diff --git a/README.md b/README.md
index d7f51e65..104aa5bd 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,8 @@
 
 API文档：https://api.movie-pilot.org
 
+MCP工具API文档：详见 [docs/mcp-api.md](docs/mcp-api.md)
+
 本地运行需要 `Python 3.12`、`Node JS v20.12.1`
 
 - 克隆主项目 [MoviePilot](https://github.com/jxxghp/MoviePilot) 
diff --git a/app/agent/tools/impl/query_sites.py b/app/agent/tools/impl/query_sites.py
index 5992e6b0..028f75b1 100644
--- a/app/agent/tools/impl/query_sites.py
+++ b/app/agent/tools/impl/query_sites.py
@@ -21,7 +21,7 @@ class QuerySitesInput(BaseModel):
 
 class QuerySitesTool(MoviePilotTool):
     name: str = "query_sites"
-    description: str = "Query site status and list all configured sites. Shows site name, domain, status, priority, and basic configuration."
+    description: str = "Query site status and list all configured sites. Shows site name, domain, status, priority, and basic configuration. Site priority (pri): smaller values have higher priority (e.g., pri=1 has higher priority than pri=10)."
     args_schema: Type[BaseModel] = QuerySitesInput
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
diff --git a/app/agent/tools/impl/update_site.py b/app/agent/tools/impl/update_site.py
index a3b18ead..59d5349b 100644
--- a/app/agent/tools/impl/update_site.py
+++ b/app/agent/tools/impl/update_site.py
@@ -20,7 +20,7 @@ class UpdateSiteInput(BaseModel):
     site_id: int = Field(..., description="The ID of the site to update")
     name: Optional[str] = Field(None, description="Site name (optional)")
     url: Optional[str] = Field(None, description="Site URL (optional, will be automatically formatted)")
-    pri: Optional[int] = Field(None, description="Site priority (optional, higher number = higher priority)")
+    pri: Optional[int] = Field(None, description="Site priority (optional, smaller value = higher priority, e.g., pri=1 has higher priority than pri=10)")
     rss: Optional[str] = Field(None, description="RSS feed URL (optional)")
     cookie: Optional[str] = Field(None, description="Site cookie (optional)")
     ua: Optional[str] = Field(None, description="User-Agent string (optional)")
@@ -39,7 +39,7 @@ class UpdateSiteInput(BaseModel):
 
 class UpdateSiteTool(MoviePilotTool):
     name: str = "update_site"
-    description: str = "Update site configuration including URL, priority, authentication credentials (cookie, UA, API key), proxy settings, rate limits, and other site properties. Supports updating multiple site attributes at once."
+    description: str = "Update site configuration including URL, priority, authentication credentials (cookie, UA, API key), proxy settings, rate limits, and other site properties. Supports updating multiple site attributes at once. Site priority (pri): smaller values have higher priority (e.g., pri=1 has higher priority than pri=10)."
     args_schema: Type[BaseModel] = UpdateSiteInput
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
diff --git a/app/modules/filemanager/storages/u115.py b/app/modules/filemanager/storages/u115.py
index 844b903b..a1bb4e27 100644
--- a/app/modules/filemanager/storages/u115.py
+++ b/app/modules/filemanager/storages/u115.py
@@ -1,15 +1,16 @@
 import base64
-import hashlib
 import secrets
-import threading
 import time
 from pathlib import Path
-from typing import List, Optional, Tuple, Union
+from threading import Lock
+from typing import List, Optional, Tuple, Union, Dict
+from hashlib import sha256
 
 import oss2
-import requests
+import httpx
 from oss2 import SizedFileAdapter, determine_part_size
 from oss2.models import PartInfo
+from cryptography.hazmat.primitives import hashes
 
 from app import schemas
 from app.core.config import settings, global_vars
@@ -19,8 +20,10 @@ from app.modules.filemanager.storages import transfer_process
 from app.schemas.types import StorageSchema
 from app.utils.singleton import WeakSingleton
 from app.utils.string import StringUtils
+from app.utils.limit import QpsRateLimiter
 
-lock = threading.Lock()
+
+lock = Lock()
 
 
 class NoCheckInException(Exception):
@@ -36,10 +39,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
     schema = StorageSchema.U115
 
     # 支持的整理方式
-    transtype = {
-        "move": "移动",
-        "copy": "复制"
-    }
+    transtype = {"move": "移动", "copy": "复制"}
     # 基础url
     base_url = "https://proapi.115.com"
 
@@ -52,18 +52,28 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
     def __init__(self):
         super().__init__()
         self._auth_state = {}
-        self.session = requests.Session()
+        self.session = httpx.Client(follow_redirects=True, timeout=20.0)
         self._init_session()
+        self.qps_limiter: Dict[str, QpsRateLimiter] = {
+            "/open/ufile/files": QpsRateLimiter(4),
+            "/open/folder/get_info": QpsRateLimiter(3),
+            "/open/ufile/move": QpsRateLimiter(2),
+            "/open/ufile/copy": QpsRateLimiter(2),
+            "/open/ufile/update": QpsRateLimiter(2),
+            "/open/ufile/delete": QpsRateLimiter(2),
+        }
 
