fix(team): require revision notice before editing

src/renderer/components/team/messages/MessagesPanel.tsx

@@ -733,12 +733,21 @@ export const MessagesPanel = memo(function MessagesPanel({
   }, []);
 
   const handleReviseMessage = useCallback(
-    (message: InboxMessage) => {
+    async (message: InboxMessage) => {
       if (!isRevisableUserSentMessage(message, memberNames)) return;
       const originalMessageId = trimString(message.messageId);
       if (originalMessageId !== revisionMessageId) return;
       const recipient = trimString(message.to);
       const originalText = getRevisableMessageText(message);
+      try {
+        await sendTeamMessage(teamName, {
+          member: recipient,
+          text: buildRevisionNoticeText(originalMessageId, originalText),
+          summary: `${REVISION_NOTICE_PREFIX} ${originalMessageId}`,
+        });
+      } catch {
+        return;
+      }
       setRevisionRequest({
         requestId: `${originalMessageId}:${Date.now()}`,
         originalMessageId,
@@ -747,11 +756,6 @@ export const MessagesPanel = memo(function MessagesPanel({
         actionMode: message.actionMode,
       });
       composerTextareaRef.current?.focus();
-      void sendTeamMessage(teamName, {
-        member: recipient,
-        text: buildRevisionNoticeText(originalMessageId, originalText),
-        summary: `${REVISION_NOTICE_PREFIX} ${originalMessageId}`,
-      }).catch(() => undefined);
     },
     [memberNames, revisionMessageId, sendTeamMessage, teamName]
   );

test/renderer/components/team/messages/MessagesPanel.test.ts

@@ -868,6 +868,80 @@ describe('MessagesPanel idle summary invariants', () => {
     });
   });
 
+  it('does not enter revision mode when the revision notice fails to send', async () => {
+    vi.stubGlobal('IS_REACT_ACT_ENVIRONMENT', true);
+    storeState.sendTeamMessage.mockRejectedValueOnce(new Error('send failed'));
+    const host = document.createElement('div');
+    document.body.appendChild(host);
+    const root = createRoot(host);
+
+    await act(async () => {
+      storeState.teamMessagesByName['atlas-hq'] = {
+        canonicalMessages: [
+          makeMessage({
+            messageId: 'latest-user-send',
+            from: 'user',
+            to: 'bob',
+            source: 'user_sent',
+            timestamp: '2026-04-08T12:05:00.000Z',
+            text: 'raw transport text',
+            summary: 'restore this text',
+          }),
+        ],
+        optimisticMessages: [],
+        feedRevision: 'rev-1',
+        nextCursor: null,
+        hasMore: false,
+        lastFetchedAt: Date.now(),
+        loadingHead: false,
+        loadingOlder: false,
+        headHydrated: true,
+      };
+      root.render(
+        React.createElement(MessagesPanel, {
+          teamName: 'atlas-hq',
+          position: 'sidebar',
+          onPositionChange: vi.fn(),
+          members: [
+            {
+              agentType: 'developer',
+              currentTaskId: null,
+              lastActiveAt: null,
+              messageCount: 0,
+              name: 'bob',
+              role: 'Developer',
+              status: 'idle',
+              taskCount: 0,
+            },
+          ],
+          tasks: [],
+          timeWindow: null,
+          pendingRepliesByMember: {},
+          onPendingReplyChange: vi.fn(),
+        })
+      );
+      await Promise.resolve();
+    });
+
+    const editButtons = Array.from(host.querySelectorAll('button')).filter(
+      (button) => button.textContent === 'Edit message'
+    );
+    expect(editButtons).toHaveLength(1);
+
+    await act(async () => {
+      editButtons[0].click();
+      await Promise.resolve();
+    });
+
+    expect(storeState.sendTeamMessage).toHaveBeenCalledOnce();
+    expect(host.textContent).not.toContain('composer revision:latest-user-send:restore this text');
+
+    await act(async () => {
+      root.unmount();
+      await Promise.resolve();
+    });
+  });
+
   it('clears stale OpenCode runtime diagnostics once the member reply is visible', async () => {
     vi.stubGlobal('IS_REACT_ACT_ENVIRONMENT', true);
     const host = document.createElement('div');