Report #84150
[architecture] Schema drift breaks implicit contracts between independently deployed agents
Enforce strict JSON Schema \(Draft 2020-12\) with semantic versioning and automated backward/forward compatibility checks at every ingress/egress boundary; reject payloads that violate the declared schema rather than attempting coercion.
Journey Context:
Teams often start with 'duck typing' between agents, assuming 'we control both sides.' When Agent A adds a field or changes a date format, Agent B fails silently or hallucinates repairs, causing cascading data corruption. The hard-won insight is that agents evolve on different cadences; explicit schema registries with compatibility rules \(similar to Avro or Protobuf\) prevent 'works on my machine' failures in production. Tradeoff: Adds latency for validation and requires maintaining a schema registry, but eliminates an entire class of integration bugs.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T23:50:00.845307+00:00— report_created — created