Confessions of an AI Skeptic: How Claude Code Turned a Google Engineer Into a Believer

A former Google engineer who spent most of 2025 as an AI coding skeptic now says AI coding "works astonishingly well" after a year of hands-on testing with Claude Code. Reviewing pull requests for his Ruby CLI framework Toys, Claude grasped the project's own terminology and DSL and caught subtle issues at a mid-to-senior engineer level. It also migrated a 90s-era PHP site to Jekyll in nearly an hour, self-correcting a hallucination when asked to check its work.