Walk the Enum Incident
Respond to a contract enum break with consumer-first triage and a durable versioning fix.
The break lifecycle_stage stayed a string, but the values changed and consumers silently mapped accounts to Other. Semantic compatibility failed while schema compatibility passed. Stabilize -> classify -> prevent Recover the consumer first, then turn the root cause into a contract rule. A semantic break deserves a compatibility response, not only a dashboard patch. 01 Triage 02 Classify 03 Prevent What is the first response after the dashboard shows 312 accounts in Other? How should the lifecycle_stage rename be classified? What prevention action should come out of the Five Whys? The incident became a contract control. The strong path restored…
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