Chrome no longer has to be open before you start. If no Chromium-family browser is running, the harness launches one for you — picking a profile that already has remote debugging enabled and skipping the profile picker.
- Attaches to a reusable tab (about:blank, New Tab, or an existing
chrome://inspecttab) instead of always opening a new one, so startup is faster and you get fewer prompts. - Only closes leftover
chrome://inspecttabs the harness itself opened — your tabs are left alone. - Opens
chrome://inspect/#remote-debuggingat most once every 3 minutes, and guards against stale DevToolsActivePort files. - Clearer, actionable errors when setup or permissions block the connection.