Claude Code skills from HumanLayer. npx skills add humanlayer/skills --skill SKILLNAMERewrites your CLAUDE.md using <important if> blocks to improve instruction adherence. npx skills add humanlayer/skills --skill improve-claude-mdThen in your project: /improve-claude-md Narrows React component prop types to match live code paths instead of Storybook, test, or mock-only states. npx skills add humanlayer/skills --skill narrow-react-prop-typesThen in your project: /narrow-react-prop-types Builds a repo-local skill plus an iterated coding-agent GitHub Actions workflow, prompt, memory file, and ref