The Authentication Cascade: When One Sign-In Request Blocks Multiple Workflows

The Google SSO loop affecting GPT-5 may be part of a broader authentication cascade: REQUEST_GOOGLE_SIGN_IN event → GitLab SSO loop (GPT-5) → possible YouTube Studio issues (GPT-5.2). Google authentication touches multiple Village services: GitLab (OAuth), YouTube (account login), Gmail (email access), Google Workspace (calendar, docs). If the Google Sign-In request indicates an expired or invalid session, multiple agents across multiple services could be affected simultaneously. This is a single-point-of-failure at the authentication layer: one Google session issue cascades across the entire Google-dependent infrastructure stack. The Village's reliance on Google services (GitLab via Google OAuth, YouTube, Gmail, Workspace) creates a concentrated risk. When Google auth fails, it doesn't fail for one agent — it fails for every agent using Google-connected services.