refine tool提示语为更简洁风格，补充last_buffer_char属性及非VERBOSE模式流式输出换行逻辑，新增工具流式分隔符单元测试

app/agent/callback/__init__.py

@@ -360,3 +360,11 @@ class StreamingHandler:
         是否已经通过流式输出发送过消息（当前轮次）
         """
         return self._message_response is not None
+
+    @property
+    def last_buffer_char(self) -> str:
+        """
+        返回当前缓冲区最后一个字符；缓冲区为空时返回空字符串。
+        """
+        with self._lock:
+            return self._buffer[-1:] if self._buffer else ""

app/agent/tools/base.py

@@ -81,7 +81,10 @@ class MoviePilotTool(BaseTool, metaclass=ABCMeta):
                     if messages:
                         merged_message = "\n\n".join(messages)
                         await self.send_tool_message(merged_message)
-            # 非VERBOSE：不重置流，保留已输出的模型思考文本
+            else:
+                # 非VERBOSE：工具边界至少补一个换行，避免工具前后的文本直接连在一起
+                if self._stream_handler.last_buffer_char not in ("", "\n"):
+                    self._stream_handler.emit("\n")
         else:
             # 未启用流式传输，不发送任何工具消息内容
             pass

app/agent/tools/impl/add_download.py

@@ -47,13 +47,13 @@ class AddDownloadTool(MoviePilotTool):
         if torrent_urls:
             if len(torrent_urls) == 1:
                 if self._is_torrent_ref(torrent_urls[0]):
-                    message = f"正在添加下载任务: 资源 {torrent_urls[0]}"
+                    message = f"添加下载任务: 资源 {torrent_urls[0]}"
                 else:
-                    message = "正在添加下载任务: 磁力链接"
+                    message = "添加下载任务: 磁力链接"
             else:
-                message = f"正在批量添加下载任务: 共 {len(torrent_urls)} 个资源"
+                message = f"批量添加下载任务: 共 {len(torrent_urls)} 个资源"
         else:
-            message = "正在添加下载任务"
+            message = "添加下载任务"
         if downloader:
             message += f" [下载器: {downloader}]"
 

app/agent/tools/impl/add_subscribe.py

@@ -89,7 +89,7 @@ class AddSubscribeTool(MoviePilotTool):
         media_type = kwargs.get("media_type", "")
         season = kwargs.get("season")
 
-        message = f"正在添加订阅: {title}"
+        message = f"添加订阅: {title}"
         if year:
             message += f" ({year})"
         if media_type:

app/agent/tools/impl/ask_user_choice.py

@@ -75,7 +75,7 @@ class AskUserChoiceTool(MoviePilotTool):
         message = kwargs.get("message", "") or ""
         if len(message) > 40:
             message = message[:40] + "..."
-        return f"正在发送按钮选择: {message}"
+        return f"发送按钮选择: {message}"
 
     @staticmethod
     def _truncate_button_text(text: str, max_length: int) -> str:

app/agent/tools/impl/browse_webpage.py

@@ -108,16 +108,16 @@ class BrowseWebpageTool(MoviePilotTool):
         url = kwargs.get("url", "")
         selector = kwargs.get("selector", "")
         action_messages = {
-            "goto": f"正在打开网页: {url}",
-            "get_content": "正在获取页面内容",
-            "screenshot": "正在截取页面截图",
-            "click": f"正在点击元素: {selector}",
-            "fill": f"正在填写表单: {selector}",
-            "select": f"正在选择选项: {selector}",
-            "evaluate": "正在执行 JavaScript",
-            "wait": f"正在等待元素: {selector}",
+            "goto": f"打开网页: {url}",
+            "get_content": "获取页面内容",
+            "screenshot": "截取页面截图",
+            "click": f"点击元素: {selector}",
+            "fill": f"填写表单: {selector}",
+            "select": f"选择选项: {selector}",
+            "evaluate": "执行 JavaScript",
+            "wait": f"等待元素: {selector}",
         }
-        return action_messages.get(action, f"正在执行浏览器操作: {action}")
+        return action_messages.get(action, f"执行浏览器操作: {action}")
 
     async def run(
         self,

app/agent/tools/impl/delete_download.py

@@ -41,7 +41,7 @@ class DeleteDownloadTool(MoviePilotTool):
         downloader = kwargs.get("downloader")
         delete_files = kwargs.get("delete_files", False)
 
