unregister_agent · Gptqueue MCP: Risk & Policy

WHAT IT DOES

What unregister_agent does on Gptqueue

AI agents use unregister_agent to create or update resources in Gptqueue — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Gptqueue environment.

WHY IT NEEDS A POLICY

Why unregister_agent needs a policy

This tool modifies system state (agent registration) and removes associated data (queue cleanup), which is reversible if the agent can re-register. While it cleans up data, the action is scoped to the calling agent's own resources rather than arbitrary data deletion, and re-registration is possible. This fits Write rather than Destructive because the effect is reversible through re-registration.

From the tool's definition Tool name 'unregister_agent' and description 'Unregister this agent and clean up its queue data' indicates modification of registration state and deletion of queue data associated with the agent.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unregister_agent Rate-limited

unregister_agent stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unregister_agent": {
      "limits": [
        {
          "counter": "unregister_agent_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Gptqueue, so you can run agents against it safely.

FAQ

Questions about unregister_agent

What does the unregister_agent tool do? +

Unregister this agent and clean up its queue data. It is categorised as a Write tool in the Gptqueue MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unregister_agent? +

Register the Gptqueue MCP server in PolicyLayer and add a rule for unregister_agent: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Gptqueue. Nothing to install.

What risk level is unregister_agent? +

unregister_agent is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit unregister_agent? +

Yes. Add a rate_limit block to the unregister_agent rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block unregister_agent completely? +

Set action: deny in the PolicyLayer policy for unregister_agent. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides unregister_agent? +

unregister_agent is provided by the Gptqueue MCP server (rahulrajaram/gptqueue). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.