close_debug_session · Mcp Debugger MCP: Risk & Policy

WHAT IT DOES

What close_debug_session does on Mcp Debugger

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

WHY IT NEEDS A POLICY

Why close_debug_session needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

close_debug_session Rate-limited

close_debug_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": {
    "close_debug_session": {
      "limits": [
        {
          "counter": "close_debug_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 Mcp Debugger, so you can run agents against it safely.

FAQ

Questions about close_debug_session

What does the close_debug_session tool do? +

Close a debugging session. It is categorised as a Write tool in the Mcp Debugger MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on close_debug_session? +

Register the Mcp Debugger MCP server in PolicyLayer and add a rule for close_debug_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 Mcp Debugger. Nothing to install.

What risk level is close_debug_session? +

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

Can I rate-limit close_debug_session? +

Yes. Add a rate_limit block to the close_debug_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 close_debug_session completely? +

Set action: deny in the PolicyLayer policy for close_debug_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 close_debug_session? +

close_debug_session is provided by the Mcp Debugger MCP server (@debugmcp/mcp-debugger). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.