Caching, harnesses, and advisors: Building on Claude at GitHub scale

GitHub’s Copilot team ships Claude to millions of developers across chat, CLI, coding agent, and code review, and has become one of the most demanding users of the Claude Platform. GitHub CPO Mario Rodriguez and Anthropic’s Brad Abrams break down how the team pushes quality up and costs down at scale, from caching and evaluation to the new Advisor strategy. Walk away with patterns you can apply to your own Claude-powered product.