     def _init_session(self):
         """
         初始化带速率限制的会话
         """
-        self.session.headers.update({
-            "User-Agent": "W115Storage/2.0",
-            "Accept-Encoding": "gzip, deflate",
-            "Content-Type": "application/x-www-form-urlencoded"
-        })
+        self.session.headers.update(
+            {
+                "User-Agent": "W115Storage/2.0",
+                "Accept-Encoding": "gzip, deflate",
+                "Content-Type": "application/x-www-form-urlencoded",
+            }
+        )
 
     def _check_session(self):
         """
@@ -87,10 +97,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             if expires_in and refresh_time + expires_in < int(time.time()):
                 tokens = self.__refresh_access_token(refresh_token)
                 if tokens:
-                    self.set_config({
-                        "refresh_time": int(time.time()),
-                        **tokens
-                    })
+                    self.set_config({"refresh_time": int(time.time()), **tokens})
                 else:
                     return None
             access_token = tokens.get("access_token")
@@ -105,7 +112,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         # 生成PKCE参数
         code_verifier = secrets.token_urlsafe(96)[:128]
         code_challenge = base64.b64encode(
-            hashlib.sha256(code_verifier.encode("utf-8")).digest()
+            sha256(code_verifier.encode("utf-8")).digest()
         ).decode("utf-8")
         # 请求设备码
         resp = self.session.post(
@@ -113,8 +120,8 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             data={
                 "client_id": settings.U115_APP_ID,
                 "code_challenge": code_challenge,
-                "code_challenge_method": "sha256"
-            }
+                "code_challenge_method": "sha256",
+            },
         )
         if resp is None:
             return {}, "网络错误"
@@ -126,13 +133,11 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             "code_verifier": code_verifier,
             "uid": result["data"]["uid"],
             "time": result["data"]["time"],
-            "sign": result["data"]["sign"]
+            "sign": result["data"]["sign"],
         }
 
         # 生成二维码内容
-        return {
-            "codeContent": result['data']['qrcode']
-        }, ""
+        return {"codeContent": result["data"]["qrcode"]}, ""
 
     def check_login(self) -> Optional[Tuple[dict, str]]:
         """
@@ -146,8 +151,8 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 params={
                     "uid": self._auth_state["uid"],
                     "time": self._auth_state["time"],
-                    "sign": self._auth_state["sign"]
-                }
+                    "sign": self._auth_state["sign"],
+                },
             )
             if resp is None:
                 return {}, "网络错误"
@@ -156,11 +161,11 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 return {}, result.get("message")
             if result["data"]["status"] == 2:
                 tokens = self.__get_access_token()
-                self.set_config({
-                    "refresh_time": int(time.time()),
-                    **tokens
-                })
-            return {"status": result["data"]["status"], "tip": result["data"]["msg"]}, ""
+                self.set_config({"refresh_time": int(time.time()), **tokens})
+            return {
+                "status": result["data"]["status"],
+                "tip": result["data"]["msg"],
+            }, ""
         except Exception as e:
             return {}, str(e)
 
@@ -174,8 +179,8 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             "https://passportapi.115.com/open/deviceCodeToToken",
             data={
                 "uid": self._auth_state["uid"],
-                "code_verifier": self._auth_state["code_verifier"]
-            }
+                "code_verifier": self._auth_state["code_verifier"],
+            },
         )
         if resp is None:
             raise Exception("获取 access_token 失败")
@@ -190,21 +195,24 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         """
         resp = self.session.post(
             "https://passportapi.115.com/open/refreshToken",
-            data={
-                "refresh_token": refresh_token
-            }
+            data={"refresh_token": refresh_token},
         )
         if resp is None:
-            logger.error(f"【115】刷新 access_token 失败：refresh_token={refresh_token}")
+            logger.error(
+                f"【115】刷新 access_token 失败：refresh_token={refresh_token}"
+            )
             return None
         result = resp.json()
         if result.get("code") != 0:
-            logger.warn(f"【115】刷新 access_token 失败：{result.get('code')} - {result.get('message')}！")
+            logger.warn(
+                f"【115】刷新 access_token 失败：{result.get('code')} - {result.get('message')}！"
+            )
             return None
         return result.get("data")
 
-    def _request_api(self, method: str, endpoint: str,
-                     result_key: Optional[str] = None, **kwargs) -> Optional[Union[dict, list]]:
+    def _request_api(
+        self, method: str, endpoint: str, result_key: Optional[str] = None, **kwargs
+    ) -> Optional[Union[dict, list]]:
         """
         带错误处理和速率限制的API请求
         """
@@ -216,12 +224,13 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         # 重试次数
         retry_times = kwargs.pop("retry_limit", 5)
 
+        # qps 速率限制
+        if endpoint in self.qps_limiter:
+            self.qps_limiter[endpoint].acquire()
+
         try:
-            resp = self.session.request(
-                method, f"{self.base_url}{endpoint}",
-                **kwargs
-            )
-        except requests.exceptions.RequestException as e:
+            resp = self.session.request(method, f"{self.base_url}{endpoint}", **kwargs)
+        except httpx.RequestError as e:
             logger.error(f"【115】{method} 请求 {endpoint} 网络错误: {str(e)}")
             return None
 
@@ -241,7 +250,21 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             return self._request_api(method, endpoint, result_key, **kwargs)
 
