SfrxETH onboarding - Needs CAPO feed

src/20240321_AaveV3Ethereum_SfrxETHListing/AaveV3Ethereum_SfrxETHListing_20240321.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {AaveV3Ethereum, AaveV3EthereumEModes} from 'aave-address-book/AaveV3Ethereum.sol';
+import {AaveV3PayloadEthereum} from 'aave-helpers/v3-config-engine/AaveV3PayloadEthereum.sol';
+import {EngineFlags} from 'aave-helpers/v3-config-engine/EngineFlags.sol';
+import {IAaveV3ConfigEngine} from 'aave-helpers/v3-config-engine/IAaveV3ConfigEngine.sol';
+import {IV3RateStrategyFactory} from 'aave-helpers/v3-config-engine/IV3RateStrategyFactory.sol';
+import {IERC20} from 'solidity-utils/contracts/oz-common/interfaces/IERC20.sol';
+import {SafeERC20} from 'solidity-utils/contracts/oz-common/SafeERC20.sol';
+
+/**
+ * @title sfrxETH Onboarding
+ * @author Aave Chan Initiative
+ * - Snapshot: https://snapshot.org/#/aave.eth/proposal/0x7b5eb16470a0246d8515fc551962740735c7db93bf7c39810e7d3126c04e49c3
+ * - Discussion: https://governance.aave.com/t/arfc-onboarding-sfrxeth-to-aave-v3-ethereum/15673
+ */
+contract AaveV3Ethereum_SfrxETHListing_20240321 is AaveV3PayloadEthereum {
+  using SafeERC20 for IERC20;
+
+  address public constant sfrxETH = 0xac3E018457B222d93114458476f3E3416Abbe38F;
+  uint256 public constant sfrxETH_SEED_AMOUNT = 1e16;
+
+  function _postExecute() internal override {
+    IERC20(sfrxETH).forceApprove(address(AaveV3Ethereum.POOL), sfrxETH_SEED_AMOUNT);
+    AaveV3Ethereum.POOL.supply(sfrxETH, sfrxETH_SEED_AMOUNT, address(AaveV3Ethereum.COLLECTOR), 0);
+  }
+
+  function newListings() public pure override returns (IAaveV3ConfigEngine.Listing[] memory) {
+    IAaveV3ConfigEngine.Listing[] memory listings = new IAaveV3ConfigEngine.Listing[](1);
+
+    listings[0] = IAaveV3ConfigEngine.Listing({
+      asset: sfrxETH,
+      assetSymbol: 'sfrxETH',
+      priceFeed: 0x0000000000000000000000000000000000000000,
+      eModeCategory: AaveV3EthereumEModes.ETH_CORRELATED,
+      enabledToBorrow: EngineFlags.ENABLED,
+      stableRateModeEnabled: EngineFlags.DISABLED,
+      borrowableInIsolation: EngineFlags.DISABLED,
+      withSiloedBorrowing: EngineFlags.DISABLED,
+      flashloanable: EngineFlags.ENABLED,
+      ltv: 74_50,
+      liqThreshold: 77_00,
+      liqBonus: 5_00,
+      reserveFactor: 15_00,
+      supplyCap: 55_000,
+      borrowCap: 5_500,
+      debtCeiling: 0,
+      liqProtocolFee: 10_00,
+      rateStrategyParams: IV3RateStrategyFactory.RateStrategyParams({
+        optimalUsageRatio: _bpsToRay(45_00),
+        baseVariableBorrowRate: _bpsToRay(0),
+        variableRateSlope1: _bpsToRay(7_00),
+        variableRateSlope2: _bpsToRay(300_00),
+        stableRateSlope1: _bpsToRay(0),
+        stableRateSlope2: _bpsToRay(0),
+        baseStableRateOffset: _bpsToRay(0),
+        stableRateExcessOffset: _bpsToRay(0),
+        optimalStableToTotalDebtRatio: _bpsToRay(0)
+      })
+    });
+
+    return listings;
+  }
+}

