name: Storybook description: | Component stories using Storybook with Svelte CSF. Story patterns, defineMeta, argTypes, snippet-based customization, and visual testing. Keywords: storybook, stories.svelte, defineMeta, Story, args, argTypes, autodocs

Storybook

Documentation: storybook.js.org

Running Storybook

npm run storybook

File Location

Co-locate stories with components as *.stories.svelte.

Basic Story Pattern

From stack-status-badge.stories.svelte:

<script module lang="ts">
    import { defineMeta } from '@storybook/addon-svelte-csf';

    import { StackStatus } from '../models';
    import StackStatusBadge from './stack-status-badge.svelte';

    const { Story } = defineMeta({
        argTypes: {
            status: {
                control: { type: 'select' },
                options: [StackStatus.Open, StackStatus.Fixed, StackStatus.Regressed]
            }
        },
        component: StackStatusBadge,
        tags: ['autodocs'],
        title: 'Components/Stacks/StackStatusBadge'
    });
</script>

<Story name="Open" args={{ status: StackStatus.Open }} />
<Story name="Fixed" args={{ status: StackStatus.Fixed }} />
<Story name="Regressed" args={{ status: StackStatus.Regressed }} />

Story with Snippets

From notification.stories.svelte:

<script module lang="ts">
    import { Button } from '$comp/ui/button';
    import CheckCircle from '@lucide/svelte/icons/check-circle';
    import Ban from '@lucide/svelte/icons/ban';
    import { defineMeta } from '@storybook/addon-svelte-csf';

    import NotificationDescription from './notification-description.svelte';
    import NotificationTitle from './notification-title.svelte';
    import Notification from './notification.svelte';

    const { Story } = defineMeta({
        component: Notification,
        tags: ['autodocs'],
        title: 'Components/Shared/Notification'
    });
</script>

<Story name="Success">
    <Notification variant="success">
        {#snippet icon()}<CheckCircle />{/snippet}
        <NotificationTitle>Operation completed successfully!</NotificationTitle>
        <NotificationDescription>Your changes have been saved.</NotificationDescription>
    </Notification>
</Story>

<Story name="Destructive">
    <Notification variant="destructive">
        {#snippet icon()}<Ban />{/snippet}
        <NotificationTitle>Something went wrong</NotificationTitle>
        <NotificationDescription>An error occurred. Please try again.</NotificationDescription>
    </Notification>
</Story>

<Story name="With Action">
    <Notification variant="information">
        {#snippet action()}
            <Button variant="outline" size="sm">Take Action</Button>
        {/snippet}
        <NotificationTitle>Action required</NotificationTitle>
        <NotificationDescription>Click the button to proceed.</NotificationDescription>
    </Notification>
</Story>

Key Patterns

• defineMeta: Returns Story component, configure component, title, tags
• tags: ['autodocs']: Auto-generate documentation page
• argTypes: Configure controls for props (select, text, boolean, etc.)
• Simple args: <Story name="Open" args={{ status: 'open' }} />
• Custom content: Use children with snippets for complex compositions
• Title hierarchy: Use / for organization (e.g., Components/Shared/Notification)