         # 处理请求错误
-        resp.raise_for_status()
+        try:
+            resp.raise_for_status()
+        except httpx.HTTPStatusError as e:
+            if retry_times <= 0:
+                logger.error(
+                    f"【115】{method} 请求 {endpoint} 错误 {e}，重试次数用尽！"
+                )
+                return None
+            kwargs["retry_limit"] = retry_times - 1
+            sleep_duration = 2 ** (5 - retry_times + 1)
+            logger.info(
+                f"【115】{method} 请求 {endpoint} 错误 {e}，等待 {sleep_duration} 秒后重试..."
+            )
+            time.sleep(sleep_duration)
+            return self._request_api(method, endpoint, result_key, **kwargs)
 
         # 返回数据
         ret_data = resp.json()
@@ -251,10 +274,14 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 logger.warn(f"【115】{method} 请求 {endpoint} 出错：{error_msg}")
             if "已达到当前访问上限" in error_msg:
                 if retry_times <= 0:
-                    logger.error(f"【115】{method} 请求 {endpoint} 达到访问上限，重试次数用尽！")
+                    logger.error(
+                        f"【115】{method} 请求 {endpoint} 达到访问上限，重试次数用尽！"
+                    )
                     return None
                 kwargs["retry_limit"] = retry_times - 1
-                logger.info(f"【115】{method} 请求 {endpoint} 达到访问上限，等待 {self.retry_delay} 秒后重试...")
+                logger.info(
+                    f"【115】{method} 请求 {endpoint} 达到访问上限，等待 {self.retry_delay} 秒后重试..."
+                )
                 time.sleep(self.retry_delay)
                 return self._request_api(method, endpoint, result_key, **kwargs)
             return None
@@ -269,26 +296,15 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         计算文件SHA1（符合115规范）
         size: 前多少字节
         """
-        sha1 = hashlib.sha1()
-        with open(filepath, 'rb') as f:
+        sha1 = hashes.Hash(hashes.SHA1())
+        with open(filepath, "rb") as f:
             if size:
                 chunk = f.read(size)
                 sha1.update(chunk)
             else:
                 while chunk := f.read(8192):
                     sha1.update(chunk)
-        return sha1.hexdigest()
-
-    def _delay_get_item(self, path: Path) -> Optional[schemas.FileItem]:
-        """
-        自动延迟重试 get_item 模块
-        """
-        for i in range(1, 4):
-            time.sleep(2 ** i)
-            fileitem = self.get_item(path)
-            if fileitem:
-                return fileitem
-        return None
+        return sha1.finalize().hex()
 
     def init_storage(self):
         pass
@@ -304,7 +320,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 return [item]
             return []
         if fileitem.path == "/":
-            cid = '0'
+            cid = "0"
         else:
             cid = fileitem.fileid
             if not cid:
@@ -322,29 +338,37 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 "GET",
                 "/open/ufile/files",
                 "data",
-                params={"cid": int(cid), "limit": 1000, "offset": offset, "cur": True, "show_dir": 1}
+                params={
+                    "cid": int(cid),
+                    "limit": 1000,
+                    "offset": offset,
+                    "cur": True,
+                    "show_dir": 1,
+                },
             )
             if resp is None:
                 raise FileNotFoundError(f"【115】{fileitem.path} 检索出错！")
             if not resp:
                 break
             for item in resp:
-                # 更新缓存
-                path = f"{fileitem.path}{item['fn']}"
-                file_path = path + ("/" if item["fc"] == "0" else "")
-                items.append(schemas.FileItem(
-                    storage=self.schema.value,
-                    fileid=str(item["fid"]),
-                    parent_fileid=cid,
-                    name=item["fn"],
-                    basename=Path(item["fn"]).stem,
-                    extension=item["ico"] if item["fc"] == "1" else None,
-                    type="dir" if item["fc"] == "0" else "file",
-                    path=file_path,
-                    size=item["fs"] if item["fc"] == "1" else None,
-                    modify_time=item["upt"],
-                    pickcode=item["pc"]
-                ))
+                parent_path = Path(fileitem.path)  # noqa
+                item_name = item["fn"]
+                full_path = parent_path / item_name
+                items.append(
+                    schemas.FileItem(
+                        storage=self.schema.value,
+                        fileid=str(item["fid"]),
+                        parent_fileid=cid,
+                        name=item["fn"],
+                        basename=Path(item["fn"]).stem,
+                        extension=item["ico"] if item["fc"] == "1" else None,
+                        type="dir" if item["fc"] == "0" else "file",
+                        path=full_path.as_posix() + ("/" if item["fc"] == "0" else ""),
+                        size=item["fs"] if item["fc"] == "1" else None,
+                        modify_time=item["upt"],
+                        pickcode=item["pc"],
+                    )
+                )
 
             if len(resp) < 1000:
                 break
@@ -352,7 +376,9 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
 
         return items
 
-    def create_folder(self, parent_item: schemas.FileItem, name: str) -> Optional[schemas.FileItem]:
+    def create_folder(
+        self, parent_item: schemas.FileItem, name: str
+    ) -> Optional[schemas.FileItem]:
         """
         创建目录
         """
@@ -360,10 +386,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         resp = self._request_api(
             "POST",
             "/open/folder/add",
-            data={
-                "pid": int(parent_item.fileid or "0"),
-                "file_name": name
-            }
+            data={"pid": int(parent_item.fileid or "0"), "file_name": name},
         )
         if not resp:
             return None
@@ -376,15 +399,19 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         return schemas.FileItem(
             storage=self.schema.value,
             fileid=str(resp["data"]["file_id"]),
-            path=str(new_path) + "/",
+            path=new_path.as_posix() + "/",
             name=name,
             basename=name,
             type="dir",
-            modify_time=int(time.time())
+            modify_time=int(time.time()),
         )
 
