arvan_ssh_run_script

Run a multi-line script on a server over SSH (piped to bash -s).

SERVERArvanCloud MCP Server SOURCEdwin-gharibi/arvancloud-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/dwin-gharibi-arvancloud-mcp/arvan-ssh-run-script.md

WHAT IT DOES

What arvan_ssh_run_script does on ArvanCloud MCP Server

AI agents invoke arvan_ssh_run_script to trigger actions in ArvanCloud MCP Server. 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 arvan_ssh_run_script is rated High

This tool executes arbitrary code on production infrastructure. An AI agent misusing this could compromise servers, exfiltrate data, install backdoors, pivot to other systems, or cause operational failure. The combination of remote execution + bash + multi-line script support with no apparent input sanitization or execution limits makes this critical severity.

From the tool's definition 'Run a multi-line script on a server over SSH (piped to bash -s)' — directly executes arbitrary shell commands on remote infrastructure with no inherent constraints on what those commands can do.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs arvan_ssh_run_script safely

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

arvan_ssh_run_script Rate-limited

arvan_ssh_run_script 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": {
    "arvan_ssh_run_script": {
      "limits": [
        {
          "counter": "arvan_ssh_run_script_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 ArvanCloud MCP Server, apply this rule, and every arvan_ssh_run_script call is checked against it from then on.

FAQ

Questions about arvan_ssh_run_script

What does the arvan_ssh_run_script tool do? +

Run a multi-line script on a server over SSH (piped to bash -s). It is categorised as a Execute tool in the ArvanCloud MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on arvan_ssh_run_script? +

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

What risