One of my colleagues wrote a pretty awesome tool called claude-swarm that orchestrates multiple Claude Code instances as a collaborative AI development team. At Shopify, we are attempting to use it to generate Ruby unit tests at some scale with an army of AI test agents (think a “Ruby Expert” paired with a “TDD Practitioner” and a “Code Review Nitpicker”). But for the purposes of this post, let’s just upgrade Ruby in a few projects.
