{
  "tool_id": "race_time_predictor",
  "slug": "race-time-predictor",
  "path": "/race-time-predictor/",
  "mode": "engine_module",
  "usage": "Client-side calculator. Open https://aifithub.io/race-time-predictor/ and fill in the inputs; results render in-browser. Also importable as ES module from https://aifithub.io/engines/race-time-predictor.js — call compute(input) with the JSON shape below.",
  "methodology": "https://aifithub.io/methodology/race-time-predictor/",
  "sample_input": {
    "tool": "race_time_predictor",
    "known_distance_km": 10,
    "known_time_minutes": 50
  },
  "input_schema": {
    "type": "object",
    "properties": {
      "tool": {
        "type": "string"
      },
      "known_distance_km": {
        "type": "number"
      },
      "known_time_minutes": {
        "type": "number"
      }
    },
    "required": [
      "tool",
      "known_distance_km",
      "known_time_minutes"
    ]
  },
  "output_schema": {
    "type": "object",
    "properties": {
      "predictions": {
        "type": "array",
        "description": "Predicted finish times per target distance",
        "items": {
          "type": "object",
          "properties": {
            "label": {
              "type": "string"
            },
            "distanceKm": {
              "type": "number"
            },
            "timeMinutes": {
              "type": "number"
            },
            "paceMinPerKm": {
              "type": "number"
            },
            "paceMinPerMile": {
              "type": "number"
            },
            "difficultyDelta": {
              "type": "number",
              "description": "Pace ratio vs baseline (1 = same effort, >1 = harder)"
            }
          }
        }
      },
      "baselinePaceMinPerKm": {
        "type": "number"
      },
      "baselinePaceMinPerMile": {
        "type": "number"
      }
    }
  }
}