uniswap-v4 by hairyf/blockchain-master

Skill based on Uniswap v4 Core (Uniswap/v4-core), generated at 2026-02-09.

Uniswap v4 is an AMM with a singleton PoolManager: all pool state lives in one contract. Interactions go through unlock → unlockCallback, where callers perform swaps, liquidity changes, and donations, then settle balance deltas before the callback returns. Pools can attach hooks for lifecycle callbacks (initialize, add/remove liquidity, swap, donate).

Core References

Topic	Description	Reference
Architecture	Singleton, unlock/callback flow, delta settlement	core-architecture
Unlock callback	IUnlockCallback, when to use unlock, security	core-unlock-callback
Pool actions	initialize, swap, modifyLiquidity, donate, take, settle, sync, mint, burn, clear	core-pool-actions
Types	PoolKey, PoolId, Currency, BalanceDelta, ModifyLiquidityParams, SwapParams	core-types

Features

Hooks

Topic	Description	Reference
Hooks	IHooks lifecycle, address-based flags, before/after callbacks	features-hooks