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PurpleAILAB
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cross-chain

Detect cross-chain vulnerabilities in smart contracts and provide audit checklists.

60|18|Updated Jan 21, 2026
Search Tags:#vulnerability detection#cross-chain#smart contract security#layerzero#web3 security#bridge auditing
One-click install
npx skills add https://github.com/PurpleAILAB/Vigilo --skill cross-chain
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cross-chain
Source: https://github.com/PurpleAILAB/Vigilo/tree/main/packages/claude/skills/vulnerability-patterns/cross-chain
Command: npx skills add https://github.com/PurpleAILAB/Vigilo --skill cross-chain

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the critical security vulnerabilities inherent in cross-chain communication protocols and smart contracts, helping to prevent catastrophic financial losses due to exploits.

Core Features & Use Cases

  • Vulnerability Detection: Identifies common patterns leading to cross-chain exploits, such as missing source validation, replay attacks, and chain-specific code assumptions.
  • Audit Guidance: Provides a structured checklist and severity classification for auditing cross-chain bridges and message-passing systems.
  • Use Case: An auditor can use this Skill to systematically check a new cross-chain bridge implementation for known vulnerabilities before it is deployed, ensuring the safety of user funds.

Quick Start

Analyze the provided smart contract code for cross-chain vulnerabilities using the cross-chain skill.

Frequently Asked Questions about cross-chain

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

FAQPage Schema
How do I detect cross-chain vulnerabilities in smart contracts?▼

Detect cross-chain vulnerabilities by analyzing smart contract code for patterns related to source chain and address validation, replay attacks, message ordering, chain-specific code, and finality assumptions to identify security risks.

What are common cross-chain bridge vulnerabilities to audit before deployment?▼

Common cross-chain bridge vulnerabilities to audit include missing source chain or address validation, replay attacks, incorrect message ordering, flawed chain-specific code assumptions, and violated finality assumptions that can lead to catastrophic fund loss.

How do I audit LayerZero smart contracts for web3 security issues?▼

Audit LayerZero smart contracts for web3 security by systematically checking inter-chain message passing implementations against known vulnerability patterns and applying structured audit checklists with severity classifications.

Can I get a mitigation strategy checklist for cross-chain replay attacks?▼

You can generate a mitigation strategy checklist for cross-chain replay attacks that provides structured audit guidance and severity classification for securing bridge and inter-chain communication implementations.

Does cross-chain vulnerability detection work for finality assumption issues?▼

Cross-chain vulnerability detection works for finality assumption issues by identifying patterns where chain-specific code and finality rules are improperly handled during inter-chain message validation and bridge communication.

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