{
  "schemaVersion": "1.1",
  "executedAt": "2026-09-22T01:56:45.838Z",
  "fixtureSha256": "6649e4c9eafc75b966b7705c5b6f75d926be145e0d5b3acc53a39793455e70be",
  "runnerSha256": "225ce89da3e74d22c06e7f32d0084d6dc5082aeae4c0ef7b479d9087e5280e97",
  "coreSha256": "cd8949ba878885996a18cedc2809d20fab3551fa1aee8a08af58ba5f35491210",
  "experimentId": "feed-portability-2026-09-13",
  "ruleVersion": "1.1.0",
  "scope": "Controlled local portability demonstration. Twelve deliberately authored synthetic records: two controls and ten edge cases. No merchant feed, vendor upload, live page request, or model inference.",
  "target": "An editorial review subset inspired by OpenAI Stable native discovery, with additional identity and evidence checks. Not a complete provider validator.",
  "oracle": "Expected mapped decisions were recorded in this fixture file before the experiment was executed. The same author designed the fixtures and checks; this is not an independent or blind evaluation.",
  "notTested": [
    "Provider admission or upload acceptance",
    "Live URLs, images, checkout, or stock",
    "GTIN assignment",
    "Whole-feed uniqueness and cross-row option consistency",
    "Country/category-specific requirements outside this subset",
    "Model performance",
    "Traffic or customer outcomes"
  ],
  "summary": [
    {
      "method": "copy",
      "records": 12,
      "clear": 2,
      "hold": 10
    },
    {
      "method": "mapped",
      "records": 12,
      "clear": 6,
      "hold": 6
    }
  ],
  "cases": [
    {
      "id": "C01",
      "label": "Native nonvariant control",
      "control": true,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD"
      },
      "evidence": {},
      "expectedAfterMapping": "clear",
      "reason": "The selected local checks find no issue.",
      "observations": [
        {
          "method": "copy",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [],
          "issues": [],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [],
          "issues": [],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        }
      ]
    },
    {
      "id": "C02",
      "label": "Native variant control",
      "control": true,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD",
        "group_id": "DEMO-MUG",
        "listing_has_variations": true,
        "variant_dict": {
          "color": "Blue"
        },
        "color": "Blue"
      },
      "evidence": {},
      "expectedAfterMapping": "clear",
      "reason": "The selected local checks find no issue in the declared variant.",
      "observations": [
        {
          "method": "copy",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [],
          "issues": [],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "Blue"
            },
            "color": "Blue"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [],
          "issues": [],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "Blue"
            },
            "color": "Blue"
          }
        }
      ]
    },
    {
      "id": "F01",
      "label": "Destination field names",
      "control": false,
      "exampleOnly": true,
      "input": {
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "availability": "in_stock",
        "price": "18.00 USD",
        "id": "DEMO-MUG-BLUE",
        "link": "https://example.com/mug?color=blue",
        "image_link": "https://example.com/images/mug-blue.jpg"
      },
      "evidence": {},
      "expectedAfterMapping": "clear",
      "reason": "Map source keys to the selected native representation.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "item_id",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "image_url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            }
          ],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "in_stock",
            "price": "18.00 USD",
            "id": "DEMO-MUG-BLUE",
            "link": "https://example.com/mug?color=blue",
            "image_link": "https://example.com/images/mug-blue.jpg"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [
            "id → item_id",
            "link → url",
            "image_link → image_url"
          ],
          "issues": [],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "in_stock",
            "price": "18.00 USD",
            "item_id": "DEMO-MUG-BLUE",
            "url": "https://example.com/mug?color=blue",
            "image_url": "https://example.com/images/mug-blue.jpg"
          }
        }
      ]
    },
    {
      "id": "F02",
      "label": "Preorder spelling",
      "control": false,
      "exampleOnly": true,
      "input": {
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "availability": "preorder",
        "price": "18.00 USD",
        "id": "DEMO-MUG-BLUE",
        "link": "https://example.com/mug?color=blue",
        "image_link": "https://example.com/images/mug-blue.jpg"
      },
      "evidence": {},
      "expectedAfterMapping": "clear",
      "reason": "Translate the explicit Google stock value to native pre_order.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "item_id",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "image_url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "stock_vocabulary",
              "path": "availability",
              "message": "Value is outside the selected native vocabulary."
