{
  "articles": [
    {
      "id": 101,
      "quality": 8.5,
      "fit": 7.0,
      "category": "Tech & Engineering",
      "rationale": "First-hand 40TB Postgres migration with failure timeline, numbers and a rollback plan",
      "paywalled_guess": false,
      "facets": {
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        "depth": "deep",
        "evidence": "first_hand",
        "commerciality": "none",
        "topic_group": "software_engineering",
        "technicality": "advanced",
        "locality": "not_applicable",
        "specific_topics": ["Postgres migration", "storage failover", "rollback planning"]
      }
    },
    {
      "id": 102,
      "quality": 3.0,
      "fit": 2.5,
      "category": "AI & Machine Learning",
      "rationale": "Model release announcement, benchmark table from the vendor, no independent evaluation",
      "paywalled_guess": false,
      "facets": {
        "format": "announcement_roundup",
        "depth": "brief",
        "evidence": "speculative",
        "commerciality": "promotional",
        "topic_group": "ai_ml",
        "technicality": "light",
        "locality": "international",
        "specific_topics": ["model launch"]
      }
    },
    {
      "id": 103,
      "quality": 6.5,
      "fit": 8.0,
      "category": "Boston & Local",
      "rationale": "MBTA slow-zone data pulled from the tracker and charted by line with original analysis",
      "paywalled_guess": false,
      "facets": {
        "format": "analysis_essay",
        "depth": "standard",
        "evidence": "data_or_experiment",
        "commerciality": "none",
        "topic_group": "boston_new_england",
        "technicality": "intermediate",
        "locality": "boston_new_england",
        "specific_topics": ["MBTA slow zones", "transit data"]
      }
    },
    {
      "id": 104,
      "quality": 5.0,
      "fit": 6.0,
      "category": "Culture & Essays",
      "rationale": "Promising essay on typesetting history; the body reads cut off after the second section",
      "paywalled_guess": true,
      "facets": {
        "format": "analysis_essay",
        "depth": "standard",
        "evidence": "synthesis",
        "commerciality": "none",
        "topic_group": "books_writing",
        "technicality": "nontechnical",
        "locality": "not_applicable",
        "specific_topics": ["typesetting", "print history"]
      }
    }
  ]
}