add ai agent

app/agent/tools/impl/query_downloaders.py

@@ -0,0 +1,25 @@
+"""查询下载器工具"""
+
+import json
+
+from app.db.systemconfig_oper import SystemConfigOper
+from app.log import logger
+from app.schemas.types import SystemConfigKey
+from app.agent.tools.base import MoviePilotTool
+
+
+class QueryDownloadersTool(MoviePilotTool):
+    name: str = "query_downloaders"
+    description: str = "查询下载器配置，查看可用的下载器列表和配置信息。"
+
+    async def _arun(self, explanation: str) -> str:
+        logger.info(f"执行工具: {self.name}")
+        try:
+            system_config_oper = SystemConfigOper()
+            downloaders_config = system_config_oper.get(SystemConfigKey.Downloaders)
+            if downloaders_config:
+                return json.dumps(downloaders_config, ensure_ascii=False, indent=2)
+            return "未配置下载器。"
+        except Exception as e:
+            logger.error(f"查询下载器失败: {e}")
+            return f"查询下载器时发生错误: {str(e)}"