diff --git a/scripts/spacetime-editor-idempotency-smoke.test.ts b/scripts/spacetime-editor-idempotency-smoke.test.ts
index cc6819746..f485733d7 100644
--- a/scripts/spacetime-editor-idempotency-smoke.test.ts
+++ b/scripts/spacetime-editor-idempotency-smoke.test.ts
@@ -69,6 +69,11 @@ describe('SpacetimeDB editor idempotency smoke parsers', () => {
 });
 
 describe('SpacetimeDB editor idempotency smoke cleanup', () => {
+  // 本用例真会拉起真实子进程：spawn 一个常驻 node，再由 stopStandalone 在 Windows 上
+  // spawn taskkill /PID /T /F 杀进程树并等退出。全并行负载下这两个真实进程的启动与回收
+  // 会明显超过 vitest 默认的 5000ms，因此只给这一条设局部有界超时，不动全局 testTimeout
+  // 与 maxThreads。这里不加注入桩：本用例的意义就是验真实杀进程路径，加桩等于换掉被测对象。
+  // stopStandalone 自身对 SIGTERM → SIGKILL 只有 5s 有界等待，20s 外层上限仍能抓住真实挂死。
   it('terminates a live standalone-shaped child process', async () => {
     const child = spawn(
       process.execPath,
@@ -79,5 +84,5 @@ describe('SpacetimeDB editor idempotency smoke cleanup', () => {
     await stopStandalone(child);
 
     expect(child.exitCode !== null || child.signalCode !== null).toBe(true);
-  });
+  }, 20_000);
 });