{
  "baseline": {
    "age_matched": {
      "buckets_used": 5,
      "gap": -0.025244000130383748,
      "tagged_lines_covered": 1.0,
      "tagged_rate": 0.644700899049265,
      "untagged_rate": 0.6699448991796487
    },
    "by_age": [
      {
        "from_days": 0,
        "tagged": {
          "cap_lines": 1610,
          "capped_survival_rate": 0.7479396867805438,
          "commits": 109,
          "introduced": 59253,
          "largest_commit_share": 0.20106998801748435,
          "median_survival": 0.9301948051948052,
          "survival_rate": 0.6443555600560309,
          "surviving": 38180
        },
        "to_days": 30,
        "untagged": {
          "cap_lines": 1274,
          "capped_survival_rate": 0.8878661379658778,
          "commits": 243,
          "introduced": 64785,
          "largest_commit_share": 0.08654781199351702,
          "median_survival": 0.9297007340485601,
          "survival_rate": 0.8737516400401327,
          "surviving": 56606
        }
      },
      {
        "from_days": 30,
        "tagged": {
          "cap_lines": 1591,
          "capped_survival_rate": 0.8793434119232615,
          "commits": 187,
          "introduced": 127660,
          "largest_commit_share": 0.4298684004386652,
          "median_survival": 0.9507829977628636,
          "survival_rate": 0.5399968666771111,
          "surviving": 68936
        },
        "to_days": 90,
        "untagged": {
          "cap_lines": 993,
          "capped_survival_rate": 0.8081927504336072,
          "commits": 470,
          "introduced": 119849,
          "largest_commit_share": 0.10529916811988418,
          "median_survival": 0.9067668086950242,
          "survival_rate": 0.8110121903395106,
          "surviving": 97199
        }
      },
      {
        "from_days": 90,
        "tagged": {
          "cap_lines": 1083,
          "capped_survival_rate": 0.7552801739338553,
          "commits": 269,
          "introduced": 257021,
          "largest_commit_share": 0.5551297364806766,
          "median_survival": 0.9,
          "survival_rate": 0.6814151372845021,
          "surviving": 175138
        },
        "to_days": 180,
        "untagged": {
          "cap_lines": 795,
          "capped_survival_rate": 0.7633804943143917,
          "commits": 825,
          "introduced": 391941,
          "largest_commit_share": 0.12074266279873756,
          "median_survival": 0.8609453958450308,
          "survival_rate": 0.5892596079511967,
          "surviving": 230955
        }
      },
      {
        "from_days": 180,
        "tagged": {
          "cap_lines": 768,
          "capped_survival_rate": 0.8148919739535927,
          "commits": 172,
          "introduced": 35070,
          "largest_commit_share": 0.10416310236669518,
          "median_survival": 0.8493909191583611,
          "survival_rate": 0.7891930424864556,
          "surviving": 27677
        },
        "to_days": 365,
        "untagged": {
          "cap_lines": 1077,
          "capped_survival_rate": 0.6456868151635308,
          "commits": 2356,
          "introduced": 765019,
          "largest_commit_share": 0.07062831119227105,
          "median_survival": 0.8,
          "survival_rate": 0.4931119357819871,
          "surviving": 377240
        }
      },
      {
        "from_days": 365,
        "tagged": {
          "cap_lines": 952,
          "capped_survival_rate": 0.6053956837643304,
          "commits": 77,
          "introduced": 16297,
          "largest_commit_share": 0.21249309688899798,
          "median_survival": 0.7384453781512605,
          "survival_rate": 0.5761796649690127,
          "surviving": 9390
        },
        "to_days": 730,
        "untagged": {
          "cap_lines": 581,
          "capped_survival_rate": 0.5666517222307002,
          "commits": 4446,
          "introduced": 672717,
          "largest_commit_share": 0.04563583200662388,
          "median_survival": 0.6566964285714285,
          "survival_rate": 0.47693606672642436,
          "surviving": 320843
        }
      },
      {
        "from_days": 730,
        "tagged": {
          "cap_lines": null,
          "capped_survival_rate": null,
          "commits": 0,
          "introduced": 0,
          "largest_commit_share": null,
          "median_survival": null,
          "survival_rate": null,
          "surviving": 0
        },
        "to_days": null,
        "untagged": {
          "cap_lines": 658,
          "capped_survival_rate": 0.33277597617231885,
          "commits": 22602,
          "introduced": 3493701,
          "largest_commit_share": 0.021598299339296637,
          "median_survival": 0.16666666666666666,
          "survival_rate": 0.3105219937252787,
          "surviving": 1084871
        }
      }
    ],
    "oldest_surviving": {
      "age_days": 3885,
      "commits_before": 0,
      "date": "2016-02-07",
      "introduced_before": 0,
      "tagged_commits_before": 0,
      "tagged_introduced_before": 0
    },
    "untagged": {
      "cap_lines": 681,
      "capped_survival_rate": 0.4206848906871102,
      "commits": 30942,
      "introduced": 5508012,
      "largest_commit_share": 0.013699679666638345,
      "median_survival": 0.3333333333333333,
      "survival_rate": 0.39355651367498834,
      "surviving": 2167714
    }
  },
  "by_agent": {
    "claude-code": {
      "cap_lines": 1395,
      "capped_survival_rate": 0.8011157277590931,
      "commits": 521,
      "introduced": 436363,
      "largest_commit_share": 0.32697547683923706,
      "median_survival": 0.9275196300853283,
      "survival_rate": 0.632351963846614,
      "surviving": 275935
    },
    "cursor": {
      "cap_lines": 1610,
      "capped_survival_rate": 0.818543190471698,
      "commits": 24,
      "introduced": 8145,
      "largest_commit_share": 0.20466543891958255,
      "median_survival": 0.8666666666666667,
      "survival_rate": 0.8187845303867404,
      "surviving": 6669
    },
    "gemini": {
      "cap_lines": 848,
      "capped_survival_rate": 0.7509090665124692,
      "commits": 236,
      "introduced": 48622,
      "largest_commit_share": 0.07122290321253753,
      "median_survival": 0.8448275862068966,
      "survival_rate": 0.7303484019579615,
      "surviving": 35511
    },
    "github-copilot": {
      "cap_lines": 303,
      "capped_survival_rate": 0.6180412623738116,
      "commits": 33,
      "introduced": 2171,
      "largest_commit_share": 0.3150621833256564,
      "median_survival": 0.6923076923076923,
      "survival_rate": 0.5555043758636573,
      "surviving": 1206
    }
  },
  "coverage": {
    "blame_flags": [
      "-w",
      "-M",
      "-C"
    ],
    "ignore_revs_file": true,
    "method": "v3",
    "sample_floor": 5,
    "shallow": false,
    "small_sample": false
  },
  "method": "v3",
  "probable": {
    "cap_lines": 513,
    "capped_survival_rate": 0.6286043829296425,
    "commits": 19,
    "introduced": 1734,
    "largest_commit_share": 0.2958477508650519,
    "median_survival": 0.9193548387096774,
    "survival_rate": 0.6286043829296425,
    "surviving": 1090
  },
  "repository": {
    "head": "8e959a4192019d9c1620571901307588d88925f1",
    "origin": "https://github.com/ray-project/ray"
  },
  "total_commits": 31775,
  "verified": {
    "cap_lines": 1161,
    "capped_survival_rate": 0.7857673590615113,
    "commits": 814,
    "introduced": 495301,
    "largest_commit_share": 0.28806725607257,
    "median_survival": 0.9045287637698899,
    "survival_rate": 0.644700899049265,
    "surviving": 319321
  }
}
