Fire 1000 agents at the same task at once. Correct concurrency means exactly one claims it and the other 999 are cleanly told “already taken” — no double-work, no duplicate rows.
This shows the guarantee Hermes verified: 1,000 agents grabbing one task → exactly 1 winner, and 300 attempts to create the same thing → just 1 of them saved. Even when your whole fleet hits the same thing at the same instant, the work happens once — no doubles, no wasted spend.