openzeppelin-contracts
Skill based on OpenZeppelin Contracts (docs as of 2026-02-09), generated from
sources/openzeppelin.
OpenZeppelin Contracts is a library for secure smart contract development on EVM. Use via inheritance (e.g. ERC20, AccessControl) or using for (e.g. ECDSA, Math). Covers access control (Ownable, RBAC, AccessManager, TimelockController), tokens (ERC20, ERC721, ERC1155, ERC4626, ERC6909), upgradeable variants, and utilities (crypto, math, introspection, structures, storage).
Core References
| Topic | Description | Reference |
|---|---|---|
| Overview | Library usage, inheritance, extending contracts | core-overview |
| Access Control | Ownable, AccessControl (RBAC), AccessManager, TimelockController | core-access-control |
| Tokens | Token standards and when to use ERC20/721/1155/4626/6909 | core-tokens |
| ERC20 | Fungible tokens, decimals, transfer, supply | core-erc20 |
| ERC721 | Non-fungible tokens, URI storage, minting | core-erc721 |
| ERC1155 | Multi-token (fungible + NFT), batch ops, safe transfer to contracts | core-erc1155 |
| ERC4626 | Tokenized vaults, shares vs assets, inflation attack mitigation | core-erc4626 |
| ERC6909 | Multi-asset (no batch/callbacks), granular approvals, extensions | core-erc6909 |
| ERC20 Supply | Creating supply with _mint and _update, fixed and reward patterns | core-erc20-supply |
Features
More from hairyf/blockchain-master
viem
TypeScript interface for Ethereum — clients, contracts, accounts, chains, ENS, and utilities.
13wagmi
Wagmi — React/Vue/Solid hooks and Core for Ethereum; config, connectors, read/write contracts, TanStack Query.
11ton
TON Blockchain — addresses, messages, TVM, cells, Blueprint, contracts, payments, API.
11envio
Envio blockchain data stack — HyperSync, HyperIndex, HyperRPC; fast indexing and data APIs.
8uniswap-v4
Uniswap v4 core pool logic — singleton PoolManager, unlock/callback, pool actions, hooks, and types.
7aave-v3-core
Aave Protocol V3 core contracts—Pool (supply, borrow, liquidate, flash loans), data types, addresses provider, eMode and isolation.
6