browser_console_messages
Read-only
Retrieve console messages from web pages to debug JavaScript errors, warnings, and logs during browser automation.
Instructions
Returns all console messages
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| level | No | Level of the console messages to return. Each level includes the messages of more severe levels. Defaults to "info". | info |
Implementation Reference
- src/tools/console.ts:29-42 (handler)The handler function that executes the browser_console_messages tool. It gets console messages from the current tab, formats them as a log, and returns an action to display the log as text content.
handle: async context => { const messages = context.currentTabOrDie().consoleMessages(); const log = messages.map(message => `[${message.type().toUpperCase()}] ${message.text()}`).join('\n'); return { code: [`// <internal code to get console messages>`], action: async () => { return { content: [{ type: 'text', text: log }] }; }, captureSnapshot: false, waitForNetwork: false, }; }, - src/tools/console.ts:22-28 (schema)The schema definition for the browser_console_messages tool, including name, title, description, empty input schema (no parameters), and readOnly type.
schema: { name: 'browser_console_messages', title: 'Get console messages', description: 'Returns all console messages', inputSchema: z.object({}), type: 'readOnly', }, - src/tools.ts:35-50 (registration)Registration of the browser_console_messages tool via inclusion of ...console in the snapshotTools array, which collects core tools for non-vision mode.
export const snapshotTools: Tool<any>[] = [ ...common(true), ...console, ...dialogs(true), ...files(true), ...install, ...keyboard(true), ...navigate(true), ...network, ...pdf, ...screenshot, ...snapshot, ...tabs(true), ...testing, ...wait(true), ]; - src/tools.ts:52-66 (registration)Registration of the browser_console_messages tool via inclusion of ...console in the visionTools array, which collects tools for vision mode.
export const visionTools: Tool<any>[] = [ ...common(false), ...console, ...dialogs(false), ...files(false), ...install, ...keyboard(false), ...navigate(false), ...network, ...pdf, ...tabs(false), ...testing, ...vision, ...wait(false), ]; - src/connection.ts:30-31 (registration)Final tool list construction in MCP connection, selecting and filtering tools including browser_console_messages based on config.vision and capabilities.
const allTools = config.vision ? visionTools : snapshotTools; const tools = allTools.filter(tool => !config.capabilities || tool.capability === 'core' || config.capabilities.includes(tool.capability));