skills.rest
PlamenTSV
PlamenTSVCOMMUNITY
Explore all skills by this author →
𝕏@p_tsanevGitHub

cross-chain-message-integrity

Audit inbound cross-chain messages for authentication and replay protection.

276|56|Updated Mar 16, 2026
Search Tags:#blockchain#cross-chain#bridge#security-audit#smart-contract#message-integrity
One-click install
npx skills add https://github.com/PlamenTSV/plamen --skill cross-chain-message-integrity
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cross-chain-message-integrity
Source: https://github.com/PlamenTSV/plamen/tree/main/agents/skills/evm/cross-chain-message-integrity
Command: npx skills add https://github.com/PlamenTSV/plamen --skill cross-chain-message-integrity

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Audits inbound cross-chain messages for integrity, authenticity, and safe processing across bridges.

Core Features & Use Cases

  • Evaluates endpoint authentication, origin verification, replay protection, and payload validation for inbound messages.
  • Ensures correct sequencing and handles potential re-orgs during cross-chain delivery.
  • Use Case: security review for L2-L1 bridge interactions and cross-chain messaging protocols.

Quick Start

Instantiate this Thought-template before use to audit inbound cross-chain messages and enforce authentication, replay protection, and payload validation.

Frequently Asked Questions about cross-chain-message-integrity

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

FAQPage Schema
How do I audit inbound cross-chain messages for bridge security?▼

Auditing inbound cross-chain messages requires verifying endpoint authentication, origin verification, replay protection, and payload validation to ensure bridge payloads are safely processed. This skill automates those checks for multi-chain smart contracts.

Does this security audit work with LayerZero, Wormhole, and Axelar bridges?▼

Yes, this security audit works with LayerZero, Wormhole, and Axelar bridges. It evaluates inbound message handling, endpoint access, and trusted peer mappings specifically for smart contracts receiving cross-chain payloads across these multi-chain setups.

What is replay protection for cross-chain bridge messages?▼

Replay protection for cross-chain bridge messages is a mechanism enforcing unique nonces and trusted peer mappings to prevent duplicate message execution. It safeguards multi-chain smart contracts against malicious replays and message misrouting during inbound delivery.

How do I validate payloads and origins for L2 to L1 bridge interactions?▼

Validate payloads and origins for L2 to L1 bridge interactions by checking endpoint authentication, enforcing unique nonces, and verifying trusted peer mappings. This process ensures correct sequencing and authenticates message delivery during cross-chain security reviews.

When do I need to check endpoint access and trusted peer mappings for cross-chain messages?▼

You need to check endpoint access and trusted peer mappings for cross-chain messages whenever a smart contract receives inbound payloads from multi-chain bridges. This prevents unauthorized origin access, malformed payloads, and replay attacks during message delivery.

Related Skills

Explore More Software Engineering Skills→
stanahstanah

solidity-crosschain

Design cross-chain bridges and messaging patterns for Solidity projects.

Community
Advanced
krishnakanthb13krishnakanthb13
41

security_audit

Audit codebases for OWASP Top 10 vulnerabilities and generate SECURITY.md reports.

Community
Advanced
EojEdredEojEdred

bridge-monitor

Monitor cross-chain bridge events between Primearc Core Chain and external chains.

Community
Intermediate
rajyeole6rajyeole6

agency-blockchain-security-auditor

Audit smart contracts for reentrancy, oracle manipulation, and access control vulnerabilities.

Community
Advanced