{
  "model": "Qwen2.5-3B",
  "lineage": "pilot-reference (base; the lens ships as Llama-3.2-3B)",
  "feature_recipe": {
    "logprob": "[mean_lp,min_lp,mean_ent,max_ent] @ max_tokens=24,temp=0,top5",
    "resid": "mid-stack mean-pooled residual @ layer L*=3"
  },
  "instruments": {
    "logprob": {
      "quants": {
        "fp16": {
          "cv_auroc": 0.935,
          "off_map_thr": 0.95,
          "held_out_fp": 0.029,
          "off_map_recall": 0.292,
          "null": {
            "mean": 0.493,
            "p95": 0.646,
            "n": 200
          },
          "significant": true,
          "probe": {
            "mean": [
              -0.328838,
              -1.451885,
              0.511574,
              1.409672
            ],
            "scale": [
              0.154456,
              0.64267,
              0.149652,
              0.176547
            ],
            "coef": [
              -1.501736,
              -0.891843,
              0.469961,
              0.364949
            ],
            "intercept": -0.726892,
            "uncertain_thr": 0.881,
            "off_map_thr": 0.95
          }
        },
        "nf4": {
          "cv_auroc": 0.871,
          "off_map_thr": 0.936,
          "held_out_fp": 0.029,
          "off_map_recall": 0.125,
          "null": {
            "mean": 0.501,
            "p95": 0.652,
            "n": 200
          },
          "significant": true,
          "probe": {
            "mean": [
              -0.363223,
              -1.715068,
              0.531023,
              1.449066
            ],
            "scale": [
              0.156806,
              0.762434,
              0.136516,
              0.139231
            ],
            "coef": [
              -0.792926,
              0.473791,
              0.817925,
              1.165095
            ],
            "intercept": -0.643566,
            "uncertain_thr": 0.816,
            "off_map_thr": 0.936
          }
        }
      }
    },
    "resid": {
      "layer": 3,
      "quants": {
        "fp16": {
          "cv_auroc": 1.0,
          "off_map_thr": 0.475,
          "held_out_fp": 0.0,
          "off_map_recall": 0.971,
          "null": {
            "mean": 0.537,
            "p95": 0.678,
            "n": 50
          },
          "significant": true,
          "uncertain_thr": 0.355
        },
        "nf4": {
          "cv_auroc": 1.0,
          "off_map_thr": 0.477,
          "held_out_fp": 0.0,
          "off_map_recall": 1.0,
          "null": {
            "mean": 0.512,
            "p95": 0.629,
            "n": 50
          },
          "significant": true,
          "uncertain_thr": 0.357
        }
      },
      "weights_ref": "resid_probe_Qwen2.5-3B.npz"
    }
  },
  "scope": "flags off-map/fabricated ENTITIES + off-distribution inputs and hedges on them; NOT a truth oracle (blind to confident on-manifold reasoning ~0.61 and fluent lies ~0.59); per-model + per-quant calibration; no activation steering.",
  "regime_note": "each quant carries its OWN reals-anchored thresholds (logprob scores shift under quant; resid is robust)."
}