fix accounts len check

README.md

@@ -0,0 +1,249 @@
+# pump-parser
+
+Solana transaction parser focused on swap, liquidity, migration, platform, MEV, compute budget, and compact binary persistence workflows.
+
+The package works with a normalized `RawTx` representation, parses it into `Tx`, and emits one or more `Swap` records when a supported protocol action is found.
+
+## Features
+
+- Parse Solana RPC / Yellowstone transactions into local `RawTx`.
+- Extract swap and liquidity events into `Tx.Swaps`.
+- Preserve transaction metadata such as slot, block time, signer, fee, CU limit, CU consumed, token balances, platform fees, and MEV agent hints.
+- Encode/decode parsed transactions with the `PTXB` / `PTXS` binary formats.
+- Encode/decode raw transactions with the `PRTX` / `PRTS` / `PRBS` binary formats.
+- Stream decode large `PTXS` / `PRTS` payloads without loading every transaction into memory.
+- Merge `PTXS` batches while remapping address tables.
+
+## Supported Parsers
+
+Default parser initialization enables the hot-path Pump parsers only:
+
+- Pump
+- Pump AMM
+
+`EnableAllParsers()` additionally enables:
+
+- Meteora DLMM
+- Meteora Pools
+- Meteora DAMM v2
+- Meteora Bonding Curve
+- Orca Whirlpool
+- Raydium AMM v4
+- Raydium CLMM
+- Raydium CPMM
+- Raydium LaunchLab
+
+Use `InitParser(WithMeteoraDlmm())` when only Meteora DLMM should be added to the default parser set.
+
+## Installation
+
+```bash
+go get github.com/thloyi/pump-parser
+```
+
+This module currently declares `go 1.25.1` in `go.mod`.
+
+## Basic Usage
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+
+	pump_parser "github.com/thloyi/pump-parser"
+)
+
+func main() {
+	// Enable all known parser programs. Omit this call to keep the default
+	// Pump + Pump AMM parser set.
+	pump_parser.EnableAllParsers()
+
+	var rawTx *pump_parser.RawTx
+	// Fill rawTx from RPC, Yellowstone, JSON, or RawTx binary decoding.
+
+	tx, err := pump_parser.ParseRawTx(rawTx)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println("tx:", tx.GetTxHash())
+	for _, swap := range tx.Swaps {
+		fmt.Printf("%s %s base=%s quote=%s pool=%s user=%s\n",
+			swap.Program,
+			swap.Event,
+			swap.BaseAmount,
+			swap.QuoteAmount,
+			swap.Pool,
+			swap.User,
+		)
+	}
+}
+```
+
+## Swap Result
+
+`ParseRawTx` returns a `Tx`. A transaction can contain zero, one, or multiple parsed swap records in `Tx.Swaps`.
+
+Each `Swap` describes one protocol-level swap, liquidity, migration, or pool operation that the parser can normalize. The most important fields are:
+
+| Field | Meaning |
+| --- | --- |
+| `Program` | Normalized protocol name, such as `Pump`, `PumpAMM`, `MeteoraDLMM`, `RaydiumV4`, or `OrcaWhirPool`. |
+| `Event` | Normalized action, such as `buy`, `sell`, `add_liquidity`, `remove_liquidity`, `create`, `complete`, or `migrate`. |
+| `TxIndex` | Approximate execution order across outer and inner instructions. |
+| `InstrIdx` / `InnerIdx` | Outer instruction index and inner instruction index where the swap was found. |
+| `Pool` | Pool, pair, bonding curve, or market account for the parsed action. |
+| `BaseMint` / `QuoteMint` | Base and quote mint accounts after parser normalization. |
+| `BaseTokenProgram` / `QuoteTokenProgram` | Token program for each side, useful when Token-2022 is involved. |
+| `BaseMintDecimals` / `QuoteMintDecimals` | Decimals used to interpret raw token amounts. |
+| `User` | User or effective owner account for the action. If the parsed user is not on-curve, the parser may fall back to the transaction signer. |
+| `BaseAmount` / `QuoteAmount` | Actual parsed base-side and quote-side amounts, stored as `decimal.Decimal`. |
+| `BaseReserve` / `QuoteReserve` | Pool reserves when the protocol event or accounts expose them. |
+| `UserBaseBalance` / `UserQuoteBalance` | User token balances after the transaction when available from token balance metadata. |
+| `AfterSOLBalance` | User or signer SOL balance after the transaction. |
+| `EntryContract` | Known router / entry contract account when detected. |
+| `Mayhem` / `Cashback` | Protocol or platform-specific labels detected from the transaction path. |
+
+Swap amount and slippage fields normalize instruction intent:
+
+| Field | Meaning |
+| --- | --- |
+| `SwapMode` | `exact_in`, `exact_out`, or empty when unknown. |
+| `FixedAmount` / `FixedAmountSide` / `FixedMint` | The user-specified fixed side of the swap. For `exact_in`, this is the input amount. For `exact_out`, this is the target output amount. |
