Zypin MCP

Instructions

Implementation Reference

• tools-playwright.js:168-171 (handler)

  MCP tool handler for 'screenshot' tool. Receives filename parameter, calls browser.screenshot(), and returns success message with file path.

  handler: async ({ filename }) => {
    const path = await browser.screenshot(filename);
    return { success: true, message: `Screenshot saved to ${path}` };
  }

• tools-playwright.js:161-167 (schema)

  Input schema for screenshot tool. Accepts optional 'filename' string parameter.

  inputSchema: {
    type: 'object',
    properties: {
      filename: { type: 'string', description: 'Optional filename for the screenshot' }
    },
    required: []
  },

• browser.js:131-136 (helper)

  Core screenshot implementation in SimpleBrowser class. Ensures browser is launched, generates filename if not provided, takes screenshot with Playwright, returns path.

  async screenshot(filename) {
    await this.ensureLaunched();
    const path = filename || `screenshot-${Date.now()}.png`;
    await this.page.screenshot({ path });
    return path;
  }

• tools.js:18-21 (registration)

  Includes all Playwright tools (including screenshot) from createPlaywrightTools into the main createTools() array via spread operator.

  const playwrightTools = createPlaywrightTools(browser);
  
  return [
    ...playwrightTools,

• index.js:75-77 (registration)

  Creates complete tools list via createTools(browser) and registers generic MCP handlers (CallToolRequestSchema and ListToolsRequestSchema) that dispatch to individual tool handlers.

  const tools = createTools(browser);
  
  // Handle tool execution requests from MCP clients