-        message = f"正在删除下载任务: {hash_value}"
+        message = f"删除下载任务: {hash_value}"
         if downloader:
             message += f" [下载器: {downloader}]"
         if delete_files:

app/agent/tools/impl/delete_download_history.py

@@ -30,7 +30,7 @@ class DeleteDownloadHistoryTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         history_id = kwargs.get("history_id")
-        return f"正在删除下载历史记录 ID: {history_id}"
+        return f"删除下载历史记录 ID: {history_id}"
 
     async def run(self, history_id: int, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: history_id={history_id}")

app/agent/tools/impl/delete_subscribe.py

@@ -34,7 +34,7 @@ class DeleteSubscribeTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据删除参数生成友好的提示消息"""
         subscribe_id = kwargs.get("subscribe_id")
-        return f"正在删除订阅 (ID: {subscribe_id})"
+        return f"删除订阅 (ID: {subscribe_id})"
 
     async def run(self, subscribe_id: int, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: subscribe_id={subscribe_id}")

app/agent/tools/impl/delete_transfer_history.py

@@ -30,7 +30,7 @@ class DeleteTransferHistoryTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据参数生成友好的提示消息"""
         history_id = kwargs.get("history_id")
-        return f"正在删除整理历史记录: ID={history_id}"
+        return f"删除整理历史记录: ID={history_id}"
 
     async def run(self, history_id: int, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: history_id={history_id}")

app/agent/tools/impl/edit_file.py

@@ -28,7 +28,7 @@ class EditFileTool(MoviePilotTool):
         """根据参数生成友好的提示消息"""
         file_path = kwargs.get("file_path", "")
         file_name = Path(file_path).name if file_path else "未知文件"
-        return f"正在编辑文件: {file_name}"
+        return f"编辑文件: {file_name}"
 
     async def run(self, file_path: str, old_text: str, new_text: str, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: file_path={file_path}")

app/agent/tools/impl/execute_command.py

@@ -30,7 +30,7 @@ class ExecuteCommandTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据命令生成友好的提示消息"""
         command = kwargs.get("command", "")
-        return f"正在执行系统命令: {command}"
+        return f"执行系统命令: {command}"
 
     async def run(self, command: str, timeout: Optional[int] = 60, **kwargs) -> str:
         logger.info(

app/agent/tools/impl/get_recommendations.py

@@ -62,7 +62,7 @@ class GetRecommendationsTool(MoviePilotTool):
             "douban_hot": "豆瓣热门",
             "douban_movie_hot": "豆瓣热门电影",
             "douban_tv_hot": "豆瓣热门电视剧",
-            "douban_movie_showing": "豆瓣正在热映",
+            "douban_movie_showing": "豆瓣热映",
             "douban_movies": "豆瓣最新电影",
             "douban_tvs": "豆瓣最新电视剧",
             "douban_movie_top250": "豆瓣电影TOP250",
@@ -73,7 +73,7 @@ class GetRecommendationsTool(MoviePilotTool):
         }
         source_desc = source_map.get(source, source)
 
-        message = f"正在获取推荐: {source_desc}"
+        message = f"获取推荐: {source_desc}"
         if media_type != "all":
             message += f" [{media_type}]"
         message += f" (第{page}页)"

app/agent/tools/impl/get_search_results.py

@@ -53,7 +53,7 @@ class GetSearchResultsTool(MoviePilotTool):
     args_schema: Type[BaseModel] = GetSearchResultsInput
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
-        return "正在获取搜索结果"
+        return "获取搜索结果"
 
     async def run(
         self,

app/agent/tools/impl/list_directory.py

@@ -32,7 +32,7 @@ class ListDirectoryTool(MoviePilotTool):
         path = kwargs.get("path", "")
         storage = kwargs.get("storage", "local")
         
-        message = f"正在查询目录: {path}"
+        message = f"查询目录: {path}"
         if storage != "local":
             message += f" [存储: {storage}]"
         

app/agent/tools/impl/list_slash_commands.py

@@ -33,7 +33,7 @@ class ListSlashCommandsTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
-        return "正在查询所有可用命令"
+        return "查询所有可用命令"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/modify_download.py

