Fee sharing hook on Robinhood Chain

Volume (24h)

$0

Value locked (TVL)

$0

All-time volume

$0

Pools using this hook

2

Swaps (24h)

3 (2 traders)

Total swaps

3

What it does

This hook takes a share of swap flows and credits it to launch creators, while the owner can pause trading and adjust starting parameters.

How it works step by step

• Acts as a launchpad-style Uniswap v4 hook that tracks launches and pools keyed by launch index and subname
• Uses beforeSwap and afterSwap with return-delta permissions, so it can take a share of swap amounts from the pool flow and credit it to creator fee balances
• Accrues creator fees per token and per address in internal mappings that can later be claimed through claimCreatorFees
• Uses an unlockCallback path with self-unlock to move currency through the pool manager during swaps and launches
• Exposes a start tick setting, a pause flag and a base fee and max creator fee configuration
• Includes ERC20 token handling via transfer and approve selectors, consistent with launch token distribution

Swap behaviour

beforeSwap and afterSwap are both enabled with return-delta permissions, so the hook can alter swap deltas and move currency on swaps; the exact fee split between traders and the creator could not be fully determined from decoded bytecode.

Liquidity behaviour

Liquidity add and remove callbacks are present as view selectors, and the hook has no evident state-changing liquidity logic beyond the launch and pool bookkeeping mappings.

Fee behaviour

Fees are set from a base fee in basis points with a maximum creator fee cap; a portion is credited to creator fee balances and claimable via claimCreatorFees, with the remainder going to the pool.

Owner & admin controls

Owner (ownable with two-step transfer and renounce) can set the start tick, pause or unpause the hook, and set extensions and launch-related permissions; no upgrade mechanism is evident.

Enabled Uniswap v4 callbacks

beforeInitialize, beforeSwap, afterSwap, beforeSwapReturnDelta, afterSwapReturnDelta

beforeInitialize registers pool setup for launches; beforeSwap and afterSwap apply swap-time fee accounting and can return deltas; beforeSwapReturnDelta and afterSwapReturnDelta allow the hook to take currency from swap amounts.

Security & trust assessment

Risk level: medium, estimated (decoded bytecode, low confidence).

Who controls it: A single owner key can pause swaps, change the start tick and enable extensions, and can transfer or renounce ownership, so a compromised key could disrupt or redirect pool behaviour.

Risk to user funds: The hook can hold and move pool and user currency through return deltas and claimable creator fee balances; it can also block swaps when paused.

Security findings

• [medium] Return-delta fee capture: beforeSwapReturnDelta and afterSwapReturnDelta let the hook take currency from swaps, so any change to the fee or split logic directly changes what traders receive.
• [medium] Owner pause and start tick control: The owner can call setPaused to block swaps and setStartTick to alter the starting tick used in pool setup, affecting live trading.
• [low] Owner extension and permission control: setExtension(address,bool) and a related owner-gated setter allow the owner to enable extensions that may interact with the hook's flows.
• [low] Self-unlock and currency movement: The hook uses self-unlock and unlockCallback to move currency through the pool manager, which increases the surface for unexpected token flows if the callback path is misconfigured.

Contract details

Verified source

No

Bytecode size

21,686 bytes

Upgradeable proxy

No

Detected patterns

erc20, fee-sharing, launchpad, moves-currency, ownable, pausable, return-delta, self-unlock

Pools using Fee sharing hook