When a pool opens, bots watching the chain can buy in the very first block, before anyone else sees the pool. They then sell into the people who arrive later.
How a guard window works
Snipe Guard limits how much all buyers together can take per block, as a share of supply (between 0.1% and 5%), and adds a tax of up to 60% that goes to LPs. It lasts a fixed number of blocks (5 to 600), then switches off for good.
- A sniper can only take a small slice per block.
- Whatever they take costs them extra.
- Honest buyers pay the same tax, so short windows are kinder.