{
  "passed": true,
  "checks": [
    "Every original work-package field and gate retained unchanged in the refined plan.",
    "Original-plan byte hash agrees; physical records remain empty.",
    "Finite cold reservoir warms and its exergy depletion agrees with the integrated cold-resource ledger.",
    "Ten independent heat-transfer/thermal-mass/valve/expander sensitivities conserve energy and satisfy entropy screen.",
    "Zero expander efficiency produces zero shaft work.",
    "All model/report Python sources compile."
  ],
  "parameter_sensitivities": [
    {
      "case": "zero-expander",
      "changes": "{\"expander_efficiency_assumed\": 0}",
      "pair_shaft_W": 0.0,
      "pair_intake_mgs": 3.701160132938677,
      "minimum_cold_reset_W": 0.35610330516999544
    },
    {
      "case": "low-expander",
      "changes": "{\"expander_efficiency_assumed\": 0.3}",
      "pair_shaft_W": 0.005862556522624818,
      "pair_intake_mgs": 3.7018394890531807,
      "minimum_cold_reset_W": 0.35595032104741764
    },
    {
      "case": "higher-expander",
      "changes": "{\"expander_efficiency_assumed\": 0.8}",
      "pair_shaft_W": 0.015666010828196807,
      "pair_intake_mgs": 3.7029787347643572,
      "minimum_cold_reset_W": 0.3556936036642419
    },
    {
      "case": "thermal-leak",
      "changes": "{\"ambient_wall_conductance_WK\": 0.5}",
      "pair_shaft_W": 0.004014069173338114,
      "pair_intake_mgs": 2.024826466140846,
      "minimum_cold_reset_W": 0.4604342828538652
    },
    {
      "case": "lower-heat-transfer",
      "changes": "{\"gas_wall_conductance_WK\": 0.25}",
      "pair_shaft_W": 0.009655477642501086,
      "pair_intake_mgs": 3.5346889134442216,
      "minimum_cold_reset_W": 0.35035748606844486
    },
    {
      "case": "higher-heat-transfer",
      "changes": "{\"gas_wall_conductance_WK\": 1}",
      "pair_shaft_W": 0.013061314618070818,
      "pair_intake_mgs": 3.7642864618900083,
      "minimum_cold_reset_W": 0.35816961564899613
    },
    {
      "case": "higher-thermal-mass",
      "changes": "{\"wall_heat_capacity_JK\": 8}",
      "pair_shaft_W": 0.0017074878478796837,
      "pair_intake_mgs": 1.9827005828987427,
      "minimum_cold_reset_W": 0.6537443162803172
    },
    {
      "case": "lower-valve-Cd",
      "changes": "{\"discharge_coefficient\": 0.5}",
      "pair_shaft_W": 0.012187924935025452,
      "pair_intake_mgs": 3.690987647063433,
      "minimum_cold_reset_W": 0.3550448938601754
    },
    {
      "case": "low-head-regularization-half",
      "changes": "{\"low_pressure_regularization_Pa\": 0.5}",
      "pair_shaft_W": 0.01174045133003584,
      "pair_intake_mgs": 3.7030432308706267,
      "minimum_cold_reset_W": 0.35579966096070204
    },
    {
      "case": "low-head-regularization-double",
      "changes": "{\"low_pressure_regularization_Pa\": 2}",
      "pair_shaft_W": 0.011738985776120403,
      "pair_intake_mgs": 3.7017282574525465,
      "minimum_cold_reset_W": 0.3557909767949905
    }
  ],
  "interpretation": "Consistency checks and assumed-input sensitivities, not empirical validation."
}