+                            db.delete(db_file)
+                        # commit transaction
+                        db.commit()
+
+                except Exception as e:
+                    print(f"\n\nError during crawl: {e}")
+            case "Third-party":  # Integration of knowledge bases from three parties
+                yuque_user_id = db_knowledge.parser_config.get("yuque_user_id", "")
+                feishu_app_id = db_knowledge.parser_config.get("feishu_app_id", "")
+                if yuque_user_id: # Yuque Knowledge Base
+                    yuque_token = db_knowledge.parser_config.get("yuque_token", "")
+                    # Create yuqueAPIClient
+                    api_client = YuqueAPIClient(
+                        user_id=yuque_user_id,
+                        token=yuque_token
+                    )
+                    try:
+                        # 初始化存储获取语雀 URLs 的集合
+                        file_urls = set()
+
+                        # Get all files from all repos
+                        async def async_get_files(api_client: YuqueAPIClient):
+                            async with api_client as client:
+                                print("\n=== Fetching repositories ===")
+                                repos = await client.get_user_repos()
+                                print(f"Found {len(repos)} repositories:")
+                                all_files = []
+                                for repo in repos:
+                                    # Get documents from repository
+                                    print(f"\n=== Fetching documents from '{repo.name}' ===")
+                                    docs = await client.get_repo_docs(repo.id)
+                                    all_files.extend(docs)
+                                return all_files
+
+                        files = asyncio.run(async_get_files(api_client))
+                        for doc in files:
+                            file_urls.add(doc.slug)
+                            db_file = db.query(File).filter(File.kb_id == db_knowledge.id,
+                                                            File.file_url == doc.slug).first()
+                            if db_file:
+                                if db_file.created_at == doc.updated_at:  # same
+                                    continue
+                                else:  # --update
+                                    # 1. update file
+                                    # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                    save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id), str(db_knowledge.parent_id))
+                                    Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+
+                                    # download document from Feishu FileInfo
+                                    async def async_download_document(api_client: YuqueAPIClient, doc: YuqueDocInfo, save_dir: str):
+                                        async with api_client as client:
+                                            file_path = await client.download_document(doc, save_dir)
+                                            return file_path
+
+                                    file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+
+                                    save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                    # update file
+                                    if os.path.exists(save_path):
+                                        os.remove(save_path)  # Delete a single file
+                                    shutil.copyfile(file_path, save_path)
+                                    # update db_file
+                                    file_name = os.path.basename(file_path)
+                                    _, file_extension = os.path.splitext(file_name)
+                                    file_size = os.path.getsize(file_path)
+                                    db_file.file_name = file_name
+                                    db_file.file_ext = file_extension.lower()
+                                    db_file.file_size = file_size
+                                    db_file.created_at = doc.updated_at
+                                    db.commit()
+                                    db.refresh(db_file)
+                                    # 2. update a document
+                                    db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                            Document.file_id == db_file.id).first()
+                                    if db_document:
+                                        db_document.file_name = db_file.file_name
+                                        db_document.file_ext = db_file.file_ext
+                                        db_document.file_size = db_file.file_size
+                                        db_document.created_at = db_file.created_at
+                                        db_document.updated_at = datetime.now()
+                                        db.commit()
+                                        db.refresh(db_document)
+                                        # 3. Document parsing, vectorization, and storage
+                                        parse_document(file_path=save_path, document_id=db_document.id)
+                            else:  # --add
+                                # 1. update file
+                                # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id), str(db_knowledge.parent_id))
+                                Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+
+                                # download document from Feishu FileInfo
+                                async def async_download_document(api_client: YuqueAPIClient, doc: YuqueDocInfo, save_dir: str):
+                                    async with api_client as client:
+                                        file_path = await client.download_document(doc, save_dir)
+                                        return file_path
+
+                                file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+                                # add db_file
+                                file_name = os.path.basename(file_path)
+                                _, file_extension = os.path.splitext(file_name)
+                                file_size = os.path.getsize(file_path)
+                                upload_file = file_schema.FileCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    parent_id=db_knowledge.id,
+                                    file_name=file_name,
+                                    file_ext=file_extension.lower(),
+                                    file_size=file_size,
+                                    file_url=doc.slug,
+                                    created_at=doc.updated_at
+                                )
+                                db_file = File(**upload_file.model_dump())
+                                db.add(db_file)
+                                db.commit()
+                                # Save file
+                                save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                # update file
+                                if os.path.exists(save_path):
+                                    os.remove(save_path)  # Delete a single file
+                                shutil.copyfile(file_path, save_path)
+                                # 2. Create a document
+                                create_document_data = document_schema.DocumentCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    file_id=db_file.id,
+                                    file_name=db_file.file_name,
+                                    file_ext=db_file.file_ext,
+                                    file_size=db_file.file_size,
+                                    file_meta={},
+                                    parser_id="naive",
+                                    parser_config={
+                                        "layout_recognize": "DeepDOC",
+                                        "chunk_token_num": 128,
+                                        "delimiter": "\n",
+                                        "auto_keywords": 0,
+                                        "auto_questions": 0,
+                                        "html4excel": "false"
+                                    }
+                                )
+                                db_document = Document(**create_document_data.model_dump())
+                                db.add(db_document)
+                                db.commit()
+                                # 3. Document parsing, vectorization, and storage
+                                parse_document(file_path=save_path, document_id=db_document.id)
+                        db_files = db.query(File).filter(File.kb_id == db_knowledge.id,
+                                                         File.file_url.notin_(file_urls)).all()
+                        if db_files:  # --delete
+                            for db_file in db_files:
+                                db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                        Document.file_id == db_file.id).first()
+                                if db_document:
+                                    # 1. Delete vector index
+                                    vector_service.delete_by_metadata_field(key="document_id",
+                                                                            value=str(db_document.id))
+                                    # 2. Delete document
+                                    db.delete(db_document)
+                                # 3. Delete file
+                                file_path = Path(
+                                    settings.FILE_PATH,
+                                    str(db_file.kb_id),
+                                    str(db_file.parent_id),
+                                    f"{db_file.id}{db_file.file_ext}"
+                                )
+                                if file_path.exists():
+                                    file_path.unlink()  # Delete a single file
+                                db.delete(db_file)
+                            # commit transaction
+                            db.commit()
+
+                    except Exception as e:
+                        print(f"\n\nError during fetch feishu: {e}")
+                if feishu_app_id: # Feishu Knowledge Base
+                    feishu_app_secret = db_knowledge.parser_config.get("feishu_app_secret", "")
+                    feishu_folder_token = db_knowledge.parser_config.get("feishu_folder_token", "")
+                    # Create feishuAPIClient
+                    api_client = FeishuAPIClient(
+                        app_id=feishu_app_id,
+                        app_secret=feishu_app_secret
+                    )
+                    try:
+                        # 初始化存储获取飞书 URLs 的集合
+                        file_urls = set()
+                        # Get all files from folder
+                        async def async_get_files(api_client: FeishuAPIClient, feishu_folder_token: str):
+                            async with api_client as client:
+                                files = await client.list_all_folder_files(feishu_folder_token, recursive=True)
+                                return files
+                        files = asyncio.run(async_get_files(api_client, feishu_folder_token))
+                        # Filter out folders, only sync documents
+                        documents = [f for f in files if f.type in ["doc", "docx", "sheet", "bitable", "file"]]
+                        for doc in documents:
+                            file_urls.add(doc.url)
+                            db_file = db.query(File).filter(File.kb_id == db_knowledge.id,
+                                                            File.file_url == doc.url).first()
+                            if db_file:
+                                if db_file.created_at == doc.modified_time:  # same
+                                    continue
+                                else:  # --update
+                                    # 1. update file
+                                    # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                    save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id),
+                                                            str(db_knowledge.parent_id))
+                                    Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+                                    # download document from Feishu FileInfo
+                                    async def async_download_document(api_client: FeishuAPIClient, doc: FileInfo, save_dir: str):
+                                        async with api_client as client:
+                                            file_path = await client.download_document(document=doc, save_dir=save_dir)
+                                            return file_path
+                                    file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+
+                                    save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                    # update file
+                                    if os.path.exists(save_path):
+                                        os.remove(save_path)  # Delete a single file
+                                    shutil.copyfile(file_path, save_path)
+                                    # update db_file
+                                    file_name = os.path.basename(file_path)
+                                    _, file_extension = os.path.splitext(file_name)
+                                    file_size = os.path.getsize(file_path)
+                                    db_file.file_name = file_name
+                                    db_file.file_ext = file_extension.lower()
+                                    db_file.file_size = file_size
+                                    db_file.created_at = doc.modified_time
+                                    db.commit()
+                                    db.refresh(db_file)
+                                    # 2. update a document
+                                    db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                            Document.file_id == db_file.id).first()
+                                    if db_document:
+                                        db_document.file_name = db_file.file_name
+                                        db_document.file_ext = db_file.file_ext
+                                        db_document.file_size = db_file.file_size
+                                        db_document.created_at = db_file.created_at
+                                        db_document.updated_at = datetime.now()
+                                        db.commit()
+                                        db.refresh(db_document)
+                                        # 3. Document parsing, vectorization, and storage
+                                        parse_document(file_path=save_path, document_id=db_document.id)
+                            else:  # --add
+                                # 1. update file
+                                # Construct a save path：/files/{kb_id}/{parent_id}/{file.id}{file_extension}
+                                save_dir = os.path.join(settings.FILE_PATH, str(db_knowledge.id),
+                                                        str(db_knowledge.parent_id))
+                                Path(save_dir).mkdir(parents=True, exist_ok=True)  # Ensure that the directory exists
+                                # download document from Feishu FileInfo
+                                async def async_download_document(api_client: FeishuAPIClient, doc: FileInfo, save_dir: str):
+                                    async with api_client as client:
+                                        file_path = await client.download_document(document=doc, save_dir=save_dir)
+                                        return file_path
+                                file_path = asyncio.run(async_download_document(api_client, doc, save_dir))
+                                # add db_file
+                                file_name = os.path.basename(file_path)
+                                _, file_extension = os.path.splitext(file_name)
+                                file_size = os.path.getsize(file_path)
+                                upload_file = file_schema.FileCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    parent_id=db_knowledge.id,
+                                    file_name=file_name,
+                                    file_ext=file_extension.lower(),
+                                    file_size=file_size,
+                                    file_url=doc.url,
+                                    created_at = doc.modified_time
+                                )
+                                db_file = File(**upload_file.model_dump())
+                                db.add(db_file)
+                                db.commit()
+                                # Save file
+                                save_path = os.path.join(save_dir, f"{db_file.id}{db_file.file_ext}")
+                                # update file
+                                if os.path.exists(save_path):
+                                    os.remove(save_path)  # Delete a single file
+                                shutil.copyfile(file_path, save_path)
+                                # 2. Create a document
+                                create_document_data = document_schema.DocumentCreate(
+                                    kb_id=db_knowledge.id,
+                                    created_by=db_knowledge.created_by,
+                                    file_id=db_file.id,
+                                    file_name=db_file.file_name,
+                                    file_ext=db_file.file_ext,
+                                    file_size=db_file.file_size,
+                                    file_meta={},
+                                    parser_id="naive",
+                                    parser_config={
+                                        "layout_recognize": "DeepDOC",
+                                        "chunk_token_num": 128,
+                                        "delimiter": "\n",
+                                        "auto_keywords": 0,
+                                        "auto_questions": 0,
+                                        "html4excel": "false"
+                                    }
+                                )
+                                db_document = Document(**create_document_data.model_dump())
+                                db.add(db_document)
+                                db.commit()
+                                # 3. Document parsing, vectorization, and storage
+                                parse_document(file_path=save_path, document_id=db_document.id)
+                        db_files = db.query(File).filter(File.kb_id == db_knowledge.id,
+                                                         File.file_url.notin_(file_urls)).all()
+                        if db_files:  # --delete
+                            for db_file in db_files:
+                                db_document = db.query(Document).filter(Document.kb_id == db_knowledge.id,
+                                                                        Document.file_id == db_file.id).first()
+                                if db_document:
+                                    # 1. Delete vector index
+                                    vector_service.delete_by_metadata_field(key="document_id",
+                                                                            value=str(db_document.id))
+                                    # 2. Delete document
+                                    db.delete(db_document)
+                                # 3. Delete file
+                                file_path = Path(
+                                    settings.FILE_PATH,
+                                    str(db_file.kb_id),
+                                    str(db_file.parent_id),
+                                    f"{db_file.id}{db_file.file_ext}"
+                                )
+                                if file_path.exists():
+                                    file_path.unlink()  # Delete a single file
+                                db.delete(db_file)
+                            # commit transaction
+                            db.commit()
+
+                    except Exception as e:
+                        print(f"\n\nError during fetch feishu: {e}")
+            case _:  # General
+                print(f"General: No synchronization needed\n")
+
+
+        result = f"sync knowledge '{db_knowledge.name}' processed successfully."
+        return result
+    except Exception as e:
+        if 'db_knowledge' in locals():
+            print(f"Failed to sync knowledge:{str(e)}\n")
+        result = f"sync knowledge '{db_knowledge.name}' failed."
+        return result
+    finally:
+        db.close()
+
+
 @celery_app.task(name="app.core.memory.agent.read_message", bind=True)
 def read_message_task(self, end_user_id: str, message: str, history: List[Dict[str, Any]], search_switch: str, config_id: str, storage_type:str, user_rag_memory_id:str) -> Dict[str, Any]:
 
