Wealthfront’s AI Code Review Experiment Shows Structured LLM Harness Cuts Bugs
Wealthfront spent several years building a custom AI‑augmented code review pipeline, moving from early skepticism to a structured harness that feeds diffs to models such as Opus 4 and Gemini. The system consistently spots bugs that slip past tests and human reviewers, proving that a tailored LLM workflow can out‑perform generic code‑review services.