diff --git a/notebooks/sample.ipynb b/notebooks/sample.ipynb
deleted file mode 100644
index e8a85f2..0000000
--- a/notebooks/sample.ipynb
+++ /dev/null
@@ -1,108 +0,0 @@
-{
- "cells": [
-  {
-   "metadata": {},
-   "cell_type": "raw",
-   "source": "1.开始",
-   "id": "e69a816f955ad467"
-  },
-  {
-   "metadata": {
-    "ExecuteTime": {
-     "end_time": "2025-09-30T01:42:53.631350Z",
-     "start_time": "2025-09-30T01:42:53.622345Z"
-    }
-   },
-   "cell_type": "code",
-   "source": [
-    "import os\n",
-    "from dotenv import load_dotenv  # 强制依赖 python-dotenv\n",
-    "\n",
-    "# 加载 .env 文件中的配置（如果文件不存在或加载失败会报错）\n",
-    "load_dotenv(override=True)  # override=True 确保覆盖系统中已有的同名环境变量\n",
-    "\n",
-    "# 从 .env 文件中读取配置，若不存在则直接抛出异常\n",
-    "required_vars = [\n",
-    "    \"LANGSMITH_TRACING\",\n",
-    "    \"LANGSMITH_API_KEY\",\n",
-    "    \"LANGSMITH_PROJECT\"\n",
-    "]\n",
-    "\n",
-    "# 检查必要的配置项是否存在\n",
-    "missing_vars = [var for var in required_vars if var not in os.environ]\n",
-    "if missing_vars:\n",
-    "    raise ValueError(\n",
-    "        f\".env 文件中缺少必要的配置项：{', '.join(missing_vars)}\\n\"\n",
-    "        \"请确保 .env 文件中包含以下配置：\\n\"\n",
-    "        \"LANGSMITH_TRACING=true\\n\"\n",
-    "        \"LANGSMITH_API_KEY=你的API密钥\\n\"\n",
-    "        \"LANGSMITH_PROJECT=你的项目名（默认可填default）\"\n",
-    "    )\n",
-    "print(\"配置检查通过\")\n",
-    "# 输出\n",
-    "print(f\"LANGSMITH_TRACING: {os.environ['LANGSMITH_TRACING']}\")\n",
-    "\n",
-    "# 验证 LANGSMITH_TRACING 必须为 true（保持原逻辑的强制开启）\n",
-    "if os.environ[\"LANGSMITH_TRACING\"].lower() != \"true\":\n",
-    "    raise ValueError(\"LANGSMITH_TRACING 必须设置为 true（区分大小写，建议直接填写true）\")"
-   ],
-   "id": "f55903969ee7b754",
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "配置检查通过\n",
-      "LANGSMITH_TRACING: true\n"
-     ]
-    }
-   ],
-   "execution_count": 6
-  },
-  {
-   "metadata": {},
-   "cell_type": "markdown",
-   "source": "2.三四十",
-   "id": "42e3303c7c697d34"
-  },
-  {
-   "metadata": {},
-   "cell_type": "code",
-   "outputs": [],
-   "execution_count": null,
-   "source": [
-    "import getpass\n",
-    "import os\n",
-    "\n",
-    "if not os.environ.get(\"OPENAI_API_KEY\"):\n",
-    "  os.environ[\"OPENAI_API_KEY\"] = getpass.getpass(\"Enter API key for OpenAI: \")\n",
-    "\n",
-    "from langchain.chat_models import init_chat_model\n",
-    "\n",
-    "model = init_chat_model(\"gpt-4o-mini\", model_provider=\"openai\")"
-   ],
-   "id": "d9c653b7f628c02f"
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 2
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
-   "version": "2.7.6"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}