# Web3 Auditor

> Use when smart contract and DeFi security auditing for maximum bounty payouts. Use when auditing Solidity/Vyper contracts, testing DeFi protocols, hunting web3 vulnerabilities, or preparing Immunefi submissions.

- Skill: `oyi77/web3-auditor` (Agent Skill)
- Install (CLI): `npx skillmds add oyi77/web3-auditor`
- Raw SKILL.md: https://api.skillmd.com/api/skills/oyi77/web3-auditor/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- License: Apache-2.0
- Author: oyi77 (https://skillmd.com/u/oyi77)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/oyi77/web3-auditor

---


# Web3 Auditor

## Overview

Cybersecurity skill for web3 auditor. Follows industry best practices and security standards.

## When to Use

**Trigger phrases:**
- "web3 auditor"
- "Auditing smart contracts for bug bounty programs"
- "Testing DeFi protocols for economic exploits"
- "Hunting on Immunefi, HackenProof, Code4rena"


- Auditing smart contracts for bug bounty programs
- Testing DeFi protocols for economic exploits
- Hunting on Immunefi, HackenProof, Code4rena
- Reviewing token contracts for rug pull indicators
- Analyzing upgrade mechanisms and proxy patterns


## When NOT to Use

- When you lack proper authorization for testing
- For production systems without change management
- When the task requires legal or compliance expertise beyond technical scope


## Prerequisites

- Access to relevant log sources and security tools
- Understanding of auditor fundamentals
- Appropriate permissions for data access and tool operation

## Workflow

```python
# Example: IOC detection
import re

IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    "hash_md5": r"\b[a-f0-9]{32}\b",
    "hash_sha256": r"\b[a-f0-9]{64}\b",
}

def extract_iocs(text: str) -> dict:
    return {k: re.findall(v, text) for k, v in IOC_PATTERNS.items()}
```

1. **Define Objectives** — Clarify the goals and scope for auditor.
2. **Gather Resources** — Collect tools, data, and access needed for auditor.
3. **Execute Process** — Carry out auditor operations methodically.
4. **Verify Quality** — Check results against acceptance criteria.
5. **Document Outcomes** — Record findings, decisions, and next steps.

## Tools

- **Analysis Platform** — Data processing and visualization
- **Collaboration Tools** — Team coordination and knowledge sharing


## Process

1. **Prepare** — Gather requirements, verify prerequisites, set up environment
1. **Execute** — Run web3 auditor workflow with configured parameters
1. **Verify** — Validate output meets requirements, document results

## Verification

- [ ] All auditor procedures executed completely and documented
- [ ] Findings validated against multiple data sources
- [ ] False positives identified and filtered
- [ ] Results documented with evidence and timestamps
- [ ] Recommendations provided with risk-based prioritization

## Anti-Rationalization Table

| Rationalization | Reality |
|---|---|
| "We are too small to be targeted" | Automated attacks target everyone. Size does not matter. |
| "Security slows us down" | A breach slows you down 100x more. Build security in from the start. |
| "We will fix it after launch" | Vulnerabilities in production are exploited within hours. Fix before deploy. |