{"assessments":[],"deployments":[],"fuzz":[],"identity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"interpretation":"Records acceptance and evidence. Neither completion nor an AI assessment establishes correctness, safety, or independent review.","jobId":"93078fa6-dbc5-462d-a867-7fa9aed05a6d","kind":"shape:chain","nodes":[{"acceptedSubmissionHash":"c68faccde2452aaf80ac7999557b779546265fb505ad64d632ded30f4cc80c40","dependsOn":["build_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"c26edc76dc7a76e09a42c3634054429c1679c6e247747d647a03f77e5b332d7e","skillId":"adversarial-review","tools":[]},"key":"adversarial_review","kind":"code","role":"review","skillHash":"c26edc76dc7a76e09a42c3634054429c1679c6e247747d647a03f77e5b332d7e","skillId":"adversarial-review","state":"accepted"},{"acceptedSubmissionHash":"3938a27c56534a1222f04e3f57c4bfd1ad7a40dc065b38444e9d60663ffa6a2b","dependsOn":[],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"fb6887b34514bcb194265fa403f0195c6a83eaef269da1e6189e1e9c4b372a7d","skillId":"build-contract-project","tools":[]},"key":"build_contract_project","kind":"code","role":"implement","skillHash":"fb6887b34514bcb194265fa403f0195c6a83eaef269da1e6189e1e9c4b372a7d","skillId":"build-contract-project","state":"accepted"}],"objective":"Build LaunchFeeLadderHook, a simple, creative Uniswap v4 hook: a dynamic-fee hook for new pools: the fee starts at a high value at pool initialization and decays linearly to a floor over the first N blocks (all three fixed at construction), then stays at the floor; per-PoolId start block recorded in afterInitialize. Tests cover the start, midpoint, floor and a second pool starting later. Deliver a pinned/vendored Foundry project: the hook contract under src/, a Foundry test suite under test/ that exercises it against a real PoolManager from vendored v4-core (initialize a pool, add liquidity, run swaps through a router or PoolSwapTest), and a README. Validate the pool at afterInitialize where the design needs a dynamic fee (the pool must carry LPFeeLibrary.DYNAMIC_FEE_FLAG) and revert otherwise. Authenticate every callback as coming from the canonical PoolManager and never trust sender or hookData for identity. Keep per-PoolId state isolated, keep LP exits possible, and add no owner or admin powers beyond what the design names. No token, no deployment, no launch manifest, no website: this is source and tests for GitHub publication only.","parentJobId":null,"planHash":"c335efa387c43918b400a30f98e6a4981e0d96058d0e44d36b2498068f432b10","previousHash":"33dbbd18d870d5f4ef31ba1ee3167c99e4523c444bbb7da8501fdcaf64c56bfb","projectId":"93078fa6-dbc5-462d-a867-7fa9aed05a6d","publication":{"commit":"342c6bb224a20d9cab89c44b3d8cdd08e684c436","deliveredAt":"2026-09-21T04:20:10.470Z","repoUrl":"https://github.com/Identity-md/launch-77-build-launchfeeladderhook-simple-creativ"},"receiptIdentity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"registry":"0xb6d0a187b050fa5bb0b87033a203f37becf4a775","research":[],"schema":"identitymd-work-v1","signals":[],"site":null,"snapshotHash":"416bc3f47eb73a83d8734122887d69bd24a1dd6cc11669d9dafb92dd00e642b3","state":"completed","submissions":[{"artifacts":[],"attempt":1,"bundleHash":"261abea0fd3cc2169d7c7fb7afc9680f47298f0c79efe5b231f4ff1a85095f87","device":"93ca4a1020037bf1","findings":[],"hash":"3938a27c56534a1222f04e3f57c4bfd1ad7a40dc065b38444e9d60663ffa6a2b","nodeId":"cf69240a-09b1-41a7-bdeb-9514e4293b18","outcome":"completed","summary":"`LaunchFeeLadderHook` is built and its tests pass. On a clean tree, `forge build --offline`, `forge test --offline` (37 tests) and `forge fmt --check` all pass. I haven't committed anything; the work is untracked in the working tree.\n\n- **What it does:** the pool's LP fee is `startFee` in the initialization block, falls linearly to `floorFee` over `decayBlocks` blocks, then stays at the floor. All three are constructor arguments and immutable, and each pool's start block is recorded in `afterInitialize`.\n- **Validation and authentication:** `afterInitialize` reverts unless the pool carries `DYNAMIC_FEE_FLAG`. Every callback is restricted to the `PoolManager` given at construction, and `sender` and `hookData` are ignored. The hook has no owner, admin or upgrade path, and it does not use `delegatecall`, `callcode` or `selfdestruct`.