{
  "agent_meta": {
    "type": "agent_product",
    "schema": "mcc_agent",
    "schema_version": "1.1",
    "generated_at": "2026-11-07",
    "source_of_truth": "MCC Commerce Engine"
  },

  "request_context": {
    "language": {
      "id_lang": 2,
      "iso_code": "en",
      "url_prefix": "\/en\/"
    },
    "delivery_country": {
      "id_country": 1,
      "iso_code": "DE"
    },
    "currency": {
      "id_currency": 1,
      "iso_code": "EUR",
      "name": "Euro",
      "symbol": "\u20ac"
    },
    "complete": true
  },

  "context_switching": {
    "available": true,
    "mode": "on_demand_resolver",
    "stateless": true,
    "resolver": "links.agent.contexts",
    "fetch_when": "requested_context_differs",
    "dimensions": [
      "language",
      "delivery_country",
      "currency"
    ],
    "unspecified_dimensions": "preserve_request_context",
    "selection": {
      "match": "exact",
      "source": "available_contexts",
      "result": "available_contexts[].target_url"
    },
    "target": {
      "resource": "product",
      "id_product": 9
    },
    "full_context_in_target_url": true,
    "requires_session_persistence": false,
    "manual_url_construction_allowed": false,
    "instruction": "When a requested language, delivery country or currency differs from request_context, fetch links.agent.contexts. Preserve dimensions not explicitly changed by the user, select the exact matching entry and follow target_url unchanged."
  },

  "platform": {
    "name": "MCC Agentic Commerce",
    "version": "1.0",
    "commerce_engine": "MCC Commerce Engine",
    "agent_interface": "MCC Agentic API"
  },

  "instructions": {
    "purpose": "This endpoint provides the complete machine-readable representation of one product in the active language, delivery-country and currency context.",
    "rules": [
      "All prices, taxes, availability and actions in data.product apply only to request_context.",
      "When variants exist, select the matching entry from data.product.variant_offers and use its exact price, availability and action URL.",
      "Do not infer a variant price from the product-level price or from another variant.",
      "Use the exact action.url supplied by the selected offer. Do not construct add-to-cart URLs manually.",
      "When language, delivery country or currency must change, fetch links.agent.contexts and follow the exact matching target_url unchanged.",
      "Prices, taxes, inventory and availability are calculated by the shop.",
      "Do not invent unavailable product, variant, price, stock, shipping or checkout information."
    ]
  },

  "capabilities": {
    "root": true,
    "sitemap": true,
    "search": true,
    "product": true,
    "contexts": true,
    "category": true,
    "cart": true,
    "cms_page": false,
    "checkout": false
  },

  "links": {
    "self": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=9&setCountry=1&setCurrency=1",
    "agent": {
      "root": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/root?setCountry=1&setCurrency=1",
      "sitemap": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/sitemap?setCountry=1&setCurrency=1",
      "search": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/search?setCountry=1&setCurrency=1",
      "cart": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/cart?setCountry=1&setCurrency=1",
      "product": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=9&setCountry=1&setCurrency=1",
      "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=9&setCountry=1&setCurrency=1"
    },
    "human": {
      "home": "https:\/\/musiccraft-instruments.com\/",
      "sitemap": "https:\/\/musiccraft-instruments.com\/en\/sitemap",
      "search": "https:\/\/musiccraft-instruments.com\/en\/search",
      "product": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light-9.html",
      "cart": "https:\/\/musiccraft-instruments.com\/en\/order",
      "contact": "https:\/\/musiccraft-instruments.com\/en\/contact-us"
    }
  },

  "commerce_model": {
    "pricing": "server_calculated",
    "tax": "server_calculated",
    "shipping": "server_calculated",
    "inventory": "live",
    "currencies": "context_based",
    "languages": "url_based"
  },

  "data": {
    "product": {
      "@context": "https://schema.org",
      "@type": "Product",
      "@id": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light-9.html#product",
      "url": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light-9.html",
      "urls": {
        "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=9&setCountry=1&setCurrency=1",
        "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=9&setCountry=1&setCurrency=1",
        "human": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light-9.html"
      },

