Every attempt has a cost.

One task. Several tries. A useful result.
This sample shows how to count all three.

Synthetic fixture demo. These are invented model labels, costs and responses. No models were evaluated. The sample includes deliberate JSON failures to show why retries belong in the bill.

Edit sample-cases.json and rerun node sample.mjs. Acceptance checks exact fields and basic summary length; human review is still needed for factual accuracy.