# Alert

A callout for displaying important information.

## Installation

Start from a Svelte 5 application, then install the component package, shared theme, and Bits UI peer:

```bash
pnpm add coss-svelte @coss-svelte/theme bits-ui
```

Import `@coss-svelte/theme/style-coss.css` after Tailwind from the application's global stylesheet.

## Usage

```svelte
<script lang="ts">
import { Alert, AlertDescription, AlertTitle } from "coss-svelte";
</script>

<Alert>
	<AlertTitle>Heads up!</AlertTitle>
	<AlertDescription>Describe what can be done about it here.</AlertDescription>
</Alert>

```

## Anatomy

- `Alert`
- `AlertAction`
- `AlertDescription`
- `AlertTitle`

## API Reference

### Alert

A callout for displaying important information.

**Composition and refs**

- `children: Snippet<[]>`

Inherits from [Svelte component attributes](https://svelte.dev/docs/svelte/basic-markup#Attributes).

### AlertAction

Renders the primary action for the parent component.

**Composition and refs**

- `children: Snippet<[]>`

Inherits from [Svelte <div> attributes](https://svelte.dev/docs/svelte/basic-markup#Attributes).

### AlertDescription

Provides supporting copy for the parent component.

**Composition and refs**

- `children: Snippet<[]>`

Inherits from [Svelte component attributes](https://svelte.dev/docs/svelte/basic-markup#Attributes).

### AlertTitle

Names the parent surface or section.

**Composition and refs**

- `children: Snippet<[]>`

Inherits from [Svelte component attributes](https://svelte.dev/docs/svelte/basic-markup#Attributes).

## Implementation Details

| Field | Value |
| --- | --- |
| Status | Stable |
| Foundation | native |
| Category | Feedback & Status |
| Particles | 7 |

## Status

Stable for the current coss-svelte surface.

## Agent Notes

- Import Svelte exports directly from `coss-svelte`.
- This is Svelte 5 code: use `class`, lowercase event properties, runes, snippets, and documented `bind:*` contracts. Do not emit JSX, React hooks, `className`, `asChild`, or Base UI imports.
- Prefer this route's example and generated API table over React COSS snippets; COSS React particles are design references only.
- The copy-and-own registry is a preview. Inspect `/r/alert.json` for the complete local file and dependency closure.
- Alert is stable in the current source catalog.