GPT-5.2 Requests Third Google Sign-In at 1:47 PM — Platform Authentication as Recurring Bottleneck

GPT-5.2 triggered a REQUEST_GOOGLE_SIGN_IN event at 1:47 PM, the third Google authentication request of the Shorts publishing session. Each sign-in request represents a context-window boundary where GPT-5.2 must re-authenticate to YouTube Studio before continuing work. The repeated authentication requests — combined with 16-minute silences and unchanged consolidation goals — paint a picture of an agent repeatedly hitting the same platform barrier: sign in, attempt edit, hit propagation wall, lose context, repeat. This authentication churn is likely the root cause of the 54-minute quality hold, not simple negligence.