Add PumpV4Hook hook on robinhood

[hooklist-generator]

Summary

A factory-gated launch-pool hook that charges a fixed 2% WETH-side fee on every swap, routing fees to a per-pool CreatorFeeShare contract. Only factory-registered pools may initialize or swap; initial liquidity is permanently locked via beforeRemoveLiquidity revert; exact-output swaps are disabled.

Flags

Flag	Value
beforeInitialize	true
afterInitialize	false
beforeAddLiquidity	true
afterAddLiquidity	false
beforeRemoveLiquidity	true
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	allowlist

Warnings

• Submitter-proposed name "PumpV4Hook (EasyA Kickstart)" rejected: the "(EasyA Kickstart)" suffix references an external brand not present in the verified Solidity source. Using "PumpV4Hook".
• Submitter-proposed description rejected: exceeds 500-character limit (698 chars). Using AI-generated description.

Closes #1081

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 16, 2026 12:29pm

[github-actions]

Review: hooks/robinhood/0x14bcc18fdb0e7a427122b9c2f1a40ff7d63eaacc.json

Flags

Address ends in 0xaacc; source confirms PERMISSION_MASK = 0x2acc, meaning the lower 14 bits are 10 1010 1100 1100. All 14 flags match exactly:

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

These also match getHookPermissions() in the source.

Properties

• dynamicFee: false — Correct. Fee is a fixed 2% (FEE_BPS = 200 / BPS_DENOMINATOR = 10_000). No call to updateDynamicLPFee, and _beforeSwap always returns 0 for the fee override slot.
• upgradeable: false — Correct. factory, positionManager, and weth are all immutable. No proxy patterns, no delegatecall, no mutable implementation storage. source_meta.json confirms proxy: false.
• requiresCustomSwapData: false — Correct. _beforeSwap accepts hookData but leaves it unnamed and unused. Swaps execute normally without any hookData.
• vanillaSwap: false — Correct. beforeSwapReturnsDelta and afterSwapReturnsDelta are both true; the hook extracts a real fee from swap input/output and mints it to a CreatorFeeShare contract, materially changing swap economics.
• swapAccess: "allowlist" — Correct. _beforeSwap calls _officialPool, which reverts with UnauthorizedPool unless the pool was previously registered in poolSnapshot by the factory. Unregistered pools cannot be swapped.

Metadata

• verifiedSource: true — Confirmed by source_meta.json (verified: true).
• chainId: 4663 — Matches chains.json for "robinhood".
• name: "PumpV4Hook" — Matches the Solidity contract name and source_meta.json contractName.
• description — All claims are substantiated by source logic: factory gating in _beforeInitialize (sender == factory), fixed 2% WETH-side fee in _beforeSwap/_afterSwap, fee routing to CreatorFeeShare via _depositFeeClaim, permanent liquidity lock (_beforeRemoveLiquidity always reverts with LiquidityLocked), exact-output disabled (amountSpecified >= 0 revert in both swap hooks). No promotional or unsubstantiated language.

All fields verified. Approving.

[platonicsocrates]

Entry looks great and the flags check out. One request: our submitted description was rejected on length and the replacement dropped the product attribution. Could the description be swapped for this version (497 chars)?

Launch-pool fee hook for EasyA Kickstart (kickstart.easya.io), a token launchpad on Robinhood Chain. Only pools registered by the Kickstart factory may initialize or swap; the one-time liquidity seed is permanently locked (removals revert). Charges a fixed 2% fee on the WETH side of every swap via return deltas, minted as ERC-6909 claims to a per-token CreatorFeeShare contract that splits fees 50/50 between token creator and protocol. Exact-output swaps are disabled. Immutable, with no owner.