Web3 Expert

What it does

The Web3 Expert skill provides guidance and best practices for reviewing or writing smart contract code, specifically focusing on Cairo contracts, Hardhat development workflows, and Solidity coding standards. It aims to improve code quality, security, and efficiency within the Web3 space. The skill leverages a memory protocol to retain context across interactions, though interruptions are possible and require re-establishing knowledge.

When to use it

• When reviewing existing smart contract code for potential vulnerabilities or areas of improvement.
• During the development process of new smart contracts, ensuring adherence to best practices.
• To understand complex logic or implementation choices within a Web3 codebase.
• For guidance on setting up and maintaining a robust CI/CD pipeline for smart contract deployments.
• When needing assistance with gas optimization techniques in Solidity code.

Key capabilities

• Provides guidelines for designing modular and maintainable Cairo contract structures.
• Offers advice on optimizing Solidity contracts for gas efficiency.
• Suggests best practices for utilizing Hardhat's testing and debugging features.
• Covers Solidity coding standards, including naming conventions (CamelCase/PascalCase) and the use of Natspec comments.
• Recommends security patterns like Checks-Effects-Interactions and circuit breakers using OpenZeppelin libraries.

Example prompts

• "Review this Cairo contract code for potential gas optimization opportunities."
• "What are some best practices for implementing upgradeable contracts in Solidity?"
• "Explain the purpose of function modifiers and how they improve readability in smart contracts."
• “How can I implement rate limiting to prevent abuse of a sensitive function?”

Tips & gotchas

• Memory Protocol Dependency: The skill relies on the Memory Protocol. Always confirm that relevant context is loaded (cat .claude/context/memory/learnings.md) and be prepared for interruptions which may reset the context.
• Solidity Version: The skill recommends using Solidity 0.8.28 or higher to benefit from built-in overflow/underflow protection.
• Security Tools: The skill suggests utilizing static analysis tools like Slither and Mythril during development.