+| `LimitAmountType` | `min_out` for `exact_in`, `max_in` for `exact_out`, or empty when unknown. |
+| `LimitAmount` / `LimitAmountSide` / `LimitMint` | User-specified limit on the opposite side. |
+| `ActualLimitAmount` / `ActualLimitAmountSide` | Actual executed amount on the limited side. |
+| `SlippageBps` | Remaining headroom to the user's limit in basis points. See `SLIPPAGE_MAPPING.md` for protocol-specific derivation rules. |
+
+Liquidity, migration, and DLMM-specific fields are populated only for protocols that expose them:
+
+| Field | Meaning |
+| --- | --- |
+| `Creator` | Creator account when exposed by pool or launch events. |
+| `MigrateToPool` / `MigrateTopProgram` | Destination pool and program for migration events. |
+| `LpMint` | LP token mint for liquidity operations when available. |
+| `ActiveBinId` / `StartBinId` / `EndBinId` | Meteora DLMM bin identifiers. |
+| `RemoveBp` | DLMM remove-liquidity basis points. |
+| `PositionAccount` | DLMM position account. |
+| `FeeAmount` / `LpFeeAmount` | Parsed fee amounts when the protocol exposes fee breakdowns. |
+| `FeeSide` / `FeeMint` / `FeeTokenProgram` / `FeeMintDecimals` | Fee side and mint metadata. |
+| `ConsumeUnit` | Per-swap compute unit value when available. |
+
+Amounts are normalized into decimals in parser output, but the exact scale depends on the source event and parser path. For persisted binary output, `tx_binary.go` defines the conversion rules and schema version.
+
+## Convert Transactions
+
+RPC transactions can be converted with `FromRpcTransactionWithMeta`:
+
+```go
+rawTx, err := pump_parser.FromRpcTransactionWithMeta(
+	txWithMeta,
+	blockTime,
+	slot,
+	indexWithinBlock,
+)
+```
+
+Yellowstone transactions can be converted with `ConvertYellowstoneGrpcTransactionToSolanaTransaction`:
+
+```go
+rawTx, err := pump_parser.ConvertYellowstoneGrpcTransactionToSolanaTransaction(
+	update,
+	createdUnix,
+)
+```
+
+Both conversion paths accept optional `RawTxConvertOptions`:
+
+```go
+rawTx, err := pump_parser.FromRpcTransactionWithMeta(
+	txWithMeta,
+	blockTime,
+	slot,
+	indexWithinBlock,
+	pump_parser.RawTxConvertOptions{
+		ParseLogEvents: true,
+	},
+)
+```
+
+`ParseLogEvents` attaches decoded program log events to matching instructions. `IgnoreLogMessages` skips log-message retention.
+
+## Binary Formats
+
+Parsed transaction binary:
+
+- `EncodeTxBinary` / `DecodeTxBinary` for one parsed `Tx`.
+- `EncodeTxsBinary` / `DecodeTxsBinary` for a batch of parsed `Tx`.
+- `DecodeTxsBinaryReader` for streaming `PTXS` reads.
+- `MergeTxsBinaryBytes` and `MergeTxsBinarySourcesToWriter` for merging `PTXS` batches.
+
+Raw transaction binary:
+
+- `EncodeRawTxBinary` / `DecodeRawTxBinary` for one `RawTx`.
+- `EncodeRawTxsBinary` / `DecodeRawTxsBinary` for a batch of `RawTx`.
+- `EncodeRawTxBlocksBinary` / `DecodeRawTxBlocksBinary` for grouped block data.
+- `DecodeRawTxsBinaryReader` for streaming `PRTS` reads.
+
+Format magic values:
+
+- `PTXB`: one parsed `Tx`.
+- `PTXS`: parsed `Tx` batch.
+- `PRTX`: one raw `RawTx`.
+- `PRTS`: raw `RawTx` batch.
+- `PRBS`: raw block-grouped `RawTx` batch.
+
+When adding or renaming transaction-facing enum values, update `tx_binary.go` enum tables by appending new values only. Reordering existing values changes persisted numeric IDs.
+
+## Commands
+
+Parse a live transaction by signature:
+
+```bash
+TX_HASH=<signature> go run ./cmd/rpc_parse
+```
+
+Collect Yellowstone transactions into a `.prbs` raw-block binary file:
+
+```bash
+YELLOWSTONE_X_TOKEN=<token> go run ./cmd/collect_yellowstone_rawtx_binary \
+  -endpoint ams.rpc.orbitflare.com:10000 \
+  -duration 5m \
+  -output testdata/rawtx-binary/sample.prbs
+```
+
+Measure parsed `Tx` binary size from a `getBlock` JSON payload:
+
+```bash
+go run ./cmd/measure_tx_binary_block \
+  -file /path/to/block.json \
+  -slot 413539056 \
+  -swaps-only
+```
+
+Analyze raw transaction binary size distribution:
+
+```bash
+go run ./cmd/analyze_rawtx_binary_size \
+  -file testdata/rawtx-binary/sample.prbs
+```
+
+## Development
+
+Run the full test suite:
+
+```bash
+go test ./...
+```
+
+Useful focused checks:
+
+```bash
+go test -run 'TestTxBinary|TestRawTxBinary' .
+go test -run 'TestMetaoraPoolSwapEventFromLogsUsesMatchingInvocation|TestMetaoraPoolSwapInstructionOccurrenceIncludesInnerInstructions|TestAttachLogEventsToInstructions' .
+TX_HASH=<signature> go run ./cmd/rpc_parse
+```
+
+For parser regressions, reproduce with the exact transaction signature first, then add a targeted unit test or fixture around the corrected parser path.