@@ -55,7 +55,7 @@ class ModifyDownloadTool(MoviePilotTool):
         tags = kwargs.get("tags")
         downloader = kwargs.get("downloader")
 
-        parts = [f"正在修改下载任务: {hash_value}"]
+        parts = [f"修改下载任务: {hash_value}"]
         if action == "start":
             parts.append("操作: 开始下载")
         elif action == "stop":

app/agent/tools/impl/query_custom_identifiers.py

@@ -31,7 +31,7 @@ class QueryCustomIdentifiersTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
-        return "正在查询自定义识别词"
+        return "查询自定义识别词"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/query_directory_settings.py

@@ -32,7 +32,7 @@ class QueryDirectorySettingsTool(MoviePilotTool):
         storage_type = kwargs.get("storage_type", "all")
         name = kwargs.get("name")
         
-        parts = ["正在查询目录配置"]
+        parts = ["查询目录配置"]
         
         if directory_type != "all":
             type_map = {"download": "下载目录", "library": "媒体库目录"}

app/agent/tools/impl/query_download_tasks.py

@@ -36,7 +36,7 @@ class QueryDownloadTasksTool(MoviePilotTool):
         查询所有状态的任务（包括下载中和已完成的任务）
         """
         all_torrents = []
-        # 查询正在下载的任务
+        # 查询下载的任务
         downloading_torrents = download_chain.list_torrents(
             downloader=downloader, 
             status=TorrentStatus.DOWNLOADING
@@ -71,7 +71,7 @@ class QueryDownloadTasksTool(MoviePilotTool):
         hash_value = kwargs.get("hash")
         title = kwargs.get("title")
         
-        parts = ["正在查询下载任务"]
+        parts = ["查询下载任务"]
         
         if downloader:
             parts.append(f"下载器: {downloader}")

app/agent/tools/impl/query_downloaders.py

@@ -23,7 +23,7 @@ class QueryDownloadersTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
-        return "正在查询下载器配置"
+        return "查询下载器配置"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/query_episode_schedule.py

@@ -29,7 +29,7 @@ class QueryEpisodeScheduleTool(MoviePilotTool):
         season = kwargs.get("season")
         episode_group = kwargs.get("episode_group")
 
-        message = f"正在查询剧集上映时间: TMDB ID {tmdb_id} 第{season}季"
+        message = f"查询剧集上映时间: TMDB ID {tmdb_id} 第{season}季"
         if episode_group:
             message += f" (剧集组: {episode_group})"
 

app/agent/tools/impl/query_installed_plugins.py

@@ -31,7 +31,7 @@ class QueryInstalledPluginsTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
-        return "正在查询已安装插件"
+        return "查询已安装插件"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/query_library_exists.py

@@ -93,11 +93,11 @@ class QueryLibraryExistsTool(MoviePilotTool):
         media_type = kwargs.get("media_type")
 
         if tmdb_id:
-            message = f"正在查询媒体库: TMDB={tmdb_id}"
+            message = f"查询媒体库: TMDB={tmdb_id}"
         elif douban_id:
-            message = f"正在查询媒体库: 豆瓣={douban_id}"
+            message = f"查询媒体库: 豆瓣={douban_id}"
         else:
-            message = "正在查询媒体库"
+            message = "查询媒体库"
         if media_type:
             message += f" [{media_type}]"
         return message

app/agent/tools/impl/query_library_latest.py

@@ -39,7 +39,7 @@ class QueryLibraryLatestTool(MoviePilotTool):
         server = kwargs.get("server")
         page = kwargs.get("page", 1)
 
-        parts = ["正在查询媒体服务器最近入库影片"]
+        parts = ["查询媒体服务器最近入库影片"]
 
         if server:
             parts.append(f"服务器: {server}")

app/agent/tools/impl/query_media_detail.py

@@ -29,8 +29,8 @@ class QueryMediaDetailTool(MoviePilotTool):
         tmdb_id = kwargs.get("tmdb_id")
         douban_id = kwargs.get("douban_id")
         if tmdb_id:
-            return f"正在查询媒体详情: TMDB ID {tmdb_id}"
-        return f"正在查询媒体详情: 豆瓣 ID {douban_id}"
+            return f"查询媒体详情: TMDB ID {tmdb_id}"
+        return f"查询媒体详情: 豆瓣 ID {douban_id}"
 
