Supervisor Agent Safety Patterns

A supervisor agent is a dedicated component whose only job is to monitor and control other agents. Unlike worker agents that perform tasks, supervisors observe behavior, validate outputs, and intervene when safety boundaries are violated. Getting the supervisor pattern right is critical because a poorly designed supervisor adds complexity without adding safety.

Minimal Privilege for Supervisors

A supervisor should have monitoring and control privileges but not task execution privileges. It should be able to read agent outputs, inspect action envelopes, pause agents, and trigger alerts. It should not have access to databases, external APIs, or tool execution. This separation ensures a compromised supervisor cannot directly cause harm.

Independent Model

Run the supervisor on a different model or model version than the agents it supervises. If all agents use the same model and that model has a systematic vulnerability, a supervisor using the same model may have the same blind spot. Model diversity increases the chance that at least one component catches the problem.

Synchronous vs Asynchronous Supervision

In synchronous supervision, the supervisor reviews every action before it executes. This provides the strongest safety guarantee but adds latency. In asynchronous supervision, actions execute immediately and the supervisor reviews them after the fact, flagging or reverting problematic actions. Choose based on the risk profile of the actions involved.

Intervention Mechanisms

Define clear intervention levels: log-only, alert, pause agent, terminate agent, and rollback action. Map each intervention level to specific safety thresholds. A minor anomaly might trigger a log entry while a major policy violation triggers immediate agent termination.

Avoiding Supervisor Compromise

The supervisor itself is a high-value target. Isolate it from untrusted input, run it in a separate process or container, and monitor it with an independent watchdog. Authensor policies can enforce that supervisor control actions are only accepted from verified supervisor principals.

A supervisor is only as good as its isolation from the agents it supervises. Keep it simple, keep it separate, and keep it monitored.