chainlink.go

@@ -25,6 +25,9 @@ func chainLinkParser(tx *Tx, instruction Instruction, inners InnerInstructions,
 	}
 
 	decode := instruction.Data
+	if len(decode) < 4 {
+		return increaseOffset(offset), nil
+	}
 	discriminator := binary.LittleEndian.Uint32(decode[0:4])
 
 	switch discriminator {
@@ -55,6 +58,9 @@ func chainLinkSubmitParser(instruction Instruction, inners InnerInstructions, of
 	if storeInstruction.Accounts[0] >= len(tx.rawTx.accountList) || tx.rawTx.accountList[storeInstruction.Accounts[0]] != chainlinkSOLUSDFeedAccount {
 		return increaseOffset(offset), InstructionIgnoredError
 	}
+	if len(storeInstruction.Data) < 8 {
+		return increaseOffset(offset), InstructionIgnoredError
+	}
 	if !bytes.Equal(storeInstruction.Data[0:8], chainlinkSubmitDiscriminator[:]) {
 		return increaseOffset(offset), InstructionIgnoredError
 	}

codex.md

@@ -0,0 +1,21 @@
+# Codex Notes
+
+## Tx Binary enum synchronization
+
+When adding or renaming transaction-facing enum values, keep the binary format definitions in sync.
+
+This includes, but is not limited to:
+
+- tx events
+- programs
+- platforms
+- MEV agents
+- swap modes, amount sides, limit types, and fee sides
+
+Checklist:
+
+1. Add the public constant in the normal source location, such as `enum.go`.
+2. Add any address mapping in `consts.go` when the enum is account-derived, such as platform or MEV agent detection.
+3. Append the new value to the matching versioned enum list in `tx_binary.go` under `txBinaryEnumTables`.
+4. Do not reorder or insert into existing `tx_binary.go` enum lists unless the binary version is intentionally changed; append to preserve existing numeric IDs.
+5. Add or update tx-binary round-trip coverage so encoding and decoding the new enum value is exercised.

internal/example/cmd/main.go

@@ -25,7 +25,7 @@ func main() {
 	// laserstream-mainnet-slc.helius-rpc.com:80
 
 	ch := make(chan example.SubscriptionMessage, 1)
-	go example.RunLoopWithReConnect(context.Background(), "", "", parser.SolProgramPump, ch)
+	go example.RunLoopWithReConnect(context.Background(), "ams.rpc.orbitflare.com:10000", "ORBIT-EPUZGQ-177605-508881", parser.SolProgramPump, ch)
 	// var tokenTxs = make(map[string]*types.Tx)
 	// currentBlock := uint64(0)
 	for msg := range ch {

metaorapool.go

@@ -741,6 +741,9 @@ func metaoraPoolRemoveLiquidity(tx *Tx, instruction Instruction, innerInstructio
 }
 
 func metaoraPoolSwap(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), fmt.Errorf("not enough accounts for swap instruction")
+	}
 	swapOffset := offset
 	var args metaoraPoolSwapArgs
 	if err := agbinary.NewBorshDecoder(instruction.Data[8:]).Decode(&args); err != nil {

