Blockchain

This skill provides comprehensive Solidity smart contract templates for building DeFi protocols. It includes production-ready examples for staking with reward distribution, automated market makers (AMMs), governance token systems with voting, and flash loan functionality, along with best practices for security and testing.

This skill provides comprehensive documentation and code examples for testing Ethereum smart contracts using Hardhat and Foundry. It covers unit testing patterns, mainnet forking for realistic testing, fuzzing, gas optimization measurement, and CI/CD integration with coverage reporting.

This skill provides comprehensive documentation for implementing NFT standards including ERC-721 and ERC-1155. It covers smart contract development patterns, metadata handling, royalties (EIP-2981), soulbound tokens, dynamic NFTs, and gas optimization with ERC721A. All content is educational Solidity code examples and best practices.

A comprehensive guide to smart contract security for Solidity developers. Covers critical vulnerabilities like reentrancy and integer overflow, provides secure coding patterns using OpenZeppelin contracts, and includes testing strategies and audit preparation guidelines for blockchain applications.