{ "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": 271 }, "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=271&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=271&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=271&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-gekroepfter-kopf-271.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-gekroepfter-kopf-271.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-gekroepfter-kopf-271.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=271&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=271&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-gekroepfter-kopf-271.html" }, "id_product": 271, "name": "Migma Zitherschl\u00fcssel mit gekr\u00f6pftem Kopf \u2013 Vierkant oder Stern", "description": "Stimmschl\u00fcssel f\u00fcr Zithern mit gekr\u00f6pftem Kopf und Wei\u00dfbuchengriff. F\u00fcr Wirbel mit \u00d8 5,5 mm, als Vierkant oder Stern erh\u00e4ltlich.", "full_description": "Der Zitherschl\u00fcssel von Migma ist ein praktisches Werkzeug zum Stimmen von Zithern und eignet sich f\u00fcr Wirbel mit einem Durchmesser von 5,5 mm. Der gekr\u00f6pfte Kopf erleichtert die Handhabung beim Drehen der Stimmwirbel und unterst\u00fctzt ein kontrolliertes Einstellen der gew\u00fcnschten Tonh\u00f6he. Der Griff wird aus Wei\u00dfbuche gefertigt und bietet eine angenehme Handhabung beim Stimmen des Instruments. Je nach Ausf\u00fchrung der verwendeten Stimmwirbel ist der Zitherschl\u00fcssel wahlweise mit Vierkant- oder Stern-Aufnahme erh\u00e4ltlich. Der Zitherschl\u00fcssel wird in Deutschland hergestellt. Die Vierkant-Ausf\u00fchrung wird unter der Artikelnummer 866\/113a gef\u00fchrt, die Variante mit Stern-Aufnahme unter der Artikelnummer 866\/113b.", "additional_text": "Stimmschl\u00fcssel f\u00fcr Zithern \n F\u00fcr Wirbel: \u00d8 5,5 mm \n Griff: Wei\u00dfbuche \n Gekr\u00f6pfter Kopf \n Ausf\u00fchrung Vierkant: Art.-Nr. 866\/113a \n Ausf\u00fchrung Stern: Art.-Nr. 866\/113b \n Made in Germany \n Hersteller: Migma e.G. \n Modell: Zitherschl\u00fcssel", "sku": "866\/113", "mpn": "866\/113", "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": 2, "id_feature_value": 502, "name": "Besonderheit", "value": "Verschiedene Varianten" }, { "id_feature": 18, "id_feature_value": 402, "name": " Kernmaterial", "value": "Wei\u00dfbuche" } ], "agent_faqs": [ ], "images": [ { "id_image": 2672, "cover": true, "position": 1, "legend": "Migma Zitherschl\u00fcssel mit gekr\u00f6pftem Kopf \u2013 Vierkant oder Stern", "url": "https:\/\/cdn1.musiccraft-instruments.com\/2672-large_default\/migma-zitherschluessel-gekroepfter-kopf.webp" }, { "id_image": 2673, "cover": false, "position": 2, "legend": "Migma Zitherschl\u00fcssel mit gekr\u00f6pftem Kopf \u2013 Vierkant oder Stern", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2673-large_default\/migma-zitherschluessel-gekroepfter-kopf.webp" } ], "variant_model": { "has_variants": true, "variant_count": 2, "default_id_product_attribute": 642 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 271, "id_product_attribute": 642, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-gekroepfter-kopf-271.html", "price": 16.20, "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": 16.20, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 271, "id_product_attribute": 642, "is_default": true, "sku": "866\/113b", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-gekroepfter-kopf-271.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/migma-zitherschluessel-gekroepfter-kopf.webp", "attributes": [ { "group_id": 22, "group_name": "Loch", "value": "Stern" } ], "attribute_summary": "Loch: Stern", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 13.61, "tax_included": 16.20, "without_reduction_tax_excluded": 13.61, "without_reduction_tax_included": 16.20, "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=271&id_product_attribute=642&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 271, "id_product_attribute": 641, "is_default": false, "sku": " 866\/113a", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/migma-zitherschluessel-gekroepfter-kopf-271.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/migma-zitherschluessel-gekroepfter-kopf.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": 11.43, "tax_included": 13.60, "without_reduction_tax_excluded": 11.43, "without_reduction_tax_included": 13.60, "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=271&id_product_attribute=641&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 642, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 16.20, "price_tax_excluded": 13.61, "price_without_reduction": 13.61, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 20, "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." } } } }