meteoradamm.go

@@ -83,7 +83,13 @@ type MetaoraDammInitializePoolEvent struct {
 }
 
 func meteoraDammV2InitializePoolParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
-	if len(instruction.Accounts) < 12 {
+	requiredAccounts := 12
+	if bytes.Equal(instruction.Data[:8], meteoraDammV2InitializePoolWithDynamicConfig[:]) {
+		requiredAccounts = 13
+	} else if bytes.Equal(instruction.Data[:8], meteoraDammV2InitializeCustomizablePoolDiscriminator[:]) {
+		requiredAccounts = 11
+	}
+	if len(instruction.Accounts) < requiredAccounts {
 		return nil, increaseOffset(offset), fmt.Errorf("invalid instruction accounts length")
 	}
 	var entryContract = tx.rawTx.accountList[tx.rawTx.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
@@ -439,7 +445,7 @@ func meteoraDammV2AddLiquidityParser(tx *Tx, instruction Instruction, innerInstr
 }
 
 func meteoraDammV2RemoveLiquidityParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
-	if len(instruction.Accounts) < 8 {
+	if len(instruction.Accounts) < 9 {
 		return nil, increaseOffset(offset), fmt.Errorf("invalid instruction accounts length")
 	}
 	tokenAMint := tx.rawTx.accountList[instruction.Accounts[7]]

pump.go

@@ -173,9 +173,17 @@ func CreateParser(tx *Tx, instr Instruction, innerInstructions InnerInstructions
 	}
 	userIndex := 0
 	if bytes.HasPrefix(instr.Data, pumpCreateV2Discriminator[:]) {
+		if len(instr.Accounts) < 6 {
+			return nil, increaseOffset(offset), InstructionIgnoredError
+		}
 		userIndex = instr.Accounts[5]
 	} else if bytes.HasPrefix(instr.Data, pumpCreateDiscriminator[:]) {
+		if len(instr.Accounts) < 8 {
+			return nil, increaseOffset(offset), InstructionIgnoredError
+		}
 		userIndex = instr.Accounts[7]
+	} else {
+		return nil, increaseOffset(offset), InstructionIgnoredError
 	}
 	userBase := getAccountBalanceAfterTx(result, userIndex)
 	userQuote, _ := GetSolAfterTx(result, userIndex)

pumpamm.go

@@ -182,6 +182,9 @@ func pumpAmmParser(tx *Tx, instruction Instruction, innerInstructions InnerInstr
 }
 
 func ammCreatePoolParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
+	if len(instruction.Accounts) < 15 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	result := tx.rawTx
 	var entryContract = result.accountList[result.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 	var err error
@@ -275,6 +278,9 @@ func pumpAmmSwapAmountInfoFromArgs(args PumpSwapArgs) (swapMode SwapMode, fixedA
 }
 
 func failedTxAmmBuyParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	if tx.Err == nil || tx.Err.UnKnown != "" {
 		return nil, increaseOffset(offset), fmt.Errorf("tx pump amm sell failed but error is nil, offset, %d, %d", offset[0], offset[1])
 	}
@@ -401,6 +407,9 @@ func failedTxAmmBuyParser(tx *Tx, instruction Instruction, innerInstructions Inn
 }
 
 func failedTxAmmSellParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	if tx.Err == nil || tx.Err.UnKnown != "" {
 		return nil, increaseOffset(offset), fmt.Errorf("tx pump amm sell failed but error is nil, offset, %d, %d", offset[0], offset[1])
 	}
@@ -525,6 +534,9 @@ func ammBuyParser(tx *Tx, instruction Instruction, innerInstructions InnerInstru
 	var entryContract = result.accountList[result.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 	var err error
 	var prefixLen = offset[1]
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	inners, err := getInnerInstructions(innerInstructions, prefixLen)
 	if err != nil {
 		return nil, increaseOffset(offset), fmt.Errorf("pumpamm create get inner instructions error: %v, offset: %d,  %d", err, offset[0], prefixLen)
@@ -662,6 +674,9 @@ func ammSellParser(tx *Tx, instruction Instruction, innerInstructions InnerInstr
 	result := tx.rawTx
 	var entryContract = result.accountList[result.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 	var err error
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	var prefixLen = offset[1]
 	inners, err := getInnerInstructions(innerInstructions, prefixLen)
 	if err != nil {
@@ -789,6 +804,9 @@ func depositParse(tx *Tx, instruction Instruction, innerInstructions InnerInstru
 	result := tx.rawTx
 	var entryContract = result.accountList[result.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 	var err error
+	if len(instruction.Accounts) < 11 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	var prefixLen = offset[1]
 	inners, err := getInnerInstructions(innerInstructions, prefixLen)
 	if err != nil {
@@ -887,6 +905,9 @@ func withdrawParse(tx *Tx, instruction Instruction, innerInstructions InnerInstr
 	result := tx.rawTx
 	var entryContract = result.accountList[result.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 	var err error
+	if len(instruction.Accounts) < 11 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	var prefixLen = offset[1]
 	inners, err := getInnerInstructions(innerInstructions, prefixLen)
 	if err != nil {

