{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Duesenberg HWB1 Original Tremolo Arm – Standard",
    "brand": "Duesenberg",
    "model": "HWB1 Original Tremolo Arm",
    "mpn": null,
    "gtins": null,
    "handle": "ca-gear-duesenberg-hwb1-original-tremolo-arm-standard-dc7c6a9de8",
    "url": "https://envoy-music.myshopify.com/products/ca-gear-duesenberg-hwb1-original-tremolo-arm-standard-dc7c6a9de8",
    "catalog_product_id": "catalog:68ad8dde3cfb",
    "lane": "parts",
    "product_object": "tremolo arm"
  },
  "offer": {
    "price": 32.99,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "mid",
    "source_verified_at": "2026-07-11T00:17:15Z"
  },
  "specifications": {"category":"parts","subcategory":"parts","category_path":"parts"},
  "connectivity": null,
  "power": null,
  "included_items": null,
  "required_accessories": ["model-appropriate mounting hardware","installation tools or qualified technician"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": null,
    "who_should_skip": null,
    "fit_notes": "Best suited to a repair or custom-build project with known dimensions and compatibility requirements.\n\nWho it is for: Builders and repair buyers who can verify fit, measurements, mounting pattern, and required installation work.\n\nWho should skip it: Skip it if the target instrument, dimensions, or installation requirements have not been confirmed.",
    "watchouts": null,
    "verification_questions": ["What exact dimensions, mounting pattern, and model compatibility does this part support?","Is all required mounting hardware included?","Does installation require routing, drilling, soldering, or other irreversible work?","Is the item still in stock at the displayed price, and what is the complete delivered cost to the intended destination?"]
  },
  "retrieval": {
    "summary": "Duesenberg HWB1 Original Tremolo Arm – Standard is a repair, replacement, or custom-build part represented by 1 current Canadian retailer offer, starting at 32.99 CAD. Best suited to a repair or custom-build project with known dimensions and compatibility requirements. EnvoyMusic has verified the source price and availability signal, but has not independently verified every technical specification or US fulfillment detail. This is an verified retail listing reference, not inventory stocked or fulfilled by EnvoyMusic. Retailer price and availability can change; recheck the source before making a purchase decision. Skip it if the target instrument, dimensions, or installation requirements have not been confirmed.",
    "agent_summary": "The Duesenberg HWB1 Original Tremolo Arm is the short 19 cm version for Duesenberg tremolo systems, including LesTrem II. Duesenberg lists a 6 mm diameter and identifies the short version as the standard arm for most guitars.",
    "intent_terms": ["parts","repair","custom_build","upgrade","Duesenberg HWB1 Original Tremolo Arm – Standard","Tremolo Arms","verified retail listing","repair, replacement, or custom-build part","custom build"],
    "use_cases": null,
    "skill_level": "any"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"external_inventory":true,"source_availability":true,"source_price":true,"source_url":true,"structured_specs":false},
    "spec_provenance": null
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:parts","verified retail listing_reference"]
}
}