Can I create NFTs with metadata stored directly on the blockchain?

Yes, it includes patterns for both off-chain IPFS-based metadata and full on-chain metadata generation using SVG and Base64 encoding.

Does this skill support marketplace royalty enforcement?

Yes, it includes implementation patterns for EIP-2981, the universal royalty standard supported by major marketplaces like OpenSea, LooksRare, and Rarible.

Is it compatible with OpenZeppelin libraries?

Absolutely. The skill follows best practices by building upon battle-tested OpenZeppelin extensions to ensure security and standard compliance.

How does this skill handle high gas costs during minting?

The skill provides templates for ERC721A, a highly optimized implementation that significantly reduces gas costs for batch minting multiple NFTs in a single transaction.

NFT Standards & Smart Contracts

Name: NFT Standards & Smart Contracts
Author: EricGrill

byEricGrill

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E-commerce Solutions

Implements ERC-721 and ERC-1155 standards with advanced metadata handling, gas optimization, and marketplace-ready features.

This skill empowers developers to architect and deploy professional-grade NFT ecosystems using industry-standard protocols. It provides comprehensive patterns for ERC-721 and ERC-1155 tokens, covering everything from basic minting and IPFS-based metadata to complex implementations like EIP-2981 royalties, gas-efficient ERC721A batch minting, and dynamic, evolving NFTs. Whether building digital art collections, gaming assets, or soulbound identity tokens, this skill ensures smart contracts are secure, interoperable with major marketplaces, and optimized for performance.

Key Features

012 GitHub stars

02Gas-optimized batch minting implementations using ERC721A

03Support for dynamic on-chain and off-chain (IPFS) metadata schemas

04EIP-2981 royalty standard integration for cross-marketplace compatibility

05Soulbound (non-transferable) token logic for identity and achievement systems

06Full ERC-721 and ERC-1155 implementation patterns using OpenZeppelin

Use Cases

01Launching large-scale digital art collections with reveal mechanisms and whitelisting

02Developing interoperable gaming assets, currency systems, and inventories

03Creating non-transferable certificates, credentials, or reputation badges

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ericgrill/agents-skills-plugins nft-standards

For use in Claude.ai and ChatGPT

Download Skill