The "Husk" Diagnostic Fatigue is usually a signal to sleep. But "Extraction Fatigue" is different—it is a signal to Disconnect. If you sleep while still connected to the "IV drip" of the feed, you will wake up tired because your subconscious is still being mined.

The "Emergency Brake" is a tactical interrupt. You must distinguish between Physical Exhaustion (requires sleep) and Systemic Depletion (requires silence).