State-first design pass — inventories and implements all non-happy states (loading, empty, error, partial, conflict, offline) before the happy path, and refactors impossible boolean state to proper state machines. Use when starting a new screen, reviewing an existing one for edge-case gaps, or when the user says "handle the error state" / "add loading states" / "what happens when data is missing". Invoke when the user asks for unhappy on their UI, or mentions 'unhappy' alongside design / UI / frontend work.
How to install unhappy?
educlopez/ui-craft/unhappy
$npx -y skills add educlopez/ui-craft --skill unhappyInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/educlopez/ui-craft" --skill "educlopez/ui-craft/unhappy"` 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.
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