solidity-security

Identify and mitigate common Solidity security vulnerabilities in smart contracts.

2|Updated Apr 7, 2026
One-click install
npx skills add https://github.com/mochi-minds/mochiminds --skill solidity-security-mochi-minds
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: solidity-security
Source: https://github.com/mochi-minds/mochiminds/tree/main/.claude/skills/solidity-security
Command: npx skills add https://github.com/mochi-minds/mochiminds --skill solidity-security-mochi-minds

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Secure smart contracts require robust patterns to prevent common vulnerabilities and ensure predictable behavior in deployments. This guide consolidates critical security principles, practical examples, and auditing fundamentals to help developers build safer blockchain applications.

Core Features & Use Cases

  • Reentrancy protection and CEI (checks-effects-interactions) implementation in contract methods.
  • Input validation, access control, and emergency stop mechanisms to guard critical functions.
  • Front-running mitigation, overflow/underflow awareness, and gas-optimization practices that preserve security.
  • Audit preparation and testing practices to facilitate professional security reviews.

Quick Start

Apply the CEI pattern and defensive patterns to a new or existing contract to prevent common vulnerabilities.

Frequently Asked Questions about solidity-security

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent reentrancy attacks in Solidity smart contracts?

Implement the Checks-Effects-Interactions pattern to prevent reentrancy in Solidity smart contracts by ensuring all state changes execute before any external calls to untrusted contracts.

What is the Checks-Effects-Interactions pattern for secure smart contract development?

The Checks-Effects-Interactions pattern is a Solidity security practice that validates inputs first, updates contract state second, and interacts with external contracts last to prevent reentrancy vulnerabilities.

How do I implement access control and emergency stop mechanisms in DeFi contracts?

Implement access control and emergency stop mechanisms in DeFi contracts by applying restrictive modifiers to critical functions, guarding against unauthorized execution and enabling pausing during vulnerabilities.

Does this approach cover front-running mitigation and overflow protection for NFT contracts?

Yes, this approach covers front-running mitigation, overflow and underflow awareness, and input validation to secure NFT contracts and token ecosystems against common vulnerabilities.

What's the best way to prepare a Solidity contract for a professional security audit?

The best way to prepare for a Solidity security audit is to apply defensive patterns, enforce input validation, and conduct thorough testing practices to identify vulnerabilities before professional review.

Why should I consider gas optimization during smart contract security reviews?

You should consider gas optimization during smart contract security reviews because efficient execution patterns preserve security constraints and prevent out-of-gas vulnerabilities in DeFi and token ecosystems.