-    def upload(self, target_dir: schemas.FileItem, local_path: Path,
-               new_name: Optional[str] = None) -> Optional[schemas.FileItem]:
+    def upload(
+        self,
+        target_dir: schemas.FileItem,
+        local_path: Path,
+        new_name: Optional[str] = None,
+    ) -> Optional[schemas.FileItem]:
         """
         实现带秒传、断点续传和二次认证的文件上传
         """
@@ -409,13 +436,9 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             "file_size": file_size,
             "target": target_param,
             "fileid": file_sha1,
-            "preid": file_preid
+            "preid": file_preid,
         }
-        init_resp = self._request_api(
-            "POST",
-            "/open/upload/init",
-            data=init_data
-        )
+        init_resp = self._request_api("POST", "/open/upload/init", data=init_data)
         if not init_resp:
             return None
         if not init_resp.get("state"):
@@ -444,19 +467,15 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 # 取2392148-2392298之间的内容(包含2392148、2392298)的sha1
                 f.seek(start)
                 chunk = f.read(end - start + 1)
-                sign_val = hashlib.sha1(chunk).hexdigest().upper()
+                sha1 = hashes.Hash(hashes.SHA1())
+                sha1.update(chunk)
+                sign_val = sha1.finalize().hex().upper()
             # 重新初始化请求
             # sign_key，sign_val(根据sign_check计算的值大写的sha1值)
-            init_data.update({
-                "pick_code": pick_code,
-                "sign_key": sign_key,
-                "sign_val": sign_val
-            })
-            init_resp = self._request_api(
-                "POST",
-                "/open/upload/init",
-                data=init_data
+            init_data.update(
+                {"pick_code": pick_code, "sign_key": sign_key, "sign_val": sign_val}
             )
+            init_resp = self._request_api("POST", "/open/upload/init", data=init_data)
             if not init_resp:
                 return None
             if not init_resp.get("state"):
@@ -485,32 +504,30 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                     "GET",
                     "/open/folder/get_info",
                     "data",
-                    params={
-                        "file_id": int(file_id)
-                    }
+                    params={"file_id": int(file_id)},
                 )
                 if info_resp:
                     return schemas.FileItem(
                         storage=self.schema.value,
                         fileid=str(info_resp["file_id"]),
-                        path=str(target_path) + ("/" if info_resp["file_category"] == "0" else ""),
+                        path=target_path.as_posix()
+                        + ("/" if info_resp["file_category"] == "0" else ""),
                         type="file" if info_resp["file_category"] == "1" else "dir",
                         name=info_resp["file_name"],
                         basename=Path(info_resp["file_name"]).stem,
-                        extension=Path(info_resp["file_name"]).suffix[1:] if info_resp[
-                                                                                 "file_category"] == "1" else None,
+                        extension=Path(info_resp["file_name"]).suffix[1:]
+                        if info_resp["file_category"] == "1"
+                        else None,
                         pickcode=info_resp["pick_code"],
-                        size=StringUtils.num_filesize(info_resp['size']) if info_resp["file_category"] == "1" else None,
-                        modify_time=info_resp["utime"]
+                        size=StringUtils.num_filesize(info_resp["size"])
+                        if info_resp["file_category"] == "1"
+                        else None,
+                        modify_time=info_resp["utime"],
                     )
-            return self._delay_get_item(target_path)
+            return self.get_item(target_path)
 
         # Step 4: 获取上传凭证
-        token_resp = self._request_api(
-            "GET",
-            "/open/upload/get_token",
-            "data"
-        )
+        token_resp = self._request_api("GET", "/open/upload/get_token", "data")
         if not token_resp:
             logger.warn("【115】获取上传凭证失败")
             return None
@@ -530,8 +547,8 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 "file_size": file_size,
                 "target": target_param,
                 "fileid": file_sha1,
-                "pick_code": pick_code
-            }
+                "pick_code": pick_code,
+            },
         )
         if resume_resp:
             logger.debug(f"【115】上传 Step 5 断点续传结果: {resume_resp}")
@@ -542,25 +559,25 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         auth = oss2.StsAuth(
             access_key_id=AccessKeyId,
             access_key_secret=AccessKeySecret,
-            security_token=SecurityToken
+            security_token=SecurityToken,
         )
         bucket = oss2.Bucket(auth, endpoint, bucket_name)  # noqa
         # determine_part_size方法用于确定分片大小，设置分片大小为 10M
         part_size = determine_part_size(file_size, preferred_size=10 * 1024 * 1024)
 
         # 初始化进度条
-        logger.info(f"【115】开始上传: {local_path} -> {target_path}，分片大小：{StringUtils.str_filesize(part_size)}")
+        logger.info(
+            f"【115】开始上传: {local_path} -> {target_path}，分片大小：{StringUtils.str_filesize(part_size)}"
+        )
         progress_callback = transfer_process(local_path.as_posix())
 
