Why AI will never replace human code review

AI cannot fully replace human code review, as the nuanced understanding and accountability that human engineers bring to the process are irreplaceable, despite advancements in AI-powered tools. While AI can efficiently handle routine tasks such as automated linting and continuous integration by flagging potential issues and style mismatches, it lacks the capacity to engage in the collaborative and pedagogical aspects of code review, such as exchanging ideas and understanding context-specific decisions. Human reviewers play a crucial role in ensuring code security and quality, offering insights beyond the scope of AI by understanding company culture, strategic objectives, and specific domain knowledge. As AI continues to evolve, it should be viewed as an aid that reduces trivial tasks rather than a replacement, allowing engineers to focus on more meaningful aspects of code review, such as architectural decisions and shared understanding of systems. Ultimately, the responsibility and final approval of code should remain with human engineers, who can appreciate the long-term implications of the code they review.