Using Claude Code in a large Android codebase requires a fundamentally different approach than a side project. With the right setup, Claude stays aligned with your conventions and focused on what actually matters. This talk shows you exactly how to effectively use Claude Code in a complex Android codebase. Throughout the talk I will share real use cases and examples drawn from my own learnings working in a complex Android codebase. I will show how thoughtful use of rules and skills keeps Claude aligned with your architecture and ensures every engineer on the team gets the right context without any manual setup. From there we will look at how hooks and plugins solve the harder organizational problem of making your entire Claude setup consistent and enforceable across dozens of repos. Finally I will show how MCP and parallel agents take Claude further by connecting it to your tools and scaling it across the entire codebase. You will leave knowing how to apply these practices to your own Android codebase right away.