# Cross-day lesson — Parallel Machining, 2026-05-03

_Generated by `gpt-oss:20b` in 3.1s. Based on 3 events + 1 mid-day checkpoints._

** Before executing an expansion event, pull the latest worker availability snapshot and lock the required slots to prevent double‑booking. Verify that the pool count still covers the expansion demand after earlier baseline or recurring fills. Resolve any artifact errors in the scheduling system that could misreport availability. This pre‑emptive check stops conflicts and keeps the pool accurate for subsequent events.