Decisions
Each row links to a single ADR. Append-only. Update
statustoSuperseded by NNNNwhen overridden — never delete.
| ID | Status | Date | Title | Supersedes |
|---|---|---|---|---|
| 0001 | Accepted | 2026-01 | Single SaleOrder entity for cart and committed order | — |
| 0002 | Accepted | 2026-02 | Pessimistic SELECT FOR UPDATE on order during item mutations | — |
| 0003 | Accepted | 2026-02 | MQ-Pay payment events arrive via HTTP webhook, not polling | — |
| 0004 | Accepted | 2026-03 | Polymorphic AllocationUsage(usageType, usageId) shared by SaleOrder + Reservation | — |
| 0005 | Accepted | 2026-03 | Capture snapshot pricing (v1 + v2) on checkout into order items | — |
Authoring rules
- One decision per file, MADR template (
NNNN-<kebab-slug>.md). - Sequential 4-digit numbering, never reused.
- Status:
Proposed·Accepted·Deprecated·Superseded by NNNN. - Cross-service decisions go in
developer/decisions/, not here.