Execution skill. Use when creating, modifying, or reasoning about List Subsets — mirror dimensions, same-dimension-on-two-axes, cohort modeling, restricted dropdowns, iterative performance optimization, or any request involving subsets.
Install
npx skills add gopigment/ai-plugins --skill using-list-subsetsnpx skills add gopigment/ai-plugins --skill using-list-subsets -a claude-code -gnpx skills add gopigment/ai-plugins --skill using-list-subsets -a codex -ggemini skills install https://github.com/gopigment/ai-plugins.git --path skills/using-list-subsetsgh skill install gopigment/ai-plugins using-list-subsetsgit clone --depth 1 https://github.com/gopigment/ai-plugins /tmp/gopigment__ai-plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/gopigment__ai-plugins/skills/using-list-subsets ~/.claude/skills/using-list-subsets # Claude Code
cp -R /tmp/gopigment__ai-plugins/skills/using-list-subsets ~/.agents/skills/using-list-subsets # Codex, Cursor, Gemini CLI, Copilot, OpenCode