Add GoldenGoalHook hook on xlayer

[hooklist-generator]

Summary

A Uniswap v4 hook implementing a sports-themed trading arena: applies match-phase dynamic fees, accumulates per-swap goal points, takes configurable skim fees split between a communal prize pot and GOAL token buyback-and-burn, enforces a temporal anti-snipe buy limit window, and allows pro-rata pot claims at match end.

Flags

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

Properties

Property	Value
dynamicFee	true
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	temporal

Warnings

• Submitter-proposed description rejected: specific numerical values ('20 bps', '50/50 pot/buyback') are not verifiable from source code—they reference storage variables (skimBps, POT_SHARE_BPS) that may be constructor parameters. Using AI-generated description.

Closes #1056

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 11, 2026 1:17pm

[github-actions]

Review: hooks/xlayer/0x742d6c5ec8eca72096c24a1287f5ef0efd0c50c4.json

Address Flags

Address 0x...50c4 → 0x50c4 & 0x3FFF = 0x10c4 = 0001 0000 1100 0100:

Bit	Flag	Expected	JSON
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	false	false ✓
2	afterSwapReturnsDelta	true	true ✓
1	afterAddLiquidityReturnsDelta	false	false ✓
0	afterRemoveLiquidityReturnsDelta	false	false ✓

All flags match the address bitmask. getHookPermissions() in source returns identical values.

Properties

• dynamicFee: true ✓ — _beforeSwap returns fee | LPFeeLibrary.OVERRIDE_FEE_FLAG with a phase-variable fee (Kickoff=3000, Live=5000, ExtraTime=10000, FinalWhistle=5000). _afterInitialize also calls poolManager.updateDynamicLPFee(key, fee).

• upgradeable: false ✓ — Immutable contract (NatSpec: "@dev Immutable"). No proxy pattern, delegatecall, or mutable implementation pointer. source_meta.json confirms proxy: false.

• requiresCustomSwapData: false ✓ — _beforeSwap ignores hookData entirely. In _afterSwap, hookData is optional: if 32 bytes, decodes a trader address for point attribution; otherwise falls back to tx.origin/sender. Swaps function correctly with empty hookData.

• vanillaSwap: false ✓ — Correctly false: dynamicFee=true, afterSwapReturnsDelta=true, and _afterSwap takes a skim fee via poolManager.take() returned as a delta all independently mandate non-vanilla behavior.

• swapAccess: "temporal" ✓ — _enforceAntiSnipe gates large buys on block.timestamp > antiSnipeUntil. This is a configurable time-window restriction (anti-snipe on pool launch), correctly classified as temporal.

Metadata

• verifiedSource: true ✓ — source_meta.json confirms verified: true.
• chainId: 196 ✓ — Matches xlayer in chains.json.
• name: "GoldenGoalHook" ✓ — Matches the Solidity contract name exactly. No promotional language.
• description ✓ — All claims are substantiated by source: match-phase fees (phaseFee[_phase]), goal points accumulation (_points[trader]), skim split to pot/buyback (_takeSkim), anti-snipe window (_enforceAntiSnipe), pro-rata pot claims (claimPot()). No audit claims, safety guarantees, or marketing language.

All checks pass.

[marktoda]

Bot review verified. GoldenGoalHook — dynamic-fee hook on xlayer. Bitmask 0x10c4 → afterInitialize, beforeSwap, afterSwap, afterSwapReturnsDelta. Desc length 320/500 OK. dynamicFee=true, swapAccess=temporal per bot review. LGTM.