Handle Checkout Flow

Use this skill when the task involves building, extending, or debugging the steps a customer takes from adding an item to cart through to receiving an order confirmation.

When to Use

• building/fixing the purchase funnel
• cart, tax/shipping, discount/coupon logic
• order confirmation step
• end-to-end checkout from cart to payment
• agentic checkout under ACP/UCP protocols
• Vietnam Decree 248/2026/ND-CP compliance

Core Rules