setup-cairo-contracts: Workflow Automation for AI Agents | OpenAgentSkill

Overview

Set up a Cairo smart contract project with OpenZeppelin Contracts for Cairo on Starknet. Use when users need to: (1) create a new Scarb/Starknet project, (2) add OpenZeppelin Contracts for Cairo dependencies to Scarb.toml, (3) configure individual or umbrella OpenZeppelin packages, or (4) understand Cairo import conventions and component patterns for OpenZeppelin.

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Cairo Setup

Project Scaffolding

Install toolchain and create a project:

curl --proto '=https' --tlsv1.2 -sSf https://sh.starkup.sh | sh
scarb new my_project --test-runner=starknet-foundry

This scaffolds a complete Starknet project with snforge testing preconfigured.

OpenZeppelin Dependencies

Look up the current version from https://docs.openzeppelin.com/contracts-cairo before adding. Add to Scarb.toml:

Full library (umbrella package):

[dependencies]
openzeppelin = "<VERSION>"

Individual packages (faster builds — only compiles what you use):

[dependencies]
openzeppelin_token = "<VERSION>"
openzeppelin_access = "<VERSION>"

Available individual packages: openzeppelin_access, openzeppelin_account, openzeppelin_finance, openzeppelin_governance, openzeppelin_interfaces, openzeppelin_introspection, openzeppelin_merkle_tree, openzeppelin_presets, openzeppelin_security, openzeppelin_token, openzeppelin_upgrades, openzeppelin_utils.

openzeppelin_interfaces and openzeppelin_utils are versioned independently. Check the docs for their specific versions. All other packages share the same version.

Import Conventions

The import path depends on which dependency is declared:

Umbrella package (openzeppelin = "..."): use openzeppelin:: as the root
Individual packages (openzeppelin_token = "..."): use the package name as the root

// Individual packages
use openzeppelin_token::erc20::{ERC20Component, ERC20HooksEmptyImpl};
use openzeppelin_access::ownable::OwnableComponent;
use openzeppelin_upgrades::UpgradeableComponent;

// Umbrella package equivalents
use openzeppelin::token::erc20::{ERC20Component, ERC20HooksEmptyImpl};
use openzeppelin::access::ownable::OwnableComponent;
use openzeppelin::upgrades::UpgradeableComponent;

Components are integrated via the component! macro, embedded impls, and substorage:

component!(path: ERC20Component, storage: erc20, event: ERC20Event);

#[abi(embed_v0)]
impl ERC20MixinImpl = ERC20Component::ERC20MixinImpl<ContractState>;
impl ERC20InternalImpl = ERC20Component::InternalImpl<ContractState>;

View source ↗

File metadata

name: setup-cairo-contracts
description: "Set up a Cairo smart contract project with OpenZeppelin Contracts for Cairo on Starknet. Use when users need to: (1) create a new Scarb/Starknet project, (2) add OpenZeppelin Contracts for Cairo dependencies to Scarb.toml, (3) configure individual or umbrella OpenZeppelin packages, or (4) understand Cairo import conventions and component patterns for OpenZeppelin."
license: AGPL-3.0-only
metadata:
  author: OpenZeppelin

View original text

---
name: setup-cairo-contracts
description: "Set up a Cairo smart contract project with OpenZeppelin Contracts for Cairo on Starknet. Use when users need to: (1) create a new Scarb/Starknet project, (2) add OpenZeppelin Contracts for Cairo dependencies to Scarb.toml, (3) configure individual or umbrella OpenZeppelin packages, or (4) understand Cairo import conventions and component patterns for OpenZeppelin."
license: AGPL-3.0-only
metadata:
  author: OpenZeppelin
---

# Cairo Setup

## Project Scaffolding

Install toolchain and create a project:

```bash
curl --proto '=https' --tlsv1.2 -sSf https://sh.starkup.sh | sh
scarb new my_project --test-runner=starknet-foundry
```

This scaffolds a complete Starknet project with `snforge` testing preconfigured.

## OpenZeppelin Dependencies

Look up the current version from https://docs.openzeppelin.com/contracts-cairo before adding. Add to `Scarb.toml`:

Full library (umbrella package):

```toml
[dependencies]
openzeppelin = "<VERSION>"
```

Individual packages (faster builds — only compiles what you use):

```toml
[dependencies]
openzeppelin_token = "<VERSION>"
openzeppelin_access = "<VERSION>"
```

Available individual packages: `openzeppelin_access`, `openzeppelin_account`, `openzeppelin_finance`, `openzeppelin_governance`, `openzeppelin_interfaces`, `openzeppelin_introspection`, `openzeppelin_merkle_tree`, `openzeppelin_presets`, `openzeppelin_security`, `openzeppelin_token`, `openzeppelin_upgrades`, `openzeppelin_utils`.

> `openzeppelin_interfaces` and `openzeppelin_utils` are versioned independently. Check the docs for their specific versions. All other packages share the same version.

## Import Conventions

The import path depends on which dependency is declared:

- **Umbrella package** (`openzeppelin = "..."`): use `openzeppelin::` as the root
- **Individual packages** (`openzeppelin_token = "..."`): use the package name as the root

```cairo
// Individual packages
use openzeppelin_token::erc20::{ERC20Component, ERC20HooksEmptyImpl};
use openzeppelin_access::ownable::OwnableComponent;
use openzeppelin_upgrades::UpgradeableComponent;

// Umbrella package equivalents
use openzeppelin::token::erc20::{ERC20Component, ERC20HooksEmptyImpl};
use openzeppelin::access::ownable::OwnableComponent;
use openzeppelin::upgrades::UpgradeableComponent;
```

Components are integrated via the `component!` macro, embedded impls, and substorage:

```cairo
component!(path: ERC20Component, storage: erc20, event: ERC20Event);

#[abi(embed_v0)]
impl ERC20MixinImpl = ERC20Component::ERC20MixinImpl<ContractState>;
impl ERC20InternalImpl = ERC20Component::InternalImpl<ContractState>;
```

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Review before install: Avoid automatic install

Dependency or permission surface needs review
Permission surface may require sandboxing
Financial research output is not financial advice; require human review before any live investment decision
The skill instructs running a remote script via curl from sh.starkup.sh, which is a potential supply-chain risk if the URL is compromised. However, it is a well-known provider and the risk is low.

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License: AGPL-3.0-only
Version: 1.0.0
Last GitHub push: Sep 1, 2026
Registry updated: Sep 6, 2026
Instruction path: skills/setup-cairo-contracts/SKILL.md @ 6f215af60eb6

Version reported in registry metadata; check source releases before relying on it.

Quality

70/100

Strong

Trust

63/100

Sandbox only

Audit

77/100

Needs review

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