Add EulerSwap hook on ethereum

[hooklist-generator]

Summary

A custom-curve AMM hook that routes swaps entirely through Euler lending vaults. In beforeSwap, it computes a quote against a configurable bonding curve, takes input tokens into an Euler vault, withdraws output tokens from another vault, and returns a BeforeSwapDelta to handle all accounting—bypassing Uniswap concentrated liquidity entirely. Standard LP positions are blocked.

Flags

Flag	Value
beforeInitialize	true
afterInitialize	false
beforeAddLiquidity	true
afterAddLiquidity	false
beforeRemoveLiquidity	false
afterRemoveLiquidity	false
beforeSwap	true
afterSwap	false
beforeDonate	true
afterDonate	false
beforeSwapReturnsDelta	true
afterSwapReturnsDelta	false
afterAddLiquidityReturnsDelta	false
afterRemoveLiquidityReturnsDelta	false

Properties

Property	Value
dynamicFee	false
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

• Submitter did not provide a name. Using AI-derived "EulerSwap".
• Submitter did not provide a description. Using AI-generated description.

Closes #7129

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Project	Deployment	Actions	Updated
hooklist	Ready	Preview	Sep 16, 2026 9:17pm UTC

[github-actions]

Review: hooks/ethereum/0x5ecf6c62d1368ea8de372296951d3f5ed1a9a8a8.json

Flag Verification

Address 0x5ecf6c62d1368ea8de372296951d3f5ed1a9a8a8 — lowest 14 bits: 0xa8a8 & 0x3FFF = 0x28A8 = 10 1000 1010 1000 binary.

All 14 flags match the getHookPermissions() return in src_UniswapHook.sol exactly:

• beforeInitialize: true ✓
• afterInitialize: false ✓
• beforeAddLiquidity: true ✓
• afterAddLiquidity: false ✓
• beforeRemoveLiquidity: false ✓
• afterRemoveLiquidity: false ✓
• beforeSwap: true ✓
• afterSwap: false ✓
• beforeDonate: true ✓
• afterDonate: false ✓
• beforeSwapReturnsDelta: true ✓
• afterSwapReturnsDelta: false ✓
• afterAddLiquidityReturnsDelta: false ✓
• afterRemoveLiquidityReturnsDelta: false ✓

Properties Verification

• dynamicFee: false ✓ — _beforeSwap returns a hardcoded fee of 0 as the third return value. No calls to updateDynamicLPFee() anywhere in hook code.

• upgradeable: false ✓ — The source comment notes instances are delegatecall proxies, but the implementation address is fixed at deployment (immutable). There is no admin-configurable implementation storage or upgrade mechanism in the source. This is a factory-clone pattern, not an upgradeable proxy.

• requiresCustomSwapData: false ✓ — In _beforeSwap, the bytes calldata parameter is unnamed and completely unused. Swaps work correctly without any hookData.

• vanillaSwap: false ✓ — Correctly false: beforeSwapReturnsDelta is true and the hook fully bypasses Uniswap concentrated liquidity by computing its own AMM curve, depositing input into Euler vaults, and withdrawing output from Euler vaults.

• swapAccess: "none" ✓ — _beforeSwap contains no access control on the caller. The only gate is the nonReentrantHook reentrancy guard, which is not identity-based.

Metadata Verification

• verifiedSource: true ✓ — Confirmed by source_meta.json ("verified": true).
• chainId: 1 ✓ — Ethereum mainnet.
• name: "EulerSwap" ✓ — Matches contractName from Etherscan ("contractName": "EulerSwap").
• description ✓ — Accurately describes the custom-curve AMM routing through Euler lending vaults. The _beforeSwap logic confirms: it computes a quote via QuoteLib, takes input tokens to an Euler vault (FundsLib.depositAssets), withdraws output from another vault (FundsLib.withdrawAssets), and returns a BeforeSwapDelta. beforeAddLiquidity reverts to block standard LP positions. No promotional or audit language present.

All checks pass.

[Ponx]

Bot review verified; bitmask/flags/properties check out. LGTM.