{"hook":"0xCf57aa494E8b99E6d9C5098E55F04b73eeD278CC","block":92981542,"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":23400,"selectors":["0xdcf6836b","0xe1b4af69","0xf08cdfa2","0xf62983f0","0xc45a0155","0xc4e833ce","0xdc4c90d3","0xdc98354e","0xb0eae375","0xb47b2fb1","0xb6a8b0fa","0xb996be53","0x8e414478","0x9f063efc","0xad69d4d5","0x6fe7e6eb","0x791b98bc","0x8c17f334","0x8cf56d7c","0x4f214d78","0x575e24b4","0x6166e874","0x6c2bbe7e","0x0dc5b294","0x21d0ee70","0x259982e5","0x44a6fc9a","0x0177928f","0x06d3bb25","0x0b3bee39"],"delegatecall":false,"selfdestruct":false,"create":false,"calls":3,"addresses":["0x0100000000000000000000000000000000000000"]},"proxy":{"implementation":null,"admin":null,"beacon":null,"clone":false},"owner":null,"functions":[{"selector":"0xdcf6836b","name":"quoteIsCurrency0(bytes32)"},{"selector":"0xe1b4af69","name":"afterDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)"},{"selector":"0xf08cdfa2","name":"liquidityAccessOf(bytes32)"},{"selector":"0xf62983f0","name":"rulesOf(bytes32)"},{"selector":"0xc45a0155","name":null},{"selector":"0xc4e833ce","name":"getHookPermissions()"},{"selector":"0xdc4c90d3","name":"poolManager()"},{"selector":"0xdc98354e","name":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)"},{"selector":"0xb0eae375","name":"implementationHashOf(bytes32)"},{"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":"0xb996be53","name":"isConfigured(bytes32)"},{"selector":"0x8e414478","name":"engineVersionOf(bytes32)"},{"selector":"0x9f063efc","name":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0xad69d4d5","name":"platformSharePpmOf(bytes32)"},{"selector":"0x6fe7e6eb","name":"afterInitialize(address,(address,address,uint24,int24,address),uint160,int24)"},{"selector":"0x791b98bc","name":"positionManager()"},{"selector":"0x8c17f334","name":"initTimeOf(bytes32)"},{"selector":"0x8cf56d7c","name":"openingPriceOf(bytes32)"},{"selector":"0x4f214d78","name":"cumulativeQuoteVolume(bytes32)"},{"selector":"0x575e24b4","name":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)"},{"selector":"0x6166e874","name":"blockedBy(bytes32,bool,uint256,uint256)"},{"selector":"0x6c2bbe7e","name":"afterRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0x0dc5b294","name":"configHashOf(bytes32)"},{"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":"0x44a6fc9a","name":"referenceTickOf(bytes32)"},{"selector":"0x0177928f","name":"vaultOf(bytes32)"},{"selector":"0x06d3bb25","name":"feePpmFor(bytes32,bool,uint256)"},{"selector":"0x0b3bee39","name":"configure((address,address,uint24,int24,address),(uint8,uint256,address,uint160,uint24,uint8,uint8,(uint128,uint24,uint24)[],(uint128,uint24)[],(uint128,uint24)[],(uint8,address,uint24)[],uint256,uint256,uint256,uint256,uint256,uint256),address)"}],"history":{"pools":55,"firstTime":1787657432,"lastTime":1788776773},"pools":[{"id":"0x455c8018741182531ae58ec834dd8b652546a6be049e00f5a1aad9d142a23428","key":{"currency0":"0x117cc2133c37B721F49dE2A7a74833232B3B4C0C","currency1":"0xd2979A3831B73927430f4cE6AA5ffc00438D763F","fee":8388608,"tickSpacing":200,"hooks":"0xCf57aa494E8b99E6d9C5098E55F04b73eeD278CC"},"symbols":["SPY","SPY"],"state":{"sqrtP":"1578265245468595147975671024647322","tick":197999,"protocolFee":0,"lpFee":0,"liquidity":"12553855744618373994159"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"315098785191822","paid":"315098785191822","got":"124977103366091214527080","expected":"124977103366091214527080","feePpm":0,"takePpm":0},{"zeroForOne":false,"ok":false,"why":"thin","reason":"no liquidity above the price"}],"roundTrip":{"ok":true,"lossPpm":1,"added":["-1862423565356","-980526453919714897055"],"removed":["1862423565355","980526453919714897054"]}},{"id":"0xae8a223dfa6baf5fd36ea38dd07177744f1c22ce6c5c3d4b74a15491cdcb2d0e","key":{"currency0":"0x0000000000000000000000000000000000000000","currency1":"0xC1bc363493e53BC78bCF82C4492045CB83714f35","fee":8388608,"tickSpacing":200,"hooks":"0xCf57aa494E8b99E6d9C5098E55F04b73eeD278CC"},"symbols":["ETH","SPRM"],"state":{"sqrtP":"1505743620250551329246990668209966","tick":197059,"protocolFee":0,"lpFee":0,"liquidity":"12553855744618373994159"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"330274991618345","paid":"330274991618345","got":"119234378765663676278164","expected":"119234378765663676278164","feePpm":0,"takePpm":0},{"zeroForOne":false,"ok":true,"amountIn":"119293995955046613368678","paid":"119293995955046613368678","got":"330109936650020","expected":"330109936650020","feePpm":0,"takePpm":0}],"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":"pass","detail":"A swap through it pays the pool fee and nothing else."},{"id":"03","title":"LPs can get out","status":"pass","detail":"Liquidity added and removed in the same block came back whole."},{"id":"04","title":"The fee is the fee","status":"caution","detail":"Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change."},{"id":"05","title":"No one holds the switch","status":"caution","detail":"No owner() but it has blockedBy."},{"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":"55 pools over 55 days."}],"score":85,"verdict":"caution"}