      "id_product": 9,
      "name": "OPTIMA 24K Gold Strings 2028.RL Set \u2013 Electric Guitar Strings Regular Light",
      "description": "24K gold-plated electric guitar strings built to last. The OPTIMA 2028.RL Regular Light set delivers consistent tone, smooth playability, and long-lasting performance. Perfect for rhythm and lead \u2013 for players who take their sound seriously and don\u2019t want to change strings every few sessions.",
      "full_description": "Not every string makes an impression. These do. And they stay.\u00a0  The  OPTIMA 24K Gold Strings 2028.RL set isn\u2019t your average string pack . This is gear for players who actually care how things feel.  The plain strings are made from high-quality nickel-plated steel and coated with real 24K gold. The wound strings are built on a hex core with gold-plated wrap wire for added stability and durability.   What you get:   A clear, stable tone that doesn\u2019t fade after a few sessions. No corrosion. No tarnishing. Less string changes.  Under your fingers?  Smooth. Direct. Reliable.   The  Regular Light gauge (.010\u2013.046)  hits the sweet spot: Flexible enough for lead, solid enough for rhythm.  Whether you\u2019re just starting out or have been playing for years \u2013 these strings don\u2019t hold you back.  They respond to what you put in.  Also a solid choice for players with nickel allergies, as the gold coating fully protects the surface. OPTIMA has over 100 years of string-making experience. But this isn\u2019t about tradition.   It\u2019s about what happens when you play.",
      "additional_text": "String gauges  \n \n e' \u2013 .010 \n h \u2013 .013 \n g \u2013 .017 \n d \u2013 .026w \n A \u2013 .035w \n E \u2013 .046w",

      "sku": "862\/2028.RL",
      "mpn": "862\/2028.RL",
      "ean13": "",
      "upc": "",

      "brand": {
        "@type": "Brand",
        "name": "OPTIMA Musiksaiten GmbH",
        "url": "https:\/\/musiccraft-instruments.com\/en\/optima-musiksaiten-gmbh_10"      },

      "manufacturer": {
        "@type": "Organization",
        "id_manufacturer": 10,
        "name": "OPTIMA Musiksaiten GmbH",
        "url": "https:\/\/musiccraft-instruments.com\/en\/optima-musiksaiten-gmbh_10"      },

      "supplier": {
        "@type": "Organization",
        "id_supplier": 1,
        "name": "Migma e.G."
      },

      "main_category": {
        "id_category": 47,
        "name": "Guitar Strings",
        "link_rewrite": "guitar-strings",
        "urls": {
          "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=47&setCountry=1&setCurrency=1",
          "human": "https:\/\/musiccraft-instruments.com\/en\/guitar-strings-47"
        }
      },

      "categories": [
                            {
            "id_category": 4,
            "name": "Instruments",
            "link_rewrite": "instruments",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=4&setCountry=1&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/instruments-4"
            }
          },                    {
            "id_category": 6,
            "name": "Equipment & Essentials",
            "link_rewrite": "equipment-essentials",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=6&setCountry=1&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/equipment-essentials-6"
            }
          },                    {
            "id_category": 7,
            "name": "Restoration",
            "link_rewrite": "restoration",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=7&setCountry=1&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/restoration-7"
            }
          },                    {
            "id_category": 5,
            "name": "Highlight",
            "link_rewrite": "highlight",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=5&setCountry=1&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/highlight-5"
            }
          }                        ],

      "features": [
                            {
            "id_feature": 1,
            "id_feature_value": 151,
            "name": "Product declaration",
            "value": "Consumables"
          },                    {
            "id_feature": 1,
            "id_feature_value": 1,
            "name": "Product declaration",
            "value": "Utensils"
          },                    {
            "id_feature": 1,
            "id_feature_value": 169,
            "name": "Product declaration",
            "value": "Set"
          },                    {
            "id_feature": 15,
            "id_feature_value": 130,
            "name": "Taxation",
            "value": "Standard Rate"
          },                    {
            "id_feature": 9,
            "id_feature_value": 44,
            "name": "Instrument",
            "value": "Guitar"
          },                    {
            "id_feature": 9,
            "id_feature_value": 193,
            "name": "Instrument",
            "value": "electric guitar"
          },                    {
            "id_feature": 22,
            "id_feature_value": 171,
            "name": "Intended Use",
            "value": "Beginner"
          },                    {
            "id_feature": 22,
            "id_feature_value": 173,
            "name": "Intended Use",
            "value": "Stage"
          },                    {
            "id_feature": 22,
            "id_feature_value": 172,
            "name": "Intended Use",
            "value": "Intermediate"
          },                    {
            "id_feature": 22,
            "id_feature_value": 174,
            "name": "Intended Use",
            "value": "Studio"
          },                    {
            "id_feature": 18,
            "id_feature_value": 184,
            "name": "Core material",
            "value": "Nickel-plated steel"
          },                    {
            "id_feature": 19,
            "id_feature_value": 159,
            "name": "Wrapping \/ Material",
            "value": "gilded (24K Gold)"
          },                    {
            "id_feature": 20,
            "id_feature_value": 163,
            "name": "Fastening",
            "value": "Ball"
          },                    {
            "id_feature": 21,
            "id_feature_value": 203,
            "name": "String gauge",
            "value": "Regular Light"
          },                    {
            "id_feature": 23,
            "id_feature_value": 178,
            "name": "String",
            "value": "E1"
          },                    {
            "id_feature": 23,
            "id_feature_value": 180,
            "name": "String",
            "value": "G3"
          },                    {
            "id_feature": 23,
            "id_feature_value": 182,
            "name": "String",
            "value": "A5"
          },                    {
            "id_feature": 23,
            "id_feature_value": 179,
            "name": "String",
            "value": "B2 (H)"
          },                    {
            "id_feature": 23,
            "id_feature_value": 181,
            "name": "String",
            "value": "D4"
          },                    {
            "id_feature": 23,
            "id_feature_value": 183,
            "name": "String",
            "value": "E6"
          }                        ],

