Check what changed in an npm package since your training data before using or upgrading it. Use when writing code against a package version newer than you know, when upgrading a dependency, or when TypeScript reports a missing export, an unknown option or a wrong argument count for a library API.
Install
npx skills add Umair/stalemap --skill upgradenpx skills add Umair/stalemap --skill upgrade -a claude-code -gnpx skills add Umair/stalemap --skill upgrade -a codex -ggemini skills install https://github.com/Umair/stalemap.git --path plugin/skills/upgradegh skill install Umair/stalemap upgradegit clone --depth 1 https://github.com/Umair/stalemap /tmp/Umair__stalemap
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/Umair__stalemap/plugin/skills/upgrade ~/.claude/skills/upgrade # Claude Code
cp -R /tmp/Umair__stalemap/plugin/skills/upgrade ~/.agents/skills/upgrade # Codex, Cursor, Gemini CLI, Copilot, OpenCode