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brotherlymite
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kyzia551
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feat: pendle discount rate injector (aave-dao#47)
* feat: add discountRate injector * feat: EdgeRiskStewardDiscountRate * chore: add deploy script * test: discountRate injector * fix: discount rate in 1e18 format * fix: use structs for deploy inputs * chore: fix other deploy scripts too * Revert "chore: fix other deploy scripts too" This reverts commit 8905ed4. * Update tests/AaveStewardInjectorDiscountRate.t.sol Co-authored-by: Andrey <[email protected]> * chore: rename better --------- Co-authored-by: Andrey <[email protected]>
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‎scripts/deploy/DeployDiscountRateInjector.s.sol‎

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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import 'solidity-utils/contracts/utils/ScriptUtils.sol';
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import {MiscEthereum} from 'aave-address-book/MiscEthereum.sol';
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import {AaveV3Ethereum, AaveV3EthereumAssets} from 'aave-address-book/AaveV3Ethereum.sol';
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import {GovernanceV3Ethereum} from 'aave-address-book/GovernanceV3Ethereum.sol';
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import {ICreate3Factory} from 'solidity-utils/contracts/create3/interfaces/ICreate3Factory.sol';
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import {EdgeRiskStewardDiscountRate, IRiskSteward} from '../../src/contracts/EdgeRiskStewardDiscountRate.sol';
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import {AaveStewardInjectorDiscountRate} from '../../src/contracts/AaveStewardInjectorDiscountRate.sol';
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library DeployStewardContracts {
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struct DeployStewardInput {
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address pool;
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address configEngine;
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address riskCouncil;
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address owner;
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}
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struct DeployInjectorInput {
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address create3Factory;
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bytes32 salt;
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address riskSteward;
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address aaveOracle;
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address edgeRiskOracle;
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address owner;
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address guardian;
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address[] whitelistedMarkets;
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}
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function _deployRiskStewards(
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DeployStewardInput memory input
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) internal returns (address) {
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address riskSteward = address(
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new EdgeRiskStewardDiscountRate(input.pool, input.configEngine, input.riskCouncil, input.owner, _getRiskConfig())
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);
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return riskSteward;
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}
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function _deployDiscountRateStewardInjector(
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DeployInjectorInput memory input
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) internal returns (address) {
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address stewardInjector = ICreate3Factory(input.create3Factory).create(
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input.salt,
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abi.encodePacked(
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type(AaveStewardInjectorDiscountRate).creationCode,
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abi.encode(input.aaveOracle, input.edgeRiskOracle, input.riskSteward, input.whitelistedMarkets, input.owner, input.guardian)
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)
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);
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return stewardInjector;
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}
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function _getRiskConfig() internal pure returns (IRiskSteward.Config memory) {
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IRiskSteward.Config memory config;
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config.priceCapConfig.discountRatePendle = IRiskSteward.RiskParamConfig({
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minDelay: 2 days,
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maxPercentChange: 0.01e18 // 1%
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});
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return config;
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}
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}
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// make deploy-ledger contract=scripts/deploy/DeployDiscountRateInjector.s.sol:DeployEthereum chain=mainnet
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contract DeployEthereum is EthereumScript {
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address constant GUARDIAN = 0xff37939808EcF199A2D599ef91D699Fb13dab7F7;
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address constant EDGE_RISK_ORACLE = 0x7ABB46C690C52E919687D19ebF89C81A6136C1F2;
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function run() external {
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vm.startBroadcast();
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bytes32 salt = 'DiscountRateStewardInjector';
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address predictedStewardsInjector = ICreate3Factory(MiscEthereum.CREATE_3_FACTORY)
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.predictAddress(msg.sender, salt);
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address riskSteward = DeployStewardContracts._deployRiskStewards(
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DeployStewardContracts.DeployStewardInput({
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pool: address(AaveV3Ethereum.POOL),
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configEngine: AaveV3Ethereum.CONFIG_ENGINE,
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riskCouncil: predictedStewardsInjector,
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owner: GovernanceV3Ethereum.EXECUTOR_LVL_1
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})
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);
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address[] memory whitelistedPendleAssets = new address[](3);
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whitelistedPendleAssets[0] = AaveV3EthereumAssets.PT_sUSDE_31JUL2025_UNDERLYING;
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whitelistedPendleAssets[1] = AaveV3EthereumAssets.PT_USDe_31JUL2025_UNDERLYING;
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whitelistedPendleAssets[2] = AaveV3EthereumAssets.PT_eUSDE_14AUG2025_UNDERLYING;
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DeployStewardContracts._deployDiscountRateStewardInjector(
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DeployStewardContracts.DeployInjectorInput({
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create3Factory: MiscEthereum.CREATE_3_FACTORY,
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salt: salt,
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riskSteward: riskSteward,
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aaveOracle: address(AaveV3Ethereum.ORACLE),
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edgeRiskOracle: EDGE_RISK_ORACLE,
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owner: GovernanceV3Ethereum.EXECUTOR_LVL_1,
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guardian: GUARDIAN,
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whitelistedMarkets: whitelistedPendleAssets
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})
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);
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vm.stopBroadcast();
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}
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}