         # 初始化分片
-        upload_id = bucket.init_multipart_upload(object_name,
-                                                 params={
-                                                     "encoding-type": "url",
-                                                     "sequential": ""
-                                                 }).upload_id
+        upload_id = bucket.init_multipart_upload(
+            object_name, params={"encoding-type": "url", "sequential": ""}
+        ).upload_id
         parts = []
         # 逐个上传分片
-        with open(local_path, 'rb') as fileobj:
+        with open(local_path, "rb") as fileobj:
             part_number = 1
             offset = 0
             while offset < file_size:
@@ -569,9 +586,15 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                     return None
                 num_to_upload = min(part_size, file_size - offset)
                 # 调用SizedFileAdapter(fileobj, size)方法会生成一个新的文件对象，重新计算起始追加位置。
-                logger.info(f"【115】开始上传 {target_name} 分片 {part_number}: {offset} -> {offset + num_to_upload}")
-                result = bucket.upload_part(object_name, upload_id, part_number,
-                                            data=SizedFileAdapter(fileobj, num_to_upload))
+                logger.info(
+                    f"【115】开始上传 {target_name} 分片 {part_number}: {offset} -> {offset + num_to_upload}"
+                )
+                result = bucket.upload_part(
+                    object_name,
+                    upload_id,
+                    part_number,
+                    data=SizedFileAdapter(fileobj, num_to_upload),
+                )
                 parts.append(PartInfo(part_number, result.etag))
                 logger.info(f"【115】{target_name} 分片 {part_number} 上传完成")
                 offset += num_to_upload
@@ -585,15 +608,18 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
 
         # 请求头
         headers = {
-            'X-oss-callback': encode_callback(callback["callback"]),
-            'x-oss-callback-var': encode_callback(callback["callback_var"]),
-            'x-oss-forbid-overwrite': 'false'
+            "X-oss-callback": encode_callback(callback["callback"]),
+            "x-oss-callback-var": encode_callback(callback["callback_var"]),
+            "x-oss-forbid-overwrite": "false",
         }
         try:
-            result = bucket.complete_multipart_upload(object_name, upload_id, parts,
-                                                      headers=headers)
+            result = bucket.complete_multipart_upload(
+                object_name, upload_id, parts, headers=headers
+            )
             if result.status == 200:
-                logger.debug(f"【115】上传 Step 6 回调结果：{result.resp.response.json()}")
+                logger.debug(
+                    f"【115】上传 Step 6 回调结果：{result.resp.response.json()}"
+                )
                 logger.info(f"【115】{target_name} 上传成功")
             else:
                 logger.warn(f"【115】{target_name} 上传失败，错误码: {result.status}")
@@ -602,10 +628,12 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             if e.code == "FileAlreadyExists":
                 logger.warn(f"【115】{target_name} 已存在")
             else:
-                logger.error(f"【115】{target_name} 上传失败: {e.status}, 错误码: {e.code}, 详情: {e.message}")
+                logger.error(
+                    f"【115】{target_name} 上传失败: {e.status}, 错误码: {e.code}, 详情: {e.message}"
+                )
                 return None
         # 返回结果
-        return self._delay_get_item(target_path)
+        return self.get_item(target_path)
 
     def download(self, fileitem: schemas.FileItem, path: Path = None) -> Optional[Path]:
         """
@@ -617,12 +645,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             return None
 
         download_info = self._request_api(
-            "POST",
-            "/open/ufile/downurl",
-            "data",
-            data={
-                "pick_code": detail.pickcode
-            }
+            "POST", "/open/ufile/downurl", "data", data={"pick_code": detail.pickcode}
         )
         if not download_info:
             logger.error(f"【115】获取下载链接失败: {fileitem.name}")
@@ -643,28 +666,26 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         progress_callback = transfer_process(Path(fileitem.path).as_posix())
 
         try:
-            with self.session.get(download_url, stream=True) as r:
+            with self.session.stream("GET", download_url) as r:
                 r.raise_for_status()
                 downloaded_size = 0
 
                 with open(local_path, "wb") as f:
-                    for chunk in r.iter_content(chunk_size=self.chunk_size):
+                    for chunk in r.iter_bytes(chunk_size=self.chunk_size):
                         if global_vars.is_transfer_stopped(fileitem.path):
                             logger.info(f"【115】{fileitem.path} 下载已取消！")
+                            r.close()
                             return None
-                        if chunk:
-                            f.write(chunk)
-                            downloaded_size += len(chunk)
-                            # 更新进度
-                            if file_size:
-                                progress = (downloaded_size * 100) / file_size
-                                progress_callback(progress)
+                        f.write(chunk)
+                        downloaded_size += len(chunk)
+                        if file_size:
+                            progress = (downloaded_size * 100) / file_size
+                            progress_callback(progress)
 
