batch_resize
Resize a single image to multiple dimensions simultaneously for web optimization, saving each version with custom suffixes in your preferred format.
Instructions
Generate multiple sizes from one image
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| inputPath | Yes | Path to input image | |
| outputDir | Yes | Directory to save resized images | |
| sizes | Yes | Array of sizes to generate | |
| format | No | Output format for all sizes |
Implementation Reference
- src/index.ts:393-443 (handler)The handler function for the 'batch_resize' tool. It takes an input image, generates multiple resized versions based on the provided sizes array, optionally converts format, and saves them with suffixes in the output directory.
case 'batch_resize': { const { inputPath, outputDir, sizes, format } = args; await fs.mkdir(outputDir, { recursive: true }); const basename = path.basename(inputPath, path.extname(inputPath)); const results = []; for (const size of sizes) { const outputName = `${basename}${size.suffix}${format ? `.${format}` : path.extname(inputPath)}`; const outputPath = path.join(outputDir, outputName); let pipeline = sharp(inputPath) .resize({ width: size.width, height: size.height || undefined, fit: 'cover', withoutEnlargement: true }); if (format) { switch (format) { case 'jpeg': case 'jpg': pipeline = pipeline.jpeg({ quality: 80, progressive: true }); break; case 'png': pipeline = pipeline.png(); break; case 'webp': pipeline = pipeline.webp({ quality: 80 }); break; case 'avif': pipeline = pipeline.avif({ quality: 80 }); break; } } await pipeline.toFile(outputPath); results.push(outputPath); } return { content: [ { type: 'text', text: `Batch resize complete. Generated ${results.length} images:\n${results.join('\n')}` } ] }; } - src/index.ts:166-195 (schema)The input schema definition for the 'batch_resize' tool, specifying parameters like inputPath, outputDir, sizes array (with width, optional height, suffix), and optional format.
{ name: 'batch_resize', description: 'Generate multiple sizes from one image', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputDir: { type: 'string', description: 'Directory to save resized images' }, sizes: { type: 'array', items: { type: 'object', properties: { width: { type: 'number', description: 'Width in pixels' }, height: { type: 'number', description: 'Height in pixels' }, suffix: { type: 'string', description: 'Suffix to add to filename' } }, required: ['width', 'suffix'] }, description: 'Array of sizes to generate' }, format: { type: 'string', enum: ['jpeg', 'jpg', 'png', 'webp', 'avif'], description: 'Output format for all sizes' } }, required: ['inputPath', 'outputDir', 'sizes'] } } - src/index.ts:26-197 (registration)The ListToolsRequestHandler registration that includes the 'batch_resize' tool in the list of available tools.
server.setRequestHandler(ListToolsRequestSchema, async () => ({ tools: [ { name: 'resize_image', description: 'Resize an image to specified dimensions', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save resized image' }, width: { type: 'number', description: 'Target width in pixels' }, height: { type: 'number', description: 'Target height in pixels' }, fit: { type: 'string', enum: ['cover', 'contain', 'fill', 'inside', 'outside'], description: 'How the image should be resized to fit', default: 'cover' }, preserveAspectRatio: { type: 'boolean', description: 'Maintain original aspect ratio', default: true } }, required: ['inputPath', 'outputPath'] } }, { name: 'convert_format', description: 'Convert image between formats (jpeg, png, webp, avif)', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save converted image' }, format: { type: 'string', enum: ['jpeg', 'jpg', 'png', 'webp', 'avif'], description: 'Target format' }, quality: { type: 'number', minimum: 1, maximum: 100, description: 'Quality for lossy formats (1-100)', default: 80 } }, required: ['inputPath', 'outputPath', 'format'] } }, { name: 'crop_image', description: 'Crop an image to specified region', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save cropped image' }, left: { type: 'number', description: 'Left offset in pixels' }, top: { type: 'number', description: 'Top offset in pixels' }, width: { type: 'number', description: 'Width of crop area' }, height: { type: 'number', description: 'Height of crop area' } }, required: ['inputPath', 'outputPath', 'left', 'top', 'width', 'height'] } }, { name: 'compress_image', description: 'Compress an image with quality settings', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save compressed image' }, quality: { type: 'number', minimum: 1, maximum: 100, description: 'Compression quality (1-100)', default: 80 }, progressive: { type: 'boolean', description: 'Use progressive encoding (for JPEG)', default: true } }, required: ['inputPath', 'outputPath'] } }, { name: 'rotate_image', description: 'Rotate an image by specified degrees', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save rotated image' }, angle: { type: 'number', description: 'Rotation angle in degrees (positive = clockwise)' }, background: { type: 'string', description: 'Background color for exposed areas (hex or named color)', default: '#000000' } }, required: ['inputPath', 'outputPath', 'angle'] } }, { name: 'flip_image', description: 'Flip an image horizontally or vertically', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputPath: { type: 'string', description: 'Path to save flipped image' }, direction: { type: 'string', enum: ['horizontal', 'vertical', 'both'], description: 'Flip direction' } }, required: ['inputPath', 'outputPath', 'direction'] } }, { name: 'get_image_info', description: 'Get metadata and information about an image', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to image file' } }, required: ['inputPath'] } }, { name: 'batch_resize', description: 'Generate multiple sizes from one image', inputSchema: { type: 'object', properties: { inputPath: { type: 'string', description: 'Path to input image' }, outputDir: { type: 'string', description: 'Directory to save resized images' }, sizes: { type: 'array', items: { type: 'object', properties: { width: { type: 'number', description: 'Width in pixels' }, height: { type: 'number', description: 'Height in pixels' }, suffix: { type: 'string', description: 'Suffix to add to filename' } }, required: ['width', 'suffix'] }, description: 'Array of sizes to generate' }, format: { type: 'string', enum: ['jpeg', 'jpg', 'png', 'webp', 'avif'], description: 'Output format for all sizes' } }, required: ['inputPath', 'outputDir', 'sizes'] } } ] }));