rawtx.go

@@ -3,6 +3,7 @@ package pump_parser
 import (
 	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
@@ -876,6 +877,9 @@ func ConvertYellowstoneGrpcTransactionToSolanaTransaction(y *pb.SubscribeUpdateT
 		//Version:          nil,
 	}
 	meta := y.Transaction.GetMeta()
+	if meta == nil {
+		return nil, errors.New("meta can not parser")
+	}
 	yTx := y.Transaction.Transaction
 
 	if meta.Err != nil && len(meta.Err.GetErr()) > 0 {

raydiumclmm.go

@@ -108,38 +108,14 @@ func raydiumClmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 	switch discriminator {
 	case raydiumClmmIncreaseLiquidityDiscriminator:
 		accountMin = 12
-		market = tx.rawTx.accountList[instruction.Accounts[2]]
-		vault0 = instruction.Accounts[9]
-		vault1 = instruction.Accounts[10]
 	case raydiumClmmIncreaseLiquidityV2Discriminator:
 		accountMin = 15
-		market = tx.rawTx.accountList[instruction.Accounts[2]]
-		vault0 = instruction.Accounts[9]
-		vault1 = instruction.Accounts[10]
-		//token0 = tx.rawTx.accountList[instruction.Accounts[13]]
-		//token1 = tx.rawTx.accountList[instruction.Accounts[14]]
 	case raydiumClmmOpenPositionDiscriminator:
 		accountMin = 19
-		market = tx.rawTx.accountList[instruction.Accounts[5]]
-		vault0 = instruction.Accounts[12]
-		vault1 = instruction.Accounts[13]
-		lpToken = tx.rawTx.accountList[instruction.Accounts[2]]
 	case raydiumClmmOpenPositionV2Discriminator:
 		accountMin = 22
-		market = tx.rawTx.accountList[instruction.Accounts[5]]
-		vault0 = instruction.Accounts[12]
-		vault1 = instruction.Accounts[13]
-		lpToken = tx.rawTx.accountList[instruction.Accounts[2]]
-		//token0 = tx.rawTx.accountList[instruction.Accounts[20]]
-		//token1 = tx.rawTx.accountList[instruction.Accounts[21]]
 	case raydiumClmmOpenPositionWithToken22NftDiscriminator:
 		accountMin = 20
-		market = tx.rawTx.accountList[instruction.Accounts[4]]
-		vault0 = instruction.Accounts[11]
-		vault1 = instruction.Accounts[12]
-		lpToken = tx.rawTx.accountList[instruction.Accounts[2]]
-		//token0 = tx.rawTx.accountList[instruction.Accounts[18]]
-		//token1 = tx.rawTx.accountList[instruction.Accounts[19]]
 	default:
 		return nil, increaseOffset(offset), fmt.Errorf("invalid discriminator")
 	}
@@ -148,6 +124,23 @@ func raydiumClmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		return nil, increaseOffset(offset), fmt.Errorf("not enough accounts for raydiumClmm add liquidity instruction, offset, %d, %d", offset[0], offset[1])
 	}
 
