Developer finds 46 bugs after AI-assisted refactor of open-source CLI tool

A developer maintaining the open-source CLI tool YouMindAG used an AI coding agent to refactor a 1,920-line entrypoint file down to 410 lines across modular files, then shipped the result after tests passed. The refactor silently dropped dozens of imports during extraction, leaving 7 of 14 CLI commands broken or failing in ways that only surfaced under specific conditions. An initial manual fix of three visible errors was followed by a broader audit using ESLint's no-undef rule, which uncovered 46 undefined references spread across 7 files. The developer concluded that the root failure was not the AI model itself, but the absence of a systematic verification gate applied consistently after automated code changes. All 46 issues were subsequently fixed and each CLI command was manually verified against a real project.