amountcommitment or valuecommitment

Start by inspecting the listunspent and gettxout RPC implementations and their existing tests, if present, to compare how the commitment fields are exposed. Clarify the intended field name and compatibility or deprecation requirements; done means the two RPC outputs follow the agreed naming consistently with appropriate coverage.

In listunspent RPC there is ammountcommitment:

$ elements-cli -rpcwallet=real listunspent
[
  {
    "txid": "2ef46ad30a0a002fadb5214c1c746d361a4adfdde1d47a3a6bd77e29229c3151",
    "vout": 1,
    "address": "H4iZbR67ywSKvpRgYqGSuqfmAtJLxgiTQ4",
    "label": "c2",
    "redeemScript": "001489a5ca6bfa43e3e60bc8545fd448262bc29cd587",
    "scriptPubKey": "a914ec395de045564b4851f188d8991b3a11ac7408db87",
    "amount": 0.00000001,
    "assetcommitment": "0b80363e4a0f0332e9a6cd338eed1247eb59242e047b8c2dacdbc9590c609484c6",
    "asset": "6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d",
    "amountcommitment": "09ff0377d7f474048fff55c41bfa369624db069f9b30a7e574ab49d335c3a0cbee",
    "amountblinder": "258f64b23ae417a63bf8167728aeecb95889464b1af9b8d1c48ba29670e58933",
    "assetblinder": "75082cc0e11be120913e7f5b8ca74b2019af64812488dfd858a47a3e8db39db8",
    "confirmations": 299187,
    "spendable": true,
    "solvable": true,
    "desc": "sh(wpkh([8baa2a22/0'/0'/1213']0274c2569ed3907d21b5b4850daf6a324a402c96e9b4fb67f5bb72f35ce38ce84d))#vs2k8pq9",
    "safe": true
  }
]

But in gettxout RPC output the same is written as valuecommitment:

$ elements-cli -rpcwallet=real gettxout 2ef46ad30a0a002fadb5214c1c746d361a4adfdde1d47a3a6bd77e29229c3151 1
{
  "bestblock": "9fd47ccb007675fc1fb6147c1d62cd9346f76d9e5edbcf4af17d0fc19813d23a",
  "confirmations": 299189,
  "valuecommitment": "09ff0377d7f474048fff55c41bfa369624db069f9b30a7e574ab49d335c3a0cbee",
  "assetcommitment": "0b80363e4a0f0332e9a6cd338eed1247eb59242e047b8c2dacdbc9590c609484c6",
  "commitmentnonce": "",
  "scriptPubKey": {
    "asm": "OP_HASH160 ec395de045564b4851f188d8991b3a11ac7408db OP_EQUAL",
    "desc": "addr(H4iZbR67ywSKvpRgYqGSuqfmAtJLxgiTQ4)#8v4mh22p",
    "hex": "a914ec395de045564b4851f188d8991b3a11ac7408db87",
    "address": "H4iZbR67ywSKvpRgYqGSuqfmAtJLxgiTQ4",
    "type": "scripthash"
  },
  "coinbase": false
}

Could be something to deprecate in the future version. @delta1