+	switch discriminator {
+	case raydiumClmmIncreaseLiquidityDiscriminator, raydiumClmmIncreaseLiquidityV2Discriminator:
+		market = tx.rawTx.accountList[instruction.Accounts[2]]
+		vault0 = instruction.Accounts[9]
+		vault1 = instruction.Accounts[10]
+	case raydiumClmmOpenPositionDiscriminator, raydiumClmmOpenPositionV2Discriminator:
+		market = tx.rawTx.accountList[instruction.Accounts[5]]
+		vault0 = instruction.Accounts[12]
+		vault1 = instruction.Accounts[13]
+		lpToken = tx.rawTx.accountList[instruction.Accounts[2]]
+	case raydiumClmmOpenPositionWithToken22NftDiscriminator:
+		market = tx.rawTx.accountList[instruction.Accounts[4]]
+		vault0 = instruction.Accounts[11]
+		vault1 = instruction.Accounts[12]
+		lpToken = tx.rawTx.accountList[instruction.Accounts[2]]
+	}
+
 	baseTokenBalance, err := getTokenBalanceAfterTx(tx.rawTx, vault0)
 	if err != nil {
 		return nil, increaseOffset(offset), fmt.Errorf("failed to get token0 vault balance after tx: %v", err)
@@ -197,6 +190,8 @@ func raydiumClmmDecreaseLiquidityParser(tx *Tx, instruction Instruction, innerIn
 		accountMin = 14
 	} else if discriminator == raydiumClmmDecreaseLiquidityV2Discriminator {
 		accountMin = 16
+	} else {
+		return nil, increaseOffset(offset), fmt.Errorf("invalid discriminator")
 	}
 	if len(instruction.Accounts) < accountMin {
 		return nil, increaseOffset(offset), fmt.Errorf("not enough accounts for decrease liquidity instruction")
@@ -299,23 +294,21 @@ func raydiumClmmSwapParser(tx *Tx, instruction Instruction, innerInstructions In
 	}
 	if discriminator == raydiumClmmSwapDiscriminator {
 		accountMin = 9
-		pool = tx.rawTx.accountList[instruction.Accounts[2]]
-		userTokenInAccount = instruction.Accounts[3]
-		userTokenOutAccount = instruction.Accounts[4]
-		tokenInVault = instruction.Accounts[5]
-		tokenOutVault = instruction.Accounts[6]
 	} else if discriminator == raydiumClmmSwapV2Discriminator {
 		accountMin = 13
-		pool = tx.rawTx.accountList[instruction.Accounts[2]]
-		userTokenInAccount = instruction.Accounts[3]
-		userTokenOutAccount = instruction.Accounts[4]
-		tokenInVault = instruction.Accounts[5]
-		tokenOutVault = instruction.Accounts[6]
+	} else {
+		return nil, increaseOffset(offset), fmt.Errorf("invalid discriminator")
 	}
 	if len(instruction.Accounts) < accountMin {
 		return nil, increaseOffset(offset), fmt.Errorf("not enough accounts for swap instruction")
 	}
 
+	pool = tx.rawTx.accountList[instruction.Accounts[2]]
+	userTokenInAccount = instruction.Accounts[3]
+	userTokenOutAccount = instruction.Accounts[4]
+	tokenInVault = instruction.Accounts[5]
+	tokenOutVault = instruction.Accounts[6]
+
 	baseTokenBalance, err := getTokenBalanceAfterTx(tx.rawTx, tokenInVault)
 	if err != nil {
 		return nil, increaseOffset(offset), fmt.Errorf("failed to get tokenIn vault balance after tx: %w", err)

raydiumlaunchlab.go

@@ -373,6 +373,9 @@ type raydiumLaunchLabSwapArgs struct {
 }
 
 func raydiumLaunchLabSwapParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
+	if len(instruction.Accounts) < 13 {
+		return nil, increaseOffset(offset), InstructionIgnoredError
+	}
 	platformConfig := tx.rawTx.accountList[instruction.Accounts[3]]
 	var programName string
 	if platformConfig.Equals(bonkPlatformConfig) {

system.go

@@ -15,6 +15,9 @@ func systemParser(tx *Tx, instruction Instruction, _ InnerInstructions, offset [
 	}
 
 	decode := instruction.Data
+	if len(decode) < 4 {
+		return increaseOffset(offset), nil
+	}
 	discriminator := binary.LittleEndian.Uint32(decode[0:4])
 
 	switch discriminator {
@@ -29,6 +32,9 @@ func TransferParser(result *RawTx, instruction Instruction, offset [2]uint, tx *
 	if len(decodeData) < 8 {
 		return increaseOffset(offset), nil
 	}
+	if len(instruction.Accounts) < 2 || len(result.Transaction.Message.Instructions[offset[0]].Accounts) < 1 {
+		return increaseOffset(offset), InstructionIgnoredError
+	}
 	var lamports uint64 = binary.LittleEndian.Uint64(decodeData)
 
 	from := result.accountList[result.Transaction.Message.Instructions[offset[0]].Accounts[0]]

