ssh_close_session · Mcp Ssh Tool MCP: Risk & Policy

WHAT IT DOES

What ssh_close_session does on Mcp Ssh Tool

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

WHY IT NEEDS A POLICY

Why ssh_close_session needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ssh_close_session Rate-limited

ssh_close_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": {
    "ssh_close_session": {
      "limits": [
        {
          "counter": "ssh_close_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 Ssh Tool, so you can run agents against it safely.

FAQ

Questions about ssh_close_session

What does the ssh_close_session tool do? +

Closes an SSH session. It is categorised as a Write tool in the Mcp Ssh Tool MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ssh_close_session? +

Register the Mcp Ssh Tool MCP server in PolicyLayer and add a rule for ssh_close_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 Ssh Tool. Nothing to install.

What risk level is ssh_close_session? +

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

Can I rate-limit ssh_close_session? +

Yes. Add a rate_limit block to the ssh_close_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 ssh_close_session completely? +

Set action: deny in the PolicyLayer policy for ssh_close_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 ssh_close_session? +

ssh_close_session is provided by the Mcp Ssh Tool MCP server (skot/mcp-ssh-tool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.