Playwright MCP

Instructions

Implementation Reference

• src/tools/keyboard.ts:33-49 (handler)

  The handler function that executes the browser_press_key tool logic. It presses the specified key on the current browser tab's page using Playwright's keyboard.press method, generates accompanying code snippet, and returns an action object with network wait.

  handle: async (context, params) => {
    const tab = context.currentTabOrDie();
  
    const code = [
      `// Press ${params.key}`,
      `await page.keyboard.press('${params.key}');`,
    ];
  
    const action = () => tab.page.keyboard.press(params.key);
  
    return {
      code,
      action,
      captureSnapshot,
      waitForNetwork: true
    };
  },

• src/tools/keyboard.ts:23-31 (schema)

  JSON schema definition for the browser_press_key tool, including name, title, description, Zod input schema requiring a 'key' string, and destructive type.

  schema: {
    name: 'browser_press_key',
    title: 'Press a key',
    description: 'Press a key on the keyboard',
    inputSchema: z.object({
      key: z.string().describe('Name of the key to press or a character to generate, such as `ArrowLeft` or `a`'),
    }),
    type: 'destructive',
  },

• src/tools/keyboard.ts:52-54 (registration)

  Exports the pressKey tool factory as the default export, registering it to be included in the tools list when imported.

  export default (captureSnapshot: boolean) => [
    pressKey(captureSnapshot),
  ];