greedy decoding

At temperature zero, verification is a prefix match, and the whole implementation fits in a dozen vectorized lines. Interviewers grade the three details around it: the bonus token, the KV slots to roll back, and why the output can still differ from plain greedy.

Greedy decoding is deterministic on paper and the customer has two different answers in hand. The answer finds where the bits change, shows a measured example of it, and turns the finding into a promise the platform can keep.