diff --git a/api/app/utils/config_utils.py b/api/app/utils/config_utils.py
index cc67afd2..55cfe8a3 100644
--- a/api/app/utils/config_utils.py
+++ b/api/app/utils/config_utils.py
@@ -5,42 +5,68 @@ Shared utilities for configuration handling to avoid circular imports.
 """
 from uuid import UUID
 from sqlalchemy.orm import Session
+import uuid as uuid_module
 
 
-def resolve_config_id(config_id: UUID | int|str, db: Session) -> UUID:
+def resolve_config_id(config_id: UUID | int | str, db: Session) -> UUID:
     """
-    解析 config_id，如果是整数则通过 config_id_old 查找对应的 UUID
+    解析 config_id，支持 UUID、UUID字符串、整数等多种格式
 
     Args:
-        config_id: 配置ID（UUID 或整数）
+        config_id: 配置ID（UUID、UUID字符串 或 整数）
         db: 数据库会话
 
     Returns:
         UUID: 解析后的配置ID
 
     Raises:
-        ValueError: 当找不到对应的配置时
+        ValueError: 当找不到对应的配置时或格式无效时
     """
-
     from app.models.memory_config_model import MemoryConfig
-    if  isinstance(config_id, UUID):
+    
+    # 1. 如果已经是 UUID 类型，直接返回
+    if isinstance(config_id, UUID):
         return config_id
-    if isinstance(config_id, str) and len(config_id)<=6:
-        memory_config = db.query(MemoryConfig).filter(
-            MemoryConfig.config_id_old == int(config_id)
-        ).first()
-        print(memory_config)
-        if not memory_config:
-            raise ValueError(f"STR 未找到 config_id_old={config_id} 对应的配置")
-        return memory_config.config_id
+    
+    # 2. 如果是字符串类型
+    if isinstance(config_id, str):
+        config_id_stripped = config_id.strip()
+        
+        # 2.1 尝试解析为 UUID（标准 UUID 字符串长度为 36）
+        try:
+            return uuid_module.UUID(config_id_stripped)
+        except ValueError:
+            pass
+        
+        # 2.2 尝试解析为整数（用于查询 config_id_old）
+        try:
+            old_id = int(config_id_stripped)
+            if old_id > 0:
+                memory_config = db.query(MemoryConfig).filter(
+                    MemoryConfig.config_id_old == old_id
+                ).first()
+                if not memory_config:
+                    raise ValueError(f"未找到 config_id_old={old_id} 对应的配置")
+                return memory_config.config_id
+        except ValueError:
+            pass
+        
+        # 2.3 无法解析的字符串格式
+        raise ValueError(f"无效的 config_id 格式: '{config_id}'（必须是 UUID 或正整数）")
+    
+    # 3. 如果是整数类型，通过 config_id_old 查找
     if isinstance(config_id, int):
+        if config_id <= 0:
+            raise ValueError(f"config_id 必须是正整数: {config_id}")
+        
         memory_config = db.query(MemoryConfig).filter(
             MemoryConfig.config_id_old == config_id
         ).first()
 
         if not memory_config:
-            raise ValueError(f"INT 未找到 config_id_old={config_id} 对应的配置")
+            raise ValueError(f"未找到 config_id_old={config_id} 对应的配置")
 
         return memory_config.config_id
 
-    return config_id
+    # 4. 不支持的类型
+    raise ValueError(f"不支持的 config_id 类型: {type(config_id).__name__}")
diff --git a/api/migrations/versions/ef0787b85c35_202602061233.py b/api/migrations/versions/ef0787b85c35_202602061233.py
new file mode 100644
index 00000000..1d08ec71
--- /dev/null
+++ b/api/migrations/versions/ef0787b85c35_202602061233.py
@@ -0,0 +1,32 @@
+"""202602061233
+
+Revision ID: ef0787b85c35
+Revises: 9b28b66cf8e8
+Create Date: 2026-02-06 12:33:26.114673
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = 'ef0787b85c35'
+down_revision: Union[str, None] = '9b28b66cf8e8'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('files', sa.Column('file_url', sa.String(), nullable=True, comment='file comes from a website url'))
+    op.create_index(op.f('ix_files_file_url'), 'files', ['file_url'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_files_file_url'), table_name='files')
+    op.drop_column('files', 'file_url')
+    # ### end Alembic commands ###
diff --git a/api/pyproject.toml b/api/pyproject.toml
index 6d23a3b9..66b1a295 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -141,6 +141,8 @@ dependencies = [
     "flower>=2.0.1",
     "aiofiles>=23.0.0",
     "owlready2>=0.46",
+    "lxml>=4.9.0",
+    "httpx>=0.28.0",
 ]
 
 [tool.pytest.ini_options]
diff --git a/api/requirements.txt b/api/requirements.txt
index 6cdae2d1..144c0db2 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -134,3 +134,5 @@ xlrd==2.0.2
 oss2>=2.18.0
 boto3>=1.28.0
 aiofiles>=23.0.0
+lxml>=4.9.0
+httpx>=0.28.0
diff --git a/api/uv.lock b/api/uv.lock
index 587fc5b0..a9bde1ed 100644
--- a/api/uv.lock
+++ b/api/uv.lock
@@ -3224,6 +3224,7 @@ dependencies = [
     { name = "hanziconv" },
     { name = "html5lib" },
     { name = "httptools" },
+    { name = "httpx" },
     { name = "huggingface-hub" },
     { name = "idna" },
     { name = "jieba" },
@@ -3237,6 +3238,7 @@ dependencies = [
     { name = "langchain-ollama" },
     { name = "langchain-openai" },
     { name = "langfuse" },
+    { name = "lxml" },
     { name = "mako" },
     { name = "mammoth" },
     { name = "markdown" },
@@ -3361,6 +3363,7 @@ requires-dist = [
     { name = "hanziconv", specifier = "==0.3.2" },
     { name = "html5lib", specifier = "==1.1" },
     { name = "httptools", specifier = "==0.7.1" },
+    { name = "httpx", specifier = ">=0.28.0" },
     { name = "huggingface-hub", specifier = "==0.25.2" },
     { name = "idna", specifier = "==3.11" },
     { name = "jieba", specifier = ">=0.42.1" },
@@ -3375,6 +3378,7 @@ requires-dist = [
     { name = "langchain-ollama" },
     { name = "langchain-openai", specifier = ">=1.0.2" },
     { name = "langfuse", specifier = ">=3.10.0" },
+    { name = "lxml", specifier = ">=4.9.0" },
     { name = "mako", specifier = "==1.3.10" },
     { name = "mammoth", specifier = "==1.11.0" },
     { name = "markdown", specifier = "==3.8" },
diff --git a/web/package.json b/web/package.json
index e28e8b56..89800fcf 100644
--- a/web/package.json
+++ b/web/package.json
@@ -13,6 +13,14 @@
     "@antv/layout": "^1.2.14-beta.8",
     "@antv/x6": "^3.0.1",
     "@antv/x6-react-shape": "^3.0.1",
+    "@codemirror/lang-cpp": "^6.0.3",
+    "@codemirror/lang-java": "^6.0.2",
+    "@codemirror/lang-javascript": "^6.2.4",
+    "@codemirror/lang-python": "^6.2.1",
+    "@codemirror/lang-rust": "^6.0.2",
+    "@codemirror/state": "^6.5.4",
+    "@codemirror/theme-one-dark": "^6.1.3",
+    "@codemirror/view": "^6.39.12",
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/modifiers": "^9.0.0",
     "@dnd-kit/sortable": "^10.0.0",
@@ -25,6 +33,7 @@
     "antd": "^5.27.4",
     "axios": "^1.12.2",
     "clsx": "^2.1.1",
+    "codemirror": "^6.0.2",
     "copy-to-clipboard": "^3.3.3",
     "crypto-js": "^4.2.0",
     "dayjs": "^1.11.18",
@@ -55,6 +64,7 @@
     "@tailwindcss/postcss": "^4.1.14",
     "@tailwindcss/typography": "^0.5.19",
     "@tailwindcss/vite": "^4.1.14",
+    "@types/codemirror": "^5.60.17",
     "@types/crypto-js": "^4.2.2",
     "@types/js-yaml": "^4.0.9",
     "@types/node": "^24.6.0",
diff --git a/web/src/api/memory.ts b/web/src/api/memory.ts
index 6f4e7f0e..987ef358 100644
--- a/web/src/api/memory.ts
+++ b/web/src/api/memory.ts
@@ -256,7 +256,7 @@ export const updateMemoryExtractionConfig = (values: ExtractionConfigForm) => {
   return request.post('/memory-storage/update_config_extracted', values)
 }
 // Memory Extraction Engine - Pilot run
-export const pilotRunMemoryExtractionConfig = (values: { config_id: number | string; dialogue_text: string; }, onMessage?: (data: SSEMessage[]) => void) => {
+export const pilotRunMemoryExtractionConfig = (values: { config_id: number | string; dialogue_text: string; custom_text?: string; }, onMessage?: (data: SSEMessage[]) => void) => {
   return handleSSE('/memory-storage/pilot_run', values, onMessage)
 }
 // Emotion Engine - Get configuration
diff --git a/web/src/api/ontology.ts b/web/src/api/ontology.ts
index becf899f..90a6857f 100644
--- a/web/src/api/ontology.ts
+++ b/web/src/api/ontology.ts
@@ -8,6 +8,7 @@ import { request } from '@/utils/request'
 import type { Query, OntologyModalData, OntologyClassModalData, OntologyClassExtractModalData, OntologyExportModalData } from '@/views/Ontology/types'
 
