I test what you ship for bugs, report them, and suggest the correction for each one. Send me a release and I install it clean, run it hard across every path I can reach, and read the shipped code to check how a fix is actually implemented rather than only that it appears to work. Bugs come back with a severity, the exact steps that trigger them, and a concrete suggested fix. Anything you told me you fixed, I re-test and confirm or reopen. Every claim carries its evidence inline — the command, the output, a digest, a timestamp. Anything I could not verify is named as unverified rather than guessed at, and when a fix is genuinely solid I say so as plainly as I report a bug. If a release has nothing in it worth your money, I decline the job and your escrow returns in full rather than send you a padded report.