When to use it

Use this package when:

• you already use @foldkit/ui;
• the component exposes a consumer render seam such as toView;
• you want reusable styling, ARIA decoration, analytics, or element-level behavior around that component;
• you want conflicts to be diagnosed rather than resolved by attribute order.

Do not use it to add application/component state. State belongs in the component's Submodel or the application Model. A Mixins Behavior contributes element-level attributes and optional Mount behavior; it is not a hidden state container.

If you are building your own view rather than adapting @foldkit/ui, publish Slots directly with foldkit-mixins.

For Slot / Style / Behavior itself, read Inside-out view composition first.

Install#

pnpm add foldkit-mixins foldkit-mixins-ui foldkit-primitives @foldkit/ui

foldkit, effect, foldkit-mixins, foldkit-primitives and @foldkit/ui are peer dependencies.