USDG / MO
fee 0%- Swap USDG → MOhook takes 2.00%
- Swap MO → USDGhook takes 2%
- Add, then remove liquiditydeposit refused: ProtocolOnlyLiquidity
pool 0xdb79f45f5578990425bc43be4bc7be7a4136d6b025ceab59d9d9bc424e7cb32a
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
24 pools use this hook, the first one 59 d ago.
The address enables before swap returns delta, after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 2% of each swap on top of the pool fee.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee of 0%, written in the pool key.
No owner() but it has settlePending.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
24 pools over 59 days.
Measured at block 92,950,008. 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 0xdb79f45f5578990425bc43be4bc7be7a4136d6b025ceab59d9d9bc424e7cb32a
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.