Building a custom component the bestax way

This skill teaches how to build a component that isn't in the library — composed from bestax pieces in an app, or as a full library "extra" inside the bestax monorepo.

Which context are you in?

• The bestax monorepo (the repo contains bulma-ui/src/) → follow references/library-contributor.md instead of this file: five-file layout, SCSS partial, stories, jest tests, docs page, wiring.
• An app depending on @allxsmith/bestax-bulma (e.g. scaffolded by npm create bestax) → continue here. Everything below assumes public package imports and a plain Vite app.

For form components (Field/Control/Input/etc.) use the bestax-form skill instead.

Check for an existing component first