carbon-marginfi-v2

name

carbon-marginfi-v2

description

Carbon decoder reference for Marginfi v2 (lending) on Solana — program `MFv2hWf31Z9kbCa1snEPYctwafyhdvnV7FZnsebVacA`, crate `carbon-marginfi-v2-decoder` (24 instructions, 3 account types, 14 CPI events). Use when decoding, indexing, or analyzing this program with Carbon: looking up instruction args/discriminators/accounts, account struct fields, or CPI event schemas. Run the bundled `scripts/carbon.py` to extract details from the local cargo cache. Triggers on "Marginfi V2", "marginfi-v2", "carbon-marginfi-v2-decoder", "MFv2hWf31Z9kbCa1snEPYctwafyhdvnV7FZnsebVacA", "MarginfiV2Decoder", "Marginfi v2 (lending)", "LendingAccountBorrow", "LendingAccountCloseBalance", "LendingAccountDeposit", "LendingAccountEndFlashloan", "LendingAccountLiquidate", "LendingAccountRepay", "LendingAccountBorrowEvent", "LendingAccountDepositEvent", "LendingAccountLiquidateEvent", "LendingAccountRepayEvent", "Bank", "MarginfiAccount", "MarginfiGroup".

Marginfi V2

• Crate: carbon-marginfi-v2-decoder
• Program ID: MFv2hWf31Z9kbCa1snEPYctwafyhdvnV7FZnsebVacA
• Decoder struct: MarginfiV2Decoder
• Has CPI events: yes (in instructions/)

Instructions

• LendingAccountBorrow
• LendingAccountCloseBalance
• LendingAccountDeposit
• LendingAccountEndFlashloan
• LendingAccountLiquidate
• LendingAccountRepay
• LendingAccountSettleEmissions
• LendingAccountStartFlashloan
• LendingAccountWithdraw
• LendingAccountWithdrawEmissions
• LendingPoolAccrueBankInterest
• LendingPoolAddBank
• LendingPoolAddBankWithSeed
• LendingPoolCollectBankFees
• LendingPoolConfigureBank
• LendingPoolHandleBankruptcy
• LendingPoolSetupEmissions
• LendingPoolUpdateEmissionsParameters
• MarginfiAccountInitialize
• MarginfiGroupConfigure
• MarginfiGroupInitialize
• SetAccountFlag
• SetNewAccountAuthority
• UnsetAccountFlag

Account types

• Bank
• MarginfiAccount
• MarginfiGroup

CPI events

• LendingAccountBorrowEvent
• LendingAccountDepositEvent
• LendingAccountLiquidateEvent
• LendingAccountRepayEvent
• LendingAccountWithdrawEvent
• LendingPoolBankAccrueInterestEvent
• LendingPoolBankCollectFeesEvent
• LendingPoolBankConfigureEvent
• LendingPoolBankCreateEvent
• LendingPoolBankHandleBankruptcyEvent
• MarginfiAccountCreateEvent
• MarginfiAccountTransferAccountAuthorityEvent
• MarginfiGroupConfigureEvent
• MarginfiGroupCreateEvent

Shared types

• AccountEventHeader
• Balance
• BalanceDecreaseType
• BalanceIncreaseType
• BalanceSide
• BankConfig
• BankConfigCompact
• BankConfigOpt
• BankOperationalState
• BankVaultType
• GroupConfig
• GroupEventHeader
• InterestRateConfig
• InterestRateConfigCompact
• InterestRateConfigOpt
• LendingAccount
• LiquidationBalances
• OracleConfig
• OraclePriceType
• OracleSetup
• PriceBias
• RequirementType
• RiskRequirementType
• RiskTier
• WrappedI80F48

Pulling full details

The plugin's scripts/carbon.py extracts struct fields, discriminators, and account variants directly from the decoder crate in your cargo registry cache.

# locate the script (it lives next to this plugin)
CARBON=$(find ~ -path '*/carbon-solana/scripts/carbon.py' -print -quit)

# list everything available for this protocol
python3 "$CARBON" list marginfi-v2

# instruction details (args, discriminator, account variants)
python3 "$CARBON" ix marginfi-v2 <InstructionName>

# account struct fields (and size constant)
python3 "$CARBON" account marginfi-v2 <AccountName>

# CPI event fields + discriminator
python3 "$CARBON" event marginfi-v2 <EventName>

# shared type fields
python3 "$CARBON" type marginfi-v2 <TypeName>

# print the resolved cargo-cache path
python3 "$CARBON" path marginfi-v2

Requires ast-grep and the crate to be present in ~/.cargo/registry/src/ (any cargo project that depends on carbon-marginfi-v2-decoder will populate it after a cargo build or cargo fetch). If neither is available, run cargo install ast-grep and pull a project that uses Carbon.