Write Kotlin with null-safe types, coroutines, flows, and data classes; integrate with Java and Android APIs.
Install
npx skills add alivirgo/Major-AI-Skills --skill kotlinnpx skills add alivirgo/Major-AI-Skills --skill kotlin -a claude-code -gnpx skills add alivirgo/Major-AI-Skills --skill kotlin -a codex -ggemini skills install https://github.com/alivirgo/Major-AI-Skills.git --path skills/kotlingh skill install alivirgo/Major-AI-Skills kotlingit clone --depth 1 https://github.com/alivirgo/Major-AI-Skills /tmp/alivirgo__Major-AI-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alivirgo__Major-AI-Skills/skills/kotlin ~/.claude/skills/kotlin # Claude Code
cp -R /tmp/alivirgo__Major-AI-Skills/skills/kotlin ~/.agents/skills/kotlin # Codex, Cursor, Gemini CLI, Copilot, OpenCode