            }
          ],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "preorder",
            "price": "18.00 USD",
            "id": "DEMO-MUG-BLUE",
            "link": "https://example.com/mug?color=blue",
            "image_link": "https://example.com/images/mug-blue.jpg"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [
            "id → item_id",
            "link → url",
            "image_link → image_url",
            "preorder → pre_order"
          ],
          "issues": [],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "pre_order",
            "price": "18.00 USD",
            "item_id": "DEMO-MUG-BLUE",
            "url": "https://example.com/mug?color=blue",
            "image_url": "https://example.com/images/mug-blue.jpg"
          }
        }
      ]
    },
    {
      "id": "F03",
      "label": "Variant representation",
      "control": false,
      "exampleOnly": true,
      "input": {
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "availability": "in_stock",
        "price": "18.00 USD",
        "id": "DEMO-MUG-BLUE",
        "link": "https://example.com/mug?color=blue",
        "image_link": "https://example.com/images/mug-blue.jpg",
        "item_group_id": "DEMO-MUG",
        "variant_option": "color:Blue",
        "color": "Blue"
      },
      "evidence": {},
      "expectedAfterMapping": "clear",
      "reason": "Preserve the parent and selected options while constructing native grouping fields.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "item_id",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "required_string",
              "path": "image_url",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            },
            {
              "code": "source_variant_fields",
              "path": "variant_option",
              "message": "Source-style variant fields still need an explicit mapping."
            }
          ],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "in_stock",
            "price": "18.00 USD",
            "id": "DEMO-MUG-BLUE",
            "link": "https://example.com/mug?color=blue",
            "image_link": "https://example.com/images/mug-blue.jpg",
            "item_group_id": "DEMO-MUG",
            "variant_option": "color:Blue",
            "color": "Blue"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [
            "id → item_id",
            "link → url",
            "image_link → image_url",
            "item_group_id → group_id",
            "Constructed explicit native variant fields"
          ],
          "issues": [],
          "output": {
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "availability": "in_stock",
            "price": "18.00 USD",
            "color": "Blue",
            "item_id": "DEMO-MUG-BLUE",
            "url": "https://example.com/mug?color=blue",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "group_id": "DEMO-MUG",
            "variant_dict": {
              "color": "Blue"
            },
            "listing_has_variations": true
          }
        }
      ]
    },
    {
      "id": "F04",
      "label": "Mixed explicit product units",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD",
        "product_length": "30 in",
        "product_width": "50.8 cm"
      },
      "evidence": {
        "dimensionBasis": "product"
      },
      "expectedAfterMapping": "clear",
      "reason": "Convert two evidenced product axes to one unit.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "source_dimensions",
              "path": "product_dimensions",
              "message": "Explicit source measurements have not been normalized."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "product_length": "30 in",
            "product_width": "50.8 cm"
          }
        },
        {
          "method": "mapped",
          "status": "clear",
          "label": "No issue in these checks",
          "changes": [
            "Converted explicit product axes to centimeters"
          ],
          "issues": [],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "dimensions": {
              "length": "76.2",
              "width": "50.8",
              "unit": "cm"
            }
          }
        }
      ]
    },
    {
      "id": "F05",
      "label": "Missing seller identity",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD"
      },
      "evidence": {},
      "expectedAfterMapping": "hold",
      "reason": "A required seller identity cannot be derived from the product brand.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "seller_name",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "seller_name",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        }
      ]
    },
    {
      "id": "F06",
      "label": "Numeric item identifier",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": 12345,
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD"
      },
      "evidence": {},
      "expectedAfterMapping": "hold",
      "reason": "The local profile refuses numeric IDs because prior string information may be lost.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "item_id",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            }
          ],
          "output": {
            "item_id": 12345,
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "required_string",
              "path": "item_id",
              "message": "Supply a nonempty string from a trusted source. Numeric identifiers are not repaired."
