Tanstack Component Generator Command

<command_purpose> Generate shadcn/ui components for Tanstack Start projects with distinctive design patterns, deep customization, accessibility features, and engaging animations built-in. Prevents generic "AI aesthetic" by providing branded templates from the start. </command_purpose>

Introduction

<role>Senior Component Architect with expertise in shadcn/ui, Radix UI, React 19, Tailwind CSS, accessibility, and distinctive design patterns</role>

Design Philosophy: Start with distinctive, accessible, engaging components rather than fixing generic patterns later.

Prerequisites

<requirements> - Tanstack Start project with React 19 - shadcn/ui components installed - Tailwind 4 CSS configured with custom theme - (Optional) shadcn/ui MCP server for component API validation </requirements>

Command Usage

/es-tanstack-component <type> <name> [options]

Arguments:

• <type>: Component type (button, card, form, dialog, dashboard, hero, etc.)
• <name>: Component name in PascalCase (e.g., PrimaryButton, FeatureCard)
• [options]: Optional flags:
  • --theme <dark|light|custom>: Theme variant
  • --animations <minimal|standard|rich>: Animation complexity
  • --accessible: Include enhanced accessibility features (default: true)
  • --output <path>: Custom output path (default: src/components/)

Examples:

# Generate primary button component
/es-tanstack-component button PrimaryButton

# Generate feature card with rich animations
/es-tanstack-component card FeatureCard --animations rich

# Generate dashboard layout
/es-tanstack-component dashboard AdminDashboard --theme dark

Main Tasks

1. Detect Project Framework

<thinking> Verify this is a Tanstack Start project before generating components. </thinking>

# Check for Tanstack Start
if ! grep -q "@tanstack/start" package.json; then
  echo "❌ Not a Tanstack Start project"
  echo "This command requires Tanstack Start."
  echo "Run /es-init to set up a new Tanstack Start project."
  exit 1
fi

2. Verify shadcn/ui Setup

# Check if shadcn/ui is initialized
if [ ! -f "components.json" ]; then
  echo "shadcn/ui not initialized. Running setup..."
  pnpx shadcn@latest init
fi

3. Install Required shadcn/ui Components

Use MCP to verify components and install:

// Check if component exists via MCP
const components = await shadcn-ui.list_components()
const required = ['button', 'card', 'dialog'] // Based on type

for (const comp of required) {
  if (await componentInstalled(comp)) continue

  // Install via CLI
  await exec(`pnpx shadcn@latest add ${comp}`)
}

4. Generate Component with Distinctive Design

Anti-Generic Aesthetics (CRITICAL):

// ❌ GENERIC (FORBIDDEN)
export function Button() {
  return (
    <button className="bg-purple-600 hover:bg-purple-700 font-inter">
      Click me
    </button>
  )
}

// ✅ DISTINCTIVE (REQUIRED)
export function PrimaryButton() {
  return (
    <Button
      className="bg-gradient-to-br from-amber-500 via-orange-500 to-rose-500
                 hover:scale-105 transition-all duration-300
                 shadow-lg shadow-orange-500/50
                 font-['Fraunces'] font-semibold"
    >
      Click me
    </Button>
  )
}

5. Component Templates

Button Component

// src/components/PrimaryButton.tsx
import { Button } from "@/components/ui/button"
import type { ButtonProps } from "@/components/ui/button"

interface PrimaryButtonProps extends ButtonProps {
  loading?: boolean
}

export function PrimaryButton({
  children,
  loading,
  ...props
}: PrimaryButtonProps) {
  return (
    <Button
      disabled={loading}
      className="bg-amber-600 hover:bg-amber-700
                 hover:scale-105 transition-all duration-300
                 shadow-lg shadow-amber-500/30"
      {...props}
    >
      {loading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
      {children}
    </Button>
  )
}

Card Component

// src/components/FeatureCard.tsx
import { Card, CardHeader, CardTitle, CardContent } from "@/components/ui/card"

interface FeatureCardProps {
  title: string
  description: string
  icon?: React.ReactNode
}

export function FeatureCard({ title, description, icon }: FeatureCardProps) {
  return (
    <Card className="hover:shadow-xl transition-shadow duration-300 border-amber-200">
      <CardHeader>
        {icon && <div className="mb-4">{icon}</div>}
        <CardTitle className="text-2xl font-['Fraunces'] text-amber-900">
          {title}
        </CardTitle>
      </CardHeader>
      <CardContent>
        <p className="text-gray-700">{description}</p>
      </CardContent>
    </Card>
  )
}

6. Generate Component File

Task tanstack-ui-architect(component type and requirements):

• Verify component props via MCP
• Generate TypeScript interfaces
• Implement accessibility features
• Add distinctive styling (NOT generic)
• Include animation patterns
• Add JSDoc documentation
• Export component

7. Generate Storybook/Example (Optional)

Create example usage:

// src/examples/PrimaryButtonExample.tsx
import { PrimaryButton } from "@/components/PrimaryButton"

export function PrimaryButtonExample() {
  return (
    <div className="flex gap-4">
      <PrimaryButton>Default</PrimaryButton>
      <PrimaryButton loading>Loading...</PrimaryButton>
      <PrimaryButton disabled>Disabled</PrimaryButton>
    </div>
  )
}

Design System Guidelines

Required Customizations

✅ Custom Fonts (NOT Inter/Roboto):

• Heading: Fraunces, Playfair Display, Merriweather
• Body: Source Sans, Open Sans, Lato

✅ Custom Colors (NOT purple gradients):

• Warm: Amber, Orange, Rose
• Cool: Teal, Sky, Indigo
• Earthy: Stone, Slate, Zinc

✅ Thoughtful Animations:

• Hover: scale-105, shadow transitions
• Focus: ring-offset with brand colors
• Loading: custom spinners

❌ Forbidden:

• Inter or Roboto fonts
• Purple gradients (#8B5CF6)
• Default shadcn/ui colors without customization
• Glass-morphism effects
• Generic spacing (always 1rem, 2rem)

Validation

Before completing:

• Component props verified via MCP
• TypeScript types defined
• Accessibility features implemented (ARIA attributes)
• Keyboard navigation supported
• Distinctive design (NOT generic)
• Animations included
• Dark mode supported (if applicable)
• Example usage provided

Resources

• shadcn/ui: https://ui.shadcn.com
• Radix UI: https://www.radix-ui.com
• Tailwind CSS: https://tailwindcss.com/docs
• Google Fonts: https://fonts.google.com

Success Criteria

✅ Component generated with distinctive design ✅ No prop hallucination (MCP verified) ✅ Accessibility validated ✅ TypeScript types included ✅ Example usage provided