Production-readiness pass — audits and implements the full non-happy-path matrix: loading skeletons, empty states, error messages, partial data, i18n, offline, permissions, and first-run guidance. Use when preparing a surface for production or when the user says "it crashes on empty data" / "there's no loading state" / "harden this". Invoke when the user asks for harden on their UI, or mentions 'harden' alongside design / UI / frontend work.
$npx -y skills add educlopez/ui-craft --skill hardenInstalls into the current project.
Run `npx skills use "https://github.com/educlopez/ui-craft" --skill "educlopez/ui-craft/harden"` 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/educlopez/ui-craft" that are relevant to the current task. Run `npx skills add "https://github.com/educlopez/ui-craft"` and select the relevant skills, then follow their instructions.