blockchain-web3

blockchain-web3 is a plugin for Claude Code from EngineerWithAI/engineerwith-agents. Its manifest loads nothing; the 4 skills it bundles cost 170 tokens per session together, scanned A, a copy of blockchain-web3, MIT.

A Web3 development toolkit for building Solidity smart contracts, decentralized finance systems, NFT platforms, and blockchain applications. Smart contracts are programs that run on a blockchain.

In plain words
What is it for?
Use it to develop smart contracts, DeFi protocols, NFT platforms, and other Web3 applications.
Why use it?
It provides development patterns for blockchain projects, where code and transactions must work within decentralized networks.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add EngineerWithAI/engineerwith-agents
agentmods
npx agentmods add plugins/engineerwithai/engineerwith-agents/blockchain-web3
Clone the repo
git clone --depth 1 https://github.com/EngineerWithAI/engineerwith-agents

Made for: Claude Code.

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 blockchain-web3

README.md
[![agentmods](https://agentmods.dev/badge/plugins/engineerwithai/engineerwith-agents/blockchain-web3.svg)](https://agentmods.dev/plugins/engineerwithai/engineerwith-agents/blockchain-web3)
Your own site
<a href="https://agentmods.dev/plugins/engineerwithai/engineerwith-agents/blockchain-web3"><img src="https://agentmods.dev/badge/plugins/engineerwithai/engineerwith-agents/blockchain-web3.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 4 skills cost 170 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin 81% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

blockchain-web3 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 2d 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.

Origin

This is a copy

81% identical to blockchain-web3 — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude-plugin/marketplace.json#blockchain-web3 · 34 lines

What it actually says

{
  "name": "blockchain-web3",
  "source": "./plugins/blockchain-web3",
  "description": "Smart contract development with Solidity, DeFi protocol implementation, NFT platforms, and Web3 application architecture",
  "version": "1.2.1",
  "author": {
    "name": "Mike Mayer",
    "url": "https://github.com/EngineerWithAI"
  },
  "homepage": "https://github.com/EngineerWithAI/engineerwith-agents",
  "repository": "https://github.com/EngineerWithAI/engineerwith-agents",
  "license": "MIT",
  "keywords": [
    "blockchain",
    "web3",
    "solidity",
    "ethereum",
    "defi",
    "nft",
    "smart-contracts"
  ],
  "category": "blockchain",
  "strict": false,
  "commands": [],
  "agents": [
    "./agents/blockchain-developer.md"
  ],
  "skills": [
    "./skills/defi-protocol-templates",
    "./skills/nft-standards",
    "./skills/solidity-security",
    "./skills/web3-testing"
  ]
}
Contents

What it installs

The manifest is a name and a version. 4 skills travel with it, and installing the plugin installs all of them — 170 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside marketplace.json#blockchain-web3 in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 34 lines scan A 8838f5551d6c

Subscribe to this mod's changes

blockchain-web3 is a plugin published in the GitHub repository EngineerWithAI/engineerwith-agents (4 stars, last pushed 7mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 81% identical to blockchain-web3, differing in 8 lines, and is treated as a copy.