diff --git a/server/service/posts/index.ts b/server/service/posts/index.ts
index 6b8481a..ba183ec 100644
--- a/server/service/posts/index.ts
+++ b/server/service/posts/index.ts
@@ -1,5 +1,6 @@
 import { dbGlobal } from "drizzle-pkg/lib/db";
-import { posts } from "drizzle-pkg/lib/schema/content";
+import { postMediaRefs, posts } from "drizzle-pkg/lib/schema/content";
+import { reconcileAssetTimestampsAfterRefChange, syncPostMediaRefs } from "#server/service/media";
 import { users } from "drizzle-pkg/lib/schema/auth";
 import { and, desc, eq } from "drizzle-orm";
 import { visibilitySchema, type Visibility } from "#server/constants/visibility";
@@ -61,6 +62,7 @@ export async function createPost(
     visibility: vis,
     shareToken,
   });
+  await syncPostMediaRefs(userId, id, input.bodyMarkdown, input.coverUrl ?? null);
   return getPostForUser(userId, id);
 }
 
@@ -105,6 +107,9 @@ export async function updatePost(
     })
     .where(and(eq(posts.id, id), eq(posts.userId, userId)));
 
+  const body = patch.bodyMarkdown !== undefined ? patch.bodyMarkdown : existing.bodyMarkdown;
+  const cover = patch.coverUrl !== undefined ? patch.coverUrl : existing.coverUrl;
+  await syncPostMediaRefs(userId, id, body, cover ?? null);
   return getPostForUser(userId, id);
 }
 
@@ -113,7 +118,13 @@ export async function deletePost(userId: number, id: number) {
   if (!existing) {
     return false;
   }
+  const refRows = await dbGlobal
+    .select({ assetId: postMediaRefs.assetId })
+    .from(postMediaRefs)
+    .where(eq(postMediaRefs.postId, id));
+  const touched = refRows.map((r) => r.assetId);
   await dbGlobal.delete(posts).where(and(eq(posts.id, id), eq(posts.userId, userId)));
+  await reconcileAssetTimestampsAfterRefChange(touched);
   return true;
 }