{"hook":"0x921656c5Ae4738585953Fca6608F7f9F1F45F8Cc","block":93467424,"bits":14540,"flags":[{"bit":13,"key":"beforeInitialize","label":"Before initialize","risk":0,"does":"Runs once, when a pool is created.","fn":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)","on":true},{"bit":12,"key":"afterInitialize","label":"After initialize","risk":0,"does":"Runs once, right after a pool is created.","fn":"afterInitialize(address,(address,address,uint24,int24,address),uint160,int24)","on":true},{"bit":11,"key":"beforeAddLiquidity","label":"Before add liquidity","risk":1,"does":"Can refuse a deposit, or only let some addresses provide liquidity.","fn":"beforeAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)","on":true},{"bit":10,"key":"afterAddLiquidity","label":"After add liquidity","risk":0,"does":"Runs after each deposit.","fn":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)","on":false},{"bit":9,"key":"beforeRemoveLiquidity","label":"Before remove liquidity","risk":2,"does":"Can refuse a withdrawal. LPs may not get out.","fn":"beforeRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)","on":false},{"bit":8,"key":"afterRemoveLiquidity","label":"After remove liquidity","risk":0,"does":"Runs after each withdrawal.","fn":"afterRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)","on":false},{"bit":7,"key":"beforeSwap","label":"Before swap","risk":1,"does":"Runs before every swap. On a dynamic-fee pool it can set the fee each time.","fn":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)","on":true},{"bit":6,"key":"afterSwap","label":"After swap","risk":0,"does":"Runs after every swap.","fn":"afterSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),int256,bytes)","on":true},{"bit":5,"key":"beforeDonate","label":"Before donate","risk":0,"does":"Runs before a donation to LPs.","fn":"beforeDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)","on":false},{"bit":4,"key":"afterDonate","label":"After donate","risk":0,"does":"Runs after a donation to LPs.","fn":"afterDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)","on":false},{"bit":3,"key":"beforeSwapReturnDelta","label":"Before swap returns delta","risk":2,"does":"Can take part of what you put into a swap, or change how much is swapped.","fn":null,"on":true},{"bit":2,"key":"afterSwapReturnDelta","label":"After swap returns delta","risk":2,"does":"Can take part of what you get out of every swap.","fn":null,"on":true},{"bit":1,"key":"afterAddLiquidityReturnDelta","label":"After add returns delta","risk":2,"does":"Can charge LPs on the way in.","fn":null,"on":false},{"bit":0,"key":"afterRemoveLiquidityReturnDelta","label":"After remove returns delta","risk":2,"does":"Can take part of what LPs withdraw.","fn":null,"on":false}],"code":{"size":6936,"selectors":["0x04e8805c","0x1ac40d7c","0x21d0ee70","0x259982e5","0x2975067d","0x575e24b4","0x6c2bbe7e","0x6fe7e6eb","0x77a06777","0x791b98bc","0x9040f866","0x9f063efc","0xb47b2fb1","0xb6a8b0fa","0xc45a0155","0xc4e833ce","0xd4175be2","0xdc4c90d3","0xdc98354e","0xe1b4af69","0xe1f1c4a7","0xe42a8a2d","0xe88791db","0xfd60b9b2"],"delegatecall":false,"selfdestruct":false,"create":false,"calls":2,"addresses":[]},"proxy":{"implementation":null,"admin":null,"beacon":null,"clone":false},"owner":null,"functions":[{"selector":"0x04e8805c","name":"totalFeeBps(bytes32)"},{"selector":"0x1ac40d7c","name":"setProtocolFeeShare(uint16)"},{"selector":"0x21d0ee70","name":"beforeRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)"},{"selector":"0x259982e5","name":"beforeAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)"},{"selector":"0x2975067d","name":"MAX_CREATOR_TAX_BPS()"},{"selector":"0x575e24b4","name":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)"},{"selector":"0x6c2bbe7e","name":"afterRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0x6fe7e6eb","name":"afterInitialize(address,(address,address,uint24,int24,address),uint160,int24)"},{"selector":"0x77a06777","name