# Evm Audit Signatures

> Signature vulnerabilities including cross-chain replay, ecrecover pitfalls, EIP-712 domain separator issues, permit edge cases, malleability, and meta-transaction security. Load when the contract uses any off-chain signatures.

- Skill: `austintgriffith/evm-audit-signatures` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add austintgriffith/evm-audit-signatures`
- Raw SKILL.md: https://api.skillmd.com/api/skills/austintgriffith/evm-audit-signatures/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: austintgriffith (https://skillmd.com/u/austintgriffith)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/austintgriffith/evm-audit-signatures

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# EVM Audit — Signature Vulnerabilities
Load when auditing contracts that use ecrecover, EIP-712, permit, or any off-chain signature verification.
## Reference Files
- `references/checklist.md` — Full signature checklist