Write Contracts Skill

Core Rules

Digital Assets (NFTs) ⭐ CRITICAL

1. ALWAYS use Digital Asset (DA) standard for ALL NFT-related contracts (collections, marketplaces, minting)
2. ALWAYS import aptos_token_objects::collection and aptos_token_objects::token modules
3. ALWAYS use Object<AptosToken> for NFT references (NOT generic Object<T>)
4. NEVER use legacy TokenV1 standard or aptos_token::token module (deprecated)
5. See ../../../patterns/move/DIGITAL_ASSETS.md for complete NFT patterns

Object Model

6. ALWAYS use Object<T> for all object references (NEVER raw addresses)
7. Generate all refs (TransferRef, DeleteRef) in constructor before ConstructorRef destroyed
8. Return Object<T> from constructors (NEVER return ConstructorRef)
9. Verify ownership with object::owner(obj) == signer::address_of(user)
10. Use object::generate_signer(&constructor_ref) for object signers