debug_terminate_session · Polybugger MCP: Risk & Policy

WHAT IT DOES

What debug_terminate_session does on Polybugger

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

WHY IT NEEDS A POLICY

Why debug_terminate_session needs a policy

An AI agent can call debug_terminate_session faster than any human can review — one bad instruction and it creates or modifies resources in Polybugger by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

debug_terminate_session Rate-limited

debug_terminate_session 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": {
    "debug_terminate_session": {
      "limits": [
        {
          "counter": "debug_terminate_session_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 Polybugger, so you can run agents against it safely.

FAQ

Questions about debug_terminate_session

What does the debug_terminate_session tool do? +

Terminate session and clean up. It is categorised as a Write tool in the Polybugger MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on debug_terminate_session? +

Register the Polybugger MCP server in PolicyLayer and add a rule for debug_terminate_session: 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 Polybugger. Nothing to install.

What risk level is debug_terminate_session? +

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

Can I rate-limit debug_terminate_session? +

Yes. Add a rate_limit block to the debug_terminate_session 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 debug_terminate_session completely? +

Set action: deny in the PolicyLayer policy for debug_terminate_session. 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 debug_terminate_session? +

debug_terminate_session is provided by the Polybugger MCP server (wilfoa/polybugger-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.