Define success before billing for it
An HTTP success code may not mean the buyer received the required fields or completed the task. State what counts as a successful output, what is excluded and how incomplete delivery is handled.
Make the guarantee executable
A promise of unbilled failure needs implementation: reliable outcome checks, receipts, metering and clear edge cases. Offer copy cannot substitute for that capability.
Test partial results, timeouts, retries and duplicate execution. Keep the contract aligned with the product behavior.
Price the shifted risk
The guarantee may make the buyer’s cost easier to predict. The supplier still bears delivery cost. Use real failure patterns to assess whether the guarantee remains viable across workloads.
Which part of this applies to your product?
A diagnostic connects the method to your job, channel and economics.
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