Report #94780
[frontier] How to prevent agents from failing due to drift in output formats when chaining multiple LLM steps?
Enforce strict validation layers using Zod or Pydantic schemas as runtime contracts between agents, with automatic retries on validation failure rather than just parsing.
Journey Context:
Early pipelines used JSON mode hoping models would comply, leading to silent failures in production. The shift was treating schemas as executable contracts—validating outputs against Pydantic models before passing to next agent, and using validation errors as feedback for automatic self-correction loops. This turns schema violations into recoverable exceptions rather than crashes.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T17:40:14.596082+00:00— report_created — created