diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/dispatch.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/dispatch.rs
index 9e8a43357..be5bc35cb 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/dispatch.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/dispatch.rs
@@ -94,6 +94,16 @@ impl Drop for TurnReservation {
         // application.log 全空）。测试态不写，避免用例污染本机 AppData。
         #[cfg(not(test))]
         if finalized_by_guard {
+            // 项目侧也留一份脱敏诊断：用户在项目目录里就能看到这一轮的收场，
+            // 不必只依赖 AppData 的应用日志。
+            let failure = DirectTurnError::TurnFailed {
+                stage: DirectCodexFailureStage::CodeGeneration,
+                detail: format!(
+                    "DirectProject 宿主任务提前结束（panic、future 被丢弃或被取消），本轮未写下终态；threadId={} turnToken={}",
+                    self.thread_id, self.token
+                ),
+            };
+            let _ = record_direct_codex_failure(Path::new(&self.thread_id), &failure, None);
             let _ = crate::append_application_log(
                 "error".to_string(),
                 "direct-turn".to_string(),