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+# Next.js Commerce — add a product to the cart
+
+A Kane CLI natural-language end-to-end test that opens the Commerce demo
+storefront, opens a product, adds it to the cart, and verifies the cart updates.
+Runs in a real browser (Kane CLI also automates mobile apps on the iOS Simulator
+and Android Emulator).
+
+## Add a product to the cart
+Go to https://demo.vercel.store.
+Wait for the storefront to load.
+Click on the first product.
+If size or color options are shown, select the first available option for each.
+Click the "Add To Cart" button.
+Assert that the cart updates to show 1 item (a cart quantity badge or a cart drawer listing the item).