Breeze

Cancel an existing cart by ID. Cart is deleted; subsequent get_cart on the same ID will return not_found. PRECONDITIONS — all must hold or DO NOT call: (1) a cart already exists in this conversation, returned by a prior create_cart / get_cart / update_cart call; (2) the user has explicitly asked to discard that cart. Never call on the first turn. Never call to 'reset' or 'begin again' — start a new shopping flow with search_catalog instead. Never invent or guess a cart ID; only pass an ID returned verbatim by a prior tool call in this same conversation.

cancel_cart

Cancel an existing checkout by ID. Sets status to `canceled` (record persists for 24h, NOT deleted). Cannot cancel an already-completed or already-canceled checkout — those return an `invalid_state` envelope. PRECONDITIONS — all must hold or DO NOT call: (1) a checkout already exists in this conversation, returned by a prior create_checkout / get_checkout / update_checkout call; (2) the user has explicitly asked to discard that checkout. Never call on the first turn. Never call to 'reset' or 'begin again' — start a new shopping flow with search_catalog instead. Never invent or guess a checkout ID; only pass an ID returned verbatim by a prior tool call in this same conversation.

cancel_checkout

Create a new cart with one or more line items. Use after the user picks specific variants from prior tool results. Returns the cart ID and totals — remember the ID for follow-up update_cart / cancel_cart calls in this conversation.

create_cart

Start a checkout session. Use after the user is ready to buy. Prefer passing `cart_id` from the open cart in this conversation — the server pulls line_items/buyer/context from the cart and ignores any overlapping fields you also pass. If no cart exists, pass `line_items` directly. Status comes back `ready_for_complete` immediately. The response includes a `continue_url` — this is the payment link the user MUST open to complete the order. The storefront collects buyer details (name, email, shipping address) and payment there — DO NOT ask the user for any of those in chat. After calling this tool, your job is to surface the link to the user verbatim. Do NOT attempt to call any tool to complete the payment — payment happens on the storefront, not through this agent. Remember the returned checkout ID for follow-up update_checkout / cancel_checkout calls.

create_checkout

Read-only state check on a cart created in this conversation. PRECONDITION: a cart already exists in this conversation, returned by a prior create_cart / update_cart call. If no cart exists yet, do NOT call — there is nothing to read; start a shopping flow with search_catalog instead. Skip if you already have the latest cart object cached in context from create_cart/update_cart on this turn — there's no concurrent editor invalidating it.

get_cart

Read the current state of an existing checkout by ID. Use to remind yourself of status / line items / totals / `continue_url` before computing the next action, or to check post-payment order status. If status is `ready_for_complete`, surface the `continue_url` to the user as the payment link.

get_checkout

Fetch full details for a specific product by ID, including all variants, option values, availability per variant, and media. Call this when the user asks about a specific product you already found via search_catalog or lookup_catalog.

get_product

Batch-fetch multiple products by ID (up to 50). Use when you need details on a specific list of products — e.g., to compare, or to refresh details on products mentioned earlier in the conversation.

lookup_catalog

Search the product catalog. Use when the user wants to find, browse, or discover products. Supports natural-language queries, category/price filters, and pagination.

search_catalog

Replace the line items / context / buyer on an existing cart by ID. Full replacement — pass the FULL desired line_items list, not a delta. To remove an item, omit it. To add an item, append it. To change quantity, change its quantity field. PRECONDITION: a cart already exists in this conversation, returned by a prior create_cart / get_cart call. Never call on the first turn or with a synthesized ID — start a new shopping flow with search_catalog → create_cart instead. If you don't have the current line_items in context, call get_cart first; never guess them.

update_cart