phase phase#1
participant phase#1:workspace steps=world-read#1~phase#1
phase phase#2
participant phase#2:workspace steps=world-read#1~phase#2
participant phase#2:actor#1 "scout" steps=ask#1
handoff phase#2:workspace -> phase#2:actor#1 types="WorldRunResult"
handoff phase#2:actor#1 -> phase#2:workspace types="string"
