Add IdleHook hook on ethereum

[hooklist-generator]

Summary

Combined ERC-20 token and Uniswap v4 hook that captures a hardcoded 2% fee on the idle-token input side of each swap via beforeSwap return delta, depositing fees into a drip pool that continuously distributes rewards to token holders block by block with a velocity-adjusted release horizon (6–48 hours).

Flags

Flag	Value
beforeInitialize	false
afterInitialize	false
beforeAddLiquidity	true
afterAddLiquidity	false
beforeRemoveLiquidity	true
afterRemoveLiquidity	false
beforeSwap	true
afterSwap	true
beforeDonate	false
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 "IdleHook".
• Submitter did not provide a description. Using AI-generated description.

Closes #7142

[github-actions]

Review: hooks/ethereum/0xbb7a22aacc8ff273df294beb306d21a1e59b0ac8.json

Address Flags

Address suffix 0ac8 = 2760 = bits {11, 9, 7, 6, 3} set:

Flag	Expected	JSON
beforeAddLiquidity (bit 11)	true	true ✓
beforeRemoveLiquidity (bit 9)	true	true ✓
beforeSwap (bit 7)	true	true ✓
afterSwap (bit 6)	true	true ✓
beforeSwapReturnsDelta (bit 3)	true	true ✓
All others	false	false ✓

All 14 flags match the address bitmask.

Properties

• dynamicFee: false ✓ — FEE_BPS = 200 is hardcoded; no updateDynamicLPFee() call anywhere.
• upgradeable: false ✓ — No proxy pattern, no delegatecall to mutable address, no SELFDESTRUCT. source_meta.json confirms proxy: false.
• requiresCustomSwapData: false ✓ — _beforeSwap ignores the bytes calldata hookData entirely; swaps execute without it.
• vanillaSwap: false ✓ — beforeSwapReturnsDelta is true and the hook intercepts 2% of idle-token exact-input amounts via toBeforeSwapDelta(fee, 0), modifying swap execution.
• swapAccess: "none" ✓ — _beforeSwap only enforces pool binding (WrongPool revert), not caller-based access control. Any address may swap.

Metadata

• name "IdleHook" matches contractName from verified source. ✓
• chainId 1 matches chains.json for ethereum. ✓
• verifiedSource: true confirmed by source_meta.json. ✓
• description is factually accurate: the contract is simultaneously an ERC-20 and a v4 hook; it captures a hardcoded 2% fee (FEE_BPS=200) on exact-input swaps where idle is the specified (input) currency via beforeSwapReturnsDelta; fees go to dripPool via _depositFee; distribution is per-block via _drip() with a velocity-adjusted horizon between H_MIN=1800 blocks (≈6h) and H_MAX=14400 blocks (≈48h). No promotional, audit, or safety language. ✓

[Ponx]

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