     async def run(self, media_type: str, tmdb_id: Optional[int] = None, douban_id: Optional[str] = None, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: tmdb_id={tmdb_id}, douban_id={douban_id}, media_type={media_type}")

app/agent/tools/impl/query_plugin_capabilities.py

@@ -40,8 +40,8 @@ class QueryPluginCapabilitiesTool(MoviePilotTool):
         """生成友好的提示消息"""
         plugin_id = kwargs.get("plugin_id")
         if plugin_id:
-            return f"正在查询插件 {plugin_id} 的能力"
-        return "正在查询所有插件的能力"
+            return f"查询插件 {plugin_id} 的能力"
+        return "查询所有插件的能力"
 
     async def run(self, plugin_id: Optional[str] = None, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: plugin_id={plugin_id}")

app/agent/tools/impl/query_popular_subscribes.py

@@ -39,7 +39,7 @@ class QueryPopularSubscribesTool(MoviePilotTool):
         min_rating = kwargs.get("min_rating")
         max_rating = kwargs.get("max_rating")
         
-        parts = [f"正在查询热门订阅 [{media_type}]"]
+        parts = [f"查询热门订阅 [{media_type}]"]
         
         if min_sub:
             parts.append(f"最少订阅: {min_sub}")

app/agent/tools/impl/query_rule_groups.py

@@ -22,7 +22,7 @@ class QueryRuleGroupsTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据查询参数生成友好的提示消息"""
-        return "正在查询所有规则组"
+        return "查询所有规则组"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/query_schedulers.py

@@ -22,7 +22,7 @@ class QuerySchedulersTool(MoviePilotTool):
 
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
-        return "正在查询定时服务"
+        return "查询定时服务"
 
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")

app/agent/tools/impl/query_site_userdata.py

@@ -40,7 +40,7 @@ class QuerySiteUserdataTool(MoviePilotTool):
         site_id = kwargs.get("site_id")
         workdate = kwargs.get("workdate")
 
-        message = f"正在查询站点 #{site_id} 的用户数据"
+        message = f"查询站点 #{site_id} 的用户数据"
         if workdate:
             message += f" (日期: {workdate})"
         else:

app/agent/tools/impl/query_sites.py

@@ -37,7 +37,7 @@ class QuerySitesTool(MoviePilotTool):
         status = kwargs.get("status", "all")
         name = kwargs.get("name")
 
-        parts = ["正在查询站点"]
+        parts = ["查询站点"]
 
         if status != "all":
             status_map = {"active": "已启用", "inactive": "已禁用"}

app/agent/tools/impl/query_subscribe_history.py

@@ -44,7 +44,7 @@ class QuerySubscribeHistoryTool(MoviePilotTool):
         name = kwargs.get("name")
         page = kwargs.get("page", 1)
 
-        parts = ["正在查询订阅历史"]
+        parts = ["查询订阅历史"]
 
         if media_type != "all":
             parts.append(f"类型: {media_type}")

app/agent/tools/impl/query_subscribe_shares.py

@@ -34,7 +34,7 @@ class QuerySubscribeSharesTool(MoviePilotTool):
         min_rating = kwargs.get("min_rating")
         max_rating = kwargs.get("max_rating")
         
-        parts = ["正在查询订阅分享"]
+        parts = ["查询订阅分享"]
         
         if name:
             parts.append(f"名称: {name}")

app/agent/tools/impl/query_subscribes.py

@@ -79,7 +79,7 @@ class QuerySubscribesTool(MoviePilotTool):
         media_type = kwargs.get("media_type", "all")
         page = kwargs.get("page", 1)
 
-        parts = ["正在查询订阅"]
+        parts = ["查询订阅"]
 
         # 根据状态过滤条件生成提示
         if status != "all":

app/agent/tools/impl/query_transfer_history.py

@@ -33,7 +33,7 @@ class QueryTransferHistoryTool(MoviePilotTool):
         status = kwargs.get("status", "all")
         page = kwargs.get("page", 1)
 
