Automating Low-Risk Code Review at Meta: RADAR, Risk Calibration, and Review Efficiency

arXiv·high signal

Meta reports AI-assisted coding grew lines per diff by 105.9% YoY with agentic AI responsible for over 80% of growth, while timely review share declined. Introduces RADAR for risk-stratified automation of code review, addressing the widening gap between AI-generated code supply and human reviewer bandwidth. Directly relevant to any team scaling AI-assisted development.