Does this skill support both Hardhat and Foundry?

Yes, it provides comprehensive configurations and test patterns for both the JavaScript-based Hardhat environment and the Solidity-native Foundry (Forge) framework.

Can I test my contracts against real mainnet data?

Absolutely. The skill includes advanced patterns for mainnet forking and account impersonation, allowing you to test how your contracts interact with existing live protocols.

How does this help with gas optimization?

It includes specific patterns for gas-tracking tests and integration with gas reporters to help you measure and minimize the transaction costs of your contract functions.

Does it support automated security testing?

Yes, it implements Foundry fuzzing to test your code against thousands of random inputs and includes checks for common vulnerabilities like unauthorized access and reentrancy.

Web3 Smart Contract Testing

Name: Web3 Smart Contract Testing
Author: HermeticOrmus

byHermeticOrmus

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Security & Testing

Validates Solidity smart contracts using comprehensive Hardhat and Foundry testing frameworks and advanced security patterns.

About

This skill provides a robust toolkit for testing blockchain applications, enabling Claude to implement professional-grade test suites for Solidity smart contracts. It covers the entire testing lifecycle, from basic unit tests and fixtures to advanced strategies like mainnet forking, property-based fuzzing with Foundry, and gas optimization analysis. By integrating these patterns, developers can ensure their DeFi protocols and NFT contracts are secure, gas-efficient, and ready for production deployment with automated coverage reporting and Etherscan verification.

Key Features

1 GitHub stars
Dual-framework support for Hardhat (JavaScript/TypeScript) and Foundry (Solidity)
Mainnet forking and account impersonation for realistic environment testing
Automated gas consumption reporting and optimization analysis
Advanced fuzzing and property-based testing for edge-case discovery
Seamless CI/CD integration for automated testing and coverage reporting

Use Cases

Simulating complex DeFi interactions by forking mainnet state and impersonating whale accounts
Auditing contract security through property-based fuzzing and reentrancy testing
Optimizing contract deployment by comparing gas usage between different implementation patterns

About

Key Features

1 GitHub stars
Dual-framework support for Hardhat (JavaScript/TypeScript) and Foundry (Solidity)
Mainnet forking and account impersonation for realistic environment testing
Automated gas consumption reporting and optimization analysis
Advanced fuzzing and property-based testing for edge-case discovery
Seamless CI/CD integration for automated testing and coverage reporting

Use Cases

Simulating complex DeFi interactions by forking mainnet state and impersonating whale accounts
Auditing contract security through property-based fuzzing and reentrancy testing
Optimizing contract deployment by comparing gas usage between different implementation patterns