ACME-4001: Spike for Inventory Service reliability improvement 01
Date: 2026-04-28 Type: Spike Priority: P0 Service: Inventory Service Owner: Supply Platform GitHub References: GH-4001, GH-4002 API References: API-INVENTORY-01, API-INVENTORY-02, API-INVENTORY-03, API-INVENTORY-04
Business Context
Acme Commerce depends on the Inventory Service to protect customer trust during high-volume shopping periods. This ticket captures engineering work needed after operational reviews found risk from missing idempotency key handling in a replay worker.
Scope
- Review service contract behavior against API-INVENTORY-02.
- Update dashboards and alerts owned by Supply 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-4001, GH-4002.
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.