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      "degradation_reason": "December used a single provider representative while March and April weekly runs use multiple provider aliases. Values are family-level averages for the weekly runs and must not be interpreted as exact model-to-model continuity.",
      "source_file_paths": [
        "docs/reports/2025-12-22/fri_visualization_data.md",
        "fri_agent/logs/weekly_ops/fri_weekly_20260319T171117Z_3d14c6ba_2e0bc131/stage_artifacts/core_weekly/fri_n2000_20260319_171636_public.json",
        "fri_agent/logs/weekly_ops/official-weekly-stage-independent-57-20260414T183732Z-f08dccf/stage_artifacts/core_weekly/fri_n2000_20260414_184600_public.json"
      ],
      "metrics": {
        "faith_response_index_directional_family_average": {
          "2025-12-22": 77.3,
          "2026-03-19": 70.0,
          "2026-04-14": 67.5,
          "delta_december_to_april": -9.8
        }
      }
    },
    {
      "provider": "xAI",
      "comparability_status": "family_level_only",
      "degradation_reason": "December used a single provider representative while March and April weekly runs use multiple provider aliases. Values are family-level averages for the weekly runs and must not be interpreted as exact model-to-model continuity.",
      "source_file_paths": [
        "docs/reports/2025-12-22/fri_visualization_data.md",
        "fri_agent/logs/weekly_ops/fri_weekly_20260319T171117Z_3d14c6ba_2e0bc131/stage_artifacts/core_weekly/fri_n2000_20260319_171636_public.json",
        "fri_agent/logs/weekly_ops/official-weekly-stage-independent-57-20260414T183732Z-f08dccf/stage_artifacts/core_weekly/fri_n2000_20260414_184600_public.json"
      ],
      "metrics": {
        "faith_response_index_directional_family_average": {
          "2025-12-22": 67.2,
          "2026-03-19": 58.7,
          "2026-04-14": 56.0,
          "delta_december_to_april": -11.2
        }
      }
    }
  ],
  "unavailable_metrics": [
    {
      "metric_name": "inaugural_meaning_utility_score",
      "comparability_status": "unavailable",
      "reason": "December publishes hand-curated meaning utility scores, but the current public weekly artifacts do not expose a directly comparable aggregate meaning utility score in the same public contract.",
      "source_file_paths": [
        "docs/reports/2025-12-22/fri_visualization_data.md",
        "fri_agent/logs/weekly_ops/official-weekly-stage-independent-57-20260414T183732Z-f08dccf/stage_artifacts/core_weekly/fri_n2000_20260414_184600_public.json"
      ]
    },
    {
      "metric_name": "inaugural_corrigibility_heatmap",
      "comparability_status": "unavailable",
      "reason": "December publishes persona-level adaptation distances in a hand-authored table; later public weekly artifacts do not expose a directly comparable provider-family aggregate for public trend claims.",
      "source_file_paths": [
        "docs/reports/2025-12-22/fri_visualization_data.md",
        "fri_agent/logs/weekly_ops/official-weekly-stage-independent-57-20260414T183732Z-f08dccf/stage_artifacts/core_weekly/fri_n2000_20260414_184600_public.json"
      ]
    }
  ]
}