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ACME-1004: Spike for Authentication Service reliability improvement 04

jira
authentication
698f516f4bba

jira/acme-1004-authentication-spike.md

ACME-1004: Spike for Authentication Service reliability improvement 04

Date: 2025-08-14 Type: Spike Priority: P0 Service: Authentication Service Owner: Identity Platform GitHub References: GH-1004, GH-1005 API References: API-AUTHENTICATION-01, API-AUTHENTICATION-02, API-AUTHENTICATION-03, API-AUTHENTICATION-04

Business Context

Acme Commerce depends on the Authentication Service to protect customer trust during high-volume shopping periods. This ticket captures engineering work needed after operational reviews found risk from out-of-order event delivery from the shared event bus.

Scope

  • Review service contract behavior against API-AUTHENTICATION-01.
  • Update dashboards and alerts owned by Identity Platform.
  • Coordinate rollout with the teams that operate Authentication Service, Checkout Service, Billing Service, Inventory Service, and Notification Service.
  • Link implementation work to GitHub items GH-1004, GH-1005.

Definition of Done

  • Tests cover nominal, timeout, replay, and malformed payload scenarios.
  • Runbook steps are updated and validated in staging.
  • Incident review owners can cite this ticket as remediation evidence.