How does this skill help prevent reentrancy?

It provides specific code patterns for the Checks-Effects-Interactions (CEI) method and demonstrates how to correctly integrate OpenZeppelin's ReentrancyGuard to lock functions against recursive calls.

Is it compatible with modern Solidity versions?

Absolutely. The skill covers built-in overflow protection found in Solidity 0.8+ as well as legacy patterns like SafeMath for older contract versions.

Can it help with gas optimization?

Yes, it includes advanced techniques like variable packing in storage slots and using calldata for function arguments to significantly reduce transaction costs while maintaining security.

Does this replace a professional security audit?

No, while it provides comprehensive checklists and identifies common vulnerabilities, it is intended to be used during development to prepare for a professional audit, not replace one.

Solidity Security Expert

Name: Solidity Security Expert
Author: HermeticOrmus

byHermeticOrmus

セキュリティとテスト

Secures Ethereum smart contracts by implementing industry-standard patterns and preventing common vulnerabilities like reentrancy and access control flaws.

概要

This skill empowers Claude to act as a security-focused Solidity developer and auditor, providing deep expertise in smart contract vulnerabilities and mitigation strategies. It covers critical security patterns such as Checks-Effects-Interactions, Pull-over-Push payments, and circuit breakers, while also offering guidance on gas optimization and comprehensive security testing using frameworks like Hardhat. Whether you are building complex DeFi protocols or simple NFT contracts, this skill ensures your blockchain code is robust, efficient, and resistant to common attack vectors like front-running and integer overflows.

主な機能

Reentrancy prevention using CEI pattern and ReentrancyGuard
Front-running and integer overflow/underflow mitigation
Robust access control and role-based permission implementation
Security testing frameworks and audit preparation checklists
Gas optimization through storage packing and calldata patterns
0 GitHub stars

ユースケース

Optimizing contract gas efficiency without compromising security integrity
Auditing existing Solidity contracts for known vulnerabilities and logic flaws
Developing secure-by-design DeFi protocols and smart contract systems

概要

主な機能

Reentrancy prevention using CEI pattern and ReentrancyGuard
Front-running and integer overflow/underflow mitigation
Robust access control and role-based permission implementation
Security testing frameworks and audit preparation checklists
Gas optimization through storage packing and calldata patterns
0 GitHub stars

ユースケース

Optimizing contract gas efficiency without compromising security integrity
Auditing existing Solidity contracts for known vulnerabilities and logic flaws
Developing secure-by-design DeFi protocols and smart contract systems