Composer Rules Pools Scan Launch

Scanner/0x39ab…eaa8

Hook report

0x39ab44a83acdce79083bedcb4e8915ae760eeaa8

Reading the hook…

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Modular infrastructure for Uniswap v4 hooks. Running on Robinhood Chain.

$RULECRAFT contract · Robinhood Chain

Published at launch

@rulecraftfun GitHub

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Robinhood Chain · chain 4663 · v4 PoolManager 0x8366…0951

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© 2026 Rule Craft

Callbacks

6 / 14

Bytecode

23,123 B

contract

Recent pools

0

last ~8 hours

Explorer

Permission bits

13BI

12AI

11BA

10AA

9BR

8AR

7BS

6AS

5BD

4AD

3BSΔ

2ASΔ

1AAΔ

0ARΔ

BI beforeInitialize · BA beforeAddLiquidity · BR beforeRemoveLiquidity · BS beforeSwap · BD beforeDonate · BSΔ beforeSwapReturnDelta

mask 0x2aa8bits 101010101010006/14 on can change amounts

Callbacks, in words

beforeInitializeInitRuns before the pool's starting price is set. Can refuse to open the pool or check who opens it.
beforeAddLiquidityLiquidityRuns before anyone adds liquidity. Can restrict who provides liquidity or in which range.
beforeRemoveLiquidityLiquidityRuns before anyone removes liquidity. Can delay or block LP exits. Read the unlock terms.
beforeSwapSwapRuns before every swap, can override the LP fee. Fees can change per trade. Check the fee range.
beforeDonateDonateRuns before a donation to in-range LPs. Can gate who may donate to the pool.

Before you trust it

Quote a small trade first and compare what you receive with a hook-free quote.
If you provide liquidity, find out under which conditions the hook lets you withdraw.
Adding liquidity may be restricted to certain addresses or ranges.

C

Permission read

Active rules

score 48 / 100 · higher means the rules can move a trade further from a plain pool

Hook permissions19/406 of 14 callbacks enabled.
Delta rights9/251 callback can change the amounts you pay or receive.
LP exits10/10The hook runs before every withdrawal and could block it.
Fee movement0/10Fixed fee.
Unknown code10/15Rule parameters and upgrade rights are not visible from bits alone.

A heuristic read of permissions and settings. It is not an audit and does not check the code itself.

Bits show what a hook may do, not what it does. A Rule Craft pool also publishes its module settings, so its read is exact. See methodology.

beforeSwapReturnDelta

Delta

Lets beforeSwap take or give tokens itself. The hook can change what you pay in. Read every rule that uses it.