Chrome Debug MCP Server

Instructions

Implementation Reference

• src/browserSession.ts:538-549 (handler)

  Core implementation of resize_browser tool: parses 'width,height' string, sets page viewport, and resizes the browser window using CDP Browser domain commands.

  async resize(size: string): Promise<BrowserActionResult> {
  	return this.doAction(async (page) => {
  		const [width, height] = size.split(",").map(Number);
  		const session = await page.createCDPSession();
  		await page.setViewport({ width, height });
  		const { windowId } = await session.send("Browser.getWindowForTarget");
  		await session.send("Browser.setWindowBounds", {
  			bounds: { width, height },
  			windowId,
  		});
  	});
  }

• src/index.ts:140-153 (registration)

  Tool registration in listTools handler, including name, description, and input schema definition.

  {
  	name: "resize_browser",
  	description: "调整浏览器窗口大小",
  	inputSchema: {
  		type: "object",
  		properties: {
  			size: {
  				type: "string",
  				description: "窗口大小，格式为 'width,height'",
  			},
  		},
  		required: ["size"],
  	},
  },

• src/index.ts:218-223 (handler)

  Dispatch handler in CallToolRequestSchema that validates input and calls BrowserSession.resize().

  case "resize_browser":
  	if (!args?.size) {
  		throw new Error("size参数是必需的");
  	}
  	result = await this.browserSession.resize(args.size as string);
  	break;

• src/index.ts:319-320 (helper)

  Helper function providing success message for resize_browser tool.

  case "resize_browser":
  	return "✅ 浏览器窗口大小调整完成";