Use when found gap or repetative issue, that produced by you or implemenataion agent. Esentially use it each time when you say "You absolutly right, I should have done it differently." -> need create rule for this issue so it not appears again.
Install
npx skills add NeoLabHQ/context-engineering-kit --skill create-rulenpx skills add NeoLabHQ/context-engineering-kit --skill create-rule -a claude-code -gnpx skills add NeoLabHQ/context-engineering-kit --skill create-rule -a codex -ggemini skills install https://github.com/NeoLabHQ/context-engineering-kit.git --path skills/create-rulegh skill install NeoLabHQ/context-engineering-kit create-rulegit clone --depth 1 https://github.com/NeoLabHQ/context-engineering-kit /tmp/NeoLabHQ__context-engineering-kit
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/NeoLabHQ__context-engineering-kit/skills/create-rule ~/.claude/skills/create-rule # Claude Code
cp -R /tmp/NeoLabHQ__context-engineering-kit/skills/create-rule ~/.agents/skills/create-rule # Codex, Cursor, Gemini CLI, Copilot, OpenCode