diff --git a/packages/frontend-embed/src/to-be-shared/post-message.ts b/packages/frontend-embed/src/post-message.ts
similarity index 93%
rename from packages/frontend-embed/src/to-be-shared/post-message.ts
rename to packages/frontend-embed/src/post-message.ts
index 44f020f7f9..fd8eb8a5d2 100644
--- a/packages/frontend-embed/src/to-be-shared/post-message.ts
+++ b/packages/frontend-embed/src/post-message.ts
@@ -4,7 +4,6 @@
  */
 
 export const postMessageEventTypes = [
-	'misskey:shareForm:shareCompleted',
 	'misskey:embed:ready',
 	'misskey:embed:changeHeight',
 ] as const;
@@ -12,7 +11,6 @@ export const postMessageEventTypes = [
 export type PostMessageEventType = typeof postMessageEventTypes[number];
 
 export interface PostMessageEventPayload extends Record<PostMessageEventType, any> {
-	'misskey:shareForm:shareCompleted': undefined;
 	'misskey:embed:ready': undefined;
 	'misskey:embed:changeHeight': {
 		height: number;
diff --git a/packages/frontend-embed/src/ui.vue b/packages/frontend-embed/src/ui.vue
index 7a7ffdb630..55fab898f2 100644
--- a/packages/frontend-embed/src/ui.vue
+++ b/packages/frontend-embed/src/ui.vue
@@ -25,9 +25,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import { ref, shallowRef, onMounted, onUnmounted, inject } from 'vue';
-import type { ParsedEmbedParams } from '@/scripts/embed-page.js';
-import { postMessageToParentWindow } from '@/scripts/post-message.js';
-import { defaultEmbedParams } from '@/scripts/embed-page.js';
+import type { ParsedEmbedParams } from '@/embed-page.js';
+import { postMessageToParentWindow } from '@/post-message.js';
+import { defaultEmbedParams } from '@/embed-page.js';
 
 const embedParams = inject<ParsedEmbedParams>('embedParams', defaultEmbedParams);
 
diff --git a/packages/frontend/src/scripts/post-message.ts b/packages/frontend/src/scripts/post-message.ts
index 44f020f7f9..6a0028960a 100644
--- a/packages/frontend/src/scripts/post-message.ts
+++ b/packages/frontend/src/scripts/post-message.ts
@@ -5,18 +5,12 @@
 
 export const postMessageEventTypes = [
 	'misskey:shareForm:shareCompleted',
-	'misskey:embed:ready',
-	'misskey:embed:changeHeight',
 ] as const;
 
 export type PostMessageEventType = typeof postMessageEventTypes[number];
 
 export interface PostMessageEventPayload extends Record<PostMessageEventType, any> {
 	'misskey:shareForm:shareCompleted': undefined;
-	'misskey:embed:ready': undefined;
-	'misskey:embed:changeHeight': {
-		height: number;
-	};
 }
 
 export type MiPostMessageEvent<T extends PostMessageEventType = PostMessageEventType> = {