        check('本地假凭据只进入本地模拟传输', all(x['authorizationIsSynthetic'] and x['host'] == 'local-fixture.invalid' for x in mechanism.get('syntheticTransport', [])))
        check('真实实例保持QuickRouter目标', mechanism.get('actualBase', '').startswith(BASE))
        check('模型返回当前真实任务标签', output.get('label') == 'alpha')
