{
  "candidate_rules": [],
  "challenge": {
    "attack_surface": [
      "media-container",
      "false-positive-resistance"
    ],
    "control_type": "negative",
    "difficulty": "adversarial",
    "expected_decision": "PASS",
    "oracle_ids": [
      "LF-ORACLE-MEDIA-CONTAINER-HARD-NEGATIVE"
    ],
    "related_cases": [],
    "severity": "informational",
    "techniques": [
      "magic-collision"
    ],
    "transformations": [
      "false-magic"
    ]
  },
  "corpus_id": "LF-CH-MCONT-0006",
  "description": "PNG has ZIP magic-looking trailing bytes that do not form a valid archive.",
  "expected_rules": [],
  "generator": "challenges.generate_challenge",
  "ground_truth": "synthetic-generated",
  "must_not_rules": [
    "LF-ARCHIVE-TRAVERSAL"
  ],
  "repo_name": "media-png-fake-zip-magic-control",
  "repo_type": "model",
  "safe_fixture": true,
  "safety": "inert/canary-only",
  "schema": 1,
  "validation": {
    "kind": "verify-package",
    "target": "."
  }
}