stop_ssh_tunnel

Terminates a background SSH tunnel or process.

SERVERPentester-MCP SOURCEhalilkirazkaya/pentester-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/halilkirazkaya-pentester-mcp/stop-ssh-tunnel.md

WHAT IT DOES

What stop_ssh_tunnel does on Pentester-MCP

AI agents invoke stop_ssh_tunnel to trigger actions in Pentester-MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why stop_ssh_tunnel is rated High

While not destructive (the tunnel can be restarted), this is an Execute action because it triggers termination of an active external process. The severity is medium rather than high because stopping a tunnel is typically reversible (can be restarted), but it could disrupt legitimate network operations or security assessments if misused by an AI agent without proper context.

From the tool's definition Terminates a background SSH tunnel or process. This involves stopping a running process/service, which is an external operation with side effects depending on which tunnel/process is targeted.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stop_ssh_tunnel safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Pentester-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stop_ssh_tunnel, this is the rule to start with:

stop_ssh_tunnel Rate-limited

stop_ssh_tunnel stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stop_ssh_tunnel": {
      "limits": [
        {
          "counter": "stop_ssh_tunnel_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Pentester-MCP, apply this rule, and every stop_ssh_tunnel call is checked against it from then on.

FAQ

Questions about stop_ssh_tunnel

What does the stop_ssh_tunnel tool do? +

Terminates a background SSH tunnel or process. It is categorised as a Execute tool in the Pentester-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on stop_ssh_tunnel? +

Register the Pentester MCP server in PolicyLayer and add a rule for stop_ssh_tunnel: 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 Pentester-MCP. Nothing to install.

What risk level is stop_ssh_tunnel? +

stop_ssh_tunnel is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit stop_ssh_tunnel? +

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

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

stop_ssh_tunnel is provided by the Pentester MCP server (halilkirazkaya/pentester-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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