Add HHook hook on ethereum

[hooklist-generator]

Summary

A Uniswap v4 hook implementing a reserve-backed floor price for the H token. On exact-input sells below RFV, beforeSwap intercepts the swap, burns the H, and pays ETH from the treasury at RFV. A 5% swap tax is applied via afterSwap (burning H on buys, routing ETH to treasury on sells). Also mints epoch-based staking rewards on 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	false
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

• Submitter did not provide a name. Using AI-derived "HHook".
• Submitter did not provide a description. Using AI-generated description.

Closes #7108

[vercel]

Deployment failed for project hooklist with the following error:

Resource is limited - try again in 60 minutes (more than 450, code: "api-deployments-paid-per-hour").

Learn More: https://vercel.com/uniswap?upgradeToPro=build-rate-limit

[github-actions]

Review: hooks/ethereum/0x211d79ee98c5658989763bc367ded650a3a7d0cc.json

Address Flag Verification

Address ends in 0xd0cc. Lowest 14 bits: 0xd0cc & 0x3FFF = 0x10cc = 0001 0000 1100 1100.

Bit	Flag	Expected	Filed
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 14 flag bits match. The source also confirms in a comment: HOOK FLAG MASK (lower 14 bits = 0x10CC).

Properties Verification

• dynamicFee: false ✓ — beforeSwap always returns fee=0; no call to poolManager.updateDynamicLPFee() anywhere in the source.
• upgradeable: false ✓ — All key contract references (poolManager, token, treasury, staking) are immutable. No proxy pattern, no delegatecall to mutable addresses, no SELFDESTRUCT. source_meta.json confirms proxy: false.
• requiresCustomSwapData: false ✓ — Both beforeSwap and afterSwap accept bytes calldata but never read from it. Swaps function correctly with empty hookData.
• vanillaSwap: false ✓ — Correct; beforeSwapReturnsDelta and afterSwapReturnsDelta are both true, and the hook actively modifies swap execution (floor price intercept and 5% tax delta).
• swapAccess: "none" ✓ — beforeSwap contains no allowlist, governance flag, or time-based gate. The sender == address(this) guard is an internal routing check (skipping the hook's own potential swaps), not user-facing access control.

Metadata Verification

• verifiedSource: true ✓ — Confirmed by source_meta.json (verified: true).
• chainId: 1 ✓ — Matches chains.json entry for ethereum.
• name: "HHook" ✓ — Matches contractName in source_meta.json and contract HHook is IHooks in source.
• description ✓ — All technical claims are substantiated by the Solidity logic:
  • Reserve-backed floor price: _rfvE18() computes treasury ETH / H supply; beforeSwap intercepts exact-input sells when spotE18 < rfvE18.
  • Burns H and pays ETH at RFV: token.burn(hIn) and treasury.payoutToHook(ethOut).
  • 5% swap tax via afterSwap: TAX_BPS = 500; H burned on buys (token.burn(taxed)), ETH forwarded to treasury on sells (treasury.notifyTax{value: taxed}()).
  • Epoch-based staking rebase triggered on each swap via _maybeRebase().
  • No promotional, audit, or endorsement language.

All fields are correct.

[Ponx]

Bot review verified; bitmask/flags/properties check out. LGTM.