Slack Thread: Authentication Service Follow-up 11

Date: 2025-10-30 Channel: #platform-architecture Service: Authentication Service Incident Reference: INC-2025-101 Jira Reference: ACME-1011 GitHub Reference: GH-1015

Elena Rossi: We are reviewing INC-2025-101 for Authentication Service. The main concern is whether the remediation in ACME-1011 also covers downstream impact to Checkout Service and Billing Service.

Sam Rivera: I checked traces for Authentication Service, Inventory Service, and Notification Service. The correlation IDs line up with the incident timeline, but the highest error rate stays inside Authentication Service.

Jordan Kim: Please make sure GitHub item GH-1015 includes contract tests for API API-AUTHENTICATION-04 and an update to the runbook.

Maya Chen: Agreed. I will add release readiness notes, dashboard screenshots, and a rollback checkpoint before this goes to canary.

Devon Patel: Decision: keep ACME-1011 open until staging replay passes and the incident review confirms no unsupported customer-impact claims.