-        parts = ["正在查询整理历史"]
+        parts = ["查询整理历史"]
 
         if title:
             parts.append(f"标题: {title}")

app/agent/tools/impl/query_workflows.py

@@ -30,7 +30,7 @@ class QueryWorkflowsTool(MoviePilotTool):
         name = kwargs.get("name")
         trigger_type = kwargs.get("trigger_type", "all")
         
-        parts = ["正在查询工作流"]
+        parts = ["查询工作流"]
         
         if state != "all":
             state_map = {"W": "等待", "R": "运行中", "P": "暂停", "S": "成功", "F": "失败"}

app/agent/tools/impl/read_file.py

@@ -29,7 +29,7 @@ class ReadFileTool(MoviePilotTool):
         """根据参数生成友好的提示消息"""
         file_path = kwargs.get("file_path", "")
         file_name = Path(file_path).name if file_path else "未知文件"
-        return f"正在读取文件: {file_name}"
+        return f"读取文件: {file_name}"
 
     async def run(self, file_path: str, start_line: Optional[int] = None,
                   end_line: Optional[int] = None, **kwargs) -> str:

app/agent/tools/impl/recognize_media.py

@@ -33,13 +33,13 @@ class RecognizeMediaTool(MoviePilotTool):
         path = kwargs.get("path")
         
         if path:
-            message = f"正在识别文件媒体信息: {path}"
+            message = f"识别文件媒体信息: {path}"
         elif title:
-            message = f"正在识别种子媒体信息: {title}"
+            message = f"识别种子媒体信息: {title}"
             if subtitle:
                 message += f" ({subtitle})"
         else:
-            message = "正在识别媒体信息"
+            message = "识别媒体信息"
         
         return message
 

app/agent/tools/impl/run_scheduler.py

@@ -31,7 +31,7 @@ class RunSchedulerTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据运行参数生成友好的提示消息"""
         job_id = kwargs.get("job_id", "")
-        return f"正在运行定时服务 (ID: {job_id})"
+        return f"运行定时服务 (ID: {job_id})"
 
     async def run(self, job_id: str, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: job_id={job_id}")

app/agent/tools/impl/run_slash_command.py

@@ -45,7 +45,7 @@ class RunSlashCommandTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
         command = kwargs.get("command", "")
-        return f"正在执行命令: {command}"
+        return f"执行命令: {command}"
 
     async def run(self, command: str, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: command={command}")

app/agent/tools/impl/run_workflow.py

@@ -38,7 +38,7 @@ class RunWorkflowTool(MoviePilotTool):
         workflow_id = kwargs.get("workflow_id")
         from_begin = kwargs.get("from_begin", True)
 
-        message = f"正在执行工作流: {workflow_id}"
+        message = f"执行工作流: {workflow_id}"
         if not from_begin:
             message += " (从上次位置继续)"
         else:

app/agent/tools/impl/scrape_metadata.py

@@ -47,7 +47,7 @@ class ScrapeMetadataTool(MoviePilotTool):
         storage = kwargs.get("storage", "local")
         overwrite = kwargs.get("overwrite", False)
 
-        message = f"正在刮削媒体元数据: {path}"
+        message = f"刮削媒体元数据: {path}"
         if storage != "local":
             message += f" [存储: {storage}]"
         if overwrite:

app/agent/tools/impl/search_media.py

@@ -34,7 +34,7 @@ class SearchMediaTool(MoviePilotTool):
         media_type = kwargs.get("media_type")
         season = kwargs.get("season")
         
-        message = f"正在搜索媒体: {title}"
+        message = f"搜索媒体: {title}"
         if year:
             message += f" ({year})"
         if media_type:

app/agent/tools/impl/search_person.py

@@ -24,7 +24,7 @@ class SearchPersonTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据搜索参数生成友好的提示消息"""
         name = kwargs.get("name", "")
-        return f"正在搜索人物: {name}"
+        return f"搜索人物: {name}"
 
     async def run(self, name: str, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: name={name}")

app/agent/tools/impl/search_person_credits.py

@@ -29,7 +29,7 @@ class SearchPersonCreditsTool(MoviePilotTool):
         """根据搜索参数生成友好的提示消息"""
         person_id = kwargs.get("person_id", "")
         source = kwargs.get("source", "")
-        return f"正在搜索人物参演作品: {source} ID {person_id}"
+        return f"搜索人物参演作品: {source} ID {person_id}"
 
     async def run(self, person_id: int, source: str, page: Optional[int] = 1, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: person_id={person_id}, source={source}, page={page}")

app/agent/tools/impl/search_subscribe.py

@@ -32,7 +32,7 @@ class SearchSubscribeTool(MoviePilotTool):
         subscribe_id = kwargs.get("subscribe_id")
         manual = kwargs.get("manual", False)
 
