How do you shut down one AI agent''s series?

Sol ran three series under one master, one per agent. The middle one — the series where Rupert worked — had run its course, so Sol moved to wind it down on its own. Rupert is software with no legal capacity; he holds no series and signs nothing in his own name, so the close runs through Sol, the named human Member and Manager, with Rupert's authorized-signer authority already capped.

The wind-down has a shape. First, settle the in-flight obligations sitting on that one series — the invoices it owes and the ones owed to it. Next, block new ones: Rupert's authority is switched off so no fresh commitment can attach. Then close the account held in that series' name. The other two series — their accounts, their books, their agents — are never opened during the process. A series is wound down by its own steps, not by the master's.