Anthropic data shows 80% of its code is now written by Claude, boosting engineer output eightfold. However, AI's habit of submitting granular PRs constantly caused test cases to surge tenfold and crash the CI system, which saw a 25x increase in tasks over six months. Standard patches failed, but rebuilding the service with a new distributed stateless architecture based on Claude's advice resolved the overload. This highlights that as AI removes human rhythm constraints from coding, software engineering pipelines designed for humans become the primary bottleneck.