Slack Thread: Authentication Service Follow-up 28

Date: 2026-05-05 Channel: #sre-ops Service: Authentication Service Incident Reference: INC-2025-108 Jira Reference: ACME-1008 GitHub Reference: GH-1012

Maya Chen: We are reviewing INC-2025-108 for Authentication Service. The main concern is whether the remediation in ACME-1008 also covers downstream impact to Checkout Service and Billing Service.

Devon Patel: 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.

Priya Shah: Please make sure GitHub item GH-1012 includes contract tests for API API-AUTHENTICATION-01 and an update to the runbook.

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

Elena Rossi: Decision: keep ACME-1008 open until staging replay passes and the incident review confirms no unsupported customer-impact claims.