puppeteer_screenshot
Capture webpage or element screenshots with customizable dimensions using CSS selectors, enabling precise visual extraction for browser automation tasks.
Instructions
Take a screenshot of the current page or a specific element
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| height | No | Height in pixels (default: 600) | |
| name | Yes | Name for the screenshot | |
| selector | No | CSS selector for element to screenshot | |
| width | No | Width in pixels (default: 800) |
Implementation Reference
- index.ts:182-224 (handler)Handler for puppeteer_screenshot tool: sets viewport, captures screenshot of page or specified element, stores it in screenshots map, notifies resource change, returns success message and image content or error if failed.
case "puppeteer_screenshot": { const width = args.width ?? 800; const height = args.height ?? 600; await page.setViewport({ width, height }); const screenshot = await (args.selector ? (await page.$(args.selector))?.screenshot({ encoding: "base64" }) : page.screenshot({ encoding: "base64", fullPage: false })); if (!screenshot) { return { content: [ { type: "text", text: args.selector ? `Element not found: ${args.selector}` : "Screenshot failed", }, ], isError: true, }; } screenshots.set(args.name, screenshot as string); server.notification({ method: "notifications/resources/list_changed", }); return { content: [ { type: "text", text: `Screenshot '${args.name}' taken at ${width}x${height}`, } as TextContent, { type: "image", data: screenshot, mimeType: "image/png", } as ImageContent, ], isError: false, }; } - index.ts:30-52 (schema)Input schema definition for puppeteer_screenshot tool within the TOOLS array, specifying required 'name' and optional 'selector', 'width', 'height' parameters.
{ name: "puppeteer_screenshot", description: "Take a screenshot of the current page or a specific element", inputSchema: { type: "object", properties: { name: { type: "string", description: "Name for the screenshot" }, selector: { type: "string", description: "CSS selector for element to screenshot", }, width: { type: "number", description: "Width in pixels (default: 800)", }, height: { type: "number", description: "Height in pixels (default: 600)", }, }, required: ["name"], }, },