diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_actions/autonomous_policy.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_actions/autonomous_policy.rs
index 7727f2188..b85acad3f 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_actions/autonomous_policy.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_actions/autonomous_policy.rs
@@ -708,6 +708,13 @@ pub(crate) fn validate_agent_runtime_autonomous_plan_liveness(
     if agent_id == GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID
         && loop_index > AGENT_RUNTIME_AUTONOMOUS_PRE_MUTATION_LOOP_LIMIT
         && verification_gate.mutation_revision.is_none()
+        && verification_gate.failed_playtest_revision.is_none()
+        && verification_gate.verified_revision.is_none()
+        && !observations.iter().any(|observation| {
+            observation.tool == "preview.validate"
+                && observation.status == "failed"
+                && observation.summary == "浏览器验证未通过，请根据诊断修复后重试"
+        })
         && !has_mutation
         && !has_code_asset_route
         && plan.response.trim().is_empty()
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/main_loop_tests.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/main_loop_tests.rs
index df9c4e0a5..be937a926 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/main_loop_tests.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/main_loop_tests.rs
@@ -814,8 +814,14 @@ async fn game_chat_art_receipt_wakes_the_same_code_prototype_run() {
     .expect("waiting main task exists");
     let wake_started = wake_waiting_static_delegate_parent_run_at(&root, &waiting)
         .expect("wake same main run after art receipt");
-    cancel_game_creator_agent_runtime_task_at(&root, "code-prototype", &main.run_id)
-        .expect("cancel resumed fixture run");
+    if let Err(error) =
+        cancel_game_creator_agent_runtime_task_at(&root, "code-prototype", &main.run_id)
+    {
+        assert!(
+            error.contains("Agent Runtime 任务已结束，不能取消"),
+            "cancel resumed fixture run: {error}"
+        );
+    }
     let release_deadline = std::time::Instant::now() + std::time::Duration::from_secs(5);
     loop {
         if game_creator_agent_runtime_task_lock_is_available(&root, "code-prototype")