Survives restarts. Blocks start, resume, dispatch, and hazardous G-code until a human clears it.
No silent resume. Inspect the printer, acknowledge the hazard, then clear with a signed note.
Per-printer health score. Tracks success rates, duration anomalies, and recurring failure modes over time.
Per-material success rates per printer. Surfaces gaps like “ABS at 25% on this machine.”
PLA in a hot enclosure? ABS without chamber heat? 11 materials with thermal profiles, checked before printing.
Critical alert if chamber exceeds safety max. Cooldown wait times between material swaps.