Add Doppler hook on robinhood

[hooklist-generator]

Summary

Uniswap v4 pool initializer that distributes liquidity across multiple positions using a bonding curve (Multicurve). Supports dynamic LP fees, optional Doppler Hook callbacks on initialization and swaps, and fee collection via afterSwap delta returns.

Flags

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

Properties

Property	Value
dynamicFee	true
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

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

Closes #1087

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 16, 2026 2:40pm

[github-actions]

Review: hooks/robinhood/0x4e3468951d49f2eea976ed0d6e75ffcb44a9a544.json

Contract: DopplerHookInitializer (verified on Robinhood chain, chainId 4663)

Address Flags

Lowest 14 bits of 0x...a9a544 = 0xa544 mod 0x4000 = 9540 = 10 0101 0100 0100₂:

Bit	Flag	Address	File	Match
13	beforeInitialize	1	true	✓
12	afterInitialize	0	false	✓
11	beforeAddLiquidity	0	false	✓
10	afterAddLiquidity	1	true	✓
9	beforeRemoveLiquidity	0	false	✓
8	afterRemoveLiquidity	1	true	✓
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	✓

All flags match getHookPermissions() in source (lines 563–580). ✓

Properties

• dynamicFee: true — Correct. The contract calls poolManager.updateDynamicLPFee() in initialize() (line 238) when a Doppler hook is configured, and exposes updateDynamicLPFee() (line 425–431) for the Doppler hook to call. The pool key also uses LPFeeLibrary.DYNAMIC_FEE_FLAG when a Doppler hook is set (line 277). ✓

• upgradeable: false — Correct. The contract is a plain implementation with no proxy pattern, no delegatecall, no mutable implementation pointer, and no SELFDESTRUCT. ✓

• requiresCustomSwapData: false — Correct. The _afterSwap function only uses data when a Doppler hook with ON_SWAP_FLAG is configured. Swaps with empty hookData execute normally; there is no revert path triggered by absent hookData. ✓

• vanillaSwap: false — Correct. afterSwapReturnsDelta is true and _afterSwap can return a non-zero delta (fee taken by the Doppler hook via poolManager.take). This modifies the effective swap output, so the swap is not vanilla. ✓

• swapAccess: "none" — Correct. The hook has no beforeSwap flag, so there is no swap-time access control. ✓

Metadata

• name: "Doppler" — Reasonable project-qualified label. The NatSpec title is "Doppler Hook Uniswap V4 Multicurve Initializer" (line 177) and the contract name is DopplerHookInitializer. No promotional, audit, or endorsement language. ✓

• description — Accurate. Claims (bonding curve / Multicurve liquidity distribution, dynamic LP fees, optional Doppler Hook callbacks on initialization and swaps, fee collection via afterSwap delta) are all substantiated by the source code. ✓

• verifiedSource: true — Confirmed by source_meta.json ("verified": true). ✓

• chainId: 4663 — Matches chains.json robinhood entry. ✓

All checks pass.