💰 Wallet Skill

Multi-chain wallet for EVM (6 chains) + Solana. Balances, transfers, signing, policy management.

Tools

Tool	Description
wallet_info	Get all wallet addresses
wallet_balance	EVM balance on a chain (DeBank)
wallet_sol_balance	Solana balance (Birdeye)
wallet_get_all_balances	All chains at once
wallet_transfer	Broadcast EVM tx (gas sponsored)
wallet_sign_transaction	Sign EVM tx (no broadcast)
wallet_sign	EIP-191 message signing
wallet_sign_typed_data	EIP-712 typed data signing
wallet_transactions	EVM tx history
wallet_sol_transfer	Broadcast Solana tx
wallet_sol_sign_transaction	Sign Solana tx (no broadcast)
wallet_sol_sign	Solana message signing
wallet_sol_transactions	Solana tx history
wallet_get_policy	Check policy status
wallet_propose_policy	Propose policy (sends to UI)

Key Facts

• Gas is sponsored on EVM chains — user doesn't need ETH for gas
• Policy default: OFF (allow-all). Only when user enables policy do transactions need UI confirmation
• Supported EVM chains: ethereum, base, arbitrum, optimism, polygon, linea
• Balance sources: DeBank (EVM), Birdeye (Solana), wallet-service (fallback)

Workflow

Check Balances

1. Single chain: wallet_balance(chain="base") or wallet_sol_balance()
2. All at once: wallet_get_all_balances()

Send Transaction (EVM)

1. Check balance: wallet_balance(chain=...)
2. Transfer: wallet_transfer(to=..., amount=..., chain_id=...)
3. Verify: wallet_transactions() or check balance again

Policy Management

1. Check: wallet_get_policy(chain_type="ethereum")
2. If user wants to enable: wallet_propose_policy(chain_type, rules, title, description)
3. User confirms in UI → policy applied

Standard Wildcard Policy (when needed)

rules = [
  {"name": "Deny key export", "method": "exportPrivateKey", "conditions": [], "action": "DENY"},
  {"name": "Allow all", "method": "*", "conditions": [], "action": "ALLOW"},
]

Gotchas

• wallet_propose_policy sends SSE event to frontend — needs streaming context
• DeBank/Birdeye keys are auto-injected by sc-proxy
• wallet_balance requires chain param — use wallet_get_all_balances for discovery
• Policy validation: eth_signTypedData_v4 requires at least one condition
• For both EVM + Solana policy, call wallet_propose_policy TWICE