Design Patterns MCP Server

{ "id": "constant-product-amm", "name": "Constant Product AMM", "category": "DeFi AMM", "description": "Uniswap V2 x * y = k formula for DEX Problem: Decentralized exchange without order books", "when_to_use": "Constant product maintains liquidity invariant", "benefits": "Simple, always liquid, permissionless, proven", "drawbacks": "Impermanent loss, slippage, capital inefficiency", "use_cases": "Token swaps, price discovery, DEX, liquidity pools", "complexity": "Medium", "tags": [ "defi", "amm", "dex", "uniswap", "liquidity" ], "examples": { "solidity": { "language": "solidity", "code": "function swap(uint256 amountIn) external {\n uint256 amountInWithFee = amountIn * 997; // 0.3% fee\n uint256 numerator = amountInWithFee * reserveOut;\n uint256 denominator = (reserveIn * 1000) + amountInWithFee;\n uint256 amountOut = numerator / denominator;\n}" } } }