# MCP Server Enhancements Summary
This document summarizes the comprehensive enhancements made to the Canvelete MCP server to address critical knowledge gaps and improve AI assistant capabilities.
## Issues Addressed
### 1. ✅ Element Type Awareness
**Problem:** MCP server was not aware of all element types and their capabilities.
**Solution:**
- Created comprehensive `ELEMENT_CAPABILITIES` documentation covering all 13 element types
- Added detailed capability matrices showing what each element can and cannot do
- Documented styling limits for each element type
- Provided practical examples and use cases for each element
**New Element Types Added:**
- `qrcode` - QR code generator with full customization
- `barcode` - Barcode generator supporting 10 formats (CODE128, EAN13, UPC, etc.)
**Documentation:**
- `element-capabilities.ts` - Complete element capabilities reference
- `ELEMENT_TYPES_GUIDE.md` - User-friendly guide with examples
### 2. ✅ Dynamic Element Support
**Problem:** Unclear guidance on which elements should be dynamic and how to make them dynamic.
**Solution:**
- Documented dynamic support for 5 element types: text, image, qrcode, barcode, table
- Provided clear examples of how to create dynamic elements
- Added common variable naming conventions for certificates, badges, name tags, etc.
- Included workflow documentation for template creation
**Dynamic-Capable Elements:**
- `text` - Use `{{variable_name}}` in text content
- `image` - Use `{{variable_name}}` in src URL
- `qrcode` - Use `{{variable_name}}` in qrData
- `barcode` - Use `{{variable_name}}` in barcodeData
- `table` - Set `tableIsDynamic: true` with data source
### 3. ✅ Asset Fetching Tools
**Problem:** No tools to fetch assets from external sources (images, icons, cliparts).
**Solution:**
- Enhanced existing asset tools with comprehensive documentation
- Added detailed information about 5 asset sources
- Provided search tips, example queries, and usage workflows
- Documented 200K+ icons from Iconify, 2.7M+ Pixabay images, etc.
**Asset Sources Documented:**
| Source | Type | Count | Tool |
|--------|------|-------|------|
| Pixabay | Photos, illustrations | 2.7M+ | `search_stock_images` |
| Unsplash | High-quality photos | 3M+ | `search_stock_images` |
| Iconify | Icons from 150+ sets | 200K+ | `search_icons` |
| Cliparts | Curated cliparts | 10K+ | `search_clipart` |
| Illustrations | Artistic illustrations | 5K+ | `search_illustrations` |
**Documentation:**
- Enhanced `EXTERNAL_ASSETS` in metadata.ts
- Created `ASSET_SEARCH_GUIDE.md` with complete workflows
### 4. ✅ Font Information
**Problem:** Limited information about available fonts.
**Solution:**
- Documented 30+ professional fonts with metadata
- Added font categories: sans-serif, serif, display, script, monospace
- Provided font pairing recommendations
- Included style descriptions and best use cases
**Font Categories:**
- **Sans-Serif:** Inter, Roboto, Montserrat, Poppins, Open Sans, Lato, Raleway, Nunito, Ubuntu
- **Serif:** Playfair Display, Merriweather, Lora, PT Serif, Crimson Text
- **Display:** Bebas Neue, Anton, Righteous, Oswald
- **Script:** Pacifico, Dancing Script, Great Vibes
- **Monospace:** JetBrains Mono, Roboto Mono, Source Code Pro
## New Capabilities
### QR Code Generation
**Element Type:** `qrcode`
**Properties:**
- `qrData` - Content to encode (URL, text, vCard, WiFi, etc.)
