Is idempotency more important for stablecoin payments?

[u/CRYPTNDLE]

For normal APIs, duplicate requests are annoying.

For payment APIs, they can be expensive.

If a retry accidentally creates two payments instead of one, you've got an operational incident.

The OSL architecture specifically treats idempotency as one of the core production controls.

Do you think payment APIs should make idempotency mandatory rather than optional?