{
  "context": "This criteria evaluates how well the engineer uses atheris package capabilities to instrument and fuzz-test a URL parser function. The focus is on proper use of function-level instrumentation, fuzzing setup, and structured input generation.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Function instrumentation",
      "description": "Uses the instrument_func() decorator or equivalent to instrument the parse_url function for coverage tracking",
      "max_score": 30
    },
    {
      "name": "Fuzzer initialization",
      "description": "Correctly calls Setup() with sys.argv and the test callback function before starting fuzzing",
      "max_score": 20
    },
    {
      "name": "FuzzedDataProvider usage",
      "description": "Uses FuzzedDataProvider to convert raw fuzzing bytes into structured string inputs (e.g., ConsumeUnicode, ConsumeUnicodeNoSurrogates, or ConsumeString)",
      "max_score": 25
    },
    {
      "name": "Fuzzer execution",
      "description": "Calls Fuzz() to start the fuzzing loop, or uses -atheris_runs argument to control execution",
      "max_score": 15
    },
    {
      "name": "Test callback",
      "description": "Implements test_one_input(data) function that accepts bytes and properly handles exceptions from the target function",
      "max_score": 10
    }
  ]
}