ETH / GAGE
fee dynamic, now 0%- Swap ETH → GAGEhook takes 0.30%
- Swap GAGE → ETHhook takes 0.30%
- Add, then remove liquiditycame back whole
pool 0x5432fe22185df5e19101c17f159cfa0bbd72a89a01c7b204d68dc54bd5cba99c
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
22 pools use this hook, the first one 60 d ago.
The address enables before swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 0.30% on top of the pool fee.
Liquidity added and removed in the same block came back whole.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
No owner() but it has collectFees, setHookFee, setLpFee.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
22 pools over 59 days.
Measured at block 92,975,229. A hook with an owner or a dynamic fee can behave differently later; scan again before a large trade.
A v4 hook's permissions are the last fourteen bits of its address. The PoolManager calls only what they switch on.
A small swap each way and a liquidity round trip, run through the PoolManager and this hook inside a call that is never sent. The pool fee is expected; anything else missing is the hook.
pool 0x5432fe22185df5e19101c17f159cfa0bbd72a89a01c7b204d68dc54bd5cba99c
pool 0x86d4503df74b624115bedaef1e9a9959d80f475bbefcab570f857e1a6e7d41e4
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.