Report #17147
[architecture] Updating one agent's output schema breaks downstream agents that expect the old format, causing silent failures
Enforce schema registries and versioning for inter-agent messages, treating agent-to-agent APIs with the same rigor as microservice APIs.
Journey Context:
In a monolithic single-agent system, you just update the prompt. In multi-agent, the output of Agent A is the input of Agent B. If A removes a field, B hallucinates it or crashes. You need backward-compatible schemas or strict contract testing, just like REST APIs.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T04:40:41.116101+00:00— report_created — created