src/20240321_AaveV3Ethereum_SfrxETHListing/AaveV3Ethereum_SfrxETHListing_20240321.t.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {GovV3Helpers} from 'aave-helpers/GovV3Helpers.sol';
+import {AaveV3Ethereum} from 'aave-address-book/AaveV3Ethereum.sol';
+import {IERC20} from 'solidity-utils/contracts/oz-common/interfaces/IERC20.sol';
+
+import 'forge-std/Test.sol';
+import {ProtocolV3TestBase, ReserveConfig} from 'aave-helpers/ProtocolV3TestBase.sol';
+import {AaveV3Ethereum_SfrxETHListing_20240321} from './AaveV3Ethereum_SfrxETHListing_20240321.sol';
+
+/**
+ * @dev Test for AaveV3Ethereum_SfrxETHListing_20240321
+ * command: make test-contract filter=AaveV3Ethereum_SfrxETHListing_20240321
+ */
+contract AaveV3Ethereum_SfrxETHListing_20240321_Test is ProtocolV3TestBase {
+  AaveV3Ethereum_SfrxETHListing_20240321 internal proposal;
+
+  function setUp() public {
+    vm.createSelectFork(vm.rpcUrl('mainnet'), 19479117);
+    proposal = new AaveV3Ethereum_SfrxETHListing_20240321();
+  }
+
+  /**
+   * @dev executes the generic test suite including e2e and config snapshots
+   */
+  function test_defaultProposalExecution() public {
+    defaultTest('AaveV3Ethereum_SfrxETHListing_20240321', AaveV3Ethereum.POOL, address(proposal));
+  }
+
+  function test_collectorHassfrxETHFunds() public {
+    GovV3Helpers.executePayload(vm, address(proposal));
+    (address aTokenAddress, , ) = AaveV3Ethereum
+      .AAVE_PROTOCOL_DATA_PROVIDER
+      .getReserveTokensAddresses(proposal.sfrxETH());
+    assertGe(IERC20(aTokenAddress).balanceOf(address(AaveV3Ethereum.COLLECTOR)), 10 ** 16);
+  }
+}

src/20240321_AaveV3Ethereum_SfrxETHListing/SfrxETHListing.md

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+---
+title: "sfrxETH Onboarding"
+author: "Aave Chan Initiative"
+discussions: "https://governance.aave.com/t/arfc-onboarding-sfrxeth-to-aave-v3-ethereum/15673"
+snapshot: "https://snapshot.org/#/aave.eth/proposal/0x7b5eb16470a0246d8515fc551962740735c7db93bf7c39810e7d3126c04e49c3"
+---
+
+## Simple Summary
+
+This ARFC proposes the addition of sfrxETH from Frax to Aave V3 Ethereum to enhance LST liquidity and asset diversity.
+
+## Motivation
+
+sFrxETH is the Staked version of FrxETH from the Frax Ecosystem. Users can freely mint frxETH in exchange for ETH deposits.
+
+The Aave-Chan Initiative supports LST diversity in Aave V3 as shown with our historical support of cbETH, rETH, and, parallel to this proposal, our support for ETHx.
+
+This proposal is a reboot of [ARC Proposal: Onboarding sfrxETH from Frax Protocol to Aave V3 Ethereum Market 10 ](https://governance.aave.com/t/arc-proposal-onboarding-sfrxeth-from-frax-protocol-to-aave-v3-ethereum-market/11510) from January. More details for sFrxETH can be found in the first proposal.
+
+## Specification
+
+The table below illustrates the configured risk parameters for [sfrxETH](https://etherscan.io/token/0xac3e018457b222d93114458476f3e3416abbe38f)
+
+| Parameter                          |                                      Value |
+| ---------------------------------- | -----------------------------------------: |
+| Isolation Mode                     |                                       true |
+| Borrowable                         |                                    ENABLED |
+| Collateral Enabled                 |                                       true |
+| Supply Cap (sfrxETH)               |                                     55,000 |
+| Borrow Cap (sfrxETH)               |                                      5,500 |
+| Debt Ceiling                       |                                      USD 0 |
+| LTV                                |                                     74.5 % |
+| LT                                 |                                       77 % |
+| Liquidation Bonus                  |                                        5 % |
+| Liquidation Protocol Fee           |                                       10 % |
+| Reserve Factor                     |                                       15 % |
+| Base Variable Borrow Rate          |                                        0 % |
+| Variable Slope 1                   |                                        7 % |
+| Variable Slope 2                   |                                      300 % |
+| Uoptimal                           |                                       45 % |
+| Stable Borrowing                   |                                   DISABLED |
+| Stable Slope1                      |                                        0 % |
+| Stable Slope2                      |                                        0 % |
+| Base Stable Rate Offset            |                                        0 % |
+| Stable Rate Excess Offset          |                                        0 % |
+| Optimal Stable To Total Debt Ratio |                                        0 % |
+| Flashloanable                      |                                    ENABLED |
+| Siloed Borrowing                   |                                   DISABLED |
+| Borrowable in Isolation            |                                   DISABLED |
+| Oracle                             | 0x0000000000000000000000000000000000000000 |
+
+## References
+
+- Implementation: [AaveV3Ethereum](https://github.com/bgd-labs/aave-proposals-v3/blob/main/src/20240321_AaveV3Ethereum_SfrxETHListing/AaveV3Ethereum_SfrxETHListing_20240321.sol)
+- Tests: [AaveV3Ethereum](https://github.com/bgd-labs/aave-proposals-v3/blob/main/src/20240321_AaveV3Ethereum_SfrxETHListing/AaveV3Ethereum_SfrxETHListing_20240321.t.sol)
+- [Snapshot](https://snapshot.org/#/aave.eth/proposal/0x7b5eb16470a0246d8515fc551962740735c7db93bf7c39810e7d3126c04e49c3)
+- [Discussion](https://governance.aave.com/t/arfc-onboarding-sfrxeth-to-aave-v3-ethereum/15673)
+
+## Copyright
+
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).

