{
  "tool_id": "muscle_gain_potential",
  "slug": "muscle-gain-potential-calculator",
  "path": "/muscle-gain-potential-calculator/",
  "mode": "engine_module",
  "usage": "Client-side calculator. Open https://aifithub.io/muscle-gain-potential-calculator/ and fill in the inputs; results render in-browser. Also importable as ES module from https://aifithub.io/engines/muscle-gain-potential-calculator.js — call compute(input) with the JSON shape below.",
  "methodology": "https://aifithub.io/methodology/muscle-gain-potential-calculator/",
  "sample_input": {
    "tool": "muscle_gain_potential",
    "sex": "male",
    "height_cm": 178,
    "wrist_cm": 17.5,
    "ankle_cm": 22,
    "current_weight_kg": 80,
    "current_body_fat_pct": 18
  },
  "input_schema": {
    "type": "object",
    "properties": {
      "tool": {
        "type": "string"
      },
      "sex": {
        "type": "string",
        "enum": [
          "male",
          "female"
        ]
      },
      "height_cm": {
        "type": "number"
      },
      "wrist_cm": {
        "type": "number"
      },
      "ankle_cm": {
        "type": "number"
      },
      "current_weight_kg": {
        "type": "number"
      },
      "current_body_fat_pct": {
        "type": "number"
      }
    },
    "required": [
      "tool",
      "sex",
      "height_cm",
      "wrist_cm",
      "ankle_cm",
      "current_weight_kg",
      "current_body_fat_pct"
    ]
  },
  "output_schema": {
    "type": "object",
    "properties": {
      "maxLeanMassKg": {
        "type": "number"
      },
      "maxWeightAt10PctBf": {
        "type": "number"
      },
      "currentLeanMassKg": {
        "type": "number"
      },
      "potentialReachedPct": {
        "type": "number"
      },
      "remainingGainKg": {
        "type": "number"
      },
      "estimatedYears": {
        "type": "number"
      },
      "heightCm": {
        "type": "number"
      }
    }
  }
}