\n- **Permissions:** only `afterInitialize` and `beforeSwap` are enabled, so LP exits are never gated and the hook can't touch swap amounts.\n- **Tests:** they run on a real vendored `PoolManager` with `PoolSwapTest` and `PoolModifyLiquidityTest`.\n  - Start, midpoint, one block before the floor, floor and long after are covered, in both swap directions and for exact-output.\n  - A second pool starting later runs its own ladder.\n  - Failure cases covered: a static-fee pool is rejected, `afterInitialize` can't be replayed, and every callback refuses non-manager callers, including a second real `PoolManager`.\n- **Checking the fee actually charged:** each swap is rolled back and replayed on a hookless pool with the expected static fee, and the balance deltas must match.\n- **Mutation check:** I broke the hook on purpose in several ways and the suite caught each one.\n- **Protected checks:** I ran your two protected suites against the hook's creation code. The three hook tests pass, and the token suite skips because no token code was supplied.\n- **Vendored code:** `lib/` holds unmodified v4-core (`46c6834`), solmate (`89365b8`) and forge-std (`v1.16.2`), with no submodules. The pins are in the README.\n\n**Additions beyond the brief:**\n- I wrote `src/HookFlags.sol` and `test/mocks/MockERC20.sol` because the protected hook test imports them.\n- v4-periphery no longer ships `BaseHook`, so I wrote a minimal one in `src/base/BaseHook.sol`.\n\n**What the README covers:**\n- Constructor parameters and address mining: the address must carry flag bits `0x1080`.\n- Operational responsibilities: `decayBlocks` counts blocks on the deployment chain, not seconds, and initialization and first liquidity should happen together.\n- Known gaps: pool initialization is permissionless, so someone else can start your intended pool's clock, and `slot0.lpFee` reads 0 for a dynamic pool.\n\nThis is not an audit.","treeHash":"cb0ba36efdd3fd4ffa5e4fcaa9cc4a1d8c438b5c","usage":{"cachedInputTokens":2629206,"inputTokens":58,"model":"claude-sonnet-5","outputTokens":68820,"runtime":"claude","turns":31,"wallClockMs":816383}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"3f6a9bdd601cb99f","findings":[],"hash":"c68faccde2452aaf80ac7999557b779546265fb505ad64d632ded30f4cc80c40","nodeId":"981cb776-5525-469b-baf1-a22a24833537","outcome":"completed","summary":"Completed the review and wrote the required output to `.imd-findings.json`:\n\n```json\n{\"findings\":[]}\n```\n\nI found no substantiated defects with concrete failing inputs. I also ran `forge test`; all 37 tests passed.","treeHash":null,"usage":{"cachedInputTokens":292224,"inputTokens":50655,"model":null,"outputTokens":3716,"runtime":"codex","turns":8,"wallClockMs":87653}}],"verification":[{"checks":[{"durationMs":2319,"exitCode":0,"name":"build","output":"Compiling 76 files with Solc 0.8.26\nSolc 0.8.26 finished in 2.19s\nCompiler run successful!\nwarning[erc20-unchecked-transfer]: ERC20 'transfer' and 'transferFrom' calls should check the return value\n   ╭▸ test/LaunchFeeLadderHook.t.sol:66:9\n   │\n66 │         token0.transfer(alice, 1e9 ether);\n   │         ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n   │\n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#erc20-unchecked-transfer\n\nwarning[erc20-unchecked-transfer]: ERC20 'transfer' and 'transferFrom' calls should check the return value\n   ╭▸ test/LaunchFeeLadderHook.t.sol:67:9\n   │\n67 │         token1.transfer(alice, 1e9 ether);\n   │         ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n   │\n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#erc20-unchecked-transfer\n\nwarning[unsafe-typecast]: typecasts that can truncate values should be checked\n    ╭▸ test/LaunchFeeLadderHook.t.sol:632:16\n    │\n632 │         return uint24(uint256(FLOOR_FEE) + ceilDiv);\n    │                ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n    │\n    ├ note: consider disabling this lint if you're certain the cast is safe\n    │       \n    │       // casting to 'uint24' is safe because [explain why]\n    │       // forge-lint: disable-next-line(unsafe-typecast)\n    │       \n    │       \n    ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#unsafe-typecast\n\nwarning[unsafe-typecast]: typecasts that can truncate values should be checked\n    ╭▸ test/LaunchFeeLadderHook.t.sol:707:25\n    │\n707 │         int24 spacing = int24(int256(++controlCount));\n    │                         ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n    │\n    ├ note: consider disabling this lint if you're certain the cast is safe\n    │       \n    │       // casting to 'int24' is safe because [explain why]\n    │       // forge-lint: disable-next-line(unsafe-typecast)\n    │       \n    │       \n    ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#unsafe-typecast\n\nwarning[unsafe-typecast]: typecasts that can truncate values should be checked\n    ╭▸ test/LaunchFeeLadderHook.t.sol:707:31\n    │\n707 │         int24 spacing = int24(int256(++controlCount));\n    │                               ━━━━━━━━━━━━━━━━━━━━━━\n    │\n    ├ note: consider disabling this lint if you're certain the cast is safe\n    │       \n    │       // casting to 'int256' is safe because [explain why]\n    │       // forge-lint: disable-next-line(unsafe-typecast)\n    │       \n    │       \n    ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#unsafe-typecast\n\n","passed":true},{"durationMs":288,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 37 tests for test/LaunchFeeLadderHook.t.sol:LaunchFeeLadderHookTest\n[PASS] testFuzz_anyValidScheduleHitsBothEndpointsAndStaysBetween(uint24,uint24,uint64,uint64) (runs: 512, μ: 92053, ~: 91954)\n[PASS] testFuzz_feeIsBoundedMonotoneAndMatchesIndependentFormula(uint256,uint256) (runs: 512, μ: 354600, ~: 354325)\n[PASS] testFuzz_poolsAreIsolated(uint16,uint16) (runs: 512, μ: 623980, ~: 623462)\n[PASS] test_aDifferentPoolManagerCannotDriveTheHook() (gas: 4066112)\n[PASS] test_addingLiquidityIsUngatedAndDoesNotRestartTheLadder() (gas: 414160)\n[PASS] test_afterInitializeCannotBeReplayedForAStartedPool() (gas: 357659)\n[PASS] test_attackerCannotStartOrResetAClockByCallingTheHookDirectly() (gas: 88223)\n[PASS] test_beforeSwapRefusesAPoolThatWasNeverStarted() (gas: 20723)\n[PASS] test_beforeSwapStaysWithinTheGasBudget() (gas: 355768)\n[PASS] test_callbacksTheHookDoesNotUseRevertEvenForThePoolManager() (gas: 48164)\n[PASS] test_constructorAcceptsFlatAndMaximalSchedules() (gas: 33644)\n[PASS] test_constructorRejectsAddressThatDisagreesWithPermissions() (gas: 49328)\n[PASS] test_constructorRejectsFloorAboveStart() (gas: 9539640)\n[PASS] test_constructorRejectsStartFeeAboveMax() (gas: 1346135)\n[PASS] test_constructorRejectsZeroDecayWindow() (gas: 15864657)\n[PASS] test_constructorStoresScheduleAndManager() (gas: 10387)\n[PASS] test_deploysAtMinedCreate2Address() (gas: 45733011)\n[PASS] test_dynamicFlagWithExtraBitsIsRejectedByThePoolManagerBeforeTheHookRuns() (gas: 23812)\n[PASS] test_everyCallbackRefusesCallersOtherThanThePoolManager() (gas: 225884)\n[PASS] test_exactOutputSwapPaysLadderFee() (gas: 1206042)\n[PASS] test_feeSensitivityOfTheFeeCheckItself() (gas: 798286)\n[PASS] test_initializeRevertsForEveryStaticFeeValue() (gas: 137825)\n[PASS] test_initializeRevertsForStaticFeePool() (gas: 57716)\n[PASS] test_liquidityCanBeRemovedInTheStartBlockAndAtEveryLaterStage() (gas: 610568)\n[PASS] test_permissionsAreExactlyAfterInitializeAndBeforeSwap() (gas: 9362)\n[PASS] test_pinnedFeeValuesAcrossTheSchedule() (gas: 364367)\n[PASS] test_runtimeCodeHasNoDelegatecallCallcodeOrSelfdestruct() (gas: 1332864)\n[PASS] test_samePoolCannotBeInitializedTwiceSoStartBlockIsFinal() (gas: 356832)\n[PASS] test_secondPoolStartingLaterRunsItsOwnLadder() (gas: 2325660)\n[PASS] test_senderAndHookDataNeverInfluenceTheFee() (gas: 996556)\n[PASS] test_swapAtFloorPaysFloorFeeAndStaysThere() (gas: 1207062)\n[PASS] test_swapAtMidpointPaysInterpolatedFee() (gas: 800974)\n[PASS] test_swapInInitializationBlockPaysStartFee() (gas: 800198)\n[PASS] test_swapOneBlockBeforeFloorStillPaysAboveFloor() (gas: 800942)\n[PASS] test_swapsAndLiquidityInOnePoolDoNotTouchAnothersClock() (gas: 877937)\n[PASS] test_swapsSucceedInBothDirectionsAtEveryStageOfTheWindow() (gas: 2298602)\n[PASS] test_unstartedPoolHasNoRecordAndReverts() (gas: 19783)\nSuite result: ok. 37 passed; 0 failed; 0 skipped; finished in 140.51ms (507.40ms CPU time)\n\nRan 1 test suite in 141.57ms (140.51ms CPU time): 37 tests passed, 0 failed, 0 skipped (37 total tests)\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"3938a27c56534a1222f04e3f57c4bfd1ad7a40dc065b38444e9d60663ffa6a2b","verifiedTreeHash":"cb0ba36efdd3fd4ffa5e4fcaa9cc4a1d8c438b5c","verifierVersion":"0.1.0+eab70f1b"}]}