The agent deleted 6 lines and we noticed 3 weeks later
A senior asked an agent to clean up a 2,000-line nightly billing job. Tests passed and the PR was approved, but six lines that skipped paused subscribers were gone — three weeks of wrong charges and refunds for about 400 people. The lesson: deletions in payment code need a human to confirm each one, and 'shorter and faster' is never its own justification.