davila7__claude-code-templates/cli-tool/components/commands/svelte/svelte-component.md

allowed-tools: Read, Write, Edit argument-hint: [component-name] [--typescript] [--story] description: Create new Svelte components with best practices, TypeScript support, and testing

Create Svelte Component

Create new Svelte component: $ARGUMENTS

Current Svelte Project

• Svelte config: @svelte.config.js or @vite.config.js (if exists)
• Components directory: @src/components/ or @src/lib/ (if exists)
• TypeScript config: @tsconfig.json (detect TypeScript usage)
• Testing setup: @vitest.config.js or @jest.config.js (if exists)

Task

Create Svelte component with best practices. When creating components:

1. Gather Requirements:

   • Component name and purpose
   • Props interface
   • Events to emit
   • Slots needed
   • State management requirements
   • TypeScript preference

2. Component Structure:

   <script lang="ts">
     // Imports
     // Type definitions
     // Props
     // State
     // Derived values
     // Effects
     // Functions
   </script>
   
   <!-- Markup -->
   
   <style>
     /* Scoped styles */
   </style>
   

3. Best Practices:

   • Use proper prop typing with TypeScript/JSDoc
   • Implement $bindable props where appropriate
   • Create accessible markup by default
   • Add proper ARIA attributes
   • Use semantic HTML elements
   • Include keyboard navigation support

4. Component Types to Create:

   • UI Components: Buttons, Cards, Modals, etc.
   • Form Components: Inputs with validation, custom form controls
   • Layout Components: Headers, Sidebars, Grids
   • Data Components: Tables, Lists, Data visualizations
   • Utility Components: Portals, Transitions, Error boundaries

5. Additional Files:

   • Create accompanying test file
   • Add Storybook story if applicable
   • Create usage documentation
   • Export from index file

Example Usage

User: "Create a Modal component with customizable header, footer slots, and close functionality"

Assistant will:

• Create Modal.svelte with proper structure
• Implement focus trap and keyboard handling
• Add transition effects
• Create Modal.test.js with basic tests
• Provide usage examples
• Suggest accessibility improvements