MU

Can take from swaps or block them, but cannot trap liquidity. Trade only through quotes that go on-chain.

• takes a cut of swaps
  The hook may add or remove value on every swap. Our fills for this pool come from the on-chain quoter, so whatever it takes is already in the number you see.
• sets its own fee per swap
  Dynamic-fee pool: the hook picks the LP fee at swap time. It can be 0 or 100%, and it can differ by direction, size or sender.
• charges LP entries or exits
  The hook can take value when liquidity is added or removed — an LP-side fee on top of the swap fee.