Add FWATokenHook hook on ethereum

[hooklist-generator]

Summary

ETH/FWAToken pool hook that charges a flat 1% fee on all swaps, routing proceeds to an owner-set fee wallet (buys: fee taken in FWAToken and swapped to ETH; sells: fee taken in ETH). Pool initialization is gated on the token's launching() flag; buy-side swaps revert for unauthorized callers until the owner enables external trading via externalBuysEnabled.

Flags

Flag	Value
beforeInitialize	true
afterInitialize	false
beforeAddLiquidity	false
afterAddLiquidity	true
beforeRemoveLiquidity	false
afterRemoveLiquidity	false
beforeSwap	false
afterSwap	true
beforeDonate	false
afterDonate	false
beforeSwapReturnsDelta	false
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 #1111

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 20, 2026 2:41pm

[github-actions]

Review: hooks/ethereum/0x2c67eba8a50af0db5fba55f725247a75cbda6444.json

Address Flags

Address 0x2c67eba8a50af0db5fba55f725247a75cbda6444 — last 2 bytes 0x6444 = 0b0110_0100_0100_0100.

Decoding bits 13–0:

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

getHookPermissions() in the verified source confirms identical values.

Properties

• dynamicFee: false — No updateDynamicLPFee() call. No beforeSwap flag. Fee is a fixed 1% (FEE_BIPS = 100 / TOTAL_BIPS = 10_000). ✓
• upgradeable: false — No proxy pattern, no delegatecall, no mutable implementation slot, no SELFDESTRUCT. source_meta.json confirms proxy: false. ✓
• requiresCustomSwapData: false — _afterSwap ignores hookData entirely; swaps execute correctly with empty calldata. ✓
• vanillaSwap: false — Correct. afterSwapReturnsDelta is true and the hook executes a nested pool swap inside _handleBuy (poolManager.swap(...) in _swapTokenToEth), which modifies how the swap executes. ✓
• swapAccess: "governance" — Buy-side access control in _afterSwap gates on externalBuysEnabled, a boolean toggled by the owner via setExternalBuysEnabled(). This is governance gating. ✓

Metadata

• chainId: 1 — Matches ethereum in chains.json. ✓
• name: "FWATokenHook" — Matches ContractName from Etherscan (source_meta.json) and the NatSpec @title in source. No promotional/audit language. ✓
• verifiedSource: true — source_meta.json confirms verified: true. ✓
• description — Accurately reflects the source: flat 1% fee in both directions, buy fees taken in FWAToken and swapped to ETH, sell fees taken in ETH, pool init gated on launching(), buy-side revert via ExternalBuysDisabled until owner enables external trading. All claims substantiated by the Solidity logic. ✓

Verdict

All flags, properties, and metadata are correct and consistent with the on-chain verified source.

[marktoda]

Bot review verified. FWATokenHook (ethereum). Flags: beforeInitialize, afterAddLiquidity, afterSwap, afterSwapReturnsDelta. LGTM.