web3-solidity-audit-mcp

web3-solidity-audit-mcp is a skill for Claude Code, Codex from Gabson0x/bountyforge. It costs 68 tokens per session (3,208 once invoked), scanned B, original, no licence file.

An MCP server that connects Claude Code with Slither, Aderyn, and SWC security checks for Solidity code. MCP is a way for an AI coding tool to call external tools.

In plain words
What is it for?
It helps inspect Solidity files, detect known weakness patterns, check DeFi-specific issues, create invariants, and run checks in CI/CD.
Why use it?
It brings several smart-contract analysis tools and DeFi checks into one audit workflow.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It helps inspect Solidity files, detect known weakness patterns, check DeFi-specific issues, create invariants, and run checks in CI/CD.

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Install with agentmods
npx agentmods add skills/gabson0x/bountyforge/web3-solidity-audit-mcp
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 Gabson0x/bountyforge --skill web3-solidity-audit-mcp
Clone the repo
git clone --depth 1 https://github.com/Gabson0x/bountyforge

Made for: Claude Code, Codex.

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-solidity-audit-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/gabson0x/bountyforge/web3-solidity-audit-mcp/github.svg)](https://agentmods.dev/skills/gabson0x/bountyforge/web3-solidity-audit-mcp)
Your own site
<a href="https://agentmods.dev/skills/gabson0x/bountyforge/web3-solidity-audit-mcp"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/web3-solidity-audit-mcp/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-solidity-audit-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/gabson0x/bountyforge/web3-solidity-audit-mcp"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/web3-solidity-audit-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,208 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 3 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 $0.00068 $0.03208
Opus 5.5 $0.00027 $0.01283
Sonnet 5.5 $0.00014 $0.00642
Haiku 4.5 $0.00007 $0.00321

Measured 1mo ago against content hash ee409a7582de, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

web3-solidity-audit-mcp scanned grade B with 3 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 1mo 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo install -m 755 /tmp/aderyn /usr/local/bin/aderyn

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Downloads and executes remote codemediumSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -L https://foundry.paradigm.xyz | bash && foundryup

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -L https://foundry.paradigm.xyz | bash && foundryup
skills/web3/web3-solidity-audit-mcp/SKILL.md · 401 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. 1mo ago Changed · +2 lines ee409a7582de
  2. 1mo ago First seen · 399 lines · 68 tokens per session scan B c83469306520

Subscribe to this mod's changes

web3-solidity-audit-mcp is a skill published in the GitHub repository Gabson0x/bountyforge (455 stars, last pushed 1mo ago), with no licence file. It adds 68 tokens to every session and 3,208 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-14.

Related

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