What 10 Versions of an AI Code Review CLI Taught...

You don't learn how developers think by reading docs. You learn by shipping something, watching it fail, and shipping it again. I've been building 2ndOpinion, an AI code review tool where multiple models — Claude, Codex, Gemini — cross-check each other's reviews. Over the past few months and ten CLI versions, I've rewritten the developer experience more times than I'd like to admit. Here's what actually stuck. Version 1: The "Just Ship It" Phase The first version of the CLI did exactly one thing