{
  "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": 0,
      "iso_code": false
    },
    "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": 30
    },
    "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=30&setCountry=0&setCurrency=1",
    "agent": {
      "root": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/root?setCountry=0&setCurrency=1",
      "sitemap": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/sitemap?setCountry=0&setCurrency=1",
      "search": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/search?setCountry=0&setCurrency=1",
      "cart": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/cart?setCountry=0&setCurrency=1",
      "product": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=30&setCountry=0&setCurrency=1",
      "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=30&setCountry=0&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-silver-classics-carbon-medium-set-classical-guitar-strings-30.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-silver-classics-carbon-medium-set-classical-guitar-strings-30.html#product",
      "url": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-silver-classics-carbon-medium-set-classical-guitar-strings-30.html",
      "urls": {
        "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=30&setCountry=0&setCurrency=1",
        "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=30&setCountry=0&setCurrency=1",
        "human": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-silver-classics-carbon-medium-set-classical-guitar-strings-30.html"
      },

      "id_product": 30,
      "name": "OPTIMA Silver Classics Carbon Medium Set \u2013 Classical Guitar Strings",
      "description": "Carbon trebles meet silver-wound basses. The OPTIMA Silver Classics Carbon Medium set delivers precise tone, stable tuning, and long-lasting performance. Built for classical players who value clarity and control.",
      "full_description": "Classical guitar isn\u2019t about volume. It\u2019s about control. Every note matters. Every detail too.  The  OPTIMA Silver Classics Carbon Medium set  is built for players who actually listen to what they play.  The natural carbon trebles give you a fast response and clear projection. No softness. No blur.  The  silver-wound basses add warmth and depth . Balanced. Controlled. Reliable.  Thanks to the coating, the strings last longer and stay consistent over time. Less wear. More stability.  The medium tension gives you the balance:  Enough tension for precision. Enough comfort for long sessions.   Whether you play classical repertoire, modern pieces, or your own compositions \u2013 these strings stay out of your way.  No gimmicks. No distractions. Just clean tone. And control where it matters.",
      "additional_text": "Individual strings in this set  \n \n No.6 Konzertgitarre Natural Carbon E1 Medium \n No.6 Konzertgitarre Natural Carbon B\/H2 Medium \n No.6 Konzertgitarre Natural Carbon G3 Medium \n SILVER CLASSICS D4 Medium \n SILVER CLASSICS A5 Medium \n SILVER CLASSICS E6 Medium",

      "sku": "862\/270",
      "mpn": "862\/270",
      "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=0&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=0&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=0&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=0&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=0&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/highlight-5"
            }
          }                        ],

      "features": [
                            {
            "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": 1,
            "id_feature_value": 151,
            "name": "Product declaration",
            "value": "Consumables"
          },                    {
            "id_feature": 15,
            "id_feature_value": 130,
            "name": "Taxation",
            "value": "Standard Rate"
          },                    {
            "id_feature": 9,
            "id_feature_value": 194,
            "name": "Instrument",
            "value": "concert guitar"
          },                    {
            "id_feature": 9,
            "id_feature_value": 44,
            "name": "Instrument",
            "value": "Guitar"
          },                    {
            "id_feature": 9,
            "id_feature_value": 195,
            "name": "Instrument",
            "value": "acoustic guitar"
          },                    {
            "id_feature": 18,
            "id_feature_value": 177,
            "name": "Core material",
            "value": "Special Multifilament"
          },                    {
            "id_feature": 18,
            "id_feature_value": 157,
            "name": "Core material",
            "value": "Nylon"
          },                    {
            "id_feature": 19,
            "id_feature_value": 160,
            "name": "Wrapping \/ Material",
            "value": "Silver"
          },                    {
            "id_feature": 20,
            "id_feature_value": 176,
            "name": "Fastening",
            "value": "Blank"
          },                    {
            "id_feature": 21,
            "id_feature_value": 167,
            "name": "String gauge",
            "value": "Medium"
          },                    {
            "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": 1975,
            "cover": true,
            "position": 1,
            "legend": "OPTIMA Silver Classics Set Carbon Medium \u2013 Konzertgitarrensaiten",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/1975-large_default\/optima-silver-classics-carbon-medium-set-classical-guitar-strings.webp"
          },                    {
            "id_image": 1974,
            "cover": false,
            "position": 2,
            "legend": "OPTIMA Silver Classics Set Carbon Medium \u2013 Konzertgitarrensaiten",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/1974-large_default\/optima-silver-classics-carbon-medium-set-classical-guitar-strings.webp"
          }                        ],

            "shipping_weight": {
        "@type": "QuantitativeValue",
        "value": 0.02,
        "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": 30,
        "id_product_attribute": 0,
        "url": "https:\/\/musiccraft-instruments.com\/en\/p\/optima-silver-classics-carbon-medium-set-classical-guitar-strings-30.html",
        "price": 19.90,
        "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": 19.90,
          "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=30&qty=1&setCountry=0&setCurrency=1"
        }
              },

      "variant_offers": [
              ],

      "pricing": {
        "scope": "product",
        "default_id_product_attribute": 0,
        "delivery_country": false,
        "currency": "EUR",
        "currency_symbol": "\u20ac",
        "tax_rate": 19,
        "use_taxes": true,
        "show_taxes": true,
        "price_tax_included": 19.90,
        "price_tax_excluded": 16.72,
        "price_without_reduction": 16.72,
        "reduction_percent": 0,
        "reduction_price": 0      },

      "availability": {
        "status": "https://schema.org/InStock",
        "orderable": true,
        "available_for_order": true,
        "show_price": true,
        "quantity": 10,
        "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."
      }
    }
  }
}