{
  "contract": "governance",
  "version": "1.0.0",
  "description": "On-chain parameter governance. The deployer becomes the admin. Anyone can propose a parameter change; the admin approves or rejects it. Used to manage gas_price, messenger_entry_fee, relay_fee, etc.",
  "methods": [
    {
      "name": "init",
      "description": "Initialize the contract, setting the caller as the admin. Must be called once after deployment.",
      "args": []
    },
    {
      "name": "propose",
      "description": "Submit a proposal to change a named parameter. Anyone can propose. Logs 'proposed: <key>=<value>'.",
      "args": [
        {"name": "key",   "type": "string", "description": "Parameter name (max 64 chars)"},
        {"name": "value", "type": "string", "description": "Proposed new value (max 256 chars)"}
      ]
    },
    {
      "name": "approve",
      "description": "Admin approves the pending proposal for a key, committing it as the live value. Logs 'approved: <key>'.",
      "args": [
        {"name": "key", "type": "string", "description": "Parameter key to approve"}
      ]
    },
    {
      "name": "reject",
      "description": "Admin rejects and removes the pending proposal for a key. Logs 'rejected: <key>'.",
      "args": [
        {"name": "key", "type": "string", "description": "Parameter key to reject"}
      ]
    },
    {
      "name": "get",
      "description": "Read the current live value of a parameter. Logs 'value: <value>' or 'not set: <key>'.",
      "args": [
        {"name": "key", "type": "string", "description": "Parameter key"}
      ]
    },
    {
      "name": "get_pending",
      "description": "Read the pending proposed value. Logs 'pending: <value>' or 'no pending: <key>'.",
      "args": [
        {"name": "key", "type": "string", "description": "Parameter key"}
      ]
    },
    {
      "name": "set_admin",
      "description": "Transfer the admin role to a new address. Only the current admin may call this. Logs 'admin: <new_admin>'.",
      "args": [
        {"name": "new_admin", "type": "string", "description": "New admin address (hex pubkey)"}
      ]
    }
  ]
}