Only the fixed synthetic test page is controlled. No AI account or model API key is needed. One reviewer at a time. This does not sandbox the extension itself.
In extension Settings add the privately supplied WSS URL and extension token. A new profile starts OFF: save, then explicitly switch ON. Never enter that extension token here.
Sign in to begin.
Stop closes only this review session and its owned tab. The extension OFF switch disconnects browser control. Chrome's native debugging Cancel disables the profile; explicitly enable again to resume. Native physical Cancel is a separate manual acceptance check.