diff --git a/README.md b/README.md
index b0a845e..8633eff 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Pearcord desktop UI IPC dispatch and automated flow scenarios for Bare smokes. Mirrors `apps/pearcord` pear-pipe message handling.
 
+**Phase 680 (v0.8.655):** `announcement-follow-changed`, `retry-announcement-crosspost` IPC + composer blur sidecar. Bundle: `npm run test:ci-phase680`.
+
 **Phase 679 (v0.8.654):** `thread-modal-open` → `thread-modal-opened`; `create-thread` passes `autoArchiveMinutes`. Bundle: `npm run test:ci-phase679`.
 
 **Phase 668 (v0.8.643):** IPC `composer-embed-prefetch` → platform `prefetchComposerEmbed`; `composer-embed-preview-clear` → `clearComposerEmbedPreview`. Bundle: `npm run test:ci-phase668`.
diff --git a/index.js b/index.js
index a6e958b..b402ced 100644
--- a/index.js
+++ b/index.js
@@ -640,11 +640,18 @@ async function dispatchUiMessage (platform, msg, hooks = {}) {
   if (t === 'follow-announcement') {
     await platform.followAnnouncementChannel(msg.channelId)
     pushState()
+    send({ type: 'announcement-follow-changed', channelId: msg.channelId, following: true })
     return true
   }
   if (t === 'unfollow-announcement') {
     await platform.unfollowAnnouncementChannel(msg.channelId)
     pushState()
+    send({ type: 'announcement-follow-changed', channelId: msg.channelId, following: false })
+    return true
+  }
+  if (t === 'retry-announcement-crosspost') {
+    await platform.retryAnnouncementCrosspost(msg.messageId)
+    pushState()
     return true
   }
   if (t === 'add-guild-boost') {