                 # 完成下载
                 progress_callback(100)
                 logger.info(f"【115】下载完成: {fileitem.name}")
-
-        except requests.exceptions.RequestException as e:
+        except httpx.RequestError as e:
             logger.error(f"【115】下载网络错误: {fileitem.name} - {str(e)}")
             # 删除可能部分下载的文件
             if local_path.exists():
@@ -688,14 +709,10 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         """
         try:
             self._request_api(
-                "POST",
-                "/open/ufile/delete",
-                data={
-                    "file_ids": int(fileitem.fileid)
-                }
+                "POST", "/open/ufile/delete", data={"file_ids": int(fileitem.fileid)}
             )
             return True
-        except requests.exceptions.HTTPError:
+        except httpx.HTTPError:
             return False
 
     def rename(self, fileitem: schemas.FileItem, name: str) -> bool:
@@ -705,10 +722,7 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         resp = self._request_api(
             "POST",
             "/open/ufile/update",
-            data={
-                "file_id": int(fileitem.fileid),
-                "file_name": name
-            }
+            data={"file_id": int(fileitem.fileid), "file_name": name},
         )
         if not resp:
             return False
@@ -725,10 +739,8 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 "POST",
                 "/open/folder/get_info",
                 "data",
-                data={
-                    "path": path.as_posix()
-                },
-                no_error_log=True
+                data={"path": path.as_posix()},
+                no_error_log=True,
             )
             if not resp:
                 return None
@@ -739,10 +751,12 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
                 type="file" if resp["file_category"] == "1" else "dir",
                 name=resp["file_name"],
                 basename=Path(resp["file_name"]).stem,
-                extension=Path(resp["file_name"]).suffix[1:] if resp["file_category"] == "1" else None,
+                extension=Path(resp["file_name"]).suffix[1:]
+                if resp["file_category"] == "1"
+                else None,
                 pickcode=resp["pick_code"],
-                size=resp['size_byte'] if resp["file_category"] == "1" else None,
-                modify_time=resp["utime"]
+                size=resp["size_byte"] if resp["file_category"] == "1" else None,
+                modify_time=resp["utime"],
             )
         except Exception as e:
             logger.debug(f"【115】获取文件信息失败: {str(e)}")
@@ -753,7 +767,9 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         获取指定路径的文件夹，如不存在则创建
         """
 
-        def __find_dir(_fileitem: schemas.FileItem, _name: str) -> Optional[schemas.FileItem]:
+        def __find_dir(
+            _fileitem: schemas.FileItem, _name: str
+        ) -> Optional[schemas.FileItem]:
             """
             查找下级目录中匹配名称的目录
             """
@@ -808,13 +824,13 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             data={
                 "file_id": int(fileitem.fileid),
                 "pid": int(dest_fileitem.fileid),
-            }
+            },
         )
         if not resp:
             return False
         if resp["state"]:
             new_path = Path(path) / fileitem.name
-            new_item = self._delay_get_item(new_path)
+            new_item = self.get_item(new_path)
             if not new_item:
                 return False
             if self.rename(new_item, new_name):
@@ -840,13 +856,13 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
             data={
                 "file_ids": int(fileitem.fileid),
                 "to_cid": int(dest_fileitem.fileid),
-            }
+            },
         )
         if not resp:
             return False
         if resp["state"]:
             new_path = Path(path) / fileitem.name
-            new_file = self._delay_get_item(new_path)
+            new_file = self.get_item(new_path)
             if not new_file:
                 return False
             if self.rename(new_file, new_name):
@@ -864,17 +880,12 @@ class U115Pan(StorageBase, metaclass=WeakSingleton):
         获取带有企业级配额信息的存储使用情况
         """
         try:
-            resp = self._request_api(
-                "GET",
-                "/open/user/info",
-                "data"
-            )
+            resp = self._request_api("GET", "/open/user/info", "data")
             if not resp:
                 return None
             space = resp["rt_space_info"]
             return schemas.StorageUsage(
-                total=space["all_total"]["size"],
-                available=space["all_remain"]["size"]
+                total=space["all_total"]["size"], available=space["all_remain"]["size"]
             )
         except NoCheckInException:
             return None
diff --git a/app/utils/limit.py b/app/utils/limit.py
index 6205d1fc..e9a90acd 100644
--- a/app/utils/limit.py
+++ b/app/utils/limit.py
@@ -382,3 +382,28 @@ def rate_limit_window(max_calls: int, window_seconds: float,
     limiter = WindowRateLimiter(max_calls, window_seconds, source, enable_logging)
     # 使用通用装饰器逻辑包装该限流器
     return rate_limit_handler(limiter, raise_on_limit)
+
+
+class QpsRateLimiter:
+    """
+    速率控制器，精确控制 QPS
+    """
+
+    def __init__(self, qps: float | int):
+        if qps <= 0:
+            qps = float("inf")
+        self.interval = 1.0 / qps
+        self.lock = threading.Lock()
+        self.next_call_time = time.monotonic()
+
+    def acquire(self) -> None:
+        """
+        获取调用许可，阻塞直到满足速率限制
+        """
+        sleep_duration = 0
+        with self.lock:
+            now = time.monotonic()
+            sleep_duration = self.next_call_time - now
+            self.next_call_time = max(now, self.next_call_time) + self.interval
+        if sleep_duration > 0:
+            time.sleep(sleep_duration)
diff --git a/docs/mcp-api.md b/docs/mcp-api.md
index d96b849d..03622028 100644
--- a/docs/mcp-api.md
+++ b/docs/mcp-api.md
@@ -12,7 +12,7 @@ MoviePilot的智能体工具已通过HTTP API暴露，可以通过RESTful API调
 
