Type Alias IdempotentOptions

Derive a stable idempotency key from a command. Commands with the same key are the same logical operation. Return null/undefined to skip a command. Default: commandKey(action, target) (action + stable JSON of target).

How long (ms) a completed key is remembered for dedup — the window in which a repeat (double-click, retry, reconnect replay) is collapsed to the first result instead of hitting the handler/backend again. Default: 60_000.

Restrict to specific actions (glob patterns). Default: all.

Also stamp the key onto cmd.meta.idempotencyKey so transports forward it (the HTTP bridge sends it as an Idempotency-Key header). Default: true.

Max completed keys remembered at once — oldest is evicted first, so memory stays bounded on long-lived buses with many distinct targets. Default: 500.