@techreport{coopere2026defects,
  title  = {What Broke: A Defect Census of an AI-Authored Production System},
  author = {Cooper E.},
  year   = {2026},
  type   = {Independent research note},
  note   = {28,207 lines, 119 commits, 48 defect commits. Split-brain defects are
            the largest class at 21 percent; no defect was caught by a test written
            for something else.}
}