 // Scene list
+export const getOntologyScenesSimpleUrl = '/memory/ontology/scenes/simple'
 export const getOntologyScenesUrl = '/memory/ontology/scenes'
 export const getOntologyScenesList = (data: Query) => {
   return request.get(getOntologyScenesUrl, data)
diff --git a/web/src/components/CodeMirrorEditor/index.tsx b/web/src/components/CodeMirrorEditor/index.tsx
new file mode 100644
index 00000000..e100b75b
--- /dev/null
+++ b/web/src/components/CodeMirrorEditor/index.tsx
@@ -0,0 +1,150 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-04 17:20:52 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-04 17:20:52 
+ */
+import { useEffect, useRef, useMemo } from 'react';
+import { EditorView, basicSetup } from 'codemirror';
+import { EditorState } from '@codemirror/state';
+import { python } from '@codemirror/lang-python';
+import { javascript } from '@codemirror/lang-javascript';
+import { java } from '@codemirror/lang-java';
+import { cpp } from '@codemirror/lang-cpp';
+import { rust } from '@codemirror/lang-rust';
+import { oneDark } from '@codemirror/theme-one-dark';
+
+/**
+ * Props for the CodeMirrorEditor component
+ * @property {string} value - The initial code content to display in the editor
+ * @property {string} language - Programming language for syntax highlighting (python, python3, javascript, typescript, java, cpp, c, rust)
+ * @property {function} onChange - Callback function triggered when editor content changes, receives the new code value
+ * @property {string} theme - Editor theme, either 'light' or 'dark'
+ * @property {boolean} readOnly - Whether the editor is read-only
+ * @property {string} height - Custom height for the editor
+ * @property {string} size - Predefined size preset: 'default' (120px min-height, 14px font) or 'small' (60px min-height, 12px font)
+ */
+interface CodeMirrorEditorProps {
+  value?: string;
+  language?: 'python' | 'python3' | 'javascript' | 'typescript' | 'java' | 'cpp' | 'c' | 'rust';
+  onChange?: (value: string) => void;
+  theme?: 'light' | 'dark';
+  readOnly?: boolean;
+  height?: string;
+  size?: 'default' | 'small';
+}
+
+/**
+ * Map of language identifiers to their corresponding CodeMirror language extensions
+ * Supports multiple programming languages with syntax highlighting
+ */
+const languageExtensions: Record<string, any> = {
+  python: python(),
+  python3: python(),
+  javascript: javascript(),
+  typescript: javascript({ typescript: true }),
+  java: java(),
+  cpp: cpp(),
+  c: cpp(),
+  rust: rust(),
+};
+
+/**
+ * CodeMirrorEditor - A React wrapper component for CodeMirror 6 editor
+ * Provides a code editor with syntax highlighting, theme support, and customizable sizing
+ * Used in workflow code execution nodes for editing Python and JavaScript code
+ */
+const CodeMirrorEditor = ({
+  value = '',
+  language = 'javascript',
+  onChange,
+  theme = 'light',
+  readOnly = false,
+  size,
+}: CodeMirrorEditorProps) => {
+  // Reference to the DOM element that will contain the editor
+  const editorRef = useRef<HTMLDivElement>(null);
+  // Reference to the CodeMirror EditorView instance
+  const viewRef = useRef<EditorView | null>(null);
+
+  /**
+   * Initialize CodeMirror editor when component mounts or when language/theme/readOnly changes
+   * Sets up extensions for syntax highlighting, change listeners, and theme
+   */
+  useEffect(() => {
+    if (!editorRef.current) return;
+
+    // Get the appropriate language extension, fallback to JavaScript if not found
+    const langExtension = languageExtensions[language] || languageExtensions.javascript;
+    
+    // Configure editor extensions
+    const extensions = [
+      basicSetup, // Basic editor features (line numbers, bracket matching, etc.)
+      langExtension, // Language-specific syntax highlighting
+      // Listen for document changes and trigger onChange callback
+      EditorView.updateListener.of((update) => {
+        if (update.docChanged && onChange) {
+          onChange(update.state.doc.toString());
+        }
+      }),
+      EditorState.readOnly.of(readOnly), // Set read-only mode
+    ];
+
+    // Apply dark theme if specified
+    if (theme === 'dark') {
+      extensions.push(oneDark);
+    }
+
+    // Create editor state with initial value and extensions
+    const state = EditorState.create({
+      doc: value,
+      extensions,
+    });
+
+    // Create and mount the editor view
+    viewRef.current = new EditorView({
+      state,
+      parent: editorRef.current,
+    });
+
+    // Cleanup: destroy editor instance when component unmounts or dependencies change
+    return () => {
+      viewRef.current?.destroy();
+    };
+  }, [language, theme, readOnly]);
+
+  /**
+   * Update editor content when the value prop changes externally
+   * Only updates if the new value differs from current editor content
+   */
+  useEffect(() => {
+    if (viewRef.current && value !== viewRef.current.state.doc.toString()) {
+      viewRef.current.dispatch({
+        changes: {
+          from: 0,
+          to: viewRef.current.state.doc.length,
+          insert: value,
+        },
+      });
+    }
+  }, [value]);
+
+  // Calculate minimum height based on size prop: small (60px) or default (120px)
+  const minHeight = useMemo(() => {
+    return `${size === 'small' ? 60 : 120}px`
+  }, [size])
+  
+  // Calculate font size based on size prop: small (12px) or default (14px)
+  const fontSize = useMemo(() => {
+    return `${size === 'small' ? 12 : 14}px`
+  }, [size])
+  
+  // Calculate line height based on size prop: small (16px) or default (20px)
+  const lineHeight = useMemo(() => {
+    return `${size === 'small' ? 16 : 20}px`
+  }, [size])
+
+  return <div ref={editorRef} style={{ minHeight, fontSize, lineHeight }} />;
+};
+
+export default CodeMirrorEditor;
diff --git a/web/src/components/Markdown/index.tsx b/web/src/components/Markdown/index.tsx
index a2fac5ba..9d3c482b 100644
--- a/web/src/components/Markdown/index.tsx
+++ b/web/src/components/Markdown/index.tsx
@@ -81,7 +81,7 @@ const components = {
   audio: ({ src, ...props }: any) => <AudioBlock node={{ children: [{ properties: { src: src || '' } }] }} {...props} />,
   a: ({ href, children, ...props }: any) => <Link href={href || '#'} {...props}>{children}</Link>,
   button: ({ children }: any) => <RbButton node={{ children }}>{[children]}</RbButton>,
-  table: ({ children, ...props }: any) => <table className="rb:border rb:border-[#D9D9D9] rb:mb-2" {...props}>{children}</table>,
+  table: ({ children, ...props }: any) => <div className="rb:overflow-x-auto rb:max-w-full"><table className="rb:border rb:border-[#D9D9D9] rb:mb-2" {...props}>{children}</table></div>,
   tr: ({ children, ...props }: any) => <tr className="rb:border rb:border-[#D9D9D9]" {...props}>{children}</tr>,
   th: ({ children, ...props }: any) => <th className="rb:border rb:border-[#D9D9D9] rb:px-2 rb:py-1 rb:text-left rb:font-bold" {...props}>{children}</th>,
   td: ({ children, ...props }: any) => <td className="rb:border rb:border-[#D9D9D9] rb:px-2 rb:py-1 rb:text-left" {...props}>{children}</td>,
diff --git a/web/src/i18n/en.ts b/web/src/i18n/en.ts
index fe0fbc37..9d706ff6 100644
--- a/web/src/i18n/en.ts
+++ b/web/src/i18n/en.ts
@@ -1543,7 +1543,8 @@ Memory Bear: After the rebellion, regional warlordism intensified for several re
       text_preprocessing_desc: 'Text split into {{count}} semantic fragments',
       knowledge_extraction_desc: 'Knowledge extraction completed, identified {{entities}} entities, {{statements}} statements, {{temporal_ranges_count}} temporal extractions, {{triplets}} triplets',
       creating_nodes_edges_desc: 'Entity relationship creation completed, {{num}} relationships in total',
-      deduplication_desc: 'Deduplication and disambiguation completed, {{count}} unique entities in total'
+      deduplication_desc: 'Deduplication and disambiguation completed, {{count}} unique entities in total',
+      custom_text: 'Debug Text',
     },
     memoryConversation: {
       searchPlaceholder: 'Enter user ID...',
diff --git a/web/src/i18n/zh.ts b/web/src/i18n/zh.ts
index 7fc8b652..a7ef34ac 100644
--- a/web/src/i18n/zh.ts
+++ b/web/src/i18n/zh.ts
@@ -1617,7 +1617,8 @@ export const zh = {
       text_preprocessing_desc: '文本切分为{{count}}个语义片段',
       knowledge_extraction_desc: '知识抽取完成，共识别{{entities}}个实体,{{statements}}个句子, {{temporal_ranges_count}}个时间提取, {{triplets}}个三元组',
       creating_nodes_edges_desc: '实体关系创建完成，共{{num}}条关系',
-      deduplication_desc: '去重消歧完成，最终{{count}}个唯一实体'
+      deduplication_desc: '去重消歧完成，最终{{count}}个唯一实体',
+      custom_text: '调试文本',
     },
     memoryConversation: {
       chatEmpty:'有什么我可以帮您的吗？',
diff --git a/web/src/styles/index.css b/web/src/styles/index.css
index bbbe9cd9..d937396a 100644
--- a/web/src/styles/index.css
+++ b/web/src/styles/index.css
@@ -180,4 +180,9 @@ body {
 .x6-node foreignObject > body {
   min-height: 100%;
   max-height: 100%;
+}
+
+.ͼ2 .cm-gutters {
+  background-color: #FFFFFF;
+  border: none;
 }
\ No newline at end of file
diff --git a/web/src/views/ApplicationConfig/Agent.tsx b/web/src/views/ApplicationConfig/Agent.tsx
index 0bfd4ba7..6feb1548 100644
--- a/web/src/views/ApplicationConfig/Agent.tsx
+++ b/web/src/views/ApplicationConfig/Agent.tsx
@@ -2,7 +2,7 @@
  * @Author: ZhaoYing 
  * @Date: 2026-02-03 16:29:21 
  * @Last Modified by: ZhaoYing
- * @Last Modified time: 2026-02-04 20:16:45
+ * @Last Modified time: 2026-02-06 11:20:14
  */
 import { type FC, type ReactNode, useEffect, useRef, useState, forwardRef, useImperativeHandle } from 'react';
 import clsx from 'clsx'
@@ -38,8 +38,8 @@ import CustomSelect from '@/components/CustomSelect'
 import aiPrompt from '@/assets/images/application/aiPrompt.png'
 import AiPromptModal from './components/AiPromptModal'
 import ToolList from './components/ToolList/ToolList'
-import ChatVariableConfigModal from './components/ChatVariableConfigModal';
 import SkillList from './components/Skill'
+import ChatVariableConfigModal from './components/ChatVariableConfigModal';
 import type { Skill } from '@/views/Skills/types'
 
