Add Aegis hook on base

[hooklist-generator]

Summary

AegisHook charges dynamic swap fees set per-swap by DynamicFeeManager, collects additional hook fees on each swap, and periodically reinvests them as full-range liquidity via AegisEngine. It manages oracle observation cardinality growth and notifies LimitOrderManager and OracleManager after each swap.

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 audit status claim ("has not yet been audited"). Using AI-generated description.

Closes #574

[vercel]

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	May 22, 2026 2:58am

[github-actions]

Review: hooks/base/0x8f29bd5c8429730fa4c46e6295c4e679ededd0cc.json

Contract: AegisHook on Base (chainId 8453). Source verified on Etherscan.

Flag Verification

Address 0x...d0cc, lowest 14 bits: 0xd0cc & 0x3fff = 0x10cc = 01 0000 1100 1100

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

All flags match getHookPermissions() in source and the bitmask. ✓

Properties Verification

• dynamicFee: true — _beforeSwap calls DYNAMIC_FEE_MANAGER.prepareSwap() and returns activeFee | LPFeeLibrary.OVERRIDE_FEE_FLAG. ✓
• upgradeable: false — No proxy, no delegatecall, all dependencies are immutable. source_meta.json confirms "proxy": false. ✓
• requiresCustomSwapData: false — The bytes calldata hookData in _beforeSwap is unnamed and entirely unused; swaps function correctly with empty hookData. ✓
• vanillaSwap: false — Both beforeSwapReturnsDelta and afterSwapReturnsDelta are true (hook charges input-currency fees), and dynamic fee override is applied on every swap. ✓
• swapAccess: "none" — _beforeSwap has no access control gate. The sender == AEGIS_ENGINE branch only caps the fee, it does not revert or block. The contract inherits Pausable but pausing is an owner admin action, not per-swap access control. ✓

Metadata Verification

• chainId: 8453 matches "base" in chains.json. ✓
• verifiedSource: true matches "verified": true in source_meta.json. ✓
• name: "Aegis" — a clean abbreviation of the verified contract name AegisHook / NatSpec @title AegisHook. No promotional language. ✓
• description — Factually accurate. Covers: DynamicFeeManager setting per-swap fees, hook fees collected via BeforeSwapDelta (exactIn) and afterSwap return delta (exactOut), periodic full-range reinvestment via AegisEngine with cooldown, oracle observation cardinality growth management, and post-swap notifications to LimitOrderManager and OracleManager. All claims substantiated by source logic. ✓

All checks pass.

[marktoda]

Bot review verified. Aegis on base (0x8f29...d0cc, same address as 576). Bitmask 0x10cc → afterInitialize, beforeSwap, afterSwap, beforeSwapReturnsDelta, afterSwapReturnsDelta. dynamicFee=true. LGTM.