browser_wait_for
Automate browser interactions by waiting for specific text to appear, disappear, or a set duration to pass using structured input parameters in Playwright MCP.
Instructions
Wait for text to appear or disappear or a specified time to pass
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| text | No | The text to wait for | |
| textGone | No | The text to wait for to disappear | |
| time | No | The time to wait in seconds |
Implementation Reference
- src/tools/wait.ts:35-65 (handler)The main handler function implementing the browser_wait_for tool. It handles waiting for time, text visibility, or text disappearance using Playwright APIs.handle: async (context, params) => { if (!params.text && !params.textGone && !params.time) throw new Error('Either time, text or textGone must be provided'); const code: string[] = []; if (params.time) { code.push(`await new Promise(f => setTimeout(f, ${params.time!} * 1000));`); await new Promise(f => setTimeout(f, Math.min(10000, params.time! * 1000))); } const tab = context.currentTabOrDie(); const locator = params.text ? tab.page.getByText(params.text).first() : undefined; const goneLocator = params.textGone ? tab.page.getByText(params.textGone).first() : undefined; if (goneLocator) { code.push(`await page.getByText(${JSON.stringify(params.textGone)}).first().waitFor({ state: 'hidden' });`); await goneLocator.waitFor({ state: 'hidden' }); } if (locator) { code.push(`await page.getByText(${JSON.stringify(params.text)}).first().waitFor({ state: 'visible' });`); await locator.waitFor({ state: 'visible' }); } return { code, captureSnapshot, waitForNetwork: false, }; },
- src/tools/wait.ts:23-33 (schema)Schema definition for the browser_wait_for tool, including name, description, and Zod input schema.schema: { name: 'browser_wait_for', title: 'Wait for', description: 'Wait for text to appear or disappear or a specified time to pass', inputSchema: z.object({ time: z.number().optional().describe('The time to wait in seconds'), text: z.string().optional().describe('The text to wait for'), textGone: z.string().optional().describe('The text to wait for to disappear'), }), type: 'readOnly', },
- src/tools.ts:36-52 (registration)Registration of the wait tool (spread from wait(true)) as part of the snapshotTools array.export const snapshotTools: Tool<any>[] = [ ...common(true), ...console, ...dialogs(true), ...files(true), ...install, ...keyboard(true), ...navigate(true), ...network, ...pdf, ...screenshot, ...snapshot, ...tabs(true), ...testing, ...video, ...wait(true), ];
- src/tools.ts:54-69 (registration)Registration of the wait tool (spread from wait(false)) as part of the visionTools array.export const visionTools: Tool<any>[] = [ ...common(false), ...console, ...dialogs(false), ...files(false), ...install, ...keyboard(false), ...navigate(false), ...network, ...pdf, ...tabs(false), ...testing, ...video, ...vision, ...wait(false), ];