{ "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": 132 }, "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=132&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=132&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=132&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\/wittner-edelstahleinhaengesaite-viola-819040va-132.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\/wittner-edelstahleinhaengesaite-viola-819040va-132.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wittner-edelstahleinhaengesaite-viola-819040va-132.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=132&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=132&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/wittner-edelstahleinhaengesaite-viola-819040va-132.html" }, "id_product": 132, "name": "Wittner Edelstahleinh\u00e4ngesaite f\u00fcr Viola \u2013 Stabilit\u00e4t f\u00fcr gr\u00f6\u00dfere Klangk\u00f6rper", "description": "Die Wittner Edelstahleinh\u00e4ngesaite f\u00fcr Viola sorgt f\u00fcr eine pr\u00e4zise und belastbare Verbindung zwischen Saitenhalter und Instrument.", "full_description": "Die Viola arbeitet mit Spannung. Und genau deshalb muss jedes Detail zuverl\u00e4ssig funktionieren. Die Wittner Edelstahleinh\u00e4ngesaite f\u00fcr Viola wurde entwickelt, um den Saitenhalter stabil und pr\u00e4zise mit dem Instrument zu verbinden. Die robuste Edelstahlkonstruktion bietet hohe Belastbarkeit und unterst\u00fctzt gleichzeitig ein ausgewogenes Setup mit kontrollierter Ansprache. Gerade bei gr\u00f6\u00dferen Instrumenten wie der Viola wirken st\u00e4rkere Kr\u00e4fte auf die Verbindung zwischen Saitenhalter und Korpus. Eine hochwertige Einh\u00e4ngesaite sorgt hier f\u00fcr Stabilit\u00e4t, saubere Positionierung und langfristige Zuverl\u00e4ssigkeit. Erh\u00e4ltlich f\u00fcr verschiedene Viola-Gr\u00f6\u00dfen eignet sich die Edelstahleinh\u00e4ngesaite sowohl f\u00fcr Sch\u00fcler- als auch Konzertinstrumente. Unscheinbar verbaut. Wichtig f\u00fcr das ganze Instrument.", "additional_text": "Wittner Edelstahleinh\u00e4ngesaite f\u00fcr Viola \n Gr\u00f6\u00dfe:\u00a038 - 41,5 cm \n Geeignet f\u00fcr verschiedene Viola-Gr\u00f6\u00dfen \n Robuste Edelstahlkonstruktion \n Pr\u00e4zise und stabile Verbindung \n Unterst\u00fctzt ausgewogenes Schwingungsverhalten \n Ideal f\u00fcr Reparatur, Austausch und moderne Setups", "sku": "819\/040 VA", "mpn": "819\/040 VA", "ean13": "", "upc": "", "brand": { "@type": "Brand", "name": "Wittner \u2013 Division of GEWA music GmbH", "url": "https:\/\/musiccraft-instruments.com\/de\/wittner-division-of-gewa-music-gmbh_19" }, "manufacturer": { "@type": "Organization", "id_manufacturer": 19, "name": "Wittner \u2013 Division of GEWA music GmbH", "url": "https:\/\/musiccraft-instruments.com\/de\/wittner-division-of-gewa-music-gmbh_19" }, "supplier": { "@type": "Organization", "id_supplier": 1, "name": "Migma e.G." }, "main_category": { "id_category": 79, "name": "Einh\u00e4ngesaiten", "link_rewrite": "einhaengesaiten", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=79&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/einhaengesaiten-79" } }, "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": 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": 330, "name": "Bestandteile", "value": "Einh\u00e4ngesaiten" }, { "id_feature": 29, "id_feature_value": 351, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "39,5 cm - 41,5 cm" }, { "id_feature": 29, "id_feature_value": 352, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "38,0 cm - 39,5 cm" } ], "agent_faqs": [ ], "images": [ { "id_image": 2360, "cover": true, "position": 1, "legend": "Wittner Edelstahleinh\u00e4ngesaite f\u00fcr Viola \u2013 Stabilit\u00e4t f\u00fcr gr\u00f6\u00dfere Klangk\u00f6rper", "url": "https:\/\/cdn1.musiccraft-instruments.com\/2360-large_default\/wittner-edelstahleinhaengesaite-viola-819040va.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 0.05, "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": 132, "id_product_attribute": 0, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wittner-edelstahleinhaengesaite-viola-819040va-132.html", "price": 17.90, "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": 17.90, "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=132&qty=1&setCountry=0&setCurrency=1" } }, "variant_offers": [ ], "pricing": { "scope": "product", "default_id_product_attribute": 0, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 17.90, "price_tax_excluded": 15.04, "price_without_reduction": 15.04, "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." } } } }