setup-solidity-contracts

setup-solidity-contracts is a skill for Claude Code from OpenZeppelin/openzeppelin-skills. It costs 73 tokens per session (640 once invoked), scanned C, original, AGPL-3.0.

A setup guide for Solidity smart contract projects that use OpenZeppelin Contracts, a reusable library of reviewed contract components. It covers the Hardhat and Foundry development tools and their import configuration.

In plain words
What is it for?
Use it to create a Hardhat or Foundry project, install OpenZeppelin Contracts, configure Foundry remappings, and write the correct Solidity imports.
Why use it?
It removes the guesswork from starting a project and adding the library correctly. It also explains Foundry remappings, which tell the compiler where imported packages are stored.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the openzeppelin-skills plugin — 11 skills shipped together

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.

agentmods
npx agentmods add skills/openzeppelin/openzeppelin-skills/setup-solidity-contracts
Any agent
npx skills add OpenZeppelin/openzeppelin-skills --skill setup-solidity-contracts
Clone the repo
git clone --depth 1 https://github.com/OpenZeppelin/openzeppelin-skills

Made for: Claude Code.

Or install openzeppelin-skills, the plugin that ships this one along with the rest of its 11 skills.

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 setup-solidity-contracts

README.md
[![agentmods](https://agentmods.dev/badge/skills/openzeppelin/openzeppelin-skills/setup-solidity-contracts.svg)](https://agentmods.dev/skills/openzeppelin/openzeppelin-skills/setup-solidity-contracts)
Your own site
<a href="https://agentmods.dev/skills/openzeppelin/openzeppelin-skills/setup-solidity-contracts"><img src="https://agentmods.dev/badge/skills/openzeppelin/openzeppelin-skills/setup-solidity-contracts.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 640 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
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 $0.00073 $0.00640
Opus 5 $0.00036 $0.00320
Sonnet 5 $0.00015 $0.00128
Haiku 4.5 $0.00007 $0.00064

Measured 6d ago against content hash 1173e7348620, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

setup-solidity-contracts scanned grade C with 2 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.

Downloads and executes remote codehighSupply 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

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
skills/setup-solidity-contracts/SKILL.md · 85 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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 · 73 tokens per session scan C 1173e7348620

Subscribe to this mod's changes

setup-solidity-contracts is a skill published in the GitHub repository OpenZeppelin/openzeppelin-skills (208 stars, last pushed 5d ago), licensed AGPL-3.0. It adds 73 tokens to every session and 640 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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