Opaque, revision-fenced reference to an observable point in a Spectre.Run.
A reference contains only logical identifiers. It is therefore safe to put on a transport envelope or use as part of an idempotency key; it never contains the Run continuation, runtime options, provider clients, or process handles.
Summary
Functions
Returns a stable, privacy-safe token suitable for transport idempotency.
Types
@type kind() :: :reply | :policy | :invocation | :complete | :error
@type t() :: %Spectre.Run.Ref{ boundary_id: String.t(), kind: kind(), revision: non_neg_integer(), run_id: String.t(), subject_id: String.t() | nil }