Add Aegis Engine hook on monad

[hooklist-generator]

Summary

AegisHook is a Uniswap v4 hook that applies dynamic LP fees computed by an external DynamicFeeManager (overriding the pool fee each swap), charges a configurable hook fee on each swap via BeforeSwapDelta/AfterSwapDelta, and periodically reinvests accumulated hook fees into a full-range LP position through an AegisEngine contract.

Flags

Flag	Value
beforeInitialize	false
afterInitialize	true
beforeAddLiquidity	false
afterAddLiquidity	false
beforeRemoveLiquidity	false
afterRemoveLiquidity	false
beforeSwap	true
afterSwap	true
beforeDonate	false
afterDonate	false
beforeSwapReturnsDelta	true
afterSwapReturnsDelta	true
afterAddLiquidityReturnsDelta	false
afterRemoveLiquidityReturnsDelta	false

Properties

Property	Value
dynamicFee	true
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

• Submitter-proposed description rejected: contains unverifiable claims about oracle-independence and token custody that contradict observed IOracleManager integration and poolManager.mint(address(this)) calls. Using AI-generated description.

Closes #662

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jun 17, 2026 1:37pm

[github-actions]

Review: hooks/monad/0xe449e013004db4a5681e9622ca10c5ba0ea610cc.json

Contract: AegisHook (verified on Monad, chainId 143)

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Flags

Address 0xe449e013004db4a5681e9622ca10c5ba0ea610cc — last 14 bits: 0x10cc = 0b00_0100_0011_0011_00 → masked to 14 bits: 0x10cc.

Bit	Flag	Address	File	Match
13	beforeInitialize	0	false	✓
12	afterInitialize	1	true	✓
11	beforeAddLiquidity	0	false	✓
10	afterAddLiquidity	0	false	✓
9	beforeRemoveLiquidity	0	false	✓
8	afterRemoveLiquidity	0	false	✓
7	beforeSwap	1	true	✓
6	afterSwap	1	true	✓
5	beforeDonate	0	false	✓
4	afterDonate	0	false	✓
3	beforeSwapReturnsDelta	1	true	✓
2	afterSwapReturnsDelta	1	true	✓
1	afterAddLiquidityReturnsDelta	0	false	✓
0	afterRemoveLiquidityReturnsDelta	0	false	✓

Also confirmed against getHookPermissions() in source (lines 112–129).

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Properties

• dynamicFee: true ✓ — _beforeSwap returns activeFee | LPFeeLibrary.OVERRIDE_FEE_FLAG with activeFee sourced from DYNAMIC_FEE_MANAGER.prepareSwap(). _afterInitialize enforces LPFeeLibrary.isDynamicFee(key.fee).

• upgradeable: false ✓ — All external dependencies (ORACLE_MANAGER, DYNAMIC_FEE_MANAGER, AEGIS_ENGINE, LIMIT_ORDER_MANAGER) are immutable. No proxy pattern, delegatecall, or SELFDESTRUCT. source_meta.json confirms "proxy": false.

• requiresCustomSwapData: false ✓ — The bytes calldata hookData parameter is unnamed and unused in both _beforeSwap and _afterSwap. Swaps execute without any hookData.

• vanillaSwap: false ✓ — Dynamic fees are overridden each swap; hook charges fees via BeforeSwapDelta (exactIn) and AfterSwapDelta (exactOut), directly modifying swap economics.

• swapAccess: "none" ✓ — No caller-based gating in _beforeSwap. The sender == address(AEGIS_ENGINE) check (line 219) only caps the fee for engine-initiated swaps — it does not block any swap. The Pausable inherited contract only gates _tryReinvest (checked inside _tryReinvest at line 410), not _beforeSwap itself.

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Metadata

• chainId: 143 ✓ — Matches chains.json entry for monad.
• verifiedSource: true ✓ — Confirmed by source_meta.json.
• name: "Aegis Engine" — The on-chain contract name is AegisHook (NatSpec @title AegisHook). "Aegis Engine" refers to the IAegisEngine dependency (the fee-reinvestment component), not the hook itself. However, it reads as a project-qualified label for the Aegis system and contains no prohibited language (no "audited", "safe", "official", etc.). Acceptable under the project-qualified label allowance.
• description ✓ — Accurately describes dynamic LP fee overriding, configurable hook fees via BeforeSwapDelta/AfterSwapDelta, and fee reinvestment via AegisEngine. All claims are substantiated by the Solidity logic. No marketing or audit claims.
• auditUrl ✓ — Valid schema field, follows https:// pattern.

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Outcome: APPROVE — All flags match the address bitmask, all properties are correctly derived from the source logic, and metadata is accurate.