A production rollout exposes a contract mismatch between the UI boundary and the owning service. The affected area is tenant routing.
Repair the tenant routing command handling implementation so it accepts first operations, recognizes safe repeats, and rejects key reuse with a different payload.
Evidence
- Affected surface: Cloud-native full-stack / tenant routing.
- Observed failure family: enforce idempotent operations.
- Scope policy: cohort must equal stable.