sequenceDiagram
  participant Scheduler
  participant DB as Durable reservation/status
  participant TB as T-Bank and public sources
  participant Store as Local resource store
  participant API as Resource GET

  Scheduler->>DB: Reserve current connection walk
  alt Due and no walk running
    DB-->>Scheduler: Attempt with connection revision
    Scheduler->>TB: Refresh membership, portfolios, mutable operations, events
    Scheduler->>Store: Publish each complete successful result for the same revision
    Scheduler->>DB: Settle succeeded, partial, or failed with safe failed sections
  else Not due or an attempt is running
    DB-->>Scheduler: No work
  end
  API->>Store: Read persisted result and attempt status
  Store-->>API: Last confirmed data and metadata