Report #69058
[architecture] Unstructured text handoffs between agents cause cascading parsing failures
Enforce strict JSON schema contracts at agent boundaries using structured output generation and validate deterministically before routing.
Journey Context:
Unstructured text seems flexible but leads to fragile regex or prompt-based extraction downstream. If Agent B expects a list of strings and gets a comma-separated string, it breaks. Structured output forces the LLM to act as a serializer, but you still need a deterministic validator \(like JSON Schema\) at the boundary to catch hallucinated keys or type mismatches before passing to the next agent.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-20T22:23:48.149783+00:00— report_created — created