tx_binary.go

@@ -1191,7 +1191,7 @@ func (enc *txBinaryEncoder) writeTxBinaryBody(tx *TxBinary, enumTable *txBinaryE
 func (enc *txBinaryEncoder) writePlatformEntries(entries []PlatformBinary, enumTable *txBinaryEnumTable) error {
 	enc.writeUint32(uint32(len(entries)))
 	for i, entry := range entries {
-		enumID, err := enumTable.platforms.id(entry.Platform)
+		enumID, err := enumTable.platforms.idOrFallback(entry.Platform, PlatformNone)
 		if err != nil {
 			return fmt.Errorf("platform[%d]: %w", i, err)
 		}
@@ -1204,7 +1204,7 @@ func (enc *txBinaryEncoder) writePlatformEntries(entries []PlatformBinary, enumT
 func (enc *txBinaryEncoder) writeMevAgentEntries(entries []MevAgentBinary, enumTable *txBinaryEnumTable) error {
 	enc.writeUint32(uint32(len(entries)))
 	for i, entry := range entries {
-		enumID, err := enumTable.mevAgents.id(entry.MevAgent)
+		enumID, err := enumTable.mevAgents.idOrFallback(entry.MevAgent, MevAgentUnknown)
 		if err != nil {
 			return fmt.Errorf("mev_agent[%d]: %w", i, err)
 		}
@@ -1592,7 +1592,7 @@ func txBinaryReadPlatformEntries(dec txBinaryBodyReader, enumTable *txBinaryEnum
 		if err != nil {
 			return nil, err
 		}
-		platform, err := enumTable.platforms.value(enumID)
+		platform, err := enumTable.platforms.valueOrFallback(enumID, PlatformNone)
 		if err != nil {
 			return nil, fmt.Errorf("platform[%d]: %w", i, err)
 		}
@@ -1619,7 +1619,7 @@ func txBinaryReadMevAgentEntries(dec txBinaryBodyReader, enumTable *txBinaryEnum
 		if err != nil {
 			return nil, err
 		}
-		mevAgent, err := enumTable.mevAgents.value(enumID)
+		mevAgent, err := enumTable.mevAgents.valueOrFallback(enumID, MevAgentUnknown)
 		if err != nil {
 			return nil, fmt.Errorf("mev_agent[%d]: %w", i, err)
 		}
@@ -2144,6 +2144,7 @@ var txBinaryEnumTables = map[uint16]*txBinaryEnumTable{
 			MevAgentAllenhark,
 			MevAgentRaiden,
 			MevAgentZan,
+			MevAgentTunneling,
 		},
 	),
 }
@@ -2199,9 +2200,30 @@ func (set txBinaryEnumSet) id(value string) (uint16, error) {
 	return id, nil
 }
 
+func (set txBinaryEnumSet) idOrFallback(value string, fallback string) (uint16, error) {
+	if id, ok := set.ids[value]; ok {
+		return id, nil
+	}
+	id, ok := set.ids[fallback]
+	if !ok {
+		return 0, fmt.Errorf("unsupported %s fallback enum value %q for versioned tx binary", set.name, fallback)
+	}
+	return id, nil
+}
+
 func (set txBinaryEnumSet) value(id uint16) (string, error) {
 	if int(id) >= len(set.values) {
 		return "", fmt.Errorf("unknown %s enum id %d", set.name, id)
 	}
 	return set.values[id], nil
 }
+
+func (set txBinaryEnumSet) valueOrFallback(id uint16, fallback string) (string, error) {
+	if int(id) < len(set.values) {
+		return set.values[id], nil
+	}
+	if _, ok := set.ids[fallback]; !ok {
+		return "", fmt.Errorf("unsupported %s fallback enum value %q for versioned tx binary", set.name, fallback)
+	}
+	return fallback, nil
+}

tx_binary_test.go

@@ -45,6 +45,10 @@ func TestTxBinaryRoundTrip(t *testing.T) {
 				MevAgent:    MevAgentZan,
 				MevAgentFee: decimal.RequireFromString("0.040000000"),
 			},
+			MevAgentTunneling: {
+				MevAgent:    MevAgentTunneling,
+				MevAgentFee: decimal.RequireFromString("0.050000000"),
+			},
 		},
 		Swaps: []Swap{
 			{
@@ -153,6 +157,9 @@ func TestTxBinaryRoundTrip(t *testing.T) {
 	if !decoded.MevAgent[MevAgentZan].MevAgentFee.Equal(original.MevAgent[MevAgentZan].MevAgentFee) {
 		t.Fatalf("Zan MevAgent fee mismatch")
 	}
+	if !decoded.MevAgent[MevAgentTunneling].MevAgentFee.Equal(original.MevAgent[MevAgentTunneling].MevAgentFee) {
+		t.Fatalf("Tunneling MevAgent fee mismatch")
+	}
 	if len(decoded.Swaps) != 1 {
 		t.Fatalf("Swaps len = %d, want 1", len(decoded.Swaps))
 	}
@@ -232,6 +239,87 @@ func TestTxBinaryRejectsUnknownProgramEnum(t *testing.T) {
 	}
 }
 
