web3-auditor

web3-auditor is a skill for Cursor from H-mmer/pentest-agents. It costs 51 tokens per session (749 once invoked), scanned A, original, no licence file.

A security auditor for smart contracts and Web3 applications, including Solidity code and decentralised finance (DeFi) systems. It also supports proof-of-concept work with Foundry, a Solidity development and testing toolkit.

In plain words
What is it for?
Use it to audit smart contracts and DeFi projects for bug-bounty programmes such as Immunefi and Code4rena.
Why use it?
It helps find blockchain-specific bugs and attack patterns that ordinary web security checks do not cover.

Skill for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it to audit smart contracts and DeFi projects for bug-bounty programmes such as Immunefi and Code4rena.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/h-mmer/pentest-agents/agent-web3-auditor
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add H-mmer/pentest-agents --skill agent-web3-auditor
Clone the repo
git clone --depth 1 https://github.com/H-mmer/pentest-agents

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for web3-auditor

README.md
[![agentmods](https://agentmods.dev/badge/skills/h-mmer/pentest-agents/agent-web3-auditor/github.svg)](https://agentmods.dev/skills/h-mmer/pentest-agents/agent-web3-auditor)
Your own site
<a href="https://agentmods.dev/skills/h-mmer/pentest-agents/agent-web3-auditor"><img src="https://agentmods.dev/badge/skills/h-mmer/pentest-agents/agent-web3-auditor/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for web3-auditor

Your own site · 80×15
<a href="https://agentmods.dev/skills/h-mmer/pentest-agents/agent-web3-auditor"><img src="https://agentmods.dev/badge/skills/h-mmer/pentest-agents/agent-web3-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 749 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00051 $0.00749
Opus 5 $0.00026 $0.00375
Sonnet 5 $0.00010 $0.00150
Haiku 4.5 $0.00005 $0.00075

Measured 6d ago against content hash 8adecfaefe3e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

web3-auditor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

providers/cursor/.cursor/skills/agent-web3-auditor/SKILL.md · 85 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 85 lines · 51 tokens per session scan A 8adecfaefe3e

Subscribe to this mod's changes

web3-auditor is a skill published in the GitHub repository H-mmer/pentest-agents (890 stars, last pushed 2mo ago), with no licence file. It adds 51 tokens to every session and 749 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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