{
  "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": 1,
      "iso_code": "de",
      "url_prefix": "\/de\/"
    },
    "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": 148
    },
    "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\/de\/mcc\/mcc_agent\/product?id_product=148&setCountry=1&setCurrency=1",
    "agent": {
      "root": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/root?setCountry=1&setCurrency=1",
      "sitemap": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/sitemap?setCountry=1&setCurrency=1",
      "search": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/search?setCountry=1&setCurrency=1",
      "cart": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/cart?setCountry=1&setCurrency=1",
      "product": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=148&setCountry=1&setCurrency=1",
      "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=148&setCountry=1&setCurrency=1"
    },
    "human": {
      "home": "https:\/\/musiccraft-instruments.com\/",
      "sitemap": "https:\/\/musiccraft-instruments.com\/de\/sitemap",
      "search": "https:\/\/musiccraft-instruments.com\/de\/suche",
      "product": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-viola-148.html",
      "cart": "https:\/\/musiccraft-instruments.com\/de\/bestellung",
      "contact": "https:\/\/musiccraft-instruments.com\/de\/kontaktiere-uns"
    }
  },

  "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\/de\/p\/endknopf-viola-148.html#product",
      "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-viola-148.html",
      "urls": {
        "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=148&setCountry=1&setCurrency=1",
        "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=148&setCountry=1&setCurrency=1",
        "human": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-viola-148.html"
      },

      "id_product": 148,
      "name": "Endknopf f\u00fcr Viola",
      "description": "Endknopf f\u00fcr Viola zur sicheren Befestigung von Saitenhalter und Einh\u00e4ngesaite.",
      "full_description": "Ein stabiles Instrument beginnt oft bei den kleinen Dingen.  Der Endknopf sorgt daf\u00fcr, dass Saitenhalter und Einh\u00e4ngesaite sicher sitzen und die Spannung zuverl\u00e4ssig gehalten wird. Genau die Art von Detail, die im Alltag den Unterschied macht.  Dieser Endknopf f\u00fcr Viola eignet sich ideal f\u00fcr Reparaturen, den Austausch bestehender Teile oder den professionellen Instrumentenbau.  Solides Zubeh\u00f6r f\u00fcr Instrumente, die gespielt werden wollen.",
      "additional_text": "Endknopf f\u00fcr Viola \n f\u00fcr 4\/4 + 3\/4 Gr\u00f6\u00dfe \n Sicherer Halt f\u00fcr Saitenhalter und Einh\u00e4ngesaite \n Geeignet f\u00fcr Reparatur und Instrumentenbau \n Klassische Bauform f\u00fcr Streichinstrumente \n Zuverl\u00e4ssige Stabilit\u00e4t im Spielbetrieb",

      "sku": "821\/037",
      "mpn": "821\/037",
      "ean13": "",
      "upc": "",

      "brand": {
        "@type": "Brand",
        "name": "MIGMA eG",
        "url": "https:\/\/musiccraft-instruments.com\/de\/migma-eg_21"      },

      "manufacturer": {
        "@type": "Organization",
        "id_manufacturer": 21,
        "name": "MIGMA eG",
        "url": "https:\/\/musiccraft-instruments.com\/de\/migma-eg_21"      },

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

      "main_category": {
        "id_category": 81,
        "name": "Endkn\u00f6pfe",
        "link_rewrite": "endknoepfe",
        "urls": {
          "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=81&setCountry=1&setCurrency=1",
          "human": "https:\/\/musiccraft-instruments.com\/de\/endknoepfe-81"
        }
      },

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

      "features": [
                            {
            "id_feature": 1,
            "id_feature_value": 150,
            "name": "Produkttyp",
            "value": "Ersatzteile"
          },                    {
            "id_feature": 1,
            "id_feature_value": 1,
            "name": "Produkttyp",
            "value": "Zubeh\u00f6r"
          },                    {
            "id_feature": 15,
            "id_feature_value": 130,
            "name": "Besteuerung",
            "value": "Standard Rate"
          },                    {
            "id_feature": 9,
            "id_feature_value": 149,
            "name": "Instrument",
            "value": "Viola"
          },                    {
            "id_feature": 28,
            "id_feature_value": 332,
            "name": "Bestandteile",
            "value": "Endkn\u00f6pfe"
          },                    {
            "id_feature": 29,
            "id_feature_value": 356,
            "name": "Gr\u00f6\u00dfe f\u00fcr",
            "value": "4\/4 + 3\/4 Gr\u00f6\u00dfe"
          },                    {
            "id_feature": 18,
            "id_feature_value": 358,
            "name": " Kernmaterial",
            "value": "Ebenholz"
          }                        ],

      "agent_faqs": [
              ],

      "images": [
                            {
            "id_image": 2377,
            "cover": true,
            "position": 1,
            "legend": "Endknopf f\u00fcr Viola",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/2377-large_default\/endknopf-viola.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": 148,
        "id_product_attribute": 0,
        "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-viola-148.html",
        "price": 2.90,
        "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": 2.90,
          "priceCurrency": "EUR",
          "valueAddedTaxIncluded": true        }
        ,

        
        "action": {
          "type": "add_to_cart",
          "method": "GET",
          "enabled": true,
          "quantity": 1,
          "url": "https:\/\/musiccraft-instruments.com\/de\/warenkorb?add=1&id_product=148&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": 2.90,
        "price_tax_excluded": 2.44,
        "price_without_reduction": 2.44,
        "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."
      }
    }
  }
}