GTmetrix GTmetrix is a website performance analysis tool. It's used by web developers and website owners to analyze page speed and identify optimization opportunities. Official docs: https://gtmetrix.com/api/ GTmetrix Overview - Website - Analysis - Report Use action names and parameters as needed. Working with GTmetrix This skill uses the Membrane CLI to interact with GTmetrix. Membrane handles authentication and credentials refresh automatically — so you can focus on the integration logic rather than auth plumbing. Install the CLI Install the Membrane CLI so you can run from the terminal: A…