solidity-dev

# Solidity Development Skill Expert-level Solidity smart contract development with emphasis on security patterns, gas optimization, and ERC standard compliance. ## Capabilities - **Secure Coding Patterns**: Implement Checks-Effects-Interactions, reentrancy guards - **Gas Optimization**: Write gas-efficient code using assembly/Yul when appropriate - **NatSpec Documentation**: Generate comprehensive contract documentation - **ERC Standards**: Implement ERC-20, ERC-721, ERC-1155, ERC-4626 compliant tokens - **OpenZeppelin Integration**: Properly use and extend OZ contracts - **Modern Solidity Features**: Leverage 0.8+ features (custom errors, unchecked blocks) - **Upgradeable Contracts**: Implement UUPS and Transparent Proxy patterns ## Security Patterns ### Checks-Effects-Interactions (CEI) ```solidity function withdraw(uint256 amount) external { // CHECKS require(balances[msg.sender] >= amount, "Insufficient balance"); // EFFECTS balances[msg.sender] -= amount; // INTERACTIONS (bool success, ) = msg.sender.call{value: amount}(""); require(success, "Transfer failed"); } ``` ### Custom Errors (Gas Efficient) ```solidity // Instead of require strings error InsufficientBalance(uint256 requested, uint256 available); error Unauthorized(address caller); function withdraw(uint256 amount) external { if (balances[msg.sender] < amount) { revert InsufficientBalance(amount, balances[msg.sender]); } } ``` ### Unchecked Arithmetic ```s...