Handles Android Java projects with MVVM architecture, ViewBinding, and proper separation between data, domain, and UI layers. Kicks in automatically when you're touching Java files, build.gradle configs, or anything under an android directory. The templates are solid: shows you repository patterns with cache-first logic, ViewModels that survive configuration changes, and proper Fragment/Activity lifecycle management with binding cleanup. Medium effort rating seems right since you're dealing with boilerplate-heavy Java instead of Kotlin, but the structure keeps things organized. If you're maintaining legacy Android apps or working in a Java-only shop, this gives you clean patterns to follow.
npx skills add https://github.com/alinaqi/claude-bootstrap --skill android-java