Skill

setup-solidity-contracts

Sets up Solidity smart contract projects with OpenZeppelin Contracts using Hardhat or Foundry. Covers project init, dependency installs, remappings, and import conventions.

Node

Rust

Bash

devops

deployment

npx claudepluginhub openzeppelin/openzeppelin-skills --plugin openzeppelin-skills

Tool Access

This skill uses the workspace's default tool permissions.

Preview

For existing projects, detect the framework by looking for `hardhat.config.*` (Hardhat) or `foundry.toml` (Foundry). For new projects, ask the user which framework they prefer.

SKILL.md

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Stars161

Forks20

Last CommitMar 4, 2026

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Solidity Setup

For existing projects, detect the framework by looking for hardhat.config.* (Hardhat) or foundry.toml (Foundry). For new projects, ask the user which framework they prefer.

Hardhat Setup

Initialize project (only if starting a new project)

npx hardhat init        # Hardhat v2
npx hardhat --init      # Hardhat v3

Install OpenZeppelin Contracts:

npm install @openzeppelin/contracts

If using upgradeable contracts, also install the upgradeable variant:

npm install @openzeppelin/contracts-upgradeable

Foundry Setup

Install Foundry

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

Initialize project (only if starting a new project)

forge init my-project
cd my-project

Add OpenZeppelin Contracts:

forge install OpenZeppelin/openzeppelin-contracts@v<VERSION>

If using upgradeable contracts, also add the upgradeable variant:

forge install OpenZeppelin/openzeppelin-contracts-upgradeable@v<VERSION>

Look up the current version from https://github.com/OpenZeppelin/openzeppelin-contracts/releases. Pin to a release tag — without one, forge install pulls the default branch, which may be unstable.

remappings.txt (if not using upgradeable contracts)

@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/

remappings.txt (if using upgradeable contracts)

@openzeppelin/contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/
@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/

Note The above remappings mean that both @openzeppelin/contracts/ (including proxy contracts) and @openzeppelin/contracts-upgradeable/ come from the openzeppelin-contracts-upgradeable submodule and its subdirectories, which includes its own transitive copy of openzeppelin-contracts of the same release version number. This format is needed for Etherscan verification to work. Particularly, any copies of openzeppelin-contracts that are installed separately are NOT used.

Import Conventions

Standard: @openzeppelin/contracts/token/ERC20/ERC20.sol
Upgradeable: @openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol
Use upgradeable variants only when deploying behind proxies; otherwise use standard contracts.