diff --git a/frontend/src/components/workspace/chats/use-thread-chat.ts b/frontend/src/components/workspace/chats/use-thread-chat.ts
index b8943827..e2ac27c8 100644
--- a/frontend/src/components/workspace/chats/use-thread-chat.ts
+++ b/frontend/src/components/workspace/chats/use-thread-chat.ts
@@ -1,7 +1,7 @@
 "use client";
 
 import { useParams, usePathname, useSearchParams } from "next/navigation";
-import { useEffect, useMemo, useRef, useState } from "react";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 
 import { uuid } from "@/core/utils/uuid";
 
@@ -22,6 +22,22 @@ export interface ThreadChatResult {
   };
 }
 
+// postMessage 消息类型定义
+interface SelectedSkillMessage {
+  type: "selectedSkill";
+  id: number;
+  title: string;
+}
+
+function isSelectedSkillMessage(data: unknown): data is SelectedSkillMessage {
+  return (
+    typeof data === "object" &&
+    data !== null &&
+    (data as SelectedSkillMessage).type === "selectedSkill" &&
+    typeof (data as SelectedSkillMessage).id === "number"
+  );
+}
+
 export function useThreadChat(): ThreadChatResult {
   console.log("[useThreadChat] ========== HOOK CALLED ==========");
 
@@ -72,14 +88,14 @@ export function useThreadChat(): ThreadChatResult {
     return result;
   }, [searchParams]);
 
-  // [移植自 main 分支 ef9a071] 获取 skill 初始化参数
-  const skillBootstrap = useMemo(() => {
-    console.log("[useThreadChat] --- Parsing skillBootstrap params ---");
+  // [移植自 main 分支 ef9a071] 获取 skill 初始化参数 (从 URL)
+  const skillBootstrapFromUrl = useMemo(() => {
+    console.log("[useThreadChat] --- Parsing skillBootstrap params from URL ---");
     const skillIdRaw = searchParams.get("skill_id")?.trim();
     console.log("[useThreadChat] skill_id raw:", skillIdRaw);
 
     if (!skillIdRaw) {
-      console.log("[useThreadChat] skillBootstrap: undefined (no skill_id)");
+      console.log("[useThreadChat] skillBootstrapFromUrl: undefined (no skill_id)");
       return undefined;
     }
 
@@ -87,7 +103,7 @@ export function useThreadChat(): ThreadChatResult {
     console.log("[useThreadChat] contentId parsed:", contentId, "isFinite:", Number.isFinite(contentId));
 
     if (!Number.isFinite(contentId)) {
-      console.log("[useThreadChat] skillBootstrap: undefined (invalid contentId)");
+      console.log("[useThreadChat] skillBootstrapFromUrl: undefined (invalid contentId)");
       return undefined;
     }
 
@@ -104,10 +120,53 @@ export function useThreadChat(): ThreadChatResult {
       contentId,
       languageType: Number.isFinite(languageType) ? languageType : 0,
     };
-    console.log("[useThreadChat] skillBootstrap result:", result);
+    console.log("[useThreadChat] skillBootstrapFromUrl result:", result);
     return result;
   }, [searchParams]);
 
+  // [新增] postMessage 方式获取 skill 初始化参数
+  const [skillBootstrapFromPostMessage, setSkillBootstrapFromPostMessage] = useState<{
+    contentId: number;
+    languageType: number;
+  } | undefined>(undefined);
+
+  // [新增] 监听 postMessage 消息
+  useEffect(() => {
+    console.log("[useThreadChat] Setting up postMessage listener");
+
+    const handleMessage = (event: MessageEvent) => {
+      console.log("[useThreadChat] postMessage received:", event.data);
+
+      // 检查消息类型
+      if (!isSelectedSkillMessage(event.data)) {
+        console.log("[useThreadChat] postMessage ignored: not a selectedSkill message");
+        return;
+      }
+
+      const { id, title } = event.data;
+      console.log("[useThreadChat] selectedSkill message - id:", id, "title:", title);
+
+      // 设置 skillBootstrap
+      const newSkillBootstrap = {
+        contentId: id,
+        languageType: 0, // 默认语言类型
+      };
+      console.log("[useThreadChat] Setting skillBootstrap from postMessage:", newSkillBootstrap);
+      setSkillBootstrapFromPostMessage(newSkillBootstrap);
+    };
+
+    window.addEventListener("message", handleMessage);
+
+    return () => {
+      console.log("[useThreadChat] Cleaning up postMessage listener");
+      window.removeEventListener("message", handleMessage);
+    };
+  }, []);
+
+  // [新增] 合并 URL 和 postMessage 的 skillBootstrap (postMessage 优先)
+  const skillBootstrap = skillBootstrapFromPostMessage ?? skillBootstrapFromUrl;
+  console.log("[useThreadChat] skillBootstrap final:", skillBootstrap ? JSON.stringify(skillBootstrap) : undefined);
+
   // [修复] 使用 useRef 缓存生成的 threadId，避免 React StrictMode 下重复生成
   const threadIdRef = useRef<string | null>(null);
   const isNewThreadRef = useRef<boolean | null>(null);