{
  "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": 86
    },
    "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=86&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=86&setCountry=1&setCurrency=1",
      "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=86&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\/cello-20849-klaus-karin-wunderlich-86.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\/cello-20849-klaus-karin-wunderlich-86.html#product",
      "url": "https:\/\/musiccraft-instruments.com\/en\/p\/cello-20849-klaus-karin-wunderlich-86.html",
      "urls": {
        "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=86&setCountry=1&setCurrency=1",
        "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=86&setCountry=1&setCurrency=1",
        "human": "https:\/\/musiccraft-instruments.com\/en\/p\/cello-20849-klaus-karin-wunderlich-86.html"
      },

      "id_product": 86,
      "name": "Cello 20849 \u2013 Built for tone with personality",
      "description": "Handcrafted master cello by Klaus Wunderlich based on Guarneri or Stradivari models with aged tonewood, powerful depth and outstanding character.",
      "full_description": "Some instruments simply play cleanly. Others develop a voice of their own.   The Cello 20849 by Klaus Wunderlich clearly belongs to the second category.   This high-quality master cello is entirely handcrafted and combines traditional violin-making craftsmanship with a tone full of warmth, depth and expression. Built on Klaus Wunderlich\u2019s own interpretation of classic Guarneri or Stradivari models, this is not a sterile factory instrument \u2014 it is a cello with true personality.  The carefully selected aged tonewood gives the instrument remarkable openness and maturity in sound. The beautifully flamed maple and finely crafted spruce top create a highly responsive feel with impressive tonal depth and projection.  Every note carries substance. Every phrase develops character.   This cello doesn\u2019t only react to technique. It reacts to expression.   The lower register feels warm, rich and powerful, while the upper register remains clear, singing and highly nuanced. That balance is exactly what makes great string instruments so special: controlled yet emotionally open.  The fine varnish highlights the exceptional craftsmanship and gives the instrument an elegant and lively appearance. Premium ebony fittings complete the instrument, alongside the traditional label and branded stamp \u201cKlaus Wunderlich\u201d.  Available in 4\/4 or 7\/8 size, this cello is designed for advanced musicians, ambitious cellists and players with high tonal expectations.  For people who don\u2019t just want to play music correctly. But tell stories with it.   Not polished. Not interchangeable. Real.   Handcrafted by Klaus Wunderlich. Traditional German master workshop craftsmanship.",
      "additional_text": "Handcrafted master cello by Klaus Wunderlich \n Own model based on Guarneri or Stradivari designs \n Available in 4\/4 and 7\/8 size \n Selected aged tonewood \n Beautifully flamed maple \n Finely crafted spruce top \n Entirely handcrafted construction \n Premium ebony fittings \n Fine hand-applied varnish \n Signed with label and branded stamp \u201cKlaus Wunderlich\u201d \n Warm, projecting and expressive tonal character \n Designed for advanced and ambitious players \n Traditional craftsmanship \n Made in Germany",

      "sku": "208\/20849",
      "mpn": "208\/20849",
      "ean13": "",
      "upc": "",

      "brand": {
        "@type": "Brand",
        "name": "Klaus & Karin Wunderlich Geigenbaumeister",
        "url": "https:\/\/musiccraft-instruments.com\/en\/klaus-karin-wunderlich-geigenbaumeister_15"      },

      "manufacturer": {
        "@type": "Organization",
        "id_manufacturer": 15,
        "name": "Klaus & Karin Wunderlich Geigenbaumeister",
        "url": "https:\/\/musiccraft-instruments.com\/en\/klaus-karin-wunderlich-geigenbaumeister_15"      },

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

      "main_category": {
        "id_category": 23,
        "name": "Cellos",
        "link_rewrite": "cellos",
        "urls": {
          "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=23&setCountry=1&setCurrency=1",
          "human": "https:\/\/musiccraft-instruments.com\/en\/cellos-23"
        }
      },

      "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": 3,
            "name": "Product declaration",
            "value": "Single item"
          },                    {
            "id_feature": 15,
            "id_feature_value": 130,
            "name": "Taxation",
            "value": "Standard Rate"
          },                    {
            "id_feature": 9,
            "id_feature_value": 325,
            "name": "Instrument",
            "value": "Cello"
          },                    {
            "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": 2,
            "id_feature_value": 502,
            "name": "Badges",
            "value": "Different variants"
          }                        ],

