ssh_connect · SSH MCP Server MCP: Risk & Policy

WHAT IT DOES

What ssh_connect does on SSH MCP Server

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

WHY IT NEEDS A POLICY

Why ssh_connect needs a policy

Establishing an SSH connection is a Write-level action — it creates a persistent network session/resource. It does not execute commands or transfer files by itself, but it opens a channel that enables subsequent high-risk operations. Misuse could expose remote servers to unauthorized access, hence medium severity.

From the tool's definition Connect to an SSH server using password or SSH key authentication

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ssh_connect Rate-limited

ssh_connect 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_connect": {
      "limits": [
        {
          "counter": "ssh_connect_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 SSH MCP Server, so you can run agents against it safely.

FAQ

Questions about ssh_connect

What does the ssh_connect tool do? +

Connect to an SSH server using password or SSH key authentication. Supports IPv4 and IPv6. It is categorised as a Write tool in the SSH MCP Server 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_connect? +

Register the SSH MCP Server MCP server in PolicyLayer and add a rule for ssh_connect: 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 SSH MCP Server. Nothing to install.

What risk level is ssh_connect? +

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

Can I rate-limit ssh_connect? +

Yes. Add a rate_limit block to the ssh_connect 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_connect completely? +

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

ssh_connect is provided by the SSH MCP Server MCP server (zibdie/ssh-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.