Add Monad Testnet Config and Error Mapping (#15993)

* add monad testnet

* add remaining config

* nit

* bump down no new heads

* remove redundant

* update finality setting from product

* fix error classification

.changeset/three-meals-promise.md

@@ -0,0 +1,5 @@
+---
+"chainlink": patch
+---
+
+#added Monad Testnet Config

core/chains/evm/client/errors.go

@@ -296,14 +296,18 @@ var sei = ClientErrors{
 	Fatal: regexp.MustCompile(`(: |^)'*out of gas|insufficient fee|Tx too large. Max size is \d+, but got \d+|: insufficient funds`),
 }
 
+var monad = ClientErrors{
+	Fatal: regexp.MustCompile("Gas limit too low"),
+}
+
 const TerminallyStuckMsg = "transaction terminally stuck"
 
 // Tx.Error messages that are set internally so they are not chain or client specific
 var internal = ClientErrors{
 	TerminallyStuck: regexp.MustCompile(TerminallyStuckMsg),
 }
 
-var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, treasure, mantle, aStar, hedera, gnosis, sei, internal}
+var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, treasure, mantle, aStar, hedera, gnosis, sei, monad, internal}
 
 // ClientErrorRegexes returns a map of compiled regexes for each error type
 func ClientErrorRegexes(errsRegex config.ClientErrors) *ClientErrors {

core/chains/evm/client/errors_test.go

@@ -452,6 +452,8 @@ func Test_Eth_Errors_Fatal(t *testing.T) {
 		{"Tx too large. Max size is 2048576, but got 2097431", true, "Sei"},
 		{": insufficient funds", true, "Sei"},
 		{"insufficient fee", true, "Sei"},
+
+		{"Gas limit too low", true, "monad"},
 	}
 
 	for _, test := range tests {

core/chains/evm/config/toml/defaults/Monad_Testnet.toml

@@ -0,0 +1,24 @@
+ChainID = '10143'
+# finality_depth was: 0
+FinalityDepth = 120
+# block_time was:  1s, adding 1 second buffer  
+LogPollInterval = '2s'
+# No WS Support
+LogBroadcasterEnabled = false
+FinalityTagEnabled = false
+# finality_depth * block_time / 60 secs = < 1 min (finality time)
+NoNewFinalizedHeadsThreshold = '1m'
+NoNewHeadsThreshold = '1m'
+
+[GasEstimator]
+EIP1559DynamicFees = false
+Mode = 'FeeHistory'
+
+[GasEstimator.FeeHistory]
+CacheTimeout = '2s'
+
+[GasEstimator.BlockHistory]
+BlockHistorySize = 100
+
+[NodePool]
+NewHeadsPollInterval = '4s' 

docs/CONFIG.md

@@ -8526,6 +8526,113 @@ GasLimitDefault = 400000
 
 </p></details>
 
+<details><summary>Monad Testnet (10143)</summary><p>
+
+```toml
+AutoCreateKey = true
+BlockBackfillDepth = 10
+BlockBackfillSkip = false
+FinalityDepth = 120
+FinalityTagEnabled = false
+LogBackfillBatchSize = 1000
+LogPollInterval = '2s'
+LogKeepBlocksDepth = 100000
+LogPrunePageSize = 0
+BackupLogPollerBlockDelay = 100
+MinIncomingConfirmations = 3
+MinContractPayment = '0.00001 link'
+NonceAutoSync = true
+NoNewHeadsThreshold = '1m0s'
+LogBroadcasterEnabled = false
+RPCDefaultBatchSize = 250
+RPCBlockQueryDelay = 1
+FinalizedBlockOffset = 0
+NoNewFinalizedHeadsThreshold = '1m0s'
+
+[Transactions]
+Enabled = true
+ForwardersEnabled = false
+MaxInFlight = 16
+MaxQueued = 250
+ReaperInterval = '1h0m0s'
+ReaperThreshold = '168h0m0s'
+ResendAfterThreshold = '1m0s'
+
+[Transactions.AutoPurge]
+Enabled = false
+
+[Transactions.TransactionManagerV2]
+Enabled = false
+
+[BalanceMonitor]
+Enabled = true
+
+[GasEstimator]
+Mode = 'FeeHistory'
+PriceDefault = '20 gwei'
+PriceMax = '115792089237316195423570985008687907853269984665.640564039457584007913129639935 tether'
+PriceMin = '1 gwei'
+LimitDefault = 500000
+LimitMax = 500000
+LimitMultiplier = '1'
+LimitTransfer = 21000
+EstimateLimit = false
+BumpMin = '5 gwei'
+BumpPercent = 20
+BumpThreshold = 3
+EIP1559DynamicFees = false
+FeeCapDefault = '100 gwei'
+TipCapDefault = '1 wei'
+TipCapMin = '1 wei'
+
+[GasEstimator.BlockHistory]
+BatchSize = 25
+BlockHistorySize = 100
+CheckInclusionBlocks = 12
+CheckInclusionPercentile = 90
+TransactionPercentile = 60
+
+[GasEstimator.FeeHistory]
+CacheTimeout = '2s'
+
+[HeadTracker]
+HistoryDepth = 100
+MaxBufferSize = 3
+SamplingInterval = '1s'
+MaxAllowedFinalityDepth = 10000
+FinalityTagBypass = true
+PersistenceEnabled = true
+
+[NodePool]
+PollFailureThreshold = 5
+PollInterval = '10s'
+SelectionMode = 'HighestHead'
+SyncThreshold = 5
+LeaseDuration = '0s'
+NodeIsSyncingEnabled = false
+FinalizedBlockPollInterval = '5s'
+EnforceRepeatableRead = true
+DeathDeclarationDelay = '1m0s'
+NewHeadsPollInterval = '4s'
+
+[OCR]
+ContractConfirmations = 4
+ContractTransmitterTransmitTimeout = '10s'
+DatabaseTimeout = '10s'
+DeltaCOverride = '168h0m0s'
+DeltaCJitterOverride = '1h0m0s'
+ObservationGracePeriod = '1s'
+
+[OCR2]
+[OCR2.Automation]
+GasLimit = 5400000
+
+[Workflow]
+GasLimitDefault = 400000
+```
+
+</p></details>
+
 <details><summary>Gnosis Chiado (10200)</summary><p>
 
 ```toml