[
  {
    "policy_hash": "abc123def456",
    "outcome": "PASS",
    "unknown_rate": 0.0,
    "top_reasons": "[]"
  },
  {
    "policy_hash": "abc123def789",
    "outcome": "FAIL",
    "unknown_rate": 0.15,
    "top_reasons": "['Timeout', 'NetworkError']"
  },
  {
    "policy_hash": "xyz987ghi654",
    "outcome": "WARN",
    "unknown_rate": 0.05,
    "top_reasons": "['MinorFlake', 'ResourceLimit']"
  },
  {
    "policy_hash": "xyz987ghi321",
    "outcome": "PASS",
    "unknown_rate": 0.02,
    "top_reasons": "['FlakyTest']"
  }
]