src/20240321_AaveV3Ethereum_SfrxETHListing/SfrxETHListing_20240321.s.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {GovV3Helpers, IPayloadsControllerCore, PayloadsControllerUtils} from 'aave-helpers/GovV3Helpers.sol';
+import {EthereumScript} from 'aave-helpers/ScriptUtils.sol';
+import {AaveV3Ethereum_SfrxETHListing_20240321} from './AaveV3Ethereum_SfrxETHListing_20240321.sol';
+
+/**
+ * @dev Deploy Ethereum
+ * deploy-command: make deploy-ledger contract=src/20240321_AaveV3Ethereum_SfrxETHListing/SfrxETHListing_20240321.s.sol:DeployEthereum chain=mainnet
+ * verify-command: npx catapulta-verify -b broadcast/SfrxETHListing_20240321.s.sol/1/run-latest.json
+ */
+contract DeployEthereum is EthereumScript {
+  function run() external broadcast {
+    // deploy payloads
+    address payload0 = GovV3Helpers.deployDeterministic(
+      type(AaveV3Ethereum_SfrxETHListing_20240321).creationCode
+    );
+
+    // compose action
+    IPayloadsControllerCore.ExecutionAction[]
+      memory actions = new IPayloadsControllerCore.ExecutionAction[](1);
+    actions[0] = GovV3Helpers.buildAction(payload0);
+
+    // register action at payloadsController
+    GovV3Helpers.createPayload(actions);
+  }
+}
+
+/**
+ * @dev Create Proposal
+ * command: make deploy-ledger contract=src/20240321_AaveV3Ethereum_SfrxETHListing/SfrxETHListing_20240321.s.sol:CreateProposal chain=mainnet
+ */
+contract CreateProposal is EthereumScript {
+  function run() external {
+    // create payloads
+    PayloadsControllerUtils.Payload[] memory payloads = new PayloadsControllerUtils.Payload[](1);
+
+    // compose actions for validation
+    IPayloadsControllerCore.ExecutionAction[]
+      memory actionsEthereum = new IPayloadsControllerCore.ExecutionAction[](1);
+    actionsEthereum[0] = GovV3Helpers.buildAction(
+      type(AaveV3Ethereum_SfrxETHListing_20240321).creationCode
+    );
+    payloads[0] = GovV3Helpers.buildMainnetPayload(vm, actionsEthereum);
+
+    // create proposal
+    vm.startBroadcast();
+    GovV3Helpers.createProposal(
+      vm,
+      payloads,
+      GovV3Helpers.ipfsHashFile(vm, 'src/20240321_AaveV3Ethereum_SfrxETHListing/SfrxETHListing.md')
+    );
+  }
+}

src/20240321_AaveV3Ethereum_SfrxETHListing/config.ts

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+import {ConfigFile} from '../../generator/types';
+export const config: ConfigFile = {
+  rootOptions: {
+    configFile: 'src/20240321_AaveV3Ethereum_SfrxETHListing/config.ts',
+    force: true,
+    author: 'Aave Chan Initiative',
+    pools: ['AaveV3Ethereum'],
+    title: 'sfrxETH Listing',
+    shortName: 'SfrxETHListing',
+    date: '20240321',
+    discussion: 'https://governance.aave.com/t/arfc-onboarding-sfrxeth-to-aave-v3-ethereum/15673',
+    snapshot:
+      'https://snapshot.org/#/aave.eth/proposal/0x7b5eb16470a0246d8515fc551962740735c7db93bf7c39810e7d3126c04e49c3',
+  },
+  poolOptions: {
+    AaveV3Ethereum: {
+      configs: {
+        ASSET_LISTING: [
+          {
+            assetSymbol: 'sfrxETH',
+            decimals: 18,
+            priceFeed: '0x0000000000000000000000000000000000000000',
+            ltv: '74.5',
+            liqThreshold: '77',
+            liqBonus: '5',
+            debtCeiling: '0',
+            liqProtocolFee: '10',
+            enabledToBorrow: 'ENABLED',
+            flashloanable: 'ENABLED',
+            stableRateModeEnabled: 'DISABLED',
+            borrowableInIsolation: 'DISABLED',
+            withSiloedBorrowing: 'DISABLED',
+            reserveFactor: '15',
+            supplyCap: '55000',
+            borrowCap: '5500',
+            rateStrategyParams: {
+              optimalUtilizationRate: '45',
+              baseVariableBorrowRate: '0',
+              variableRateSlope1: '7',
+              variableRateSlope2: '300',
+              stableRateSlope1: '0',
+              stableRateSlope2: '0',
+              baseStableRateOffset: '0',
+              stableRateExcessOffset: '0',
+              optimalStableToTotalDebtRatio: '0',
+            },
+            eModeCategory: 'AaveV3EthereumEModes.ETH_CORRELATED',
+            asset: '0xac3E018457B222d93114458476f3E3416Abbe38F',
+          },
+        ],
+      },
+      cache: {blockNumber: 19479117},
+    },
+  },
+};