Add Aegis hook on ethereum

[hooklist-generator]

Summary

AegisHook applies dynamic swap fees sourced from an external DynamicFeeManager, updates a TWAP oracle on each swap, charges a configurable hook fee on every trade (taken as a BeforeSwapDelta/AfterSwapDelta), and periodically reinvests accumulated fees as full-range liquidity via an AegisEngine on a 1-hour cooldown.

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: describes the broader AegisEngine platform (borrowable liquidity units, oracle-free solvency model, √K collateral floor) which are not substantiated by this hook's Solidity source. Using AI-generated description.

Closes #573

[vercel]

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	May 22, 2026 2:57am

[github-actions]

Review: hooks/ethereum/0x8f29bd5c8429730fa4c46e6295c4e679ededd0cc.json

Contract: AegisHook (source verified on Etherscan, source_meta.json: proxy=false, verified=true)

Flags — Address Bitmask

Address suffix 0xd0cc → lowest 14 bits = 0x10CC (4300):

Bit	Flag	Expected	File
13	beforeInitialize	false	false ✓
12	afterInitialize	true	true ✓
11–8	add/removeLiquidity	false	false ✓
7	beforeSwap	true	true ✓
6	afterSwap	true	true ✓
5–4	donate	false	false ✓
3	beforeSwapReturnsDelta	true	true ✓
2	afterSwapReturnsDelta	true	true ✓
1–0	addLiq/removeLiqReturnsDelta	false	false ✓

getHookPermissions() in source confirms all 14 bits identically.

Properties

• dynamicFee = true ✓
  _beforeSwap calls DYNAMIC_FEE_MANAGER.prepareSwap() and returns activeFee | LPFeeLibrary.OVERRIDE_FEE_FLAG — explicit LP fee override on every swap.

• upgradeable = false ✓
  No proxy pattern, no delegatecall, no mutable implementation pointer, no SELFDESTRUCT. source_meta.json confirms proxy: false. Ownable/Pausable do not introduce upgradeability.

• requiresCustomSwapData = false ✓
  The hookData parameter in _beforeSwap is completely ignored (bytes calldata with no usage). Swaps execute normally with empty hookData.

• vanillaSwap = false ✓
  dynamicFee=true, beforeSwapReturnsDelta=true, afterSwapReturnsDelta=true — all independently mandate false. The hook also charges a configurable hook fee deducted from the swap input via delta returns, materially changing swap economics.

• swapAccess = "none" ✓
  _beforeSwap has no access control guard. The Pausable pattern is present in the contract but _beforeSwap has no whenNotPaused modifier and BaseHook.beforeSwap also applies no pausing — paused() is only checked inside _tryReinvest (fee reinvestment path).

Metadata

• chainId = 1 ✓ — matches chains.json ethereum entry.
• verifiedSource = true ✓ — confirmed by source_meta.json.
• name = "Aegis" ✓ — recognizable abbreviation of the on-chain contract name AegisHook; no promotional or endorsement language.
• description ✓ — accurately captures all four behaviors substantiated by the source: (1) dynamic fees from IDynamicFeeManager, (2) TWAP oracle updates via IOracleManager.afterSwap, (3) per-swap hook fee charged as BeforeSwapDelta/AfterSwapDelta, and (4) periodic full-range fee reinvestment via IAegisEngine on the 1-hour REINVEST_COOLDOWN. No marketing, audit, or affiliation language.

All fields are correct and consistent with the verified on-chain source.

[marktoda]

Bot review verified. Aegis on ethereum (0x8f29...d0cc). Bitmask 0x10cc → afterInitialize, beforeSwap, afterSwap, beforeSwapReturnsDelta, afterSwapReturnsDelta. dynamicFee=true. LGTM.