Topic
Idempotency
Defining and verifying the outcome of repeated requests without repeating work that has already been accepted. Request identity, conflicting content, preserved state, and outstanding recovery obligations determine the contract.
1 page
Writing15 June 2026
Idempotency and Concurrent Requests
Repeated and concurrent order requests must preserve accepted outcomes without duplicate work. Compare canonical request identity, allowed race outcomes, stored facts, and outgoing effects.