01 · Captain Rotation
Nobody may be captain more than twice,and never twice in a row.
The rule removes the title from the room. Whoever holds the seat has to brief, decide and yield within one era, and whoever does not hold it has to influence without authority. The Captain Log in every report shows who took the seat, who handed it back, who never asked for it, and how decision latency and voices heard changed under each captain.
Indicators 39-46, delegation and adaptive leadership, read mostly from this one rule.