 获取所有可用的MCP工具列表。
 
-**认证**: 需要API KEY，从 URL 查询参数中获取 `apikey=xxx`，或请求头中获取 `X-API-KEY`
+**认证**: 需要API KEY，在请求头中添加 `X-API-KEY: <api_key>` 或在查询参数中添加 `apikey=<api_key>`
 
 **响应示例**:
 ```json
@@ -46,7 +46,7 @@ MoviePilot的智能体工具已通过HTTP API暴露，可以通过RESTful API调
 
 调用指定的MCP工具。
 
-**认证**: 需要Bearer Token
+**认证**: 需要API KEY，在请求头中添加 `X-API-KEY: <api_key>` 或在查询参数中添加 `apikey=<api_key>`
 
 **请求体**:
 ```json
@@ -84,7 +84,7 @@ MoviePilot的智能体工具已通过HTTP API暴露，可以通过RESTful API调
 
 获取指定工具的详细信息。
 
-**认证**: 需要Bearer Token
+**认证**: 需要API KEY，在请求头中添加 `X-API-KEY: <api_key>` 或在查询参数中添加 `apikey=<api_key>`
 
 **路径参数**:
 - `tool_name`: 工具名称
@@ -114,7 +114,7 @@ MoviePilot的智能体工具已通过HTTP API暴露，可以通过RESTful API调
 
 获取指定工具的参数Schema（JSON Schema格式）。
 
-**认证**: 需要Bearer Token
+**认证**: 需要API KEY，在请求头中添加 `X-API-KEY: <api_key>` 或在查询参数中添加 `apikey=<api_key>`
 
 **路径参数**:
 - `tool_name`: 工具名称
@@ -138,128 +138,115 @@ MoviePilot的智能体工具已通过HTTP API暴露，可以通过RESTful API调
 }
 ```
 
-## 使用示例
+## MCP客户端配置
 
-### 使用curl调用工具
+MoviePilot的MCP工具可以通过HTTP协议在支持MCP的客户端中使用。以下是常见MCP客户端的配置方法：
 
-```bash
-# 1. 获取访问令牌（通过登录API）
-TOKEN=$(curl -X POST "http://localhost:3001/api/v1/login/access-token" \
-  -H "Content-Type: application/x-www-form-urlencoded" \
-  -d "username=admin&password=your_password" | jq -r '.access_token')
+### Claude Desktop (Anthropic)
 
-# 2. 列出所有工具
-curl -X GET "http://localhost:3001/api/v1/mcp/tools" \
-  -H "Authorization: Bearer $TOKEN"
+在Claude Desktop的配置文件中添加MoviePilot的MCP服务器配置：
 
-# 3. 调用工具
-curl -X POST "http://localhost:3001/api/v1/mcp/tools/call" \
-  -H "Authorization: Bearer $TOKEN" \
-  -H "Content-Type: application/json" \
-  -d '{
-    "tool_name": "query_subscribes",
-    "arguments": {
-      "status": "all",
-      "media_type": "all"
+**macOS**: `~/Library/Application Support/Claude/claude_desktop_config.json`  
+**Windows**: `%APPDATA%\Claude\claude_desktop_config.json`
+
+```json
+{
+  "mcpServers": {
+    "moviepilot": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "@modelcontextprotocol/server-http",
+        "http://localhost:3001/api/v1/mcp"
+      ],
+      "env": {
+        "X-API-KEY": "your_api_key_here"
+      }
     }
-  }'
-
-# 4. 获取工具详情
-curl -X GET "http://localhost:3001/api/v1/mcp/tools/add_subscribe" \
-  -H "Authorization: Bearer $TOKEN"
+  }
+}
 ```
 