 /**
@@ -169,7 +169,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
       const { skills } = response
       let allSkills = Array.isArray(skills?.skill_ids) ? skills?.skill_ids.map(vo => ({ id: vo })) : []
       let allTools = Array.isArray(response.tools) ? response.tools : []
-      const memoryContent = response.memory?.memory_content
+      const memoryContent = response.memory?.memory_config_id
       const parsedMemoryContent = memoryContent === null || memoryContent === '' 
         ? undefined 
         : !isNaN(Number(memoryContent)) ? Number(memoryContent) : memoryContent
@@ -178,7 +178,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
         tools: allTools,
         memory: {
           ...response.memory,
-          memory_content: parsedMemoryContent
+          memory_config_id: parsedMemoryContent
         },
         skills: {
           ...skills,
@@ -262,7 +262,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
     if (!isSave || !data) return Promise.resolve()
     const { memory, knowledge_retrieval, tools, skills, ...rest } = values
     const { knowledge_bases = [], ...knowledgeRest } = knowledge_retrieval || {}
-    const { memory_content } = memory || {}
+    const { memory_config_id } = memory || {}
     // Get other necessary properties of memory from original data
     const originalMemory = data.memory || ({} as MemoryConfig)
     
@@ -272,7 +272,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
       memory: {
         ...originalMemory,
         ...memory,
-        memory_content: memory_content ? String(memory_content) : '',
+        memory_config_id: memory_config_id ? String(memory_config_id) : '',
       },
       knowledge_retrieval: knowledge_bases.length > 0 ? {
         ...data.knowledge_retrieval,
@@ -444,7 +444,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
                   <SelectWrapper 
                     title="selectMemoryContent" 
                     desc="selectMemoryContentDesc" 
-                    name={['memory', 'memory_content']}
+                    name={['memory', 'memory_config_id']}
                     url={memoryConfigListUrl}
                   />
                 </Space>
diff --git a/web/src/views/ApplicationConfig/components/Knowledge/Knowledge.tsx b/web/src/views/ApplicationConfig/components/Knowledge/Knowledge.tsx
index 297e9faa..7fdf1ab2 100644
--- a/web/src/views/ApplicationConfig/components/Knowledge/Knowledge.tsx
+++ b/web/src/views/ApplicationConfig/components/Knowledge/Knowledge.tsx
@@ -140,7 +140,7 @@ const Knowledge: FC<{value?: KnowledgeConfig; onChange?: (config: KnowledgeConfi
       title={t('application.knowledgeBaseAssociation')}
       extra={
         <Space>
-          <Button style={{ padding: '0 8px', height: '24px' }} onClick={handleKnowledgeConfig}>{t('workflow.config.knowledge-retrieval.recallConfig')}</Button>
+          <Button style={{ padding: '0 8px', height: '24px' }} onClick={handleKnowledgeConfig}>{t('application.globalConfig')}</Button>
           <Button style={{ padding: '0 8px', height: '24px' }} onClick={handleAddKnowledge}>+</Button>
         </Space>
       }
diff --git a/web/src/views/ApplicationConfig/components/Skill/index.tsx b/web/src/views/ApplicationConfig/components/Skill/index.tsx
index 1a8dcc6d..d42edd3d 100644
--- a/web/src/views/ApplicationConfig/components/Skill/index.tsx
+++ b/web/src/views/ApplicationConfig/components/Skill/index.tsx
@@ -39,7 +39,7 @@ const processObj = [
  * @param value - Current skill configuration values
  * @param onChange - Callback function when configuration changes
  */
-const Skill: FC<{value?: SkillConfigForm; onChange?: (config: SkillConfigForm) => void}> = () => {
+const SkillList: FC<{value?: SkillConfigForm; onChange?: (config: SkillConfigForm) => void}> = () => {
   const { t } = useTranslation()
   const form = Form.useFormInstance()
   const skillConfig = Form.useWatch(['skills'], form)
@@ -148,4 +148,4 @@ const Skill: FC<{value?: SkillConfigForm; onChange?: (config: SkillConfigForm) =
     </Card>
   )
 }
-export default Skill
\ No newline at end of file
+export default SkillList
\ No newline at end of file
diff --git a/web/src/views/ApplicationConfig/types.ts b/web/src/views/ApplicationConfig/types.ts
index fc799b91..2d09f739 100644
--- a/web/src/views/ApplicationConfig/types.ts
+++ b/web/src/views/ApplicationConfig/types.ts
@@ -43,7 +43,7 @@ export interface MemoryConfig {
   /** Whether memory is enabled */
   enabled: boolean;
   /** Memory content */
-  memory_content?: string;
+  memory_config_id?: string;
   /** Maximum history length */
   max_history?: number | string;
 }
diff --git a/web/src/views/MemoryExtractionEngine/components/Result.tsx b/web/src/views/MemoryExtractionEngine/components/Result.tsx
index 6fdeb2af..cb89661a 100644
--- a/web/src/views/MemoryExtractionEngine/components/Result.tsx
+++ b/web/src/views/MemoryExtractionEngine/components/Result.tsx
@@ -13,7 +13,7 @@
 import { type FC, useState } from 'react'
 import { useParams } from 'react-router-dom'
 import { useTranslation } from 'react-i18next'
-import { Space, Button, Progress } from 'antd'
+import { Space, Button, Progress, Form, Input } from 'antd'
 import { ExclamationCircleFilled, CheckCircleFilled, ClockCircleOutlined, LoadingOutlined } from '@ant-design/icons'
 import clsx from 'clsx'
 import type { AnyObject } from 'antd/es/_util/type';
@@ -79,6 +79,8 @@ const Result: FC<ResultProps> = ({ loading, handleSave }) => {
   const [creatingNodesEdges, setCreatingNodesEdges] = useState<ModuleItem>(initObj as ModuleItem)
   const [deduplication, setDeduplication] = useState<ModuleItem>(initObj as ModuleItem)
 
