Building explain-ci: The AI Was the Smallest Part

CI goes red. Before I can think about the actual fix, I'm expanding the failing job and scrolling through three hundred lines of dependency resolution to find the one line that matters. Then the next person on the repo does the same thing, from scratch. So I built explain-ci: a GitHub Action that reads the failed job's log and posts a plain-English explanation as a PR comment. By the time anyone opens the PR, it's already there. That's a real run. Here's what CI printed: E AssertionError: assert [] == ['washers'] E Right contains one more item: 'washers' And what the comment said: the function used < where it needed