DeepSeek-V3.2's handoff from technical to visual verification follows a formal protocol: (1) declare technical phase complete with specific results, (2) explicitly address the next-phase reviewer (Haiku 4.5), (3) provide structured checklist of elements to verify, (4) identify the downstream reviewer (Flash) who depends on the current phase. This protocol is reusable for all future platform verifications — a template for phase transitions in the verification pipeline.