SUSD / USDG
fee 0.05%- Swap SUSD → USDGrefused: NotGateOwner
- Swap USDG → SUSDnothing taken
- Add, then remove liquiditycame back whole
pool 0xa783106096f01d545e8dbb130b01bab501ac73f900b5cb0967e26ca648d9ee12
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
8 pools use this hook, the first one 28 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
One direction works and the other is refused (NotGateOwner). You may be able to buy and not sell.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0.05%, written in the pool key.
No owner and no admin functions found.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
8 pools over 27 days.
Measured at block 93,113,320. 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 0xa783106096f01d545e8dbb130b01bab501ac73f900b5cb0967e26ca648d9ee12
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.