DeFi AMM Security Critical vulnerability patterns and hardened implementations for Solidity AMM contracts, LP vaults, and swap functions. When to Use - Writing or auditing a Solidity AMM or liquidity-pool contract - Implementing swap, deposit, withdraw, mint, or burn flows that hold token balances - Reviewing any contract that uses in share or reserve math - Adding fee setters, pausers, oracle updates, or other admin functions to a DeFi protocol How It Works Use this as a checklist-plus-pattern library. Review every user entrypoint against the categories below and prefer the hardened examples…