{
  "baseline": {
    "age_matched": {
      "buckets_used": 5,
      "gap": 0.10821504040916263,
      "tagged_lines_covered": 1.0,
      "tagged_rate": 0.793632024300282,
      "untagged_rate": 0.6854169838911194
    },
    "by_age": [
      {
        "from_days": 0,
        "tagged": {
          "cap_lines": 2699,
          "capped_survival_rate": 0.8859756097560976,
          "commits": 19,
          "introduced": 6560,
          "largest_commit_share": 0.4114329268292683,
          "median_survival": 0.7947643979057591,
          "survival_rate": 0.8859756097560976,
          "surviving": 5812
        },
        "to_days": 30,
        "untagged": {
          "cap_lines": 1046,
          "capped_survival_rate": 0.7956817074925298,
          "commits": 284,
          "introduced": 81641,
          "largest_commit_share": 0.09143690057691602,
          "median_survival": 0.751412429378531,
          "survival_rate": 0.8278193554709031,
          "surviving": 67584
        }
      },
      {
        "from_days": 30,
        "tagged": {
          "cap_lines": 5353,
          "capped_survival_rate": 0.8687182652629236,
          "commits": 23,
          "introduced": 20529,
          "largest_commit_share": 0.3393248575186322,
          "median_survival": 0.7833333333333333,
          "survival_rate": 0.874859954211116,
          "surviving": 17960
        },
        "to_days": 90,
        "untagged": {
          "cap_lines": 1613,
          "capped_survival_rate": 0.7380075614514663,
          "commits": 430,
          "introduced": 149528,
          "largest_commit_share": 0.09567438874324541,
          "median_survival": 0.6564102564102564,
          "survival_rate": 0.7499799368680113,
          "surviving": 112143
        }
      },
      {
        "from_days": 90,
        "tagged": {
          "cap_lines": 1242,
          "capped_survival_rate": 0.819539121366843,
          "commits": 44,
          "introduced": 18173,
          "largest_commit_share": 0.3088097727397788,
          "median_survival": 0.7392075694855116,
          "survival_rate": 0.8452649535024487,
          "surviving": 15361
        },
        "to_days": 180,
        "untagged": {
          "cap_lines": 999,
          "capped_survival_rate": 0.6792582116731636,
          "commits": 605,
          "introduced": 148014,
          "largest_commit_share": 0.05460294296485468,
          "median_survival": 0.622356495468278,
          "survival_rate": 0.67612523139703,
          "surviving": 100076
        }
      },
      {
        "from_days": 180,
        "tagged": {
          "cap_lines": 2861,
          "capped_survival_rate": 0.73856336328322,
          "commits": 94,
          "introduced": 43294,
          "largest_commit_share": 0.13734004711969325,
          "median_survival": 0.7064554434069197,
          "survival_rate": 0.7417194068462143,
          "surviving": 32112
        },
        "to_days": 365,
        "untagged": {
          "cap_lines": 864,
          "capped_survival_rate": 0.6347434715010478,
          "commits": 1177,
          "introduced": 248398,
          "largest_commit_share": 0.07675585149638886,
          "median_survival": 0.5,
          "survival_rate": 0.6511163535938292,
          "surviving": 161736
        }
      },
      {
        "from_days": 365,
        "tagged": {
          "cap_lines": 380,
          "capped_survival_rate": 0.5274901942489674,
          "commits": 28,
          "introduced": 3624,
          "largest_commit_share": 0.10623620309050773,
          "median_survival": 0.5071393072864898,
          "survival_rate": 0.5275938189845475,
          "surviving": 1912
        },
        "to_days": 730,
        "untagged": {
          "cap_lines": 582,
          "capped_survival_rate": 0.48332424930871065,
          "commits": 1966,
          "introduced": 286860,
          "largest_commit_share": 0.026075437495642475,
          "median_survival": 0.3105122196183462,
          "survival_rate": 0.5182806944153943,
          "surviving": 148674
        }
      },
      {
        "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": 580,
          "capped_survival_rate": 0.38205510542285726,
          "commits": 4019,
          "introduced": 1033300,
          "largest_commit_share": 0.39860156779250944,
          "median_survival": 0.17647058823529413,
          "survival_rate": 0.21601180683247848,
          "surviving": 223205
        }
      }
    ],
    "oldest_surviving": {
      "age_days": 1888,
      "commits_before": 0,
      "date": "2021-08-17",
      "introduced_before": 0,
      "tagged_commits_before": 0,
      "tagged_introduced_before": 0
    },
    "untagged": {
      "cap_lines": 715,
      "capped_survival_rate": 0.5226177491781517,
      "commits": 8481,
      "introduced": 1947741,
      "largest_commit_share": 0.2114629203780174,
      "median_survival": 0.3140495867768595,
      "survival_rate": 0.41762123403470996,
      "surviving": 813418
    }
  },
  "by_agent": {
    "claude-code": {
      "cap_lines": 1199,
      "capped_survival_rate": 0.8228275605910952,
      "commits": 43,
      "introduced": 17067,
      "largest_commit_share": 0.3136462178473077,
      "median_survival": 0.7415730337078652,
      "survival_rate": 0.868576785609656,
      "surviving": 14824
    },
    "cursor": {
      "cap_lines": 225,
      "capped_survival_rate": 0.8183716075156576,
      "commits": 4,
      "introduced": 479,
      "largest_commit_share": 0.4697286012526096,
      "median_survival": 0.8279824561403509,
      "survival_rate": 0.8183716075156576,
      "surviving": 392
    },
    "devin": {
      "cap_lines": 2861,
      "capped_survival_rate": 0.7564912235998399,
      "commits": 153,
      "introduced": 71046,
      "largest_commit_share": 0.09804915125411705,
      "median_survival": 0.7015706806282722,
      "survival_rate": 0.7719787180136812,
      "surviving": 54846
    },
    "github-copilot": {
      "cap_lines": 231,
      "capped_survival_rate": 0.6641604010025063,
      "commits": 5,
      "introduced": 399,
      "largest_commit_share": 0.5789473684210527,
      "median_survival": 0.7222222222222222,
      "survival_rate": 0.6641604010025063,
      "surviving": 265
    },
    "opencode": {
      "cap_lines": 1242,
      "capped_survival_rate": 0.8874255252430229,
      "commits": 3,
      "introduced": 3189,
      "largest_commit_share": 0.3894637817497648,
      "median_survival": 0.8647342995169082,
      "survival_rate": 0.8874255252430229,
      "surviving": 2830
    }
  },
  "coverage": {
    "blame_flags": [
      "-w",
      "-M",
      "-C"
    ],
    "ignore_revs_file": true,
    "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": "7b6fe9ab0a22a98b616054476e11a9e64b18d4fc",
    "origin": "https://github.com/cloudflare/workers-sdk"
  },
  "total_commits": 8689,
  "verified": {
    "cap_lines": 2244,
    "capped_survival_rate": 0.7784965837472456,
    "commits": 208,
    "introduced": 92180,
    "largest_commit_share": 0.07556953786070732,
    "median_survival": 0.7203687445127305,
    "survival_rate": 0.793632024300282,
    "surviving": 73157
  }
}