Second-class EVM chain? If this is a second-class EVM chain integration, disregard the rest of this skill. Load and follow the contract at .claude/contracts/second-class-evm-chain.md instead - it contains the complete, authoritative checklist of every integration point required. Use the contract as your build todo list, checking off items as you go.

Chain Integration Skill

You are helping integrate a new blockchain as a second-class citizen into ShapeShift Web and HDWallet. This means basic support (native asset send/receive, account derivation, swaps to/from the chain) using the "poor man's" approach similar to Monad, Tron, and Sui - public RPC, no microservices, minimal features.

When This Skill Activates

Use this skill when the user wants to:

• "Add support for [ChainName]"
• "Integrate [ChainName] as second-class citizen"
• "Implement basic [ChainName] support"
• "Add [ChainName] with native wallet only"

Critical Understanding