":"registerPool((address,address,uint24,int24,address),address,address,uint16,int24)"},{"selector":"0x791b98bc","name":"positionManager()"},{"selector":"0x9040f866","name":"protocolFeeShareBps()"},{"selector":"0x9f063efc","name":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0xb47b2fb1","name":"afterSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),int256,bytes)"},{"selector":"0xb6a8b0fa","name":"beforeDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)"},{"selector":"0xc45a0155","name":null},{"selector":"0xc4e833ce","name":"getHookPermissions()"},{"selector":"0xd4175be2","name":"poolIds(address)"},{"selector":"0xdc4c90d3","name":"poolManager()"},{"selector":"0xdc98354e","name":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)"},{"selector":"0xe1b4af69","name":"afterDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)"},{"selector":"0xe1f1c4a7","name":"BASIS_POINTS()"},{"selector":"0xe42a8a2d","name":"poolFeeConfigs(bytes32)"},{"selector":"0xe88791db","name":"BASE_FEE_BPS()"},{"selector":"0xfd60b9b2","name":"quotePaymentFee(uint256,uint16,bool)"}],"history":{"pools":3,"firstTime":1789072485,"lastTime":1789072619},"pools":[{"id":"0x8d7bd9affdc0906971e0cf3f142c1865a79c2703b6928e0596dbbeab6b53430e","key":{"currency0":"0x6F24A5136515b3f9cbF02A673EF2999E675dEe83","currency1":"0xD5f3879160bc7c32ebb4dC785F8a4F505888de68","fee":0,"tickSpacing":200,"hooks":"0x921656c5Ae4738585953Fca6608F7f9F1F45F8Cc"},"symbols":["BIRB","QQQ"],"state":{"sqrtP":"4761710756069326395962688","tick":-194400,"protocolFee":0,"lpFee":0,"liquidity":"60099199715263372450833"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"8484033070875778484313","paid":"8484033070875778484313","got":"30338961972108","expected":"30645416133442","feePpm":0,"takePpm":10000},{"zeroForOne":false,"ok":true,"amountIn":"1806018192481776","paid":"1806018192481776","got":"494738306152444477927204","expected":"499733165350647633403189","feePpm":0,"takePpm":9996}],"roundTrip":{"ok":false,"stage":"add","reason":"NotPositionManager"}},{"id":"0xaadb9706c5ed910df55d78f574d4d045a0c563c7a1f135d639897fce3412f8e0","key":{"currency0":"0xC0ff000BF30638704AAd98A1B4B83E09DB5Aa70f","currency1":"0xD5f3879160bc7c32ebb4dC785F8a4F505888de68","fee":0,"tickSpacing":200,"hooks":"0x921656c5Ae4738585953Fca6608F7f9F1F45F8Cc"},"symbols":["Rootato","QQQ"],"state":{"sqrtP":"4837729218524083411389051","tick":-194083,"protocolFee":0,"lpFee":0,"liquidity":"60099199715263372450833"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"492126465427801548668704","paid":"492126465427801548668704","got":"1797254783850548","expected":"1833933452908722","feePpm":0,"takePpm":20000},{"zeroForOne":false,"ok":true,"amountIn":"1834850419635177","paid":"1834850419635177","got":"482047732730207775600219","expected":"491880525165218852459740","feePpm":0,"takePpm":19991}],"roundTrip":{"ok":false,"stage":"add","reason":"NotPositionManager"}}],"openCallbacks":[],"checks":[{"id":"01","title":"Permissions that touch your money","status":"caution","detail":"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."},{"id":"02","title":"What it takes from a swap","status":"caution","detail":"It takes 2% of each swap on top of the pool fee."},{"id":"03","title":"LPs can get out","status":"n/a","detail":"Closed to outside LPs: only the hook's own liquidity is in the pool."},{"id":"04","title":"The fee is the fee","status":"pass","detail":"A fixed fee of 0%, written in the pool key."},{"id":"05","title":"No one holds the switch","status":"caution","detail":"No owner() but it has setProtocolFeeShare."},{"id":"06","title":"The code cannot change","status":"pass","detail":"Not a proxy, no DELEGATECALL, no SELFDESTRUCT."},{"id":"07","title":"Only the PoolManager can call it","status":"pass","detail":"Each callback refused a call that did not come from the PoolManager."},{"id":"08","title":"Track record","status":"pass","detail":"3 pools over 39 days."}],"score":71,"verdict":"caution"}