Connecting an AI agent to a Web3 wallet creates a powerful action layer: the agent can pay for services, execute smart-contract calls, manage digital goods or coordinate transactions. It also creates an obvious security problem. An agent that holds unrestricted signing authority becomes a high-value failure point.<\/p>\n
The safest architecture is usually to avoid giving the agent unrestricted wallet authority. Use delegated permissions that can expire, be revoked and be limited to specific actions.<\/p>\n
A session key can authorize a defined set of actions for a limited period. Policies may restrict contracts, function calls, assets, networks or transaction size.<\/p>\n
Agents should have explicit per-transaction and cumulative limits. A compromised prompt or buggy loop should not be able to drain an account through repeated small actions.<\/p>\n
If an agent only needs to interact with known protocols, restrict it to approved contract addresses and methods. New destinations can require human review.<\/p>\n
Low-risk routine actions may execute automatically, while higher-value or unusual transactions should pause for confirmation. This preserves automation without pretending every action has the same risk.<\/p>\n
The reasoning system can propose a transaction, but a policy engine should decide whether it is permitted. Signing should occur only after independent checks.<\/p>\n
Users need a clear way to disable the agent’s authority without migrating the entire wallet. Expiring permissions and revocable session keys make this practical.<\/p>\n
Record what the agent intended, what transaction was constructed, which policy authorized it and what actually executed on-chain. Auditable traces are essential for debugging autonomous software.<\/p>\n