Composer Rules Pools Scan Launch

Scanner/0x9bc2…e0cc

Hook report

0x9bc2ebd70439aa3b320f1d78083699f986f4e0cc

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

5 / 14

Bytecode

22,947 B

contract

Recent pools

1

last ~8 hours

Explorer

ETH/MARKET · 0%

Permission bits

13BI

12AI

11BA

10AA

9BR

8AR

7BS

6AS

5BD

4AD

3BSΔ

2ASΔ

1AAΔ

0ARΔ

BI beforeInitialize · BS beforeSwap · AS afterSwap · BSΔ beforeSwapReturnDelta · ASΔ afterSwapReturnDelta

mask 0x20ccbits 100000110011005/14 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.
beforeSwapSwapRuns before every swap, can override the LP fee. Fees can change per trade. Check the fee range.
afterSwapSwapRuns after every swap with the final amounts. Reacts to trades: burns, pots, reward accounting.
beforeSwapReturnDeltaDeltaLets beforeSwap take or give tokens itself. The hook can change what you pay in. Read every rule that uses it.
afterSwapReturnDeltaDeltaLets afterSwap take a cut of the output. The hook can change what you receive. Taxes and burns live here.

Before you trust it

Quote a small trade first and compare what you receive with a hook-free quote.

C

Permission read

Active rules

score 46 / 100 · higher means the rules can move a trade further from a plain pool

Hook permissions18/405 of 14 callbacks enabled.
Delta rights18/252 callbacks can change the amounts you pay or receive.
LP exits0/10The hook does not see withdrawals before they happen.
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.