{
  "tool": "stock-out-sentinel",
  "author": "brandon-buonaguro",
  "version": "1.0.0",
  "description": "Interactive calculator for stock-out probability based on demand variance and lead time uncertainty.",
  "formula": {
    "expression": "SS = Z × σ_demand × √LT",
    "variables": {
      "SS": "Safety Stock (units)",
      "Z": "Standard normal deviate for target service level",
      "σ_demand": "Standard deviation of daily demand (units)",
      "LT": "Lead time (days)"
    },
    "service_level_map": {
      "80": 0.84,
      "85": 1.04,
      "90": 1.28,
      "95": 1.65,
      "97.5": 1.96,
      "99": 2.33,
      "99.9": 3.09
    }
  },
  "constraints": {
    "min_daily_demand": 10,
    "max_daily_demand": 500,
    "min_lead_time_days": 1,
    "max_lead_time_days": 30,
    "min_sigma": 1,
    "max_sigma": 100,
    "min_service_level_pct": 80,
    "max_service_level_pct": 99.9
  },
  "sources": [
    "https://4ort.xyz/entity/economic-order-quantity",
    "https://4ort.xyz/entity/safety-stock"
  ],
  "use_case": "Retail inventory management, perishable goods forecasting, supply chain risk mitigation",
  "deployed_at": "/sentinel.html"
}