Add MofoHook (mofo launchpad) hook on robinhood

[hooklist-generator]

Summary

A launchpad hook that enforces factory-only pool creation and locker-only liquidity additions. It applies a dynamic LP fee with a time-decaying anti-sniper fee (99% → normal) in the first 3 seconds after launch, and reverts any swap that would push the pool price below its birth price.

Flags

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

Properties

Property	Value
dynamicFee	true
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

• Submitter-proposed description rejected: exceeds 500-character limit and contains unverifiable claims (specific fee for $MOFO token, liquidity locked forever, external verification). Using AI-generated description.

Closes #10456

[github-actions]

Review: hooks/robinhood/0x665c52d02ddc506dfb3158c100edc77fe412a8c0.json

Flags

Last 2 bytes of address: 0xa8c0 = 1010 1000 1100 0000. All 14 permission bits match exactly:

• beforeInitialize=true, beforeAddLiquidity=true, beforeSwap=true, afterSwap=true — all set
• All others false

Confirmed also by Hooks.validateHookPermissions(...) in the constructor with identical settings.

Properties

• dynamicFee: true ✓ — beforeInitialize requires LPFeeLibrary.isDynamicFee(key.fee), and beforeSwap returns fee | LPFeeLibrary.OVERRIDE_FEE_FLAG using currentFeePips(), which applies a time-decaying anti-sniper fee.

• upgradeable: false ✓ — All state variables (poolManager, factory, locker, openingBuyer) are immutable. No proxy patterns, no delegatecall to mutable addresses, no SELFDESTRUCT.

• requiresCustomSwapData: false ✓ — beforeSwap and afterSwap both ignore the hookData (bytes calldata) parameter entirely. The fee is derived from block.timestamp and msg.sender.

• vanillaSwap: false ✓ — dynamicFee is true and afterSwap can revert with BelowBirthPrice, meaning swaps do not behave identically to a standard v4 pool.

• swapAccess: "none" ✓ — beforeSwap does not reject any caller; it returns a fee override for all swappers. The afterSwap price-floor check is a price constraint, not caller-based access control.

Metadata

• chainId: 4663 ✓ — matches robinhood in chains.json.

• verifiedSource: true ✓ — confirmed by source_meta.json.

• name: "MofoHook (mofo launchpad)" ✓ — contract name is MofoHook; (mofo launchpad) is an acceptable project qualifier.

• description ✓ — Every technical claim is substantiated:

  • "factory-only pool creation" → beforeInitialize reverts if sender != factory
  • "locker-only liquidity additions" → beforeAddLiquidity reverts if sender != locker
  • "dynamic LP fee with a time-decaying anti-sniper fee (99% → normal) in the first 3 seconds" → SNIPER_START_PIPS = 990_000, SNIPER_SECONDS = 3, fee interpolation in currentFeePips()
  • "reverts any swap that would push the pool price below its birth price" → afterSwap checks sqrtP vs birthSqrtPriceX96

  No promotional, audit, or endorsement language present.

All checks pass.