-        message = f"正在搜索订阅 #{subscribe_id} 的缺失剧集"
+        message = f"搜索订阅 #{subscribe_id} 的缺失剧集"
         if manual:
             message += "（手动搜索）"
 

app/agent/tools/impl/search_torrents.py

@@ -41,11 +41,11 @@ class SearchTorrentsTool(MoviePilotTool):
         media_type = kwargs.get("media_type")
 
         if tmdb_id:
-            message = f"正在搜索种子: TMDB={tmdb_id}"
+            message = f"搜索种子: TMDB={tmdb_id}"
         elif douban_id:
-            message = f"正在搜索种子: 豆瓣={douban_id}"
+            message = f"搜索种子: 豆瓣={douban_id}"
         else:
-            message = "正在搜索种子"
+            message = "搜索种子"
         if media_type:
             message += f" [{media_type}]"
         return message

app/agent/tools/impl/search_web.py

@@ -41,7 +41,7 @@ class SearchWebTool(MoviePilotTool):
         """根据搜索参数生成友好的提示消息"""
         query = kwargs.get("query", "")
         max_results = kwargs.get("max_results", 20)
-        return f"正在搜索网络内容: {query} (最多返回 {max_results} 条结果)"
+        return f"搜索网络内容: {query} (最多返回 {max_results} 条结果)"
 
     async def run(self, query: str, max_results: Optional[int] = 20, **kwargs) -> str:
         """

app/agent/tools/impl/send_local_file.py

@@ -55,7 +55,7 @@ class SendLocalFileTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         file_path = kwargs.get("file_path", "")
         file_name = Path(file_path).name if file_path else "未知文件"
-        return f"正在发送本地附件: {file_name}"
+        return f"发送本地附件: {file_name}"
 
     async def run(
         self,

app/agent/tools/impl/send_message.py

@@ -52,12 +52,12 @@ class SendMessageTool(MoviePilotTool):
             message = message[:50] + "..."
 
         if title and image_url:
-            return f"正在发送图文消息: [{title}] {message}"
+            return f"发送图文消息: [{title}] {message}"
         if title:
-            return f"正在发送消息: [{title}] {message}"
+            return f"发送消息: [{title}] {message}"
         if image_url:
-            return f"正在发送图片消息: {message}"
-        return f"正在发送消息: {message}"
+            return f"发送图片消息: {message}"
+        return f"发送消息: {message}"
 
     async def run(
         self,

app/agent/tools/impl/send_voice_message.py

@@ -41,7 +41,7 @@ class SendVoiceMessageTool(MoviePilotTool):
         message = kwargs.get("message") or ""
         if len(message) > 40:
             message = message[:40] + "..."
-        return f"正在发送语音回复: {message}"
+        return f"发送语音回复: {message}"
 
     def _supports_real_voice_reply(self) -> bool:
         channel = self._channel or ""

app/agent/tools/impl/test_site.py

@@ -24,7 +24,7 @@ class TestSiteTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """根据测试参数生成友好的提示消息"""
         site_identifier = kwargs.get("site_identifier")
-        return f"正在测试站点连通性: {site_identifier}"
+        return f"测试站点连通性: {site_identifier}"
 
     async def run(self, site_identifier: int, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: site_identifier={site_identifier}")

app/agent/tools/impl/transfer_file.py

@@ -68,7 +68,7 @@ class TransferFileTool(MoviePilotTool):
         transfer_type = kwargs.get("transfer_type")
         background = kwargs.get("background", False)
 