+func TestTxBinaryLabelEnumsFallbackToUnknown(t *testing.T) {
+	original := &Tx{
+		Signer: solana.WrappedSol,
+		Platform: map[string]platformInfo{
+			"future-platform": {
+				Platform:    "future-platform",
+				PlatformFee: decimal.RequireFromString("0.010000000"),
+			},
+		},
+		MevAgent: map[string]mevInfo{
+			"future-mev-agent": {
+				MevAgent:    "future-mev-agent",
+				MevAgentFee: decimal.RequireFromString("0.020000000"),
+			},
+		},
+	}
+
+	encoded, err := EncodeTxBinary(original)
+	if err != nil {
+		t.Fatalf("EncodeTxBinary() error = %v", err)
+	}
+	decoded, err := DecodeTxBinary(encoded)
+	if err != nil {
+		t.Fatalf("DecodeTxBinary() error = %v", err)
+	}
+
+	if len(decoded.Platform) != 1 {
+		t.Fatalf("Platform len = %d, want 1", len(decoded.Platform))
+	}
+	if _, exists := decoded.Platform["future-platform"]; exists {
+		t.Fatalf("future platform was preserved, want fallback")
+	}
+	if !decoded.Platform[PlatformNone].PlatformFee.Equal(original.Platform["future-platform"].PlatformFee) {
+		t.Fatalf("PlatformNone fee = %s, want %s", decoded.Platform[PlatformNone].PlatformFee, original.Platform["future-platform"].PlatformFee)
+	}
+
+	if len(decoded.MevAgent) != 1 {
+		t.Fatalf("MevAgent len = %d, want 1", len(decoded.MevAgent))
+	}
+	if _, exists := decoded.MevAgent["future-mev-agent"]; exists {
+		t.Fatalf("future mev agent was preserved, want fallback")
+	}
+	if !decoded.MevAgent[MevAgentUnknown].MevAgentFee.Equal(original.MevAgent["future-mev-agent"].MevAgentFee) {
+		t.Fatalf("MevAgentUnknown fee = %s, want %s", decoded.MevAgent[MevAgentUnknown].MevAgentFee, original.MevAgent["future-mev-agent"].MevAgentFee)
+	}
+}
+
+func TestTxBinaryReadLabelEnumUnknownIDsFallback(t *testing.T) {
+	enumTable := txBinaryEnumTables[txBinaryEnumVersionV1]
+
+	platformFee := uint64(123)
+	platformEnc := txBinaryEncoder{}
+	platformEnc.writeUint32(1)
+	platformEnc.writeUint16(uint16(len(enumTable.platforms.values) + 10))
+	platformEnc.writeUint64(platformFee)
+
+	platformDec := txBinaryDecoder{reader: bytes.NewReader(platformEnc.bytes())}
+	platforms, err := txBinaryReadPlatformEntries(&platformDec, enumTable)
+	if err != nil {
+		t.Fatalf("txBinaryReadPlatformEntries() error = %v", err)
+	}
+	if len(platforms) != 1 || platforms[0].Platform != PlatformNone || platforms[0].PlatformFee != platformFee {
+		t.Fatalf("platform fallback = %+v, want %s/%d", platforms, PlatformNone, platformFee)
+	}
+
+	mevFee := uint64(456)
+	mevEnc := txBinaryEncoder{}
+	mevEnc.writeUint32(1)
+	mevEnc.writeUint16(uint16(len(enumTable.mevAgents.values) + 10))
+	mevEnc.writeUint64(mevFee)
+
+	mevDec := txBinaryDecoder{reader: bytes.NewReader(mevEnc.bytes())}
+	mevAgents, err := txBinaryReadMevAgentEntries(&mevDec, enumTable)
+	if err != nil {
+		t.Fatalf("txBinaryReadMevAgentEntries() error = %v", err)
+	}
+	if len(mevAgents) != 1 || mevAgents[0].MevAgent != MevAgentUnknown || mevAgents[0].MevAgentFee != mevFee {
+		t.Fatalf("mev agent fallback = %+v, want %s/%d", mevAgents, MevAgentUnknown, mevFee)
+	}
+}
+
 func TestTxBinaryAcceptsKnownEventEnums(t *testing.T) {
 	events := []string{
 		TxEventAddLP,