CashCatHook
RobinhoodRegisteredFee engine for CashCat pools that skims a configurable ETH-side trading fee from every swap, covering both exact-input and exact-output directions. Supports an optional launch window with a higher fee that decays linearly to a base rate; fees are split between a platform treasury and the pool creator. Pool liquidity is locked at launch — LP removal always reverts.
What it can do
Its code executes inside each trade in pools that use it.
It can take or add tokens during a swap. Fees, burns and custom curves work this way, and so do scams.
It runs before liquidity is removed, so it can delay or refuse LP exits.
It checks every deposit before it goes in.
It runs when a pool is created, often to lock in that pool’s settings.
It runs when someone donates tokens to the pool’s LPs.