{
  "version": "fak-calibrate/v1",
  "prediction": {
    "metric": "resident_tokens",
    "claimed": 48000,
    "unit": "tokens",
    "basis": "planner residency forecast for the prefill working set",
    "lower_is_better": false
  },
  "measurement": {
    "realized": 47200,
    "provenance": "WITNESSED",
    "source": "resident-set meter the planner does not author",
    "measured": true,
    "sample": 64
  },
  "band": { "calibrated_max": 0.10, "min_sample": 8 },
  "verdict": "CALIBRATED",
  "calib_err": 0.017,
  "reason": "realized 47200 met the 48000 forecast within 1.7% (under the 10% band) — the residency forecast holds"
}