The wt.exe auto-create guard was keyed on the browser UA, forcing Windows browsers pointed at mac/linux-hosted dashboards through the manual "Start terminal" screen. Windows-UA clients now probe GET /api/system/info once and only keep the skip when the SERVER platform is win32 (or the probe fails, conservatively). Non-Windows browsers never probe. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>