plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "lowcart",
  "version": "1.2.1",
  "description": "Finds the final delivered price of a product at online stores, read from each store's own checkout, with shipping, tax and import fees.",
  "author": {
    "name": "Rumesh Wanigasooriya",
    "email": "hello@getlowcart.com",
    "url": "https://getlowcart.com"
  },
  "homepage": "https://getlowcart.com",
  "keywords": [
    "shopping",
    "prices",
    "shipping",
    "import fees",
    "delivered price"
  ],
  "extensions": {
    "com.openai": {
      "interface": {
        "displayName": "Lowcart",
        "shortDescription": "Delivered price comparison",
        "longDescription": "Lowcart finds what a product really costs delivered to you. Name a product and a delivery country, and optionally a ZIP or postcode, and Lowcart checks online stores built on Shopify that sell it. For each store it reads the total from the store's own checkout for that country: item price, shipping, sales tax or VAT, import fees and any confirmed discount code. Results are ranked by final delivered total, and each one says whether import duties are already paid, paid at checkout, or may be billed at the door.\n\nLowcart also explains the sales tax, VAT, GST and import duty rules for orders shipped to the US, the UK, Australia, New Zealand and every EU country.\n\nWho it is for: anyone about to buy something online who wants the real total before paying, especially when ordering from another country.\n\nLimitations: Lowcart covers stores built on Shopify, so some products and stores are not included. Prices, shipping and codes change, so confirm the total at the store before paying. Amazon and other marketplace links are read for the product name only. Lowcart never places orders, never asks for payment details and needs no account.",
        "developerName": "Rumesh Wanigasooriya",
        "category": "Other",
        "capabilities": [
          "Compare delivered prices across stores",
          "Explain import fees, VAT and sales tax"
        ],
        "websiteURL": "https://getlowcart.com/ai",
        "supportURL": "https://getlowcart.com/support",
        "privacyPolicyURL": "https://getlowcart.com/privacy",
        "termsOfServiceURL": "https://getlowcart.com/terms",
        "defaultPrompt": [
          "What will a Stanley Quencher 40 oz cost delivered to Australia?",
          "Where is a Ninja CREAMi cheapest delivered to ZIP 90210?",
          "Will I pay import fees ordering skincare to the UK?"
        ],
        "brandColor": "#16A34A",
        "brandColorDark": "#22C55E",
        "composerIcon": "./assets/icon.png",
        "logo": "./assets/logo.png"
      },
      "review": {
        "test_cases": {
          "positive": [
            {
              "description": "Delivered price comparison to another country",
              "prompt": "What will a Stanley Quencher 40 oz really cost delivered to Australia?",
              "tools_triggered": "find_delivered_price",
              "expected_behavior": "Lists stores ranked by final delivered total in Australian dollars (with US dollars alongside), says for each store whether import fees may apply, and links to each store."
            },
            {
              "description": "US delivered price with sales tax for a ZIP code",
              "prompt": "Where is a Ninja CREAMi cheapest delivered to ZIP 90210, including sales tax?",
              "tools_triggered": "find_delivered_price",
              "expected_behavior": "Lists US stores ranked by delivered total for that ZIP code, including shipping and sales tax where the store's checkout charges it."
            },
            {
              "description": "UK delivered price including VAT",
              "prompt": "Compare UGG Tasman slippers delivered to the UK, including shipping and VAT. Which store is cheapest?",
              "tools_triggered": "find_delivered_price",
              "expected_behavior": "Lists stores ranked by delivered total in pounds, names the cheapest, and says which stores ship locally and which may bill import fees at the door."
            },
            {
              "description": "EU delivery with customs question",
              "prompt": "Where is COSRX Advanced Snail 96 Mucin Power Essence cheapest delivered to Germany, and will I pay customs?",
              "tools_triggered": "find_delivered_price",
              "expected_behavior": "Lists stores ranked by delivered total in euros and states for each whether duties are none (ships locally), paid at checkout, or may be billed at the door."
            },
            {
              "description": "Import fee rules for a country",
              "prompt": "What import fees and taxes do I pay on things ordered to Australia from overseas stores?",
              "tools_triggered": "import_fee_rules",
              "expected_behavior": "Explains that Australian prices include 10% GST, that overseas stores charge GST at checkout on orders up to A$1,000, and that customs charges GST, duty and fees above that, with the official source."
            }
          ],
          "negative": [
            {
              "description": "Placing an order or paying is out of scope",
              "prompt": "Buy the cheapest Stanley Quencher for me and pay with my saved card."
            },
            {
              "description": "Unrelated request should not use Lowcart",
              "prompt": "What's the weather in London tomorrow?"
            },
            {
              "description": "Order tracking is out of scope",
              "prompt": "Track my Amazon order and tell me when it arrives."
            }
          ]
        },
        "demo_recording_url": "https://getlowcart.com/demo",
        "commerce": false,
        "commerce_description": "Lowcart does not sell products or process payments. It shows delivered prices and links to each store's own website, where the shopper buys."
      },
      "publication": {
        "countries": [],
        "release_notes": "First release: delivered price comparison read from each store's checkout, and import fee rules for the US, UK, Australia, New Zealand and the EU."
      },
      "apps": "./.app.json"
    }
  }
}