{ "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": 812 }, "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=812&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=812&setCountry=1&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=812&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\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.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\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=812&setCountry=1&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=812&setCountry=1&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html" }, "id_product": 812, "name": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "description": "Kaum gespielte 4\/4-Violine mit Zettel Carl Weigandt, vermutlich aus den 1940er Jahren, im Guarneri-del-Ges\u00f9-Modell. Mit Evah-Pirazzi-Saiten.", "full_description": "Diese kaum gespielte Violine in 4\/4-Gr\u00f6\u00dfe tr\u00e4gt einen Zettel mit der Angabe Carl Weigandt und stammt laut Produktbeschreibung aus Brund\u00f6bra im Vogtland. Das Instrument wurde etwa Mitte der 1940er Jahre gebaut und ist als Einzelst\u00fcck im Guarneri-del-Ges\u00f9-Modell ausgef\u00fchrt. Die Violine besitzt einen br\u00e4unlich-schwarzen Lack und ist mit Evah-Pirazzi-Saiten ausgestattet. Sie wurde von einem Handwerksmeister gepr\u00fcft und aufbereitet und steht damit als gebrauchtes, fachm\u00e4nnisch kontrolliertes Instrument zur Verf\u00fcgung. Das Instrument ist wahlweise einzeln oder im Set mit Etui und Bogen erh\u00e4ltlich. Die Angaben zu Carl Weigandt, Brund\u00f6bra und dem Entstehungszeitraum werden entsprechend der Produktbeschreibung wiedergegeben.", "additional_text": "Produkttyp: kaum gespielte Violine \n Gr\u00f6\u00dfe: 4\/4 \n Zustand: gebraucht \n Einzelst\u00fcck \n Modell: Guarneri del Ges\u00f9 \n Zettel: Carl Weigandt \n Herkunftsangabe: Brund\u00f6bra im Vogtland \n Baujahr: ca. Mitte der 1940er Jahre \n Lackierung: br\u00e4unlich-schwarz \n Saiten: Evah Pirazzi \n Vom Handwerksmeister gepr\u00fcft und aufbereitet \n Erh\u00e4ltlich als einzelnes Instrument oder im Set mit Etui und Bogen", "sku": "901\/3285", "mpn": "901\/3285", "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": 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" } }, "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": 499, "name": "Produkttyp", "value": "Historisch & Restauriert" }, { "id_feature": 1, "id_feature_value": 3, "name": "Produkttyp", "value": "Einzelartikel" }, { "id_feature": 15, "id_feature_value": 130, "name": "Besteuerung", "value": "Standard Rate" }, { "id_feature": 9, "id_feature_value": 148, "name": "Instrument", "value": "Violine" }, { "id_feature": 2, "id_feature_value": 502, "name": "Besonderheit", "value": "Verschiedene Varianten" }, { "id_feature": 2, "id_feature_value": 501, "name": "Besonderheit", "value": "Unikat" }, { "id_feature": 18, "id_feature_value": 361, "name": " Kernmaterial", "value": "Buchsbaum" }, { "id_feature": 4, "id_feature_value": 154, "name": "Kondition", "value": "aufbereitet" }, { "id_feature": 4, "id_feature_value": 153, "name": "Kondition", "value": "gebraucht" } ], "agent_faqs": [ ], "images": [ { "id_image": 3827, "cover": true, "position": 1, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3827-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" }, { "id_image": 3826, "cover": false, "position": 2, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3826-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" }, { "id_image": 3828, "cover": false, "position": 3, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3828-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" }, { "id_image": 3823, "cover": false, "position": 4, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn2.musiccraft-instruments.com\/3823-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" }, { "id_image": 3824, "cover": false, "position": 5, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3824-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" }, { "id_image": 3825, "cover": false, "position": 6, "legend": "Carl Weigandt Violine 4\/4 \u2013 Guarneri-del-Ges\u00f9-Modell mit Etui und Bogen", "url": "https:\/\/cdn2.musiccraft-instruments.com\/3825-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 2, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 2, "default_id_product_attribute": 1125 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 812, "id_product_attribute": 1125, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html", "price": 2300.00, "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": 2300.00, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 812, "id_product_attribute": 1125, "is_default": true, "sku": "901\/3285-1", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp", "attributes": [ { "group_id": 28, "group_name": "Variante", "value": "Instrument einzeln" } ], "attribute_summary": "Variante: Instrument einzeln", "price": { "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 1932.77, "tax_included": 2300.00, "without_reduction_tax_excluded": 1932.77, "without_reduction_tax_included": 2300.00, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 1, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/de\/warenkorb?add=1&id_product=812&id_product_attribute=1125&qty=1&setCountry=1&setCurrency=1" } }, { "@type": "Offer", "id_product": 812, "id_product_attribute": 1124, "is_default": false, "sku": "901\/3285-2", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/carl-weigandt-violine-4-4-guarneri-del-gesu-812.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/carl-weigandt-violine-4-4-guarneri-del-gesu.webp", "attributes": [ { "group_id": 28, "group_name": "Variante", "value": "Instrument im Set mit Etui und Bogen" } ], "attribute_summary": "Variante: Instrument im Set mit Etui und Bogen", "price": { "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 2016.81, "tax_included": 2400.00, "without_reduction_tax_excluded": 2016.81, "without_reduction_tax_included": 2400.00, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 1, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/de\/warenkorb?add=1&id_product=812&id_product_attribute=1124&qty=1&setCountry=1&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 1125, "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 2300.00, "price_tax_excluded": 1932.77, "price_without_reduction": 1932.77, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 2, "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." } } } }