+  const [runForm] = Form.useForm()
+
   /** Run pilot test */
   const handleRun = () => {
     if(!id) return
@@ -187,6 +189,7 @@ const Result: FC<ResultProps> = ({ loading, handleSave }) => {
     pilotRunMemoryExtractionConfig({
       config_id: id,
       dialogue_text: t('memoryExtractionEngine.exampleText'),
+      custom_text: runForm.getFieldValue('custom_text')
     }, handleStreamMessage)
     .finally(() => {
       setRunLoading(false)
@@ -222,6 +225,14 @@ const Result: FC<ResultProps> = ({ loading, handleSave }) => {
       headerClassName="rb:pb-0! rb:pt-4!"
       bodyClassName="rb:min-h-[calc(100vh-388px)] rb:p-[16px_20px]!"
     >
+      <Form form={runForm} layout="vertical">
+        <Form.Item
+          name="custom_text"
+          label={t('memoryExtractionEngine.custom_text')}
+        >
+          <Input.TextArea placeholder={t('common.pleaseEnter')} />
+        </Form.Item>
+      </Form>
       <div className="rb:min-h-[calc(100vh-480px)] rb:overflow-y-auto">
         {runLoading
           ? <>
diff --git a/web/src/views/MemoryManagement/components/MemoryForm.tsx b/web/src/views/MemoryManagement/components/MemoryForm.tsx
index 22bff65a..93246ca9 100644
--- a/web/src/views/MemoryManagement/components/MemoryForm.tsx
+++ b/web/src/views/MemoryManagement/components/MemoryForm.tsx
@@ -16,7 +16,7 @@ import { useTranslation } from 'react-i18next';
 import type { MemoryFormData, Memory, MemoryFormRef } from '../types';
 import RbModal from '@/components/RbModal'
 import { createMemoryConfig, updateMemoryConfig } from '@/api/memory'
-import { getOntologyScenesUrl } from '@/api/ontology'
+import { getOntologyScenesSimpleUrl } from '@/api/ontology'
 import CustomSelect from '@/components/CustomSelect';
 
 const FormItem = Form.Item;
@@ -129,8 +129,7 @@ const MemoryForm = forwardRef<MemoryFormRef, MemoryFormProps>(({
         >
           <CustomSelect
             placeholder={t('common.pleaseSelect')}
-            url={getOntologyScenesUrl}
-            params={{ pagesize: 100, page: 1 }}
+            url={getOntologyScenesSimpleUrl}
             hasAll={false}
             valueKey='scene_id'
             labelKey="scene_name"
diff --git a/web/src/views/MemoryManagement/index.tsx b/web/src/views/MemoryManagement/index.tsx
index dbda547f..ac2b4fa5 100644
--- a/web/src/views/MemoryManagement/index.tsx
+++ b/web/src/views/MemoryManagement/index.tsx
@@ -112,7 +112,7 @@ const MemoryManagement: React.FC = () => {
                 title={item.config_name}
               >
                 <Tooltip title={item.config_desc}>
-                  <div className="rb:text-[#5B6167] rb:text-[12px] rb:leading-4.25 rb:font-regular rb:-mt-1 rb:wrap-break-word rb:line-clamp-1">{item.config_desc}</div>
+                  <div className="rb:text-[#5B6167] rb:text-[12px] rb:leading-4.25 rb:font-regular rb:-mt-1 rb:wrap-break-word rb:line-clamp-1 rb:h-[17px]">{item.config_desc}</div>
                 </Tooltip>
                 <RbAlert className="rb:mt-3 ">
                   <div className={clsx("rb:flex rb:gap-5 rb:font-regular rb:text-[14px]")}>
diff --git a/web/src/views/ModelManagement/components/MultiKeyConfigModal.tsx b/web/src/views/ModelManagement/components/MultiKeyConfigModal.tsx
index 8a21e012..169d9690 100644
--- a/web/src/views/ModelManagement/components/MultiKeyConfigModal.tsx
+++ b/web/src/views/ModelManagement/components/MultiKeyConfigModal.tsx
@@ -103,9 +103,9 @@ const MultiKeyConfigModal = forwardRef<MultiKeyConfigModalRef, MultiKeyConfigMod
       {model.api_keys && model.api_keys.length > 0 && (
         <div className="rb:mb-4">
           {model.api_keys.map((key) => (
-            <div key={key.id} className="rb:flex rb:items-center rb:justify-between rb:p-3 rb:bg-[#F5F6F7] rb:rounded-lg rb:mb-2">
-              <div>
-                <div className="rb:text-[#1D2129] rb:text-[14px] rb:font-medium">{key.api_key}</div>
+            <div key={key.id} className="rb:flex rb:gap-3 rb:items-center rb:justify-between rb:p-3 rb:bg-[#F5F6F7] rb:rounded-lg rb:mb-2">
+              <div className="rb:flex-1">
+                <div className="rb:text-[#1D2129] rb:text-[14px] rb:font-medium rb:break-all">{key.api_key}</div>
                 <div className="rb:text-[#5B6167] rb:text-[12px] rb:mt-1">{key.api_base}</div>
               </div>
               <Button type="primary" danger ghost onClick={() => handleDelete(key.id)}>{t('common.remove')}</Button>
diff --git a/web/src/views/Workflow/components/Editor/index.tsx b/web/src/views/Workflow/components/Editor/index.tsx
index 4c8540a8..60da03a7 100644
--- a/web/src/views/Workflow/components/Editor/index.tsx
+++ b/web/src/views/Workflow/components/Editor/index.tsx
@@ -15,8 +15,6 @@ import CharacterCountPlugin from './plugin/CharacterCountPlugin'
 import InitialValuePlugin from './plugin/InitialValuePlugin';
 import CommandPlugin from './plugin/CommandPlugin';
 import Jinja2HighlightPlugin from './plugin/Jinja2HighlightPlugin';
-import Python3HighlightPlugin from './plugin/Python3HighlightPlugin';
-import JavaScriptHighlightPlugin from './plugin/JavaScriptHighlightPlugin';
 import LineNumberPlugin from './plugin/LineNumberPlugin';
 import BlurPlugin from './plugin/BlurPlugin';
 import { VariableNode } from './nodes/VariableNode'
@@ -32,7 +30,7 @@ export interface LexicalEditorProps {
   lineHeight?: number;
   size?: 'default' | 'small';
   type?: 'input' | 'textarea',
-  language?: 'string' | 'jinja2' | 'python3' | 'javascript'
+  language?: 'string' | 'jinja2'
 }
 
 const theme = {
@@ -67,7 +65,7 @@ const Editor: FC<LexicalEditorProps> =({
   const [enableLineNumbers, setEnableLineNumbers] = useState(false)
 
   useEffect(() => {
-    const needsLineNumbers = language === 'jinja2' || language === 'python3' || language === 'javascript';
+    const needsLineNumbers = language === 'jinja2';
     setEnableJinja2(language === 'jinja2');
     setEnableLineNumbers(needsLineNumbers);
 
