Add DiamondHandsHook hook on ethereum

[hooklist-generator]

Summary

Anti-dump hook for a single DMND/WETH pool that charges 0% on buys and a dynamic 0.5–10% fee on sells, scaling with 1h rolling sell pressure via integral pricing. Captured fees are split 50/30/20 between a MerkleDistributor jackpot for DMND holders, WETH→DMND buyback-and-burn, and direct LP donations via poolManager.donate().

Flags

Flag	Value
beforeInitialize	false
afterInitialize	true
beforeAddLiquidity	false
afterAddLiquidity	false
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	none

Warnings

• Submitter-proposed description rejected: exceeds 500 character limit and includes an unverifiable external URL. Using AI-generated description.

Closes #649

[vercel]

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jun 11, 2026 4:46pm

[github-actions]

Review: hooks/ethereum/0x1df8e3ce04a62922506e4ba303e1338583155044.json

Address Bitmask

Address suffix 0x5044 → lowest 14 bits 0001 0000 0100 0100:

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

All flags correct.

Properties

• dynamicFee: false ✓ — No updateDynamicLPFee() or lpFeeOverride in beforeSwap (the hook has no beforeSwap). The variable sell fee (0.5–10%) is implemented as a hook fee captured via afterSwapReturnsDelta using the BaseHookFee pattern, not the v4 LP dynamic fee mechanism.
• upgradeable: false ✓ — No proxy, delegatecall, selfdestruct, or mutable implementation storage. source_meta.json confirms "proxy": false.
• requiresCustomSwapData: false ✓ — hookData is passed through but never decoded or required. Swaps work correctly with empty hookData.
• vanillaSwap: false ✓ — afterSwapReturnsDelta: true; the hook captures a fee delta from the swapper on sells. Swap behavior is materially different from a vanilla pool for sells.
• swapAccess: "none" ✓ — No access control in _afterSwap (hook has no beforeSwap). Anyone may swap freely.

Metadata

• name "DiamondHandsHook" ✓ — Matches contractName from Etherscan and the NatSpec @title DiamondHandsHook in source.
• verifiedSource: true ✓ — Confirmed by source_meta.json ("verified": true).
• chainId: 1 ✓ — Ethereum mainnet.
• description ✓ — Accurately describes the on-chain logic: 0% buy hook fee (BUY_FEE = 0), dynamic 0.5–10% sell fee (SELL_FEE_BASE = 5_000, SELL_FEE_MAX = 100_000), 1-hour rolling window (PRESSURE_WINDOW = 1 hours), integral pricing (verified in _sellFeeFor), 50/30/20 split (SPLIT_JACKPOT/BUYBACK/LOYALTY), MerkleDistributor jackpot, WETH→DMND buyback-and-burn, and LP donations via poolManager.donate(). No promotional or audit language.

All fields verified. No issues found.

[marktoda]

Bot review verified. DiamondHandsHook on ethereum (0x1df8...5044). Bitmask 0x1044 → afterInitialize, afterSwap, afterSwapReturnsDelta. Description length 327/500 prechecked. LGTM.