# Evm Audit Chain Specific

> Chain-specific EVM quirks for Arbitrum, Optimism, Base, zkSync, Blast, BNB, Berachain and other L2s. Covers block.number behavior, sequencer downtime, address aliasing, retryable tickets, opcode differences, gas fee variations, and PUSH0 support. Load when deploying to any non-mainnet EVM chain.

- Skill: `austintgriffith/evm-audit-chain-specific` (Agent Skill, multi-file: 5 files)
- Install (CLI): `npx skillmds@latest add austintgriffith/evm-audit-chain-specific`
- Raw SKILL.md: https://api.skillmd.com/api/skills/austintgriffith/evm-audit-chain-specific/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-chain-specific

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# EVM Audit — Chain-Specific Vulnerabilities
Load when auditing contracts deploying to Arbitrum, Optimism, Base, zkSync, Blast, BNB, or any L2.
## Reference Files
- `references/checklist.md` — Full chain-specific checklist