- `qrColor` - Foreground color (default: black)
- `qrBgColor` - Background color (default: white)
- `qrErrorLevel` - Error correction: L (7%), M (15%), Q (25%), H (30%)
- `qrMargin` - Margin around QR code
**Supported Data Formats:**
- URLs: `https://example.com`
- Email: `mailto:email@example.com`
- Phone: `tel:+1234567890`
- SMS: `sms:+1234567890?body=Hello`
- WiFi: `WIFI:T:WPA;S:NetworkName;P:Password;;`
- vCard: Contact information
- Plain text
**Dynamic Support:** ✅ Yes
```json
{
"type": "qrcode",
"qrData": "{{ticket_url}}",
"isDynamic": true
}
```
### Barcode Generation
**Element Type:** `barcode`
**Properties:**
- `barcodeData` - Content to encode
- `barcodeFormat` - Barcode symbology
- `barcodeLineColor` - Bar color (default: black)
- `barcodeBackground` - Background color (default: white)
- `barcodeShowText` - Show human-readable text
- `barcodeTextSize` - Font size for text
- `barcodeWidth` - Width of individual bars
- `barcodeHeight` - Height of bars
**Supported Formats:**
- `CODE128` - Most versatile, full ASCII (general purpose)
- `CODE39` - Alphanumeric (industrial, military, healthcare)
- `EAN13` - 13-digit European Article Number (retail)
- `EAN8` - 8-digit short EAN (small products)
- `UPC` - 12-digit Universal Product Code (North America)
- `UPCE` - 6-8 digit compressed UPC
- `ITF14` - 14-digit Interleaved 2 of 5 (shipping)
- `MSI` - Numeric only (inventory, warehouse)
- `pharmacode` - Pharmaceutical binary code
- `codabar` - Libraries, blood banks, logistics
**Dynamic Support:** ✅ Yes
```json
{
"type": "barcode",
"barcodeData": "{{product_sku}}",
"barcodeFormat": "CODE128",
"isDynamic": true
}
```
## Documentation Structure
### New Files Created
1. **`element-capabilities.ts`**
- Comprehensive element type documentation
- Styling capabilities matrix
- Dynamic element support reference
- Common design patterns
2. **`ELEMENT_TYPES_GUIDE.md`**
- User-friendly guide to all 13 element types
- Required properties and examples for each type
- Styling capabilities and limitations
- Best practices and tips
3. **`ASSET_SEARCH_GUIDE.md`**
- Complete guide to asset sources
- Search tool documentation
- Workflow examples
- Tips and best practices
4. **`ENHANCEMENTS_SUMMARY.md`** (this file)
- Overview of all enhancements
- Issues addressed
- New capabilities
- Documentation structure
### Enhanced Files
1. **`types/index.ts`**
- Added `qrcode` and `barcode` to ElementTypeEnum
- Added comprehensive QR code properties with descriptions
- Added comprehensive barcode properties with descriptions
2. **`resources/metadata.ts`**
- Integrated ELEMENT_CAPABILITIES
- Enhanced EXTERNAL_ASSETS with detailed information
- Added comprehensive asset source documentation
- Improved font catalog with metadata
3. **`index.ts`**
- Updated add_element tool description
- Added QR code and barcode to element type enum
- Added all QR code and barcode properties to schema
4. **`README.md`**
- Added links to new documentation
- Updated features section with new capabilities
- Highlighted QR codes, barcodes, and asset sources
## Styling Capabilities Matrix
Quick reference for AI assistants:
| Property | Supported Elements |
|----------|-------------------|
| `fill` | rectangle, circle, polygon, star, bezier, container, table |
| `stroke` | rectangle, circle, line, polygon, star, bezier, container, table |
| `borderRadius` | rectangle, image, container |
| `rotation` | **All elements** |
| `opacity` | **All elements** |
| `filters` | rectangle, circle, text, image, polygon, star, container |
| `boxShadow` | rectangle, image, container |
| `gradients` | rectangle, circle, polygon, star, bezier, container |
| `textShadow` | text |
| `objectFit` | image, svg |
## MCP Protocol Compliance
All enhancements conform to the MCP protocol specifications:
✅ **Resources** - Metadata resource provides comprehensive documentation
✅ **Tools** - All tools have complete input schemas with descriptions
✅ **Schemas** - Zod schemas validate all inputs
✅ **Error Handling** - Proper error responses with helpful messages
✅ **Documentation** - Extensive inline documentation and guides
## Usage Examples
### Example 1: Create Certificate with QR Code
```javascript
// Create certificate design
const design = await create_design({
name: "Event Certificate",
width: 2200,
height: 1700
});
// Add background
await add_element({
designId: design.id,
element: {
type: "rectangle",
x: 0,
y: 0,
width: 2200,
height: 1700,
fill: "linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%)"
}
});
// Add recipient name (dynamic)
await add_element({
designId: design.id,
element: {
type: "text",
x: 200,
y: 600,
width: 1800,
