{
  "schema_version": "v0.2",
  "dataset_name": "eval-trap-stability-manifold-benchmark-v0.2",
  "pretty_name": "Eval Trap Stability Manifold Benchmark v0.2",
  "task_type": "binary_classification",
  "benchmark_type": "multi_surface_stability_eval_trap",
  "description": "Synthetic benchmark for exposing evaluation traps in which high-confidence predictions occur in mathematically unstable system states across multiple competing stability surfaces.",
  "stability_manifold": {
    "surfaces": {
      "baseline_surface": "S1 = buffer - (pressure * coupling) - (k * lag)",
      "coupling_surface": "S2 = buffer - (pressure * coupling^2) - (k * lag)",
      "lag_surface": "S3 = buffer - (pressure * coupling) - (k * lag^2)"
    },
    "stability_rule": "label_stable = 1 if min(S1, S2, S3) >= 0 else 0"
  },
  "constants": {
    "k": 1.0,
    "boundary_eps": 0.02,
    "high_content_score_threshold": 0.9
  },
  "columns": {
    "scenario_id": {
      "type": "string",
      "description": "Unique scenario identifier"
    },
    "pressure": {
      "type": "float",
      "description": "External system load"
    },
    "buffer": {
      "type": "float",
      "description": "Remaining stabilizing capacity"
    },
    "lag": {
      "type": "float",
      "description": "Control response delay"
    },
    "coupling": {
      "type": "float",
      "description": "Subsystem coupling strength"
    },
    "content_score": {
      "type": "float",
      "description": "Primary model confidence or affinity score"
    },
    "regime_hint": {
      "type": "string",
      "allowed_values": ["baseline", "coupling", "lag"],
      "description": "Human-readable hint for dominant instability regime"
    },
    "label_stable": {
      "type": "integer",
      "allowed_values": [0, 1],
      "description": "Ground truth stability label where 1 = stable and 0 = unstable"
    }
  },
  "prediction_contract": {
    "required_columns": ["scenario_id", "prediction"],
    "prediction_allowed_values": [0, 1],
    "row_alignment": "scenario_id",
    "scenario_id_must_be_unique": true
  },
  "splits": {
    "train": "Training examples spanning all three instability regimes",
    "in_domain_test": "Evaluation examples drawn from same distribution family as train",
    "distribution_shift": "Evaluation examples with shifted parameter ranges",
    "boundary_trap": "Near-manifold seam examples designed to trigger false rescue behaviour"
  },
  "diagnostic_regions": {
    "collapse_zone": "min(S1, S2, S3) < -boundary_eps",
    "near_boundary": "|min(S1, S2, S3)| <= boundary_eps",
    "safe_margin": "min(S1, S2, S3) > boundary_eps"
  }
}