OpenZeppelin Skills

---
name: openzeppelin-skills-c195da574ab7
description: "Authoritative knowledge of audited OpenZeppelin smart contract libraries. Reference for ERC-20, ERC-721, ERC-1155, access control, upgradeable contracts, and governance patterns."
version: 1.0.0
metadata:
  openclaw:
    tags: [security, openzeppelin, solidity, contracts, erc20, erc721, upgradeable, governance]
    official: false
    source: "https://github.com/OpenZeppelin/openzeppelin-contracts"
---

# OpenZeppelin Skills

Authoritative knowledge of audited OpenZeppelin smart contract libraries.

Provides comprehensive reference knowledge for the OpenZeppelin Contracts library, the most widely used smart contract framework. Covers ERC-20, ERC-721, ERC-1155 token standards, access control patterns (Ownable, AccessControl, roles), upgradeable contract patterns (UUPS, Transparent Proxy), governance (Governor, TimelockController), and security utilities.

## Key Contract Categories

### Token Standards
- **ERC-20** - Fungible tokens with extensions (Burnable, Capped, Pausable, Permit, Votes, Wrapper)
- **ERC-721** - NFTs with extensions (Enumerable, URIStorage, Burnable, Pausable, Votes)
- **ERC-1155** - Multi-token standard with batch operations

### Access Control
- **Ownable** - Single-owner access control
- **AccessControl** - Role-based access control with admin hierarchy
- **AccessManaged** - Centralized authority management

### Upgradeability
- **UUPS Proxy** - Universal Upgradeable Proxy Standard
- **Transparent Proxy** - Admin-separated upgrade pattern
- **Beacon Proxy** - Shared implementation upgrades

### Governance
- **Governor** - On-chain governance framework
- **TimelockController** - Time-delayed execution
- **Votes** - Vote tracking and delegation

## Links

- **Documentation**: https://docs.openzeppelin.com/contracts
- **GitHub**: https://github.com/OpenZeppelin/openzeppelin-contracts
- **Wizard**: https://wizard.openzeppelin.com