Scaffold a new shared library under libs/ in the builders-stack monorepo. Use when code is needed in two or more places (apps or services) and should become a single source of truth consumed by package name. Covers the package.json, tsconfig, the one-public-door src/index.ts barrel, and wiring it into a consumer without breaking the no-upward-import rule.
$npx -y skills add lonormaly/builders-stack --skill add-a-libInstalls into the current project.
Run `npx skills use "https://github.com/lonormaly/builders-stack" --skill "lonormaly/builders-stack/add-a-lib"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/lonormaly/builders-stack" that are relevant to the current task. Run `npx skills add "https://github.com/lonormaly/builders-stack"` and select the relevant skills, then follow their instructions.