{
  "baseline": {
    "age_matched": {
      "buckets_used": 5,
      "gap": -0.19400206630287137,
      "tagged_lines_covered": 1.0,
      "tagged_rate": 0.23123360878816368,
      "untagged_rate": 0.42523567509103505
    },
    "by_age": [
      {
        "from_days": 0,
        "tagged": {
          "cap_lines": 62,
          "capped_survival_rate": 0.9078651685393258,
          "commits": 22,
          "introduced": 436,
          "largest_commit_share": 0.40825688073394495,
          "median_survival": 0.9758064516129032,
          "survival_rate": 0.9174311926605505,
          "surviving": 400
        },
        "to_days": 30,
        "untagged": {
          "cap_lines": 373,
          "capped_survival_rate": 0.6331899996601238,
          "commits": 55,
          "introduced": 6355,
          "largest_commit_share": 0.25664830841856806,
          "median_survival": 0.8333333333333334,
          "survival_rate": 0.7014948859166011,
          "surviving": 4458
        }
      },
      {
        "from_days": 30,
        "tagged": {
          "cap_lines": 157,
          "capped_survival_rate": 0.8022441761629068,
          "commits": 54,
          "introduced": 2180,
          "largest_commit_share": 0.15504587155963304,
          "median_survival": 0.9348195329087049,
          "survival_rate": 0.7545871559633027,
          "surviving": 1645
        },
        "to_days": 90,
        "untagged": {
          "cap_lines": 134,
          "capped_survival_rate": 0.7733588727334538,
          "commits": 142,
          "introduced": 5498,
          "largest_commit_share": 0.07148053837759186,
          "median_survival": 0.9411764705882353,
          "survival_rate": 0.7608221171335031,
          "surviving": 4183
        }
      },
      {
        "from_days": 90,
        "tagged": {
          "cap_lines": 84,
          "capped_survival_rate": 0.948170731707317,
          "commits": 11,
          "introduced": 328,
          "largest_commit_share": 0.25609756097560976,
          "median_survival": 1.0,
          "survival_rate": 0.948170731707317,
          "surviving": 311
        },
        "to_days": 180,
        "untagged": {
          "cap_lines": 191,
          "capped_survival_rate": 0.635534128404157,
          "commits": 575,
          "introduced": 31567,
          "largest_commit_share": 0.023125415782304305,
          "median_survival": 0.5152073732718894,
          "survival_rate": 0.6548610891120474,
          "surviving": 20672
        }
      },
      {
        "from_days": 180,
        "tagged": {
          "cap_lines": 415,
          "capped_survival_rate": 0.18914268276193205,
          "commits": 133,
          "introduced": 14118,
          "largest_commit_share": 0.27241818954526137,
          "median_survival": 0.0,
          "survival_rate": 0.131038390706899,
          "surviving": 1850
        },
        "to_days": 365,
        "untagged": {
          "cap_lines": 371,
          "capped_survival_rate": 0.4715331835845607,
          "commits": 1168,
          "introduced": 87199,
          "largest_commit_share": 0.060115368295507975,
          "median_survival": 0.3333333333333333,
          "survival_rate": 0.41875480223397055,
          "surviving": 36515
        }
      },
      {
        "from_days": 365,
        "tagged": {
          "cap_lines": 306,
          "capped_survival_rate": 0.15302216186427334,
          "commits": 64,
          "introduced": 3147,
          "largest_commit_share": 0.17063870352716873,
          "median_survival": 0.0,
          "survival_rate": 0.14839529710835717,
          "surviving": 467
        },
        "to_days": 730,
        "untagged": {
          "cap_lines": 262,
          "capped_survival_rate": 0.21313119760501914,
          "commits": 4853,
          "introduced": 453117,
          "largest_commit_share": 0.27101168130968384,
          "median_survival": 0.0,
          "survival_rate": 0.15963426664636285,
          "surviving": 72333
        }
      },
      {
        "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": null,
          "capped_survival_rate": null,
          "commits": 0,
          "introduced": 0,
          "largest_commit_share": null,
          "median_survival": null,
          "survival_rate": null,
          "surviving": 0
        }
      }
    ],
    "oldest_surviving": {
      "age_days": 716,
      "commits_before": 0,
      "date": "2024-10-31",
      "introduced_before": 0,
      "tagged_commits_before": 0,
      "tagged_introduced_before": 0
    },
    "untagged": {
      "cap_lines": 270,
      "capped_survival_rate": 0.3248934117356172,
      "commits": 6793,
      "introduced": 583736,
      "largest_commit_share": 0.21036907094988144,
      "median_survival": 0.0,
      "survival_rate": 0.23668404895363657,
      "surviving": 138161
    }
  },
  "by_agent": {
    "claude-code": {
      "cap_lines": 415,
      "capped_survival_rate": 0.23628560186509004,
      "commits": 139,
      "introduced": 14417,
      "largest_commit_share": 0.26676839841853367,
      "median_survival": 0.022503770739064857,
      "survival_rate": 0.16515225081501006,
      "surviving": 2381
    },
    "cursor": {
      "cap_lines": 235,
      "capped_survival_rate": 0.29747742819444417,
      "commits": 97,
      "introduced": 4180,
      "largest_commit_share": 0.1284688995215311,
      "median_survival": 0.0,
      "survival_rate": 0.2818181818181818,
      "surviving": 1178
    },
    "gemini": {
      "cap_lines": 4,
      "capped_survival_rate": 0.75,
      "commits": 1,
      "introduced": 4,
      "largest_commit_share": 1.0,
      "median_survival": 0.75,
      "survival_rate": 0.75,
      "surviving": 3
    },
    "github-copilot": {
      "cap_lines": 3,
      "capped_survival_rate": 0.5,
      "commits": 3,
      "introduced": 6,
      "largest_commit_share": 0.5,
      "median_survival": 0.5,
      "survival_rate": 0.5,
      "surviving": 3
    },
    "openai-codex": {
      "cap_lines": 144,
      "capped_survival_rate": 0.7770586282369721,
      "commits": 44,
      "introduced": 1602,
      "largest_commit_share": 0.20786516853932585,
      "median_survival": 0.9464137358072556,
      "survival_rate": 0.6916354556803995,
      "surviving": 1108
    }
  },
  "coverage": {
    "blame_flags": [
      "-w",
      "-M",
      "-C"
    ],
    "ignore_revs_file": false,
    "method": "v4",
    "sample_floor": 5,
    "shallow": false,
    "small_sample": false
  },
  "method": "v4",
  "probable": {
    "cap_lines": null,
    "capped_survival_rate": null,
    "commits": 0,
    "introduced": 0,
    "largest_commit_share": null,
    "median_survival": null,
    "survival_rate": null,
    "surviving": 0
  },
  "repository": {
    "head": "aa093a843da5edbf323c0b4145c9b6a0db3ecde8",
    "origin": "https://github.com/browser-use/browser-use"
  },
  "total_commits": 7077,
  "verified": {
    "cap_lines": 338,
    "capped_survival_rate": 0.30907477926907995,
    "commits": 284,
    "introduced": 20209,
    "largest_commit_share": 0.1903112474640012,
    "median_survival": 0.24772727272727274,
    "survival_rate": 0.23123360878816368,
    "surviving": 4673
  }
}
