{ "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": 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": 272 }, "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=272&setCountry=0&setCurrency=1", "agent": { "root": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/root?setCountry=0&setCurrency=1", "sitemap": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/sitemap?setCountry=0&setCurrency=1", "search": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/search?setCountry=0&setCurrency=1", "cart": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/cart?setCountry=0&setCurrency=1", "product": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=272&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=272&setCountry=0&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\/migma-zitherschluessel-palisander-vierkant-272.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\/migma-zitherschluessel-palisander-vierkant-272.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-palisander-vierkant-272.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=272&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=272&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-palisander-vierkant-272.html" }, "id_product": 272, "name": "Migma Zitherschl\u00fcssel mit Palisandergriff \u2013 Vierkant", "description": "Stimmschl\u00fcssel f\u00fcr Zithern mit Palisandergriff und glattem Schaft. Vierkant-Aufnahme f\u00fcr Wirbel mit \u00d8 5,5 mm, hergestellt in Deutschland.", "full_description": "Der Zitherschl\u00fcssel von Migma ist ein praktisches Werkzeug zum pr\u00e4zisen Stimmen von Zithern. Die Vierkant-Aufnahme ist f\u00fcr Wirbel mit einem Durchmesser von 5,5 mm ausgelegt und erm\u00f6glicht ein kontrolliertes Drehen der Stimmwirbel beim Einstellen der gew\u00fcnschten Tonh\u00f6he. Der Griff aus Palisander verleiht dem Zitherschl\u00fcssel eine klassische Holzoptik und sorgt f\u00fcr eine angenehme Handhabung. Der glatte Schaft verbindet den Holzgriff mit der Vierkant-Aufnahme und macht den Stimmschl\u00fcssel zu einem unkomplizierten Zubeh\u00f6r f\u00fcr die regelm\u00e4\u00dfige Instrumentenpflege und Stimmung. Der Zitherschl\u00fcssel wird in Deutschland hergestellt und eignet sich als zuverl\u00e4ssiges Werkzeug f\u00fcr Zitherspieler, Musikschulen und Werkst\u00e4tten.", "additional_text": "Stimmschl\u00fcssel f\u00fcr Zithern \n Aufnahme: Vierkant \n F\u00fcr Wirbel: \u00d8 5,5 mm \n Griff: Palisander \n Glatter Schaft \n Made in Germany \n Hersteller: Migma e.G. \n Modell: Zitherschl\u00fcssel", "sku": "866\/109", "mpn": "866\/109", "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": 73, "name": "Stimmger\u00e4te", "link_rewrite": "stimmgeraete", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=73&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/stimmgeraete-73" } }, "categories": [ { "id_category": 4, "name": "Instrumente", "link_rewrite": "instrumente", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=4&setCountry=0&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=0&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=0&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=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/highlight-5" } } ], "features": [ { "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": 394, "name": "Instrument", "value": "Zither" }, { "id_feature": 28, "id_feature_value": 329, "name": "Bestandteile", "value": "Feinstimmer" }, { "id_feature": 28, "id_feature_value": 336, "name": "Bestandteile", "value": "Stimmst\u00e4be" }, { "id_feature": 22, "id_feature_value": 173, "name": "Einsatzbereich", "value": "B\u00fchne" }, { "id_feature": 22, "id_feature_value": 172, "name": "Einsatzbereich", "value": "Fortgeschrittene" }, { "id_feature": 22, "id_feature_value": 171, "name": "Einsatzbereich", "value": "Anf\u00e4nger" }, { "id_feature": 18, "id_feature_value": 395, "name": " Kernmaterial", "value": "Palisander " } ], "agent_faqs": [ ], "images": [ { "id_image": 2674, "cover": true, "position": 1, "legend": "Migma Zitherschl\u00fcssel mit Palisandergriff \u2013 Vierkant", "url": "https:\/\/cdn2.musiccraft-instruments.com\/2674-large_default\/migma-zitherschluessel-palisander-vierkant.webp" }, { "id_image": 2675, "cover": false, "position": 2, "legend": "Migma Zitherschl\u00fcssel mit Palisandergriff \u2013 Vierkant", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2675-large_default\/migma-zitherschluessel-palisander-vierkant.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 0.05, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 1, "default_id_product_attribute": 643 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 272, "id_product_attribute": 643, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-palisander-vierkant-272.html", "price": 8.20, "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": 8.20, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 272, "id_product_attribute": 643, "is_default": true, "sku": "866\/109", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-palisander-vierkant-272.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/1-large_default\/migma-zitherschluessel-palisander-vierkant.webp", "attributes": [ { "group_id": 22, "group_name": "Loch", "value": "Vierkant" } ], "attribute_summary": "Loch: Vierkant", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 6.89, "tax_included": 8.20, "without_reduction_tax_excluded": 6.89, "without_reduction_tax_included": 8.20, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 10, "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=272&id_product_attribute=643&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 643, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 8.20, "price_tax_excluded": 6.89, "price_without_reduction": 6.89, "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." } } } }