{
  "baseline": {
    "age_matched": {
      "buckets_used": 5,
      "gap": 0.15078493235564283,
      "tagged_lines_covered": 1.0,
      "tagged_rate": 0.7677930693542986,
      "untagged_rate": 0.6170081369986558
    },
    "by_age": [
      {
        "from_days": 0,
        "tagged": {
          "cap_lines": 1472,
          "capped_survival_rate": 0.8864990750218331,
          "commits": 31,
          "introduced": 6603,
          "largest_commit_share": 0.25140087838861125,
          "median_survival": 0.9487179487179487,
          "survival_rate": 0.887929728911101,
          "surviving": 5863
        },
        "to_days": 30,
        "untagged": {
          "cap_lines": 1181,
          "capped_survival_rate": 0.8011111182945159,
          "commits": 495,
          "introduced": 163294,
          "largest_commit_share": 0.1287922397638615,
          "median_survival": 0.8866773675762439,
          "survival_rate": 0.8266868347887859,
          "surviving": 134993
        }
      },
      {
        "from_days": 30,
        "tagged": {
          "cap_lines": 3839,
          "capped_survival_rate": 0.8744318827114077,
          "commits": 44,
          "introduced": 20072,
          "largest_commit_share": 0.2322638501394978,
          "median_survival": 0.9258241758241759,
          "survival_rate": 0.8796333200478278,
          "surviving": 17656
        },
        "to_days": 90,
        "untagged": {
          "cap_lines": 1342,
          "capped_survival_rate": 0.7210013487892212,
          "commits": 851,
          "introduced": 241614,
          "largest_commit_share": 0.03412467820573311,
          "median_survival": 0.8372487189594009,
          "survival_rate": 0.6821417633084176,
          "surviving": 164815
        }
      },
      {
        "from_days": 90,
        "tagged": {
          "cap_lines": 1724,
          "capped_survival_rate": 0.7080127327752223,
          "commits": 64,
          "introduced": 23081,
          "largest_commit_share": 0.14119838828473635,
          "median_survival": 0.7646153846153847,
          "survival_rate": 0.6971101772020276,
          "surviving": 16090
        },
        "to_days": 180,
        "untagged": {
          "cap_lines": 894,
          "capped_survival_rate": 0.626361807114189,
          "commits": 1029,
          "introduced": 273593,
          "largest_commit_share": 0.14587727025179736,
          "median_survival": 0.7165178571428572,
          "survival_rate": 0.5455293081328835,
          "surviving": 149253
        }
      },
      {
        "from_days": 180,
        "tagged": {
          "cap_lines": 613,
          "capped_survival_rate": 0.6643090840846865,
          "commits": 103,
          "introduced": 12465,
          "largest_commit_share": 0.07501002807862013,
          "median_survival": 0.7787610619469026,
          "survival_rate": 0.6559165663858805,
          "surviving": 8176
        },
        "to_days": 365,
        "untagged": {
          "cap_lines": 927,
          "capped_survival_rate": 0.5853470324643533,
          "commits": 2376,
          "introduced": 569769,
          "largest_commit_share": 0.03287999171594102,
          "median_survival": 0.6015037593984962,
          "survival_rate": 0.5414580294821234,
          "surviving": 308506
        }
      },
      {
        "from_days": 365,
        "tagged": {
          "cap_lines": 428,
          "capped_survival_rate": 0.742798353909465,
          "commits": 5,
          "introduced": 486,
          "largest_commit_share": 0.8806584362139918,
          "median_survival": 0.75,
          "survival_rate": 0.742798353909465,
          "surviving": 361
        },
        "to_days": 730,
        "untagged": {
          "cap_lines": 690,
          "capped_survival_rate": 0.44968831563903544,
          "commits": 6074,
          "introduced": 1721645,
          "largest_commit_share": 0.05949310107484412,
          "median_survival": 0.38461538461538464,
          "survival_rate": 0.4105561831852676,
          "surviving": 706832
        }
      },
      {
        "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": 440,
          "capped_survival_rate": 0.2975977929130832,
          "commits": 24759,
          "introduced": 10000979,
          "largest_commit_share": 0.04986291842028665,
          "median_survival": 0.0,
          "survival_rate": 0.1353576484862132,
          "surviving": 1353709
        }
      }
    ],
    "oldest_surviving": {
      "age_days": 3651,
      "commits_before": 0,
      "date": "2016-10-05",
      "introduced_before": 0,
      "tagged_commits_before": 0,
      "tagged_introduced_before": 0
    },
    "untagged": {
      "cap_lines": 578,
      "capped_survival_rate": 0.40748334355004223,
      "commits": 35584,
      "introduced": 12970894,
      "largest_commit_share": 0.038445923619451365,
      "median_survival": 0.12903225806451613,
      "survival_rate": 0.21726397579072035,
      "surviving": 2818108
    }
  },
  "by_agent": {
    "claude-code": {
      "cap_lines": 1345,
      "capped_survival_rate": 0.7637728486634664,
      "commits": 185,
      "introduced": 52151,
      "largest_commit_share": 0.08939425897873483,
      "median_survival": 0.8448753462603878,
      "survival_rate": 0.7992560065962302,
      "surviving": 41682
    },
    "cursor": {
      "cap_lines": 703,
      "capped_survival_rate": 0.6872697972854724,
      "commits": 53,
      "introduced": 10008,
      "largest_commit_share": 0.23321342925659472,
      "median_survival": 0.7819905213270142,
      "survival_rate": 0.6076139088729017,
      "surviving": 6081
    },
    "devin": {
      "cap_lines": 428,
      "capped_survival_rate": 0.7435897435897436,
      "commits": 3,
      "introduced": 468,
      "largest_commit_share": 0.9145299145299145,
      "median_survival": 0.75,
      "survival_rate": 0.7435897435897436,
      "surviving": 348
    },
    "github-copilot": {
      "cap_lines": 53,
      "capped_survival_rate": 0.4375,
      "commits": 6,
      "introduced": 80,
      "largest_commit_share": 0.6625,
      "median_survival": 0.1792452830188679,
      "survival_rate": 0.4375,
      "surviving": 35
    }
  },
  "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": 8,
    "capped_survival_rate": 1.0,
    "commits": 3,
    "introduced": 13,
    "largest_commit_share": 0.6153846153846154,
    "median_survival": 1.0,
    "survival_rate": 1.0,
    "surviving": 13
  },
  "repository": {
    "head": "1fffea65b678744091a6dc13996339dcf8dcfe4e",
    "origin": "https://github.com/vercel/next.js"
  },
  "total_commits": 35834,
  "verified": {
    "cap_lines": 1095,
    "capped_survival_rate": 0.7400271537551669,
    "commits": 247,
    "introduced": 62707,
    "largest_commit_share": 0.07434576682029119,
    "median_survival": 0.8247422680412371,
    "survival_rate": 0.7677930693542986,
    "surviving": 48146
  }
}
