# Cross-day lesson — Riverfront Steel, 2026-04-21

_Generated by `gpt-oss:20b` in 7.1s. Based on 5 events + 2 mid-day checkpoints._

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Validate every JSON payload with a validator before invoking a tool; a malformed payload caused the Forklift Operator expansion to fail.  
Confirm the GPT model is available and that the tool returns non‑empty text; if it returns an empty string, retry or switch to a fallback model.  
For recurring, expansion, and emergency events, pre‑fetch the candidate pool and verify it meets the required count before attempting placement.  
Log any tool failures immediately and update the risk mitigation plan for the next run.