pinch-app.com

Pinch provides Australian grocery price data (Woolworths, Coles, Aldi, Harris Farm). SHOPPING LISTS (2 or more items): call build_basket ONCE with the full list of item strings. Include any size or quantity in the string ("2L", "1kg", "12 pack"). build_basket searches every item server-side, picks the cheapest product per item, and returns the basket with per-retailer options plus a share_url. Do NOT call decompose_product, search_products, or batch_search per item for a list. IMPORTANT: before rendering, review every pick for correctness (the search engine uses keyword matching and sometimes returns wrong products). Follow the VALIDATION instructions in the build_basket tool description. SINGLE ITEM or a price question: use search_products, get_cheapest, compare_prices, or get_price_history. decompose_product, batch_search and save_basket are advanced tools for overriding build_basket's pick on one specific item only; do not use them for a normal shopping list. Guidance: default to cheapest-first; only filter to a brand or retailer if the user explicitly asks. A product sold loose or priced per-each (loose produce, a single bar) is a valid pick. Honour requested sizes and counts.