{/* api-reference */}

assistant-ui primitives are composable. This means that all props are forwarded, classes are merged, and event handlers are chained.

Most primitives come with a default HTML element (usually div or button). If you already have a custom component, you can use the asChild prop to replace it:

// use the primitive's <button> element
<Composer.Send>Send</Composer.Send>;

// use your own <Button> component
<Composer.Send asChild>
  <Button>Send</Button>
</Composer.Send>;

Learn more on Radix's composition guide.