ssh_auto_connect · Ssh Agent MCP: Risk & Policy

WHAT IT DOES

What ssh_auto_connect does on Ssh Agent

AI agents invoke ssh_auto_connect to trigger actions in Ssh Agent. 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.

WHY IT NEEDS A POLICY

Why ssh_auto_connect needs a policy

This tool establishes SSH connections automatically based on configuration markers. Initiating SSH connections is an external operation that can trigger further command execution on remote systems.

From the tool's definition 自动连接配置文件中标记为auto_connect的连接 (automatically connects SSH connections marked as auto_connect in config); part of a server that 'execute commands and transfer files via SFTP'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ssh_auto_connect Rate-limited

ssh_auto_connect 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": {
    "ssh_auto_connect": {
      "limits": [
        {
          "counter": "ssh_auto_connect_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 Agent, so you can run agents against it safely.

FAQ

Questions about ssh_auto_connect

What does the ssh_auto_connect tool do? +

自动连接配置文件中标记为auto_connect的连接. It is categorised as a Execute tool in the Ssh Agent MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ssh_auto_connect? +

Register the Ssh Agent MCP server in PolicyLayer and add a rule for ssh_auto_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 Agent. Nothing to install.

What risk level is ssh_auto_connect? +

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

Can I rate-limit ssh_auto_connect? +

Yes. Add a rate_limit block to the ssh_auto_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_auto_connect completely? +

Set action: deny in the PolicyLayer policy for ssh_auto_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_auto_connect? +

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