diff --git a/bun.lockb b/bun.lockb
index 310cd66..0a0ec24 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 1a87a4d..da81dac 100644
--- a/package.json
+++ b/package.json
@@ -28,19 +28,19 @@
     "husky": "^9.1.6",
     "lint-staged": "^15.2.10",
     "prettier": "^3.3.3",
-    "typescript-eslint": "^8.8.1"
+    "typescript-eslint": "^8.9.0"
   },
   "peerDependencies": {
     "typescript": "^5.5.4"
   },
   "dependencies": {
-    "@dotenvx/dotenvx": "^1.19.0",
+    "@dotenvx/dotenvx": "^1.19.2",
     "@egg/hooks": "^1.2.0",
-    "@egg/lark-msg-tool": "^1.7.4",
+    "@egg/lark-msg-tool": "^1.8.0",
     "@egg/logger": "^1.4.4",
     "@egg/net-tool": "^1.9.2",
     "@egg/path-tool": "^1.4.1",
-    "@langchain/core": "^0.3.10",
+    "@langchain/core": "^0.3.11",
     "@langchain/openai": "^0.3.7",
     "joi": "^17.13.3",
     "langfuse-langchain": "^3.27.0",
diff --git a/routes/bot/groupAgent/chatHistory.ts b/routes/bot/groupAgent/chatHistory.ts
index 4e4156b..beadfad 100644
--- a/routes/bot/groupAgent/chatHistory.ts
+++ b/routes/bot/groupAgent/chatHistory.ts
@@ -9,6 +9,11 @@ interface Message {
   time: string
 }
 
+/**
+ * 提取 JSON 数据中的文本内容
+ * @param data - JSON 数据
+ * @returns 提取的文本内容
+ */
 const extractTextFromJson = (data: any): string => {
   let result = ""
 
@@ -31,6 +36,11 @@ const extractTextFromJson = (data: any): string => {
   return result
 }
 
+/**
+ * 获取聊天历史记录
+ * @param context - 上下文数据
+ * @returns 聊天消息数组
+ */
 const getChatHistory = async ({
   larkService,
   larkBody: {
@@ -100,6 +110,11 @@ const getChatHistory = async ({
 
   const messages: Message[] = []
 
+  /**
+   * 获取文本消息内容
+   * @param chat - 聊天消息数据
+   * @returns 文本消息内容
+   */
   const getText = (chat: LarkServer.MessageData) => {
     let { text } = parseJsonString(chat.body.content, { text: "" }) as {
       text: string
@@ -119,13 +134,22 @@ const getChatHistory = async ({
     return text.replace(/<[^>]+>/g, "")
   }
 
+  /**
+   * 获取 post 消息内容
+   * @param chat - 聊天消息数据
+   * @returns post 消息内容
+   */
   const getPost = (chat: LarkServer.MessageData) => {
     const content = parseJsonString(chat.body.content, null)
     if (!content) return ""
     return extractTextFromJson(content)
   }
 
+  // 构建消息数组
   for (const chat of filteredMsg) {
+    // 过滤掉机器人消息
+    const user = mentions.get(chat.sender.id)
+    if (!user) continue
     messages.push({
       user: mentions.get(chat.sender.id)!,
       content: chat.msg_type === "text" ? getText(chat) : getPost(chat),