‎src/contracts/AaveStewardInjectorDiscountRate.sol‎

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// SPDX-License-Identifier: BUSL-1.1
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pragma solidity ^0.8.0;
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import {IRiskOracle} from './dependencies/IRiskOracle.sol';
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import {IRiskSteward} from '../interfaces/IRiskSteward.sol';
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import {AaveStewardInjectorBase} from './AaveStewardInjectorBase.sol';
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import {IAaveOracle} from 'aave-v3-origin/src/contracts/interfaces/IAaveOracle.sol';
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/**
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* @title AaveStewardInjectorDiscountRate
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* @author BGD Labs
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* @notice Aave chainlink automation-keeper-compatible contract to perform pendle discountRate update injection
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* on risk steward using the edge risk oracle.
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*/
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contract AaveStewardInjectorDiscountRate is AaveStewardInjectorBase {
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IAaveOracle public immutable AAVE_ORACLE;
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/**
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* @param aaveOracle address of the aave oracle of the instance.
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* @param riskOracle address of the edge risk oracle contract.
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* @param riskSteward address of the risk steward contract.
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* @param markets list of market addresses to allow.
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* @param owner address of the owner of the stewards injector.
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* @param guardian address of the guardian of the stewards injector.
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*/
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constructor(
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address aaveOracle,
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address riskOracle,
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address riskSteward,
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address[] memory markets,
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address owner,
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address guardian
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) AaveStewardInjectorBase(riskOracle, riskSteward, markets, owner, guardian) {
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AAVE_ORACLE = IAaveOracle(aaveOracle);
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}
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/// @inheritdoc AaveStewardInjectorBase
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function getUpdateTypes() public pure override returns (string[] memory updateTypes) {
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updateTypes = new string[](1);
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updateTypes[0] = 'PendleDiscountRateUpdate_Core';
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}
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/// @inheritdoc AaveStewardInjectorBase
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function _injectUpdate(IRiskOracle.RiskParameterUpdate memory riskParams) internal override {
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uint256 discountRate = abi.decode(
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abi.encodePacked(new bytes(32 - riskParams.newValue.length), riskParams.newValue),
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(uint256)
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);
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IRiskSteward.DiscountRatePendleUpdate[] memory discountRateUpdate = new IRiskSteward.DiscountRatePendleUpdate[](1);
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discountRateUpdate[0] = IRiskSteward.DiscountRatePendleUpdate({
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oracle: AAVE_ORACLE.getSourceOfAsset(riskParams.market), // reserve address is encoded in the market address
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discountRate: discountRate
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});
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IRiskSteward(RISK_STEWARD).updatePendleDiscountRates(discountRateUpdate);
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}
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}

‎src/contracts/EdgeRiskStewardDiscountRate.sol‎

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// SPDX-License-Identifier: BUSL-1.1
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pragma solidity ^0.8.0;
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import './RiskSteward.sol';
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/**
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* @title EdgeRiskStewardDiscountRate
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* @author BGD labs
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* @notice Contract to manage the PendleDiscountRate updates within configured bound on aave v3 pool.
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* To be triggered by the Aave Steward Injector Contract in a automated way via the Edge Risk Oracle.
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*/
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contract EdgeRiskStewardDiscountRate is RiskSteward {
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/**
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* @param pool the aave pool to be controlled by the steward
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* @param engine the config engine to be used by the steward
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* @param riskCouncil the safe address of the council being able to interact with the steward
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* @param owner the owner of the risk steward being able to set configs and mark items as restricted
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* @param riskConfig the risk configuration to setup for each individual risk param
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*/
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constructor(
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address pool,
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address engine,
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address riskCouncil,
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address owner,
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Config memory riskConfig
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) RiskSteward(pool, engine, riskCouncil, owner, riskConfig) {}
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/// @inheritdoc IRiskSteward
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function updateRates(
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IEngine.RateStrategyUpdate[] calldata
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) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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/// @inheritdoc IRiskSteward
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function updateCaps(IEngine.CapsUpdate[] calldata) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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/// @inheritdoc IRiskSteward
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function updateCollateralSide(
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IEngine.CollateralUpdate[] calldata
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) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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/// @inheritdoc IRiskSteward
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function updateEModeCategories(
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IEngine.EModeCategoryUpdate[] calldata
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) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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/// @inheritdoc IRiskSteward
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function updateLstPriceCaps(
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PriceCapLstUpdate[] calldata
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) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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/// @inheritdoc IRiskSteward
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function updateStablePriceCaps(
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PriceCapStableUpdate[] calldata
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) external virtual override onlyRiskCouncil {
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revert UpdateNotAllowed();
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}
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}

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