Add TaxHook hook on ethereum

[hooklist-generator]

Summary

Charges a fixed 3% (300 bps) tax on every ETH/TOKEN pool swap by taking the tax amount from the pool manager and forwarding it to a hardcoded treasury address. Tax is applied on buys (via beforeSwap delta) and sells (via afterSwap delta).

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	none

Warnings

• Submitter did not provide a name. Using AI-derived "TaxHook".
• Submitter did not provide a description. Using AI-generated description.
• Source comments explicitly describe architectural separation from the token contract to evade token scanner detection (gmgn), suggesting deliberate obfuscation of the 3% tax mechanism from users and scanners.

Closes #7119

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

[github-actions]

Review: hooks/ethereum/0xd110e745ae77eca2d1ef631b27e426eebaa9c0cc.json

Address Flags

Decoded lowest 14 bits of 0x...c0cc (0xC0CC = 1100 0000 1100 1100 binary):

Bit	Flag	Expected	Hook File
13	beforeInitialize	false	false ✓
12	afterInitialize	false	false ✓
11	beforeAddLiquidity	false	false ✓
10	afterAddLiquidity	false	false ✓
9	beforeRemoveLiquidity	false	false ✓
8	afterRemoveLiquidity	false	false ✓
7	beforeSwap	true	true ✓
6	afterSwap	true	true ✓
5	beforeDonate	false	false ✓
4	afterDonate	false	false ✓
3	beforeSwapReturnsDelta	true	true ✓
2	afterSwapReturnsDelta	true	true ✓
1	afterAddLiquidityReturnsDelta	false	false ✓
0	afterRemoveLiquidityReturnsDelta	false	false ✓

Also confirmed by getHookPermissions() in the verified source.

Properties

• dynamicFee: false — _beforeSwap returns 0 as the fee override slot and updateDynamicLPFee() is never called. ✓
• upgradeable: false — TAX_ADMIN is a constant, TOKEN is immutable, no proxy pattern, no delegatecall to a mutable address, no SELFDESTRUCT. ✓
• requiresCustomSwapData: false — hookData parameter is ignored in both callbacks. ✓
• vanillaSwap: false — beforeSwapReturnsDelta and afterSwapReturnsDelta are both true; the hook actively takes 3% from swap amounts. Correctly false. ✓
• swapAccess: "none" — No access control on swaps. Pools that don't match _isOurPool() (ETH/TOKEN) simply receive zero deltas; any caller may swap. ✓

Metadata

• name: "TaxHook" matches contractName from Etherscan source metadata. ✓
• chainId: 1 (ethereum mainnet) is correct. ✓
• verifiedSource: true confirmed by source_meta.json (verified: true, proxy: false). ✓
• description is factually accurate: the contract charges TAX_BPS = 300 (3% / 300 bps), uses poolManager.take() to extract ETH, forwards it to the hardcoded TAX_ADMIN constant address, applies the tax on ETH→TOKEN buys in _beforeSwap (via returned BeforeSwapDelta) and TOKEN→ETH sells in _afterSwap (via returned int128 delta). No audit/safety/marketing language present. ✓

All fields verified against on-chain source. No issues found.

[Ponx]

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