You have been working the same processing station for four hours. You are making more sorting errors than earlier in the shift. The best immediate action is:

Proactive communication about accuracy decline gives your supervisor the information they need to manage the production floor effectively. Task rotation and appropriate breaks are proven interventions for repetitive accuracy decline. Continuing silently while accuracy drops, or checking a phone (which would violate work rules), are both inferior choices. The VEA values workers who manage their own performance transparently.