cardano-protocol-params

name	cardano-protocol-params
description	Protocol parameters: fetch pparams, understand fees, min-UTxO, execution budgets. Read-only diagnostics.
allowed-tools	["Bash(cardano-cli:*)","Read"]
context	["!cardano-cli version 2>&1 | head -5"]

cardano-protocol-params

When to use

• Fetching fresh protocol parameters
• Understanding fee calculation inputs
• Debugging min-UTxO or execution budget issues
• Comparing params across networks

Operating rules (must follow)

• Always fetch fresh params for the target network
• Never assume mainnet params apply to testnets
• Keep pparams.json with tx artifacts for reproducibility

Key parameters explained

Fee calculation

minFeeA: 44           # lovelace per byte
minFeeB: 155381       # base fee in lovelace

Formula: fee = minFeeA * txSize + minFeeB

Min UTxO

coinsPerUTxOByte: 4310   # lovelace per byte of UTxO

Minimum ADA required = size of UTxO (including datum) × coinsPerUTxOByte

Execution units (Plutus)

maxTxExecutionUnits:
  steps: 10000000000     # CPU budget
  memory: 10000000       # Memory budget
executionUnitPrices:
  priceSteps: 0.0000721  # lovelace per step
  priceMemory: 0.0577    # lovelace per memory unit