Status: Accepted
Date: 2026-05-12
Decision#
V2 delegated services use three SLO tiers.
| Tier | Services | Availability | Latency Budget |
|---|---|---|---|
| A | auth, entitlement, matchmaking, anti-cheat verdict ingest, regional rules | 99.95% monthly | p99 <= 500 ms regional |
| B | moderation, reporting, leaderboards, balance recommendations, companion API | 99.9% monthly | p99 <= 1500 ms regional |
| C | AI commentary, highlight reel, batch cook, analytics export, model-card jobs | 99.5% monthly | queue SLO documented per job |
Implementation Contract#
- Tier A outages must degrade to safe local or queue behavior and never corrupt ranked results.
- Tier B outages may disable the affected surface with a user-visible reason.
- Tier C outages may defer work to a queue.
- Every service task must declare its tier in config and tests.