-### 使用Python调用
+**注意**: 如果MCP HTTP服务器不支持环境变量传递API Key，可以使用查询参数方式：
 
-```python
-import requests
-
-# 配置
-BASE_URL = "http://localhost:3001/api/v1"
-TOKEN = "your_access_token"
-HEADERS = {"Authorization": f"Bearer {TOKEN}"}
-
-# 1. 列出所有工具
-response = requests.get(f"{BASE_URL}/mcp/tools", headers=HEADERS)
-tools = response.json()
-print(f"可用工具数量: {len(tools)}")
-
-# 2. 调用工具
-tool_call = {
-    "tool_name": "add_subscribe",
-    "arguments": {
-        "title": "流浪地球",
-        "year": "2019",
-        "media_type": "电影"
+```json
+{
+  "mcpServers": {
+    "moviepilot": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "@modelcontextprotocol/server-http",
+        "http://localhost:3001/api/v1/mcp?apikey=your_api_key_here"
+      ]
     }
+  }
 }
-response = requests.post(
-    f"{BASE_URL}/mcp/tools/call",
-    headers=HEADERS,
-    json=tool_call
-)
-result = response.json()
-print(f"执行结果: {result['result']}")
-
-# 3. 获取工具Schema
-response = requests.get(
-    f"{BASE_URL}/mcp/tools/add_subscribe/schema",
-    headers=HEADERS
-)
-schema = response.json()
-print(f"工具Schema: {schema}")
 ```
 
-### 使用JavaScript/TypeScript调用
+### 其他支持MCP的聊天客户端
 
-```typescript
-const BASE_URL = 'http://localhost:3001/api/v1';
-const TOKEN = 'your_access_token';
+对于其他支持MCP协议的聊天客户端（如其他AI聊天助手、对话机器人等），通常可以通过配置文件或设置界面添加HTTP协议的MCP服务器。配置格式可能因客户端而异，但通常需要以下信息：
 
-// 列出所有工具
-async function listTools() {
-  const response = await fetch(`${BASE_URL}/mcp/tools`, {
-    headers: {
-      'Authorization': `Bearer ${TOKEN}`
+**配置参数**：
+1. **服务器类型**: HTTP
+2. **服务器地址**: `http://your-moviepilot-host:3001/api/v1/mcp`
+3. **认证方式**: 
+   - 在HTTP请求头中添加 `X-API-KEY: <your_api_key>`
+   - 或在URL查询参数中添加 `apikey=<your_api_key>`
+
+**示例配置**（通用格式）：
+
+使用请求头方式：
+```json
+{
+  "mcpServers": {
+    "moviepilot": {
+      "url": "http://localhost:3001/api/v1/mcp",
+      "headers": {
+        "X-API-KEY": "your_api_key_here"
+      }
     }
-  });
-  return await response.json();
+  }
 }
-
-// 调用工具
-async function callTool(toolName: string, arguments: Record<string, any>) {
-  const response = await fetch(`${BASE_URL}/mcp/tools/call`, {
-    method: 'POST',
-    headers: {
-      'Authorization': `Bearer ${TOKEN}`,
-      'Content-Type': 'application/json'
-    },
-    body: JSON.stringify({
-      tool_name: toolName,
-      arguments: arguments
-    })
-  });
-  return await response.json();
-}
-
-// 使用示例
-const result = await callTool('query_subscribes', {
-  status: 'all',
-  media_type: 'all'
-});
-console.log(result);
 ```
 
+或使用查询参数方式：
+```json
+{
+  "mcpServers": {
+    "moviepilot": {
+      "url": "http://localhost:3001/api/v1/mcp?apikey=your_api_key_here"
+    }
+  }
+}
+```
+
+**支持的端点**:
+- `GET /tools` - 列出所有工具
+- `POST /tools/call` - 调用工具
+- `GET /tools/{tool_name}` - 获取工具详情
+- `GET /tools/{tool_name}/schema` - 获取工具参数Schema
+
+配置完成后，您就可以在聊天对话中使用MoviePilot的各种工具，例如：
+- 添加媒体订阅
+- 查询下载历史
+- 搜索媒体资源
+- 管理媒体服务器
+- 等等...
+
+### 获取API Key
+
+API Key可以在MoviePilot的系统设置中生成和查看。请妥善保管您的API Key，不要泄露给他人。
+
 ## 认证
 
-所有MCP API端点都需要认证。支持以下认证方式：
+所有MCP API端点都需要认证。**仅支持API Key认证方式**：
 
-1. **Bearer Token**: 在请求头中添加 `Authorization: Bearer <token>`
-2. **API Key**: 在请求头中添加 `X-API-KEY: <api_key>` 或在查询参数中添加 `apikey=<api_key>`
+- **请求头方式**: 在请求头中添加 `X-API-KEY: <api_key>`
+- **查询参数方式**: 在URL查询参数中添加 `apikey=<api_key>`
 
-获取Token的方式：
-- 通过登录API: `POST /api/v1/login/access-token`
-- 通过API Key: 在系统设置中生成API Key
+**获取API Key**: 在MoviePilot系统设置中生成和查看API Key。请妥善保管您的API Key，不要泄露给他人。
 
 ## 错误处理
 
@@ -267,7 +254,7 @@ API会返回标准的HTTP状态码：
 
 - `200 OK`: 请求成功
 - `400 Bad Request`: 请求参数错误
-- `401 Unauthorized`: 未认证或Token无效
+- `401 Unauthorized`: 未认证或API Key无效
 - `404 Not Found`: 工具不存在
 - `500 Internal Server Error`: 服务器内部错误
 
diff --git a/requirements.in b/requirements.in
index b10dd956..c8f56f38 100644
--- a/requirements.in
+++ b/requirements.in
@@ -80,11 +80,11 @@ pympler~=1.1
 smbprotocol~=1.15.0
 setproctitle~=1.3.6
 httpx[socks]~=0.28.1
-langchain==0.3.27
-langchain-core==0.3.76
-langchain-community==0.3.29
-langchain-openai==0.3.33
-langchain-google-genai==2.0.10
-langchain-deepseek==0.1.4
-langchain-experimental==0.3.4
-openai~=2.8.1
\ No newline at end of file
+langchain~=0.3.27
+langchain-core~=0.3.76
+langchain-community~=0.3.29
+langchain-openai~=0.3.33
+langchain-google-genai~=2.0.10
+langchain-deepseek~=0.1.4
+langchain-experimental~=0.3.4
+openai~=1.108.2
\ No newline at end of file
diff --git a/version.py b/version.py
index 6c859fc6..a4579fe9 100644
--- a/version.py
+++ b/version.py
@@ -1,2 +1,2 @@
-APP_VERSION = 'v2.8.3'
+APP_VERSION = 'v2.8.4'
 FRONTEND_VERSION = 'v2.8.3'