            }
          ],
          "output": {
            "item_id": 12345,
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        }
      ]
    },
    {
      "id": "F07",
      "label": "Parent reused as item ID",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD",
        "group_id": "DEMO-MUG-BLUE",
        "listing_has_variations": true,
        "variant_dict": {
          "color": "Blue"
        },
        "color": "Blue"
      },
      "evidence": {},
      "expectedAfterMapping": "hold",
      "reason": "The parent and selected item must remain distinct.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "parent_identity",
              "path": "group_id",
              "message": "Keep the parent distinct from its child item."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG-BLUE",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "Blue"
            },
            "color": "Blue"
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "parent_identity",
              "path": "group_id",
              "message": "Keep the parent distinct from its child item."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG-BLUE",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "Blue"
            },
            "color": "Blue"
          }
        }
      ]
    },
    {
      "id": "F08",
      "label": "Conflicting selected color",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD",
        "group_id": "DEMO-MUG",
        "listing_has_variations": true,
        "variant_dict": {
          "color": "White"
        },
        "color": "Blue"
      },
      "evidence": {},
      "expectedAfterMapping": "hold",
      "reason": "A mapping must not silently choose between contradictory selected colors.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "option_conflict",
              "path": "color",
              "message": "Selected option disagrees with the top-level value."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "White"
            },
            "color": "Blue"
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "option_conflict",
              "path": "color",
              "message": "Selected option disagrees with the top-level value."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "group_id": "DEMO-MUG",
            "listing_has_variations": true,
            "variant_dict": {
              "color": "White"
            },
            "color": "Blue"
          }
        }
      ]
    },
    {
      "id": "F09",
      "label": "Price disagrees with page",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD"
      },
      "evidence": {
        "pagePrice": "19.00 USD"
      },
      "expectedAfterMapping": "hold",
      "reason": "The supplied fictional page evidence disagrees with the offer price.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "page_price_conflict",
              "path": "evidence.pagePrice",
              "message": "Supplied page-price evidence disagrees with the current offer. No live page was fetched."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "page_price_conflict",
              "path": "evidence.pagePrice",
              "message": "Supplied page-price evidence disagrees with the current offer. No live page was fetched."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD"
          }
        }
      ]
    },
    {
      "id": "F10",
      "label": "Package dimensions relabeled",
      "control": false,
      "exampleOnly": true,
      "input": {
        "item_id": "DEMO-MUG-BLUE",
        "title": "Demo ceramic mug — blue",
        "description": "Synthetic blue ceramic mug for a local feed experiment.",
        "url": "https://example.com/mug?color=blue",
        "brand": "Example Workshop",
        "seller_name": "Example Retailer",
        "image_url": "https://example.com/images/mug-blue.jpg",
        "availability": "in_stock",
        "price": "18.00 USD",
        "dimensions": {
          "length": "12",
          "width": "10",
          "unit": "cm"
        }
      },
      "evidence": {
        "dimensionBasis": "shipping_package"
      },
      "expectedAfterMapping": "hold",
      "reason": "Package measurements do not establish the item dimensions.",
      "observations": [
        {
          "method": "copy",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "dimension_basis",
              "path": "evidence.dimensionBasis",
              "message": "Product measurement basis is missing or describes packaging."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "dimensions": {
              "length": "12",
              "width": "10",
              "unit": "cm"
            }
          }
        },
        {
          "method": "mapped",
          "status": "hold",
          "label": "Needs review",
          "changes": [],
          "issues": [
            {
              "code": "dimension_basis",
              "path": "evidence.dimensionBasis",
              "message": "Product measurement basis is missing or describes packaging."
            }
          ],
          "output": {
            "item_id": "DEMO-MUG-BLUE",
            "title": "Demo ceramic mug — blue",
            "description": "Synthetic blue ceramic mug for a local feed experiment.",
            "url": "https://example.com/mug?color=blue",
            "brand": "Example Workshop",
            "seller_name": "Example Retailer",
            "image_url": "https://example.com/images/mug-blue.jpg",
            "availability": "in_stock",
            "price": "18.00 USD",
            "dimensions": {
              "length": "12",
              "width": "10",
              "unit": "cm"
            }
          }
        }
      ]
    }
  ]
}