What’s ECE-Tools and why does it matter?

ECE-Tools (Magento\CloudPatches + magento/ece-tools composer package) is the deploy/build orchestrator for ACC. It runs your .magento.app.yaml + .magento.env.yaml hooks, generates static content, applies Adobe’s cloud patches, and configures redis/varnish/fastly. Tuning ECE-Tools is the difference between a 5-minute and a 40-minute deploy. Most stores never look at it. We do.