Add LivoSwapHook (V2) hook on robinhood

[hooklist-generator]

Summary

Singleton fee hook for Livo-graduated ETH/token pools. Collects LP fees and post-graduation taxes on the ETH leg across all four swap directions, routing them to a treasury fee router and per-token receivers via ILivoToken.accrueFees(). Blocks swaps on non-graduated tokens. Fees are withheld via BeforeSwapDelta or AfterSwapDelta depending on which leg the ETH amount is known.

Flags

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

Properties

Property	Value
dynamicFee	false
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	governance

Warnings

• Submitter did not provide a description. Using AI-generated description.

Closes #1093

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 16, 2026 3:08pm

[github-actions]

Review: hooks/robinhood/0xdb1902bc975992828616b0224d9c5ff907e9c0cc.json

Address Flags

Decoded the lowest 14 bits of 0x...c0cc = 0xc0cc = 1100 0000 1100 1100:

Bit	Flag	Address bit	JSON
7	beforeSwap	1	true ✓
6	afterSwap	1	true ✓
3	beforeSwapReturnsDelta	1	true ✓
2	afterSwapReturnsDelta	1	true ✓
all others	—	0	false ✓

Matches getHookPermissions() exactly.

Source Code Verification

Contract: LivoSwapHook (NatSpec @title LivoSwapHook V2). Singleton, ownerless hook for Livo-graduated ETH/token pools.

dynamicFee: false — _beforeSwap returns 0 as the uint24 fee override; no updateDynamicLPFee() call anywhere. ✓

upgradeable: false — FEE_ROUTER and TREASURY are immutable. No proxy pattern, no delegatecall, no SELFDESTRUCT. NatSpec explicitly describes it as ownerless. ✓

requiresCustomSwapData: false — hookData (bytes calldata) is never decoded in either _beforeSwap or _afterSwap. ✓

vanillaSwap: false — Both beforeSwapReturnsDelta and afterSwapReturnsDelta are true, and the hook materially withholds fees from the swap via toBeforeSwapDelta and afterSwap int128 returns. ✓

swapAccess: "governance" — _beforeSwap calls ILivoToken(token).graduated() and reverts with NoSwapsBeforeGraduation() if false. This is a boolean flag set by the protocol admin via the graduation process — correctly classified as "governance". ✓

Metadata

• verifiedSource: true — confirmed by source_meta.json ("verified": true). ✓
• chainId: 4663 — matches chains.json for "robinhood". ✓
• name: "LivoSwapHook (V2)" — consistent with contract name LivoSwapHook and NatSpec @title LivoSwapHook V2. No promotional, audit, or endorsement language. ✓
• description — every claim is substantiated by the Solidity logic: singleton design, ETH-leg fee collection across all four swap directions (exact-input/output × buy/sell), fee routing via LivoLpFeeRouter.depositLpFees() and ILivoToken.accrueFees(), graduation gate (NoSwapsBeforeGraduation), and BeforeSwapDelta/AfterSwapDelta selection logic. ✓

All flags, properties, and metadata are correct.