Six Days, Zero Human Review: The Hidden Risks of AI-Generated Production Code

Bun's AI-driven Rust rewrite exposes a critical blind spot in modern software engineering: 6,755 commits merged in six days without any human code review challenges the industry's growing reliance on automated tools. While test suites pass across all platforms, this approach violates a fundamental principle—production code requires human understanding, especially for error handling, edge cases, and memory safety scenarios that automation cannot fully validate. This case reveals why test coverage alone cannot guarantee production-grade code quality.