
Roblox’s approach to tripling AI code review acceptance rates
In this episode of Engineering Enablement, Brian Houck talks with Andrew Swerdlow, VP of Engineering at Roblox, about how the company is building trust in AI agents to review, test, and deploy code autonomously. Andrew explains how Roblox turns past code review feedback into rules for agents and why engineering is shifting toward specifications and intent. They explore what that means for the skills engineers need, how Roblox measures AI’s impact on productivity, and how it manages costs. They also discuss the guardrails needed to let agents safely ship code with minimal human intervention. Where to find Andrew Swerdlow: • LinkedIn: https://www.linkedin.com/in/andrewswerdlow/ • X: https://x.com/andrewswerdlow • Website: https://andrewswerdlow.net Where to find Brian Houck: • LinkedIn: https://www.linkedin.com/in/brianhouck In this episode, we cover: (00:00) Intro (02:20) Building trust in AI across the software development lifecycle (04:44) When human oversight helps and when it gets in the way (06:50) What AI agents need to know about your organization (08:45) How Roblox turns engineering knowledge into rules for AI agents (12:40) How AI code review compares to human code review (14:59) Capturing engineering knowledge beyond documentation (18:14) How AI changes what engineers need to understand (20:17) The shift to spec-driven development (23:24) How AI changes how we evaluate engineers (26:33) Rethinking engineering interviews in the age of AI (28:23) How Roblox tracks AI-generated code (35:56) Model routing and choosing the right AI tools (39:50) Measuring AI's impact on engineering productivity (44:44) Optimizing AI costs at scale (48:12) Builders at Roblox and the future of software engineering (50:19) Building trust in autonomous code review (53:11) The cultural shift toward autonomous engineering Referenced: • CAFE(S): Your Agent Is Only as Good as Its Context • Roblox • Tech Leadership by Andrew Swerdlow • Margaret-Anne Storey • Malte Ubl - Vercel | LinkedIn • Grafana Labs • Kushan Mehta | LinkedIn • Diff Risk Score: AI-driven risk-aware software development - Engineering at Meta


















