Case study: turning a long CI pipeline log into a short failure summary for humans and AI

CI logs often contain hundreds of lines that are operationally complete but editorially poor. A teammate usually does not need the cache restore lines, package download progress, or post-job cleanup messages on first read. An AI assistant benefits even less from that noise.

The useful transformation is simple: preserve the job, the failing step, the command, the first explicit error, and the exit code. That smaller summary is easier to paste into a pull request, a chat thread, or a debugging prompt.