@@ -237,13 +235,11 @@ const Editor: FC<LexicalEditorProps> =({
         <HistoryPlugin />
         <CommandPlugin />
         {language === 'jinja2' && <Jinja2HighlightPlugin />}
-        {language === 'python3' && <Python3HighlightPlugin />}
-        {language === 'javascript' && <JavaScriptHighlightPlugin />}
         {enableLineNumbers && <LineNumberPlugin />}
         <AutocompletePlugin options={options} enableJinja2={enableJinja2} />
         <CharacterCountPlugin setCount={(count) => { setCount(count) }} onChange={onChange} />
-        <InitialValuePlugin key={language} value={value} options={options} enableLineNumbers={enableLineNumbers} />
-        {enableLineNumbers && <BlurPlugin />}
+        <InitialValuePlugin value={value} options={options} enableLineNumbers={enableLineNumbers} />
+        {enableJinja2 && <BlurPlugin />}
       </div>
     </LexicalComposer>
   );
diff --git a/web/src/views/Workflow/components/Editor/plugin/JavaScriptHighlightPlugin.tsx b/web/src/views/Workflow/components/Editor/plugin/JavaScriptHighlightPlugin.tsx
deleted file mode 100644
index 21219139..00000000
--- a/web/src/views/Workflow/components/Editor/plugin/JavaScriptHighlightPlugin.tsx
+++ /dev/null
@@ -1,182 +0,0 @@
-import { useEffect, useRef } from 'react';
-import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext';
-import { TextNode, $createTextNode, $getSelection, $isRangeSelection, COMMAND_PRIORITY_LOW, PASTE_COMMAND } from 'lexical';
-
-const JS_KEYWORDS = new Set([
-  'async', 'await', 'break', 'case', 'catch', 'class', 'const', 'continue', 'debugger', 'default',
-  'delete', 'do', 'else', 'export', 'extends', 'finally', 'for', 'function', 'if', 'import',
-  'in', 'instanceof', 'let', 'new', 'return', 'super', 'switch', 'this', 'throw', 'try',
-  'typeof', 'var', 'void', 'while', 'with', 'yield', 'true', 'false', 'null', 'undefined'
-]);
-
-const JavaScriptHighlightPlugin = () => {
-  const [editor] = useLexicalComposerContext();
-  const isPastingRef = useRef(false);
-
-  useEffect(() => {
-    return editor.registerCommand(
-      PASTE_COMMAND,
-      () => {
-        isPastingRef.current = true;
-        setTimeout(() => {
-          isPastingRef.current = false;
-        }, 100);
-        return false;
-      },
-      COMMAND_PRIORITY_LOW
-    );
-  }, [editor]);
-
-  useEffect(() => {
-    return editor.registerNodeTransform(TextNode, (textNode: TextNode) => {
-      if (isPastingRef.current) return;
-      
-      const text = textNode.getTextContent();
-      
-      if (textNode.hasFormat('code')) return;
-      if (!needsHighlight(text)) return;
-      if (textNode.getStyle()) return;
-      
-      const parent = textNode.getParent();
-      if (!parent) return;
-
-      const selection = $getSelection();
-      let selectionOffset = null;
-      if ($isRangeSelection(selection)) {
-        const anchor = selection.anchor;
-        if (anchor.getNode() === textNode) {
-          selectionOffset = anchor.offset;
-        }
-      }
-
-      const tokens = tokenizeJavaScript(text);
-      if (tokens.length <= 1) return;
-      
-      const newNodes = tokens.map(token => {
-        const newNode = $createTextNode(token.text);
-        newNode.toggleFormat('code');
-        
-        switch (token.type) {
-          case 'keyword':
-            newNode.setStyle('color: #d73a49; font-weight: 600;');
-            break;
-          case 'string':
-            newNode.setStyle('color: #032f62;');
-            break;
-          case 'comment':
-            newNode.setStyle('color: #6a737d; font-style: italic;');
-            break;
-          case 'number':
-            newNode.setStyle('color: #005cc5; font-weight: 500;');
-            break;
-          case 'function':
-            newNode.setStyle('color: #6f42c1; font-weight: 500;');
-            break;
-        }
-        
-        return newNode;
-      });
-
-      if (newNodes.length > 1) {
-        textNode.replace(newNodes[0]);
-        for (let i = 1; i < newNodes.length; i++) {
-          newNodes[i - 1].insertAfter(newNodes[i]);
-        }
-        
-        if (selectionOffset !== null && $isRangeSelection(selection)) {
-          let currentOffset = 0;
-          for (const node of newNodes) {
-            const nodeLength = node.getTextContent().length;
-            if (currentOffset + nodeLength >= selectionOffset) {
-              node.select(selectionOffset - currentOffset, selectionOffset - currentOffset);
-              break;
-            }
-            currentOffset += nodeLength;
-          }
-        }
-      }
-    });
-  }, [editor]);
-
-  return null;
-};
-
-function needsHighlight(text: string): boolean {
-  return /[a-zA-Z0-9_/"'`]/.test(text);
-}
-
-function tokenizeJavaScript(text: string): Array<{text: string, type: string}> {
-  const tokens: Array<{text: string, type: string}> = [];
-  let i = 0;
-  
-  while (i < text.length) {
-    // Single-line comments
-    if (text.slice(i, i + 2) === '//') {
-      let start = i;
-      while (i < text.length && text[i] !== '\n') i++;
-      tokens.push({ text: text.slice(start, i), type: 'comment' });
-      continue;
-    }
-    
-    // Multi-line comments
-    if (text.slice(i, i + 2) === '/*') {
-      let start = i;
-      i += 2;
-      while (i < text.length && text.slice(i, i + 2) !== '*/') i++;
-      if (i < text.length) i += 2;
-      tokens.push({ text: text.slice(start, i), type: 'comment' });
-      continue;
-    }
-    
-    // Strings
-    if (text[i] === '"' || text[i] === "'" || text[i] === '`') {
-      const quote = text[i];
-      let start = i++;
-      
-      while (i < text.length) {
-        if (text[i] === quote && text[i - 1] !== '\\') {
-          i++;
-          break;
-        }
-        i++;
-      }
-      tokens.push({ text: text.slice(start, i), type: 'string' });
-      continue;
-    }
-    
-    // Numbers
-    if (/\d/.test(text[i])) {
-      let start = i;
-      while (i < text.length && /[\d.]/.test(text[i])) i++;
-      tokens.push({ text: text.slice(start, i), type: 'number' });
-      continue;
-    }
-    
-    // Keywords and identifiers
-    if (/[a-zA-Z_$]/.test(text[i])) {
-      let start = i;
-      while (i < text.length && /[a-zA-Z0-9_$]/.test(text[i])) i++;
-      const word = text.slice(start, i);
-      
-      if (JS_KEYWORDS.has(word)) {
-        tokens.push({ text: word, type: 'keyword' });
-      } else if (i < text.length && text[i] === '(') {
-        tokens.push({ text: word, type: 'function' });
