Wallet Policy

A comprehensive wallet interface that handles both EVM chains and Solana with built-in gas sponsorship, policy management, and transaction signing. Pulls balances from DeBank and Birdeye APIs, broadcasts transactions with automatic gas sponsoring that falls back to user-paid if needed, and implements Privy's policy system for transaction approval workflows. The policy logic is surprisingly complex with deny-always-wins rules and mandatory conditions for transaction methods. You'd use this when building wallet functionality into Claude without wanting to handle the multi-chain complexity yourself, though the policy configuration requires careful attention to avoid lockouts.