height: 120,
text: "{{recipient_name}}",
isDynamic: true,
fontSize: 72,
fontFamily: "Great Vibes",
textAlign: "center"
}
});
// Add verification QR code (dynamic)
await add_element({
designId: design.id,
element: {
type: "qrcode",
x: 1900,
y: 1400,
width: 200,
height: 200,
qrData: "{{certificate_url}}",
isDynamic: true,
qrErrorLevel: "H"
}
});
```
### Example 2: Product Label with Barcode
```javascript
// Search for product image
const images = await search_stock_images({
query: "product packaging",
perPage: 5
});
// Create label design
const design = await create_design({
name: "Product Label",
width: 800,
height: 400
});
// Add product image
await add_element({
designId: design.id,
element: {
type: "image",
x: 50,
y: 50,
width: 300,
height: 300,
src: images.assets[0].url,
objectFit: "cover",
borderRadius: 8
}
});
// Add product name (dynamic)
await add_element({
designId: design.id,
element: {
type: "text",
x: 400,
y: 50,
width: 350,
height: 60,
text: "{{product_name}}",
isDynamic: true,
fontSize: 32,
fontFamily: "Montserrat",
fontWeight: "700"
}
});
// Add barcode (dynamic)
await add_element({
designId: design.id,
element: {
type: "barcode",
x: 400,
y: 250,
width: 350,
height: 100,
barcodeData: "{{product_sku}}",
barcodeFormat: "CODE128",
isDynamic: true,
barcodeShowText: true
}
});
```
### Example 3: Social Media Post with Icons
```javascript
// Search for background image
const backgrounds = await search_stock_images({
query: "abstract gradient background",
perPage: 5
});
// Search for icons
const icons = await search_icons({
query: "social media",
perPage: 10
});
// Create social post
const design = await create_design({
name: "Social Media Post",
width: 1080,
height: 1080
});
// Add background
await add_element({
designId: design.id,
element: {
type: "image",
x: 0,
y: 0,
width: 1080,
height: 1080,
src: backgrounds.assets[0].url,
objectFit: "cover"
}
});
// Add overlay for text readability
await add_element({
designId: design.id,
element: {
type: "rectangle",
x: 0,
y: 0,
width: 1080,
height: 1080,
fill: "rgba(0, 0, 0, 0.4)"
}
});
// Add headline
await add_element({
designId: design.id,
element: {
type: "text",
x: 100,
y: 400,
width: 880,
height: 200,
text: "Follow Us on Social Media",
fontSize: 64,
fontFamily: "Montserrat",
fontWeight: "700",
textAlign: "center",
fill: "#ffffff"
}
});
// Add social media icons
const iconSize = 80;
const spacing = 120;
const startX = (1080 - (iconSize * 3 + spacing * 2)) / 2;
await add_element({
designId: design.id,
element: {
type: "svg",
x: startX,
y: 700,
width: iconSize,
height: iconSize,
src: "https://api.iconify.design/fa6-brands/facebook.svg",
objectFit: "contain"
}
});
await add_element({
designId: design.id,
element: {
type: "svg",
x: startX + iconSize + spacing,
y: 700,
width: iconSize,
height: iconSize,
src: "https://api.iconify.design/fa6-brands/twitter.svg",
objectFit: "contain"
}
});
await add_element({
designId: design.id,
element: {
type: "svg",
x: startX + (iconSize + spacing) * 2,
y: 700,
width: iconSize,
height: iconSize,
src: "https://api.iconify.design/fa6-brands/instagram.svg",
objectFit: "contain"
}
});
```
## Benefits for AI Assistants
1. **Complete Knowledge:** AI assistants now have full awareness of all element types and their capabilities
2. **Clear Limitations:** Styling limits are documented, preventing invalid combinations
3. **Dynamic Templates:** Clear guidance on creating dynamic elements for certificates, badges, etc.
4. **Asset Discovery:** Easy access to millions of images, icons, and graphics
5. **Best Practices:** Built-in design guidance and recommendations
6. **Error Prevention:** Comprehensive validation and helpful error messages
## Next Steps
To use these enhancements:
1. **Read the Guides:**
- Start with `ELEMENT_TYPES_GUIDE.md` for element documentation
- Review `ASSET_SEARCH_GUIDE.md` for asset search workflows
2. **Access Metadata:**
- Use the metadata resource: `canvelete://api/metadata/schema`
- Contains all element capabilities, fonts, shapes, and asset sources
3. **Try Examples:**
- See `EXAMPLES.md` for practical use cases
- Experiment with QR codes and barcodes
- Search for assets and add them to designs
4. **Build Templates:**
- Create dynamic templates with `{{variables}}`
- Use QR codes for verification
- Add barcodes for tracking
## Conclusion
These enhancements transform the Canvelete MCP server from a basic design API into a comprehensive design system with full element awareness, asset discovery, and dynamic template capabilities. AI assistants can now create sophisticated designs with confidence, knowing exactly what each element can do and how to style it properly.
