{
  "brief": "examples/heat-pump-brief.md",
  "today": "2026-11-09",
  "verdict": "ready",
  "counts": {
    "claims": 5,
    "cited_claims": 5,
    "uncited_claims": 0,
    "sources": 4,
    "distinct_sites": 4
  },
  "uncited_claims": [],
  "broken_citations": [],
  "unused_sources": [],
  "sources_without_link": [],
  "sources_without_date": [],
  "stale_sources": [
    {
      "id": 4,
      "date": "2023-06-01"
    }
  ],
  "leans_on_one_source": [],
  "sources": [
    {
      "id": 1,
      "line": 21,
      "text": "Cold-climate heat pump guide, a national energy efficiency agency, 2025-03-14. https://energy.example.gov/heat-pumps/cold-climate",
      "url": "https://energy.example.gov/heat-pumps/cold-climate",
      "date": "2025-03-14"
    },
    {
      "id": 2,
      "line": 22,
      "text": "Field study of air-source heat pumps in cold regions, a university building science lab, 2024-09. https://buildings.example.edu/reports/ashp-field-study",
      "url": "https://buildings.example.edu/reports/ashp-field-study",
      "date": "2024-09"
    },
    {
      "id": 3,
      "line": 23,
      "text": "Heating cost comparison calculator notes, a state energy office, 2025. https://stateenergy.example.gov/heating-costs",
      "url": "https://stateenergy.example.gov/heating-costs",
      "date": "2025"
    },
    {
      "id": 4,
      "line": 24,
      "text": "Sizing a heat pump: a homeowner's guide, a contractors' trade association, 2023-06-01. https://contractors.example.org/sizing-guide",
      "url": "https://contractors.example.org/sizing-guide",
      "date": "2023-06-01"
    }
  ]
}