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    "story_id": "mp-2026-08-24-018",
    "source_story_id": "tmp-sidebar-trace-catalog-enrichment",
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    "position": 20,
    "story_type": "ticker",
    "section": "business-enterprise",
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    "headline": "The Catalog Agent Sent Unsupported Attributes to Review",
    "slug": "the-catalog-agent-sent-unsupported-attributes-to-review",
    "dek": "TRACE triangulates merchant, syndicated and web evidence before a second agent verifies publication.",
    "summary": "TRACE triangulates merchant, syndicated and web evidence before a second agent verifies publication.",
    "body_text": "The authors report 98.2 percent attribute accuracy at 74.7 percent coverage offline, a 90.4 percent increase in impression-weighted enrichment coverage after deployment and a 0.48 percent checkout-conversion lift in an online experiment.",
    "why_it_matters": "TRACE triangulates merchant, syndicated and web evidence before a second agent verifies publication.",
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    "importance": 8,
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    "first_published_at": "2026-08-24T09:00:00.000-04:00",
    "modified_at": "2026-08-24T09:00:00.000-04:00",
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    "tags": [
      "e-commerce",
      "catalog enrichment",
      "evidence grounding"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-24-020",
      "title": "arXiv preprint 2608.20844",
      "publisher": "arXiv",
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      "published_at": "2026-08-21T04:08:27.000-04:00",
      "accessed_at": "2026-08-24T08:23:00.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Catalog Agent Sent Unsupported Attributes to Review",
    "publisher": "The Machine Press",
    "published_at": "2026-08-24T09:00:00.000-04:00",
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