{
  "baseline": {
    "age_matched": {
      "buckets_used": 5,
      "gap": 0.16362571800283765,
      "tagged_lines_covered": 1.0,
      "tagged_rate": 0.8063582440429681,
      "untagged_rate": 0.6427325260401304
    },
    "by_age": [
      {
        "from_days": 0,
        "tagged": {
          "cap_lines": 1908,
          "capped_survival_rate": 0.9366931893130557,
          "commits": 86,
          "introduced": 43366,
          "largest_commit_share": 0.12770373103352858,
          "median_survival": 0.9718578572647041,
          "survival_rate": 0.9270857353687221,
          "surviving": 40204
        },
        "to_days": 30,
        "untagged": {
          "cap_lines": 1465,
          "capped_survival_rate": 0.8942819238849995,
          "commits": 40,
          "introduced": 11957,
          "largest_commit_share": 0.13389646232332525,
          "median_survival": 0.9438608776844071,
          "survival_rate": 0.8937860667391486,
          "surviving": 10687
        }
      },
      {
        "from_days": 30,
        "tagged": {
          "cap_lines": 692,
          "capped_survival_rate": 0.8893133087974086,
          "commits": 69,
          "introduced": 19165,
          "largest_commit_share": 0.22885468301591444,
          "median_survival": 0.9305555555555556,
          "survival_rate": 0.8796243151578398,
          "surviving": 16858
        },
        "to_days": 90,
        "untagged": {
          "cap_lines": 1343,
          "capped_survival_rate": 0.8917856324158409,
          "commits": 58,
          "introduced": 24949,
          "largest_commit_share": 0.46130105415046696,
          "median_survival": 0.9502564102564103,
          "survival_rate": 0.8674495971782437,
          "surviving": 21642
        }
      },
      {
        "from_days": 90,
        "tagged": {
          "cap_lines": 2953,
          "capped_survival_rate": 0.8813959360022047,
          "commits": 73,
          "introduced": 38987,
          "largest_commit_share": 0.10903634544848283,
          "median_survival": 0.9234567901234568,
          "survival_rate": 0.888321748275066,
          "surviving": 34633
        },
        "to_days": 180,
        "untagged": {
          "cap_lines": 883,
          "capped_survival_rate": 0.7322829658540175,
          "commits": 141,
          "introduced": 25711,
          "largest_commit_share": 0.1738555482089378,
          "median_survival": 0.787761601455869,
          "survival_rate": 0.7737933180350822,
          "surviving": 19895
        }
      },
      {
        "from_days": 180,
        "tagged": {
          "cap_lines": 1070,
          "capped_survival_rate": 0.5489617298964191,
          "commits": 172,
          "introduced": 39797,
          "largest_commit_share": 0.13807573435183557,
          "median_survival": 0.6363636363636364,
          "survival_rate": 0.6063773651280248,
          "surviving": 24132
        },
        "to_days": 365,
        "untagged": {
          "cap_lines": 930,
          "capped_survival_rate": 0.512456619746139,
          "commits": 418,
          "introduced": 220290,
          "largest_commit_share": 0.36116482818103407,
          "median_survival": 0.5,
          "survival_rate": 0.17874619819329066,
          "surviving": 39376
        }
      },
      {
        "from_days": 365,
        "tagged": {
          "cap_lines": 853,
          "capped_survival_rate": 0.4959369817578773,
          "commits": 33,
          "introduced": 5864,
          "largest_commit_share": 0.17138472032742155,
          "median_survival": 0.41081081081081083,
          "survival_rate": 0.4863574351978172,
          "surviving": 2852
        },
        "to_days": 730,
        "untagged": {
          "cap_lines": 689,
          "capped_survival_rate": 0.43784464267493806,
          "commits": 292,
          "introduced": 134350,
          "largest_commit_share": 0.419240788983997,
          "median_survival": 0.30277777777777776,
          "survival_rate": 0.32924451060662446,
          "surviving": 44234
        }
      },
      {
        "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": 527,
      "commits_before": 0,
      "date": "2025-05-07",
      "introduced_before": 0,
      "tagged_commits_before": 0,
      "tagged_introduced_before": 0
    },
    "untagged": {
      "cap_lines": 963,
      "capped_survival_rate": 0.583725476071351,
      "commits": 949,
      "introduced": 417257,
      "largest_commit_share": 0.19067624988915705,
      "median_survival": 0.5203252032520326,
      "survival_rate": 0.32554037439755357,
      "surviving": 135834
    }
  },
  "by_agent": {
    "claude-code": {
      "cap_lines": 1579,
      "capped_survival_rate": 0.8132590797078386,
      "commits": 301,
      "introduced": 116227,
      "largest_commit_share": 0.047278171165047705,
      "median_survival": 0.9110822113423092,
      "survival_rate": 0.8302545880045085,
      "surviving": 96498
    },
    "cursor": {
      "cap_lines": 3969,
      "capped_survival_rate": 0.9458868543317847,
      "commits": 14,
      "introduced": 7318,
      "largest_commit_share": 0.5423613009018857,
      "median_survival": 0.925349538066301,
      "survival_rate": 0.9458868543317847,
      "surviving": 6922
    },
    "devin": {
      "cap_lines": 1136,
      "capped_survival_rate": 0.7868561278863233,
      "commits": 9,
      "introduced": 2252,
      "largest_commit_share": 0.5044404973357016,
      "median_survival": 0.5132978723404256,
      "survival_rate": 0.7868561278863233,
      "surviving": 1772
    },
    "gemini": {
      "cap_lines": 432,
      "capped_survival_rate": 0.5671462202601473,
      "commits": 106,
      "introduced": 20528,
      "largest_commit_share": 0.26977786438035856,
      "median_survival": 0.595261721657157,
      "survival_rate": 0.6161827747466875,
      "surviving": 12649
    },
    "openai-codex": {
      "cap_lines": 424,
      "capped_survival_rate": 0.9812646370023419,
      "commits": 3,
      "introduced": 854,
      "largest_commit_share": 0.4964871194379391,
      "median_survival": 0.9858490566037735,
      "survival_rate": 0.9812646370023419,
      "surviving": 838
    }
  },
  "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": 1578,
    "capped_survival_rate": 0.7336838849365914,
    "commits": 4,
    "introduced": 3233,
    "largest_commit_share": 0.488091555830498,
    "median_survival": 0.8056107311676557,
    "survival_rate": 0.7336838849365914,
    "surviving": 2372
  },
  "repository": {
    "head": "2c54cefc7c6b67fef2b51401bcb7eb0e87d8b98d",
    "origin": "https://github.com/NovaSky-AI/SkyRL"
  },
  "total_commits": 1386,
  "verified": {
    "cap_lines": 1249,
    "capped_survival_rate": 0.7794695404005744,
    "commits": 433,
    "introduced": 147179,
    "largest_commit_share": 0.03762765068386115,
    "median_survival": 0.8254278987328377,
    "survival_rate": 0.8063582440429681,
    "surviving": 118679
  }
}