-      } else {
-        tokens.push({ text: word, type: 'text' });
-      }
-      continue;
-    }
-    
-    // Other characters
-    let start = i;
-    while (i < text.length && !/[a-zA-Z0-9_$/"'`]/.test(text[i])) i++;
-    if (start < i) {
-      tokens.push({ text: text.slice(start, i), type: 'text' });
-    }
-  }
-  
-  return tokens;
-}
-
-export default JavaScriptHighlightPlugin;
diff --git a/web/src/views/Workflow/components/Editor/plugin/Python3HighlightPlugin.tsx b/web/src/views/Workflow/components/Editor/plugin/Python3HighlightPlugin.tsx
deleted file mode 100644
index 12830ffb..00000000
--- a/web/src/views/Workflow/components/Editor/plugin/Python3HighlightPlugin.tsx
+++ /dev/null
@@ -1,177 +0,0 @@
-import { useEffect, useRef } from 'react';
-import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext';
-import { TextNode, $createTextNode, $getSelection, $isRangeSelection, COMMAND_PRIORITY_LOW, PASTE_COMMAND } from 'lexical';
-
-const PYTHON_KEYWORDS = new Set([
-  'False', 'None', 'True', 'and', 'as', 'assert', 'async', 'await', 'break', 'class', 'continue',
-  'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import',
-  'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while',
-  'with', 'yield'
-]);
-
-const Python3HighlightPlugin = () => {
-  const [editor] = useLexicalComposerContext();
-  const isPastingRef = useRef(false);
-
-  useEffect(() => {
-    return editor.registerCommand(
-      PASTE_COMMAND,
-      () => {
-        isPastingRef.current = true;
-        setTimeout(() => {
-          isPastingRef.current = false;
-        }, 100);
-        return false;
-      },
-      COMMAND_PRIORITY_LOW
-    );
-  }, [editor]);
-
-  useEffect(() => {
-    return editor.registerNodeTransform(TextNode, (textNode: TextNode) => {
-      if (isPastingRef.current) return;
-      
-      const text = textNode.getTextContent();
-      
-      if (textNode.hasFormat('code')) return;
-      if (textNode.getStyle()) return;
-      if (!needsHighlight(text)) return;
-      
-      const parent = textNode.getParent();
-      if (!parent) return;
-
-      const selection = $getSelection();
-      let selectionOffset = null;
-      if ($isRangeSelection(selection)) {
-        const anchor = selection.anchor;
-        if (anchor.getNode() === textNode) {
-          selectionOffset = anchor.offset;
-        }
-      }
-
-      const tokens = tokenizePython(text);
-      if (tokens.length <= 1) return;
-      
-      const newNodes = tokens.map(token => {
-        const newNode = $createTextNode(token.text);
-        newNode.toggleFormat('code');
-        
-        switch (token.type) {
-          case 'keyword':
-            newNode.setStyle('color: #d73a49; font-weight: 600;');
-            break;
-          case 'string':
-            newNode.setStyle('color: #032f62;');
-            break;
-          case 'comment':
-            newNode.setStyle('color: #6a737d; font-style: italic;');
-            break;
-          case 'number':
-            newNode.setStyle('color: #005cc5; font-weight: 500;');
-            break;
-          case 'function':
-            newNode.setStyle('color: #6f42c1; font-weight: 500;');
-            break;
-        }
-        
-        return newNode;
-      });
-
-      if (newNodes.length > 1) {
-        textNode.replace(newNodes[0]);
-        for (let i = 1; i < newNodes.length; i++) {
-          newNodes[i - 1].insertAfter(newNodes[i]);
-        }
-        
-        if (selectionOffset !== null && $isRangeSelection(selection)) {
-          let currentOffset = 0;
-          for (const node of newNodes) {
-            const nodeLength = node.getTextContent().length;
-            if (currentOffset + nodeLength >= selectionOffset) {
-              node.select(selectionOffset - currentOffset, selectionOffset - currentOffset);
-              break;
-            }
-            currentOffset += nodeLength;
-          }
-        }
-      }
-    });
-  }, [editor]);
-
-  return null;
-};
-
-function needsHighlight(text: string): boolean {
-  return /[a-zA-Z0-9_#"']/.test(text);
-}
-
-function tokenizePython(text: string): Array<{text: string, type: string}> {
-  const tokens: Array<{text: string, type: string}> = [];
-  let i = 0;
-  
-  while (i < text.length) {
-    // Comments
-    if (text[i] === '#') {
-      let start = i;
-      while (i < text.length && text[i] !== '\n') i++;
-      tokens.push({ text: text.slice(start, i), type: 'comment' });
-      continue;
-    }
-    
-    // Strings
-    if (text[i] === '"' || text[i] === "'") {
-      const quote = text[i];
-      let start = i++;
-      const isTriple = text.slice(start, start + 3) === quote.repeat(3);
-      if (isTriple) i += 2;
-      
-      while (i < text.length) {
-        if (isTriple && text.slice(i, i + 3) === quote.repeat(3)) {
-          i += 3;
-          break;
-        } else if (!isTriple && text[i] === quote && text[i - 1] !== '\\') {
-          i++;
-          break;
-        }
-        i++;
-      }
-      tokens.push({ text: text.slice(start, i), type: 'string' });
-      continue;
-    }
-    
-    // Numbers
-    if (/\d/.test(text[i])) {
-      let start = i;
-      while (i < text.length && /[\d.]/.test(text[i])) i++;
-      tokens.push({ text: text.slice(start, i), type: 'number' });
-      continue;
-    }
-    
-    // Keywords and identifiers
-    if (/[a-zA-Z_]/.test(text[i])) {
-      let start = i;
-      while (i < text.length && /[a-zA-Z0-9_]/.test(text[i])) i++;
-      const word = text.slice(start, i);
-      
-      if (PYTHON_KEYWORDS.has(word)) {
-        tokens.push({ text: word, type: 'keyword' });
-      } else if (i < text.length && text[i] === '(') {
-        tokens.push({ text: word, type: 'function' });
-      } else {
-        tokens.push({ text: word, type: 'text' });
-      }
-      continue;
-    }
-    
-    // Other characters
-    let start = i;
-    while (i < text.length && !/[a-zA-Z0-9_#"']/.test(text[i])) i++;
-    if (start < i) {
-      tokens.push({ text: text.slice(start, i), type: 'text' });
-    }
-  }
-  
-  return tokens;
-}
-
-export default Python3HighlightPlugin;
diff --git a/web/src/views/Workflow/components/Properties/CodeExecution/index.tsx b/web/src/views/Workflow/components/Properties/CodeExecution/index.tsx
index 8a0ea03e..b9c2c881 100644
--- a/web/src/views/Workflow/components/Properties/CodeExecution/index.tsx
+++ b/web/src/views/Workflow/components/Properties/CodeExecution/index.tsx
@@ -5,8 +5,8 @@ import { Node } from '@antv/x6'
 
