Playwright MCP Server

Instructions

Implementation Reference

• src/tools/browser/navigation.ts:96-106 (handler)

  GoBackTool class implementing the execute method for playwright_go_back tool, which calls page.goBack()
  export class GoBackTool extends BrowserToolBase { /** * Execute the go back tool */ async execute(args: any, context: ToolContext): Promise<ToolResponse> { return this.safeExecute(context, async (page) => { await page.goBack(); return createSuccessResponse("Navigated back in browser history"); }); } }
• src/tools.ts:370-377 (schema)

  Tool schema definition including name, description, and empty input schema for playwright_go_back
  name: "playwright_go_back", description: "Navigate back in browser history", inputSchema: { type: "object", properties: {}, required: [], }, },
• src/toolHandler.ts:540-541 (registration)

  Registration in the main tool handler switch case, dispatching to goBackTool.execute
  case "playwright_go_back": return await goBackTool.execute(args, context);
• src/toolHandler.ts:343-343 (registration)

  Instantiation of the goBackTool instance during tool initialization
  if (!goBackTool) goBackTool = new GoBackTool(server);
• src/tools.ts:467-467 (registration)

  Inclusion in BROWSER_TOOLS array for conditional browser launching
  "playwright_go_back",