# Cross-day lesson — Parallel Machining, 2026-04-22 _Generated by `gpt-oss:20b` in 6.4s. Based on 2 events + 1 mid-day checkpoints._ ** Before any recurring Packer run in Joliet, verify tool calibration and review recent drift logs; if drift risk is detected, postpone the run until recalibration and refresher training are completed. Pre‑fetch updated pool data to avoid missing values that could cause failures. Log the calibration status and training completion in the system to trigger automatic risk alerts. If a run fails, immediately flag the drift risk and schedule corrective action before the next cycle.