Runs code on every swap. Can take tokens from swaps. Can block LP withdrawals. Gates who can add liquidity. Runs at pool creation. Handles donations to LPs.
0xf3db1d79948e1c87fc8286fd0951d8432970aaecFirst pool 21 Oct 2026·View on explorer
CBe carefulNot in Uniswap’s hook registry · Can take tokens out of swaps
Pools
3
Dynamic-fee pools
0
Last new pool
15d
Code size
22,549 B
What it can do
Runs code on every swap
Its code executes inside each trade in pools that use it.
Can take tokens from swaps
It can take or add tokens during a swap. Fees, burns and custom curves work this way, and so do scams.
Can block LP withdrawals
It runs before liquidity is removed, so it can delay or refuse LP exits.
Gates who can add liquidity
It checks every deposit before it goes in.
Runs at pool creation
It runs when a pool is created, often to lock in that pool’s settings.
Handles donations to LPs
It runs when someone donates tokens to the pool’s LPs.
Safety report
Automated checks, not an audit
✓Not upgradeableNo proxy pattern found: the code is fixed.
✓No owner foundNo owner() function: nobody has an admin switch (as far as the standard check goes).
!Not in Uniswap’s hook registryUnregistered hooks get less scrutiny. Most scam hooks are unregistered.
✓Source code publishedThe code on the block explorer matches what's deployed (contract: QuirkHookV5).
iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.