zlacker

>>defly+(OP)
does OP mean simply the identity of the message?

idempotency means something else to me.

>>attila+Deg
"Idempotency key" is a widely accepted term [1] for this concept; arguably, you could call it "Deduplication key" instead, but I think this ship has sailed.

[1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/...