Mimo Protocol
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MIMOAutoRebalance

The MIMOAutoRebalance action contract handle the super vault empty vault logic described in Automated Rebalance.

Process Flow

Write Methods

setAutomation(uint256 vaultId, AutomatedVault calldata autoParams)

Sets a vault automation parameters.
Requirements :
  • Caller must be the MIMOProxy owner the vault or the MIMOProxy owner
Param Name
Type
Description
vaultId
uint256
​
autoParams
struct
AutomatedVault struct containing all automation parameters
AutomatedVault
Param Name
Type
Description
isAutomated
bool
true if vault is automated false if not
toCollateral
address
Collateral to rebalance to
allowedVariation
uint256
The maximum allowed slippage on rebalancing swaps
targetRatio
uint256
Target ratio that must be reach upon each rebalance operation
triggerRatio
uint256
Minimum vault ratio that must be reached in order to perform a rebalance operation
mcrBuffer
uint256
Rebalancing vault MCR buffer padding
fixedFee
uint256
Fixed fee paid to the keeper
varFee
uint256
Variable fee paid to the keeper

rebalance(uint256 vaultId, IMIMOSwap.SwapData calldata swapData)

Performs a rebalance on a vault on behalf of a vault owner.
Requirements :
  • Contract must be unpaused
  • Vault must have been created through the user's MIMOProxy
  • Vault must be automated
  • Maximum daily operation must have not been reached
  • Rebalanced vault ratio must lower or equal then set triggerRatio
  • The change in vault value due to the rebalance operation must be lower or equal then the allowedVariation set by the owner
  • The final vault ratio must be greater or equal then the minRatio set by the owner
Param Name
Type
Description
vaultId
uint256
Id of the vault to rebalance
swapData
struct
SwapData struct containing aggregator swap parameters

executeOperation(address[] calldata assets, uint256[] calldata amounts, uint256[] calldata premiums, address initiator, bytes calldata params

AAVE Pool contract flash loan callback function.
Requirements :
  • Contract must be unpaused
  • Can only be called by the AAVE Pool contract
  • Flash loan initiator must be the MIMOProxy
Param Name
Type
Description
assets
address[]
Address array with one element corresponding to the address of the target vault asset
amounts
uint256[]
Uint array with one element corresponding to the amount of the target vault asset
premiums
uint256[]
Uint array with one element corresponding to the flashLoan fees
initiator
address
Initiator of the flashloan; can only be MIMOProxy owner
params
bytes
Bytes sent by this contract containing MIMOProxy owner, target vault id, SwapData struct

View Methods

getAmounts(uint256 vaultId, address toCollateral)

Returns the rebalance amounts for specific vault id.
Call Params
Name
Type
Description
vaultId
uint256
Id of the vault to rebalance
toCollateral
address
Collateral to rebalance to
Return Values
Name
Type
Description
rebalanceAmount
uint256
Amount to rebalance
mintAmount
uint256
Amount to mint on vault B
autoFee
uint256
Automation fee
rebalanceAmount calculation :
rebalanceValue=targetRatio∗(vaultDebt+fixedFee)−collateralValuetargetRatio−(mcrB+mcrBuffer)∗flashLoanfeemcrB+mcrBuffer−targetRatio∗variableFee−1rebalanceValue = \frac{targetRatio * (vaultDebt + fixedFee) - collateralValue}{\frac{targetRatio - (mcrB + mcrBuffer) * flashLoanfee}{mcrB + mcrBuffer} - targetRatio * variableFee - 1}
Where mcrB is the rebalancing vault (e.g. vault with the less volatile collateral) MCR.
The rebalance value is then converted to a rebalance amount using the core protocol PriceFeed contract.

mimoRebalance()

Returns the MIMORebalance action contract address.
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MIMORebalance
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MIMOManagedRebalance
Last modified 1mo ago