{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "First-pass simulation parameter sheet: design-only consistent. Hub per chain, default k/fee, inventory targets. Use for scenario-based (design routing stress test, topology sensitivity) simulation.",
  "version": "1.0.0",
  "updated": "2026-02-26",
  "sizingFormula": {
    "doc": "docs/11-safe-inventory-sizing.md",
    "formula": "I_T^* >= V_epoch * sigma * (1 + T_refill/T_epoch) / (1 - beta) + gamma_buffer",
    "inputs": ["V_epoch", "sigma", "T_refill", "T_epoch", "beta (bridgeBeta)", "gamma_buffer (optional)"],
    "depthRule": "D_0 ≈ (0.5 to 1.0) * I_T^*"
  },
  "defaultPmm": {
    "k": 0.1,
    "feeBps": 35,
    "inventoryTargetUnits": "1000000",
    "depthD0Units": "500000"
  },
  "eurPegMultiplier": 1.0,
  "eurUsd": 1.10,
  "eurDefaults": { "k": 0.2, "sigma": 2, "feeBps": 35, "note": "cWEURC/cWEURT: higher k and sigma than USD" },
  "chains": {
    "1": {
      "name": "Ethereum Mainnet",
      "hubStable": "USDC",
      "k": 0.1,
      "feeBps": 35,
      "inventoryTargetUnits": "1000000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "50"
    },
    "10": {
      "name": "Optimism",
      "hubStable": "USDC",
      "k": 0.1,
      "feeBps": 25,
      "inventoryTargetUnits": "500000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "20"
    },
    "25": {
      "name": "Cronos",
      "hubStable": "USDT",
      "k": 0.12,
      "feeBps": 30,
      "inventoryTargetUnits": "300000",
      "bridgeBeta": 0.002,
      "bridgeGammaUnits": "15"
    },
    "56": {
      "name": "BSC (BNB Chain)",
      "hubStable": "USDT",
      "k": 0.1,
      "feeBps": 50,
      "inventoryTargetUnits": "800000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "10"
    },
    "100": {
      "name": "Gnosis Chain",
      "hubStable": "USDC",
      "k": 0.12,
      "feeBps": 30,
      "inventoryTargetUnits": "400000",
      "bridgeBeta": 0.0015,
      "bridgeGammaUnits": "15"
    },
    "137": {
      "name": "Polygon",
      "hubStable": "USDC",
      "k": 0.1,
      "feeBps": 50,
      "inventoryTargetUnits": "600000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "5"
    },
    "42161": {
      "name": "Arbitrum One",
      "hubStable": "USDC",
      "k": 0.1,
      "feeBps": 25,
      "inventoryTargetUnits": "500000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "15"
    },
    "8453": {
      "name": "Base",
      "hubStable": "USDC",
      "k": 0.1,
      "feeBps": 25,
      "inventoryTargetUnits": "400000",
      "bridgeBeta": 0.001,
      "bridgeGammaUnits": "10"
    },
    "43114": {
      "name": "Avalanche C-Chain",
      "hubStable": "USDC",
      "k": 0.11,
      "feeBps": 28,
      "inventoryTargetUnits": "350000",
      "bridgeBeta": 0.0015,
      "bridgeGammaUnits": "20"
    },
    "42220": {
      "name": "Celo",
      "hubStable": "USDC",
      "k": 0.12,
      "feeBps": 30,
      "inventoryTargetUnits": "300000",
      "bridgeBeta": 0.002,
      "bridgeGammaUnits": "15"
    },
    "1111": {
      "name": "Wemix",
      "hubStable": "USDT",
      "k": 0.12,
      "feeBps": 30,
      "inventoryTargetUnits": "250000",
      "bridgeBeta": 0.002,
      "bridgeGammaUnits": "20"
    }
  },
  "scenarioDefaults": {
    "designRoutingStressTest": {
      "assumeAllChainsExist": true,
      "onePmmPerCwTokenVsHub": true,
      "optionalExtraQuotePools": ["1", "56", "137"]
    },
    "topologySensitivity": {
      "hubModelChains": "all",
      "fullQuoteModelChains": ["1", "56", "137"]
    }
  }
}