diff --git a/frontend/src/components/workspace/input-box.tsx b/frontend/src/components/workspace/input-box.tsx
index 7d9607aa..92b377be 100644
--- a/frontend/src/components/workspace/input-box.tsx
+++ b/frontend/src/components/workspace/input-box.tsx
@@ -59,7 +59,6 @@ import {
 import { useI18n } from "@/core/i18n/hooks";
 import { useModels } from "@/core/models/hooks";
 import type { AgentThreadContext } from "@/core/threads";
-import { useIframeSkill } from "@/hooks/use-iframe-skill";
 import { cn } from "@/lib/utils";
 
 import {
@@ -82,6 +81,79 @@ import {
 import { ModeHoverGuide } from "./mode-hover-guide";
 import { Tooltip } from "./tooltip";
 
+const POST_MESSAGE_TYPES = {
+  SELECT_SKILL: "selectSkill",
+  OPEN_SKILL_DIALOG: "openSkillDialog",
+} as const;
+
+const RECEIVE_MESSAGE_TYPES = {
+  SELECTED_SKILL: "selectedSkill",
+} as const;
+
+type IframeSelectedSkillMessage = {
+  type: typeof RECEIVE_MESSAGE_TYPES.SELECTED_SKILL;
+  id: string | number;
+  title: string;
+};
+
+type IframeSkillData = {
+  skill_id: string;
+  title: string;
+};
+
+function sendIframeMessageToParent(message: unknown): void {
+  if (window.parent !== window) {
+    window.parent.postMessage(message, "*");
+  }
+}
+
+function useEmbeddedIframeSkill() {
+  const searchParams = useSearchParams();
+  const skillIdFromQuery = searchParams.get("skill_id");
+  const titleFromQuery = searchParams.get("title");
+  const [selectedSkill, setSelectedSkill] = useState<IframeSkillData | null>(
+    null,
+  );
+
+  useEffect(() => {
+    if (skillIdFromQuery && titleFromQuery) {
+      setSelectedSkill({ skill_id: skillIdFromQuery, title: titleFromQuery });
+    }
+  }, [skillIdFromQuery, titleFromQuery]);
+
+  useEffect(() => {
+    const handleMessage = (event: MessageEvent) => {
+      if (event.data?.type === RECEIVE_MESSAGE_TYPES.SELECTED_SKILL) {
+        const { id, title } = event.data as IframeSelectedSkillMessage;
+        setSelectedSkill({ skill_id: String(id), title });
+      }
+    };
+    window.addEventListener("message", handleMessage);
+    return () => window.removeEventListener("message", handleMessage);
+  }, []);
+
+  const sendSelectSkill = useCallback((skill_id: string) => {
+    sendIframeMessageToParent({ type: POST_MESSAGE_TYPES.SELECT_SKILL, skill_id });
+  }, []);
+
+  const openSkillDialog = useCallback(() => {
+    sendIframeMessageToParent({
+      type: POST_MESSAGE_TYPES.OPEN_SKILL_DIALOG,
+      openSkillDialog: true,
+    });
+  }, []);
+
+  const clearSkill = useCallback(() => {
+    setSelectedSkill(null);
+    sendIframeMessageToParent({
+      type: POST_MESSAGE_TYPES.SELECT_SKILL,
+      skill_id: "0",
+    });
+  }, []);
+
+  return { selectedSkill, sendSelectSkill, openSkillDialog, clearSkill };
+}
+
 export function InputBox({
   className,
   disabled,
@@ -125,7 +197,7 @@ export function InputBox({
 }) {
   const { t } = useI18n();
   const searchParams = useSearchParams();
-  const iframeSkill = useIframeSkill();
+  const iframeSkill = useEmbeddedIframeSkill();
 
   const params = useParams();
   const threadId = threadIdProp ?? params?.thread_id;