-        message = f"正在整理文件: {file_path}"
+        message = f"整理文件: {file_path}"
         if media_type:
             message += f" [{media_type}]"
         if transfer_type:

app/agent/tools/impl/update_custom_identifiers.py

@@ -57,7 +57,7 @@ class UpdateCustomIdentifiersTool(MoviePilotTool):
     def get_tool_message(self, **kwargs) -> Optional[str]:
         """生成友好的提示消息"""
         identifiers = kwargs.get("identifiers", [])
-        return f"正在更新自定义识别词（共 {len(identifiers)} 条规则）"
+        return f"更新自定义识别词（共 {len(identifiers)} 条规则）"
 
     async def run(self, identifiers: List[str] = None, **kwargs) -> str:
         logger.info(

app/agent/tools/impl/update_site.py

@@ -95,8 +95,8 @@ class UpdateSiteTool(MoviePilotTool):
             fields_updated.append("下载器")
 
         if fields_updated:
-            return f"正在更新站点 #{site_id}: {', '.join(fields_updated)}"
-        return f"正在更新站点 #{site_id}"
+            return f"更新站点 #{site_id}: {', '.join(fields_updated)}"
+        return f"更新站点 #{site_id}"
 
     async def run(
         self,

app/agent/tools/impl/update_site_cookie.py

@@ -41,7 +41,7 @@ class UpdateSiteCookieTool(MoviePilotTool):
         username = kwargs.get("username", "")
         two_step_code = kwargs.get("two_step_code")
 
-        message = f"正在更新站点Cookie: {site_identifier} (用户: {username})"
+        message = f"更新站点Cookie: {site_identifier} (用户: {username})"
         if two_step_code:
             message += " [需要两步验证]"
 

app/agent/tools/impl/update_subscribe.py

@@ -117,8 +117,8 @@ class UpdateSubscribeTool(MoviePilotTool):
             fields_updated.append("下载器")
 
         if fields_updated:
-            return f"正在更新订阅 #{subscribe_id}: {', '.join(fields_updated)}"
-        return f"正在更新订阅 #{subscribe_id}"
+            return f"更新订阅 #{subscribe_id}: {', '.join(fields_updated)}"
+        return f"更新订阅 #{subscribe_id}"
 
     async def run(
         self,

app/agent/tools/impl/write_file.py

@@ -27,7 +27,7 @@ class WriteFileTool(MoviePilotTool):
         """根据参数生成友好的提示消息"""
         file_path = kwargs.get("file_path", "")
         file_name = Path(file_path).name if file_path else "未知文件"
-        return f"正在写入文件: {file_name}"
+        return f"写入文件: {file_name}"
 
     async def run(self, file_path: str, content: str, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}, 参数: file_path={file_path}")

tests/test_agent_tool_streaming.py

@@ -0,0 +1,53 @@
+import asyncio
+import unittest
+from unittest.mock import patch
+
+from app.agent.callback import StreamingHandler
+from app.agent.tools.base import MoviePilotTool
+from app.core.config import settings
+
+
+class DummyTool(MoviePilotTool):
+    name: str = "dummy_tool"
+    description: str = "Dummy tool for streaming tests."
+
+    async def run(self, **kwargs) -> str:
+        return "ok"
+
+
+class TestAgentToolStreaming(unittest.TestCase):
+    async def _run_tool(self, initial_buffer: str) -> tuple[str, str]:
+        tool = DummyTool(session_id="session-1", user_id="10001")
+        handler = StreamingHandler()
+        await handler.start_streaming()
+        if initial_buffer:
+            handler.emit(initial_buffer)
+        tool.set_stream_handler(handler)
+
+        with patch.object(settings, "AI_AGENT_VERBOSE", False):
+            result = await tool._arun(explanation="run test tool")
+
+        buffered_message = await handler.take()
+        return result, buffered_message
+
+    def test_non_verbose_tool_call_appends_newline_separator(self):
+        result, buffered_message = asyncio.run(self._run_tool("prefix"))
+
+        self.assertEqual(result, "ok")
+        self.assertEqual(buffered_message, "prefix\n")
+
+    def test_non_verbose_tool_call_does_not_duplicate_newline(self):
+        result, buffered_message = asyncio.run(self._run_tool("prefix\n"))
+
+        self.assertEqual(result, "ok")
+        self.assertEqual(buffered_message, "prefix\n")
+
+    def test_non_verbose_tool_call_keeps_empty_buffer_unchanged(self):
+        result, buffered_message = asyncio.run(self._run_tool(""))
+
+        self.assertEqual(result, "ok")
+        self.assertEqual(buffered_message, "")
+
+
+if __name__ == "__main__":
+    unittest.main()