 import type { Suggestion } from '../../Editor/plugin/AutocompletePlugin'
 import MappingList from '../MappingList'
-import Editor from '../../Editor'
 import OutputList from './OutputList'
+import CodeMirrorEditor from '@/components/CodeMirrorEditor';
 
 interface MappingItem {
   name?: string
@@ -110,7 +110,10 @@ const CodeExecution: FC<CodeExecutionProps> = ({ options }) => {
         <Form.Item noStyle shouldUpdate={(prev, curr) => prev.language !== curr.language}>
           {() => (
             <Form.Item name="code" noStyle>
-              <Editor size="small" language={form.getFieldValue('language')} />
+              <CodeMirrorEditor
+                language={form.getFieldValue('language')}
+                size="small"
+              />
             </Form.Item>
           )}
         </Form.Item>
diff --git a/web/src/views/Workflow/components/Properties/Knowledge/Knowledge.tsx b/web/src/views/Workflow/components/Properties/Knowledge/Knowledge.tsx
index da9603c8..3cd7efcd 100644
--- a/web/src/views/Workflow/components/Properties/Knowledge/Knowledge.tsx
+++ b/web/src/views/Workflow/components/Properties/Knowledge/Knowledge.tsx
@@ -126,7 +126,7 @@ const Knowledge: FC<{value?: KnowledgeConfig; onChange?: (config: KnowledgeConfi
           <div
             className="rb:size-3.5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/workflow/recall.svg')] rb:group-hover:bg-[url('@/assets/images/workflow/recall_hover.svg')]"
           ></div>
-          {t('workflow.config.knowledge-retrieval.recallConfig')}
+          {t('application.globalConfig')}
         </Button>
       </div>