Add Friar hook on robinhood

[hooklist-generator]

Summary

A dynamic LP fee hook that tracks per-pool swap volatility using a volatility accumulator with configurable filter and decay periods. On each swap, the accumulator updates based on tick movement and computes a fee that surges with volatility and decays afterward, hard-capped at a maximum, returned as a beforeSwap LP fee override with zero delta.

Flags

Flag	Value
beforeInitialize	false
afterInitialize	true
beforeAddLiquidity	false
afterAddLiquidity	false
beforeRemoveLiquidity	false
afterRemoveLiquidity	false
beforeSwap	true
afterSwap	false
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 did not provide a name. Using AI-derived "Friar".
• Submitter-proposed description rejected: contains an external URL and deployment-specific parameter claims (base fee at tickSpacing 100) not verifiable from the source code. Using AI-generated description.

Closes #1077

[vercel]

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 15, 2026 3:44pm

[github-actions]

Review: hooks/robinhood/0xfeda24f0d3805170e7566ce617cfba01ce05d080.json

Address Flags

The address ends in 0xd080. Masking to 14 bits: 0xd080 & 0x3FFF = 0x1080 = 0001 0000 1000 0000.

• Bit 12 → afterInitialize: true ✓
• Bit 7 → beforeSwap: true ✓
• All other bits = 0 ✓

Flags in the hook file match the address bitmask exactly.

Source Code Verification

Contract name Friar confirmed. getHookPermissions() declares afterInitialize: true and beforeSwap: true only — consistent with the address and hook file.

Properties

Property	Claimed	Verified
dynamicFee	true	✓ beforeSwap returns fee | LPFeeLibrary.OVERRIDE_FEE_FLAG; afterInitialize enforces isDynamicFee()
upgradeable	false	✓ All config params are immutable; no proxy, no delegatecall, no admin functions
requiresCustomSwapData	false	✓ beforeSwap accepts but never reads bytes calldata hookData
vanillaSwap	false	✓ Correct — dynamicFee is true, so must be false
swapAccess	"none"	✓ beforeSwap has only onlyPoolManager (pool manager authentication), no swap-caller access control

Metadata

• name: "Friar" — matches contract name and NatSpec @title Friar ✓
• chainId: 4663 — matches robinhood in chains.json ✓
• verifiedSource: true — matches verified: true in source_meta.json ✓
• description — accurately describes the volatility accumulator mechanism (filter/decay windows, tick-based accumulator, fee override). No marketing or audit language ✓

All fields are correct.