{
  "task_id": "MED4",
  "title": "SPGR MRI T1 mapping with field scaling, protein binding, and T2* decay",
  "category": "Medical imaging physics",
  "instruction_file": "instruction.md",
  "input_data": "All parameters and equations needed for the task are embedded in instruction.md.",
  "action_schema": {
    "type": "object",
    "properties": {
      "apparent_gd_conc_neglecting_t2star_mm": {
        "type": "number"
      },
      "postcontrast_signal_at_nominal_5deg": {
        "type": "number"
      },
      "precontrast_effective_m0": {
        "type": "number"
      },
      "precontrast_nominal_ernst_angle_deg": {
        "type": "number"
      },
      "precontrast_r1_s_inv": {
        "type": "number"
      },
      "problem_id": {
        "type": "string",
        "const": "MED4"
      },
      "true_albumin_bound_gd_fraction": {
        "type": "number"
      },
      "true_postcontrast_r1_s_inv": {
        "type": "number"
      },
      "true_tissue_gadolinium_conc_mm": {
        "type": "number"
      }
    },
    "required": [
      "apparent_gd_conc_neglecting_t2star_mm",
      "postcontrast_signal_at_nominal_5deg",
      "precontrast_effective_m0",
      "precontrast_nominal_ernst_angle_deg",
      "precontrast_r1_s_inv",
      "problem_id",
      "true_albumin_bound_gd_fraction",
      "true_postcontrast_r1_s_inv",
      "true_tissue_gadolinium_conc_mm"
    ],
    "additionalProperties": true,
    "description": "All numerical values must be finite JSON numbers. Exact per-field domains, units and tolerances are specified by the instruction and verifier."
  },
  "external_data_required": false
}