      "agent_faqs": [
              ],

      "images": [
                            {
            "id_image": 1968,
            "cover": true,
            "position": 1,
            "legend": "OPTIMA 24K Gold Strings 2028.RL \u2013 Electric Guitar Strings Regular Light",
            "url": "https:\/\/cdn2.musiccraft-instruments.com\/1968-large_default\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light.webp"
          },                    {
            "id_image": 1967,
            "cover": false,
            "position": 2,
            "legend": "OPTIMA 24K Gold Strings 2028.RL \u2013 Electric Guitar Strings Regular Light",
            "url": "https:\/\/cdn2.musiccraft-instruments.com\/1967-large_default\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light.webp"
          }                        ],

            "shipping_weight": {
        "@type": "QuantitativeValue",
        "value": 0.07,
        "unitCode": "KGM",
        "note": "Shipping weight, not product content."
      },
      
      
      "variant_model": {
        "has_variants": false,
        "variant_count": 0,
        "default_id_product_attribute": 0
      },

      "offers": {
        "@type": "Offer",
        "offer_scope": "product",
        "id_product": 9,
        "id_product_attribute": 0,
        "url": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-24k-gold-strings-2028rl-set-electric-guitar-strings-regular-light-9.html",
        "price": 29.90,
        "priceCurrency": "EUR",
        "availability": "https://schema.org/InStock",
        "itemCondition": "https://schema.org/NewCondition",
        "seller": {
          "@type": "Organization",
          "name": "musiccraft - instruments",
          "url": "https:\/\/musiccraft-instruments.com\/",
          "telephone": "+49 (0) 34 20 63 14 888"        },
        "priceSpecification": {
          "@type": "PriceSpecification",
          "price": 29.90,
          "priceCurrency": "EUR",
          "valueAddedTaxIncluded": true        }
        ,

        
        "action": {
          "type": "add_to_cart",
          "method": "GET",
          "enabled": true,
          "quantity": 1,
          "url": "https:\/\/musiccraft-instruments.com\/en\/shopping-cart?add=1&id_product=9&qty=1&setCountry=1&setCurrency=1"
        }
              },

      "variant_offers": [
              ],

      "pricing": {
        "scope": "product",
        "default_id_product_attribute": 0,
        "delivery_country": "DE",
        "currency": "EUR",
        "currency_symbol": "\u20ac",
        "tax_rate": 19,
        "use_taxes": true,
        "show_taxes": true,
        "price_tax_included": 29.90,
        "price_tax_excluded": 25.13,
        "price_without_reduction": 25.13,
        "reduction_percent": 0,
        "reduction_price": 0      },

      "availability": {
        "status": "https://schema.org/InStock",
        "orderable": true,
        "available_for_order": true,
        "show_price": true,
        "quantity": 9,
        "minimal_quantity": 1,
        "variant_stock_available": false,
        "allow_buy_when_out_of_stock": false,
        "stock_management": false,
        "is_virtual": false      }
    },

    "actions": {
      "add_to_cart": {
        "type": "cart_add",
        "method": "GET",
        "requires_context": true,
        "required_context_parameters": [
          "setCountry",
          "setCurrency"
        ],
        "instruction": "Use the exact action.url from data.product.offers for a simple product or from the selected data.product.variant_offers entry. Respect action.enabled and action.quantity."
      }
    }
  }
}