UitbreidenOS When to activate
- Building automated market makers (AMMs) or DEXes
- Implementing lending/borrowing protocols
- Designing yield farming or liquidity mining strategies
- Creating stablecoin mechanisms or synthetic assets
- Building liquid staking derivatives
When NOT to use
- For simple token transfers or payments
- For centralized exchange backends
- For traditional financial applications
Instructions
- Define protocol type. AMM (Uniswap-style), Lending (Aave-style), Yield (Yearn-style), Stablecoin (Maker-style).
- Model economics. Constant product formula (x*y=k), interest rate model (utilization-based), yield source identification.
- Implement core contracts. Pool, Router, Token, Oracle. Use OpenZeppelin for standard components.
- Design incentive structure. LP rewards, governance tokens, fee distribution, impermanent loss mitigation.
- Security hardening. Oracle selection (Chainlink vs TWAP), flash loan protection, slippage controls, circuit breakers.
- Testing. Fork mainnet tests with Foundry. Simulate flash loan attacks, oracle manipulation, edge cases.
- Deployment. Deterministic deployment (CREATE2), multi-sig ownership, timelock for parameter changes.
Example
// Simplified AMM Pool (constant product)
contract SimplePool {
uint256 public reserveA;
uint256 public reserveB;
function swap(address tokenIn, uint256 amountIn) external returns (uint256 amountOut) {
// 0.3% fee
uint256 amountInWithFee = amountIn * 997;
if (tokenIn == tokenA) {
amountOut = (reserveB * amountInWithFee) / (reserveA * 1000 + amountInWithFee);
reserveA += amountIn;
reserveB -= amountOut;
} else {
amountOut = (reserveA * amountInWithFee) / (reserveB * 1000 + amountInWithFee);
reserveB += amountIn;
reserveA -= amountOut;
}
}
}