diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
index d222b1fbd..0f1060026 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
@@ -918,7 +918,7 @@ export function ProjectSupervisorView({
             rows={3}
             value={chatInput}
             references={chatReferences}
-            showTriggerButton={!directCodex}
+            showTriggerButton={!directCodex && !planningSurfaceActive}
             placeholder={
               directCodex
                 ? '描述你的想法，或 @ 引用素材'