Imported from sickn33/agentic-awesome-skills (
skills/cross-chain-relayer-audit/SKILL.md). Install upstream withnpx skills add sickn33/agentic-awesome-skills --skill cross-chain-relayer-audit. Copyright stays with the author.
Cross-Chain Relayer Security Audit
What it is: Audits cross-chain message passing protocols, cryptographic commitment trees, and validator quorum consensus for cross-chain relayers.
Overview
Provides a standardized, auditable framework and data model for Cross-Chain Relayer Security Audit operations across distributed engineering and decentralized application systems.
When to Use This Skill
- When formalizing architectural contracts, security invariants, or operational limits for Cross-Chain Relayer Security Audit.
- When cross-functional review is required between protocol developers, smart contract auditors, and AI engineering agents.
- When generating reproducible CSV, SQL DDL, JSON Schema, and Notion property registers for tracking compliance.
How It Works
- Define the parameters, thresholds, and identity bindings required for the target operational register.
- Select appropriate boundary enforcement values from validated enum select sets.
- Export standardized artifacts (CSV table, SQL DDL, JSON Schema) to integrate into validation CI pipelines.
Field Reference
| # | Field Name | Type | SQL Type | JSON Schema Type | Notion Property Type | Example Value |
|---|---|---|---|---|---|---|
| 1 | Relayer Audit ID | id |
SERIAL PRIMARY KEY |
integer |
Text | REL-001 |
| 2 | Source Chain Domain | text |
VARCHAR(32) |
string |
Text | Ethereum Sepolia |
| 3 | Destination Chain Domain | text |
VARCHAR(32) |
string |
Text | Stellar Testnet |
| 4 | Message Hash Verification | select |
VARCHAR(32) |
string |
Select | Keccak256 Verified |
| 5 | Replay Protection Nonce Check | select |
VARCHAR(32) |
string |
Select | Enforced Strict Sequence |
| 6 | Validator Quorum Threshold | text |
VARCHAR(16) |
string |
Text | 5-of-7 Quorum |
| 7 | Slashing Condition Active | select |
VARCHAR(16) |
string |
Select | Yes |
| 8 | Withdrawal Proof Standard | select |
VARCHAR(64) |
string |
Select | Merkle Patricia Trie Proof |
| 9 | Finality Confirmation Blocks | number |
INTEGER |
number |
Number | 32 |
| 10 | Bridge Security Posture | select |
VARCHAR(32) |
string |
Select | Verified Secure |
| 11 | Audit Stamp Date | date |
DATE |
string, format: date |
Date | 2026-10-01 |
Select Options
Message Hash Verification
Keccak256 Verified | SHA256 Verified | Invalid Hash
Replay Protection Nonce Check
Enforced Strict Sequence | Bitmask Window | Unchecked
Slashing Condition Active
Yes | No
Withdrawal Proof Standard
Merkle Patricia Trie Proof | ZK-SNARK Validity Proof | Light Client Header
Bridge Security Posture
Verified Secure | Under Audit | Vulnerable Finding
Relations
Audit Reference-> links to the formal review documentation or test repository.Target Architecture-> links to the deployed contract or autonomous agent runtime component.
Examples
Prompt
How do I configure and track Cross-Chain Relayer Security Audit for our production environment?
Recommended Next Step
Generate the unified field schema, SQL DDL migration, and JSON validation schema to register into your system catalog.
Workflow: Define criteria -> Run automated verification -> Record baseline -> Monitor invariants.
Best Practices
- Enforce strict typing on numerical bounds and currency amounts; avoid unstructured free-text fields for critical states.
- Re-run validation test suites on every state-altering commit or parameter change.
- Keep example data synthetic and isolated from production cryptographic keys or private endpoints.
Limitations
- Provides architectural specifications, data models, and verification schemas; does not execute direct transaction signing without authorized external tooling.
- Requires network connectivity and valid RPC credentials when querying on-chain states.
Security & Safety Notes
- All parameters declare
risk: safe. No unauthorized state modification or privileged credential access is performed. - Use synthetic dummy keys and mock addresses in test suites and local verification scripts.
Common Pitfalls
- Problem: Mismatched decimal precision between contract runtime and database register. Solution: Always verify decimals using the explicit field mapping in this reference.
- Problem: Missing authorization checks prior to state update. Solution: Cross-validate against the Security Audit register before deployment.
Related Skills
- @smart-contract-formal-verification - verifies state invariants mathematically.
- @web3-rate-limiting-circuit-breaker - provides operational guardrails and threshold breakers.
- @stellar-anchor-integration - covers SEP-10 and SEP-24 anchor compliance flows.
Reusable Prompt
I want to establish a verified Cross-Chain Relayer Security Audit register for our production protocol.
Guide me through the required field parameters and output the corresponding SQL DDL and JSON Schema.