      "agent_faqs": [
              ],

      "images": [
                            {
            "id_image": 2137,
            "cover": true,
            "position": 1,
            "legend": "Cello 20849 \u2013 Built for tone with personality",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/2137-large_default\/cello-20849-klaus-karin-wunderlich.webp"
          },                    {
            "id_image": 2141,
            "cover": false,
            "position": 2,
            "legend": "Cello 20849 \u2013 Built for tone with personality",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/2141-large_default\/cello-20849-klaus-karin-wunderlich.webp"
          },                    {
            "id_image": 2140,
            "cover": false,
            "position": 3,
            "legend": "Cello 20849 \u2013 Built for tone with personality",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/2140-large_default\/cello-20849-klaus-karin-wunderlich.webp"
          },                    {
            "id_image": 2138,
            "cover": false,
            "position": 4,
            "legend": "Cello 20849 \u2013 Built for tone with personality",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/2138-large_default\/cello-20849-klaus-karin-wunderlich.webp"
          },                    {
            "id_image": 2139,
            "cover": false,
            "position": 5,
            "legend": "Cello 20849 \u2013 Built for tone with personality",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/2139-large_default\/cello-20849-klaus-karin-wunderlich.webp"
          }                        ],

            "shipping_weight": {
        "@type": "QuantitativeValue",
        "value": 4,
        "unitCode": "KGM",
        "note": "Shipping weight, not product content."
      },
      
      
      "variant_model": {
        "has_variants": true,
        "variant_count": 2,
        "default_id_product_attribute": 170
      },

      "offers": {
        "@type": "Offer",
        "offer_scope": "default_variant",
        "id_product": 86,
        "id_product_attribute": 170,
        "url": "https:\/\/musiccraft-instruments.com\/en\/p\/cello-20849-klaus-karin-wunderlich-86.html",
        "price": 16040.00,
        "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": 16040.00,
          "priceCurrency": "EUR",
          "valueAddedTaxIncluded": true        }
              },

      "variant_offers": [
                            {
            "@type": "Offer",
            "id_product": 86,
            "id_product_attribute": 170,
            "is_default": true,
            "sku": "208\/20849-44",
            "url": "https:\/\/musiccraft-instruments.com\/en\/p\/cello-20849-klaus-karin-wunderlich-86.html",
            "image": "https:\/\/cdn2.musiccraft-instruments.com\/1-large_default\/cello-20849-klaus-karin-wunderlich.webp",

                                                                                                                                                                                                                                                "attributes": [
                                              {
                  "group_id": 10,
                  "group_name": "Size",
                  "value": "4\/4 Size"
                }                                          ],
            "attribute_summary": "Size: 4\/4 Size",

            "price": {
              "delivery_country": "DE",
              "currency": "EUR",
              "currency_symbol": "\u20ac",
              "tax_rate": 19,
              "tax_excluded": 13478.99,
              "tax_included": 16040.00,
              "without_reduction_tax_excluded": 13478.99,
              "without_reduction_tax_included": 16040.00,
              "value_added_tax_included": true            },

            
            "availability": "https://schema.org/InStock",
            "quantity": 5,
            "minimal_quantity": 1,
            "action": {
              "type": "add_to_cart",
              "method": "GET",
              "enabled": true,
              "quantity": 1,
              "url": "https:\/\/musiccraft-instruments.com\/en\/shopping-cart?add=1&id_product=86&id_product_attribute=170&qty=1&setCountry=1&setCurrency=1"
            }
          },                    {
            "@type": "Offer",
            "id_product": 86,
            "id_product_attribute": 171,
            "is_default": false,
            "sku": "208\/20849-78",
            "url": "https:\/\/musiccraft-instruments.com\/en\/p\/cello-20849-klaus-karin-wunderlich-86.html",
            "image": "https:\/\/cdn2.musiccraft-instruments.com\/1-large_default\/cello-20849-klaus-karin-wunderlich.webp",

                                                                                                                                                                                                                                                "attributes": [
                                              {
                  "group_id": 10,
                  "group_name": "Size",
                  "value": "7\/8 Size"
                }                                          ],
            "attribute_summary": "Size: 7\/8 Size",

            "price": {
              "delivery_country": "DE",
              "currency": "EUR",
              "currency_symbol": "\u20ac",
              "tax_rate": 19,
              "tax_excluded": 13478.99,
              "tax_included": 16040.00,
              "without_reduction_tax_excluded": 13478.99,
              "without_reduction_tax_included": 16040.00,
              "value_added_tax_included": true            },

            
            "availability": "https://schema.org/InStock",
            "quantity": 5,
            "minimal_quantity": 1,
            "action": {
              "type": "add_to_cart",
              "method": "GET",
              "enabled": true,
              "quantity": 1,
              "url": "https:\/\/musiccraft-instruments.com\/en\/shopping-cart?add=1&id_product=86&id_product_attribute=171&qty=1&setCountry=1&setCurrency=1"
            }
          }                        ],

      "pricing": {
        "scope": "default_variant",
        "default_id_product_attribute": 170,
        "delivery_country": "DE",
        "currency": "EUR",
        "currency_symbol": "\u20ac",
        "tax_rate": 19,
        "use_taxes": true,
        "show_taxes": true,
        "price_tax_included": 16040.00,
        "price_tax_excluded": 13478.99,
        "price_without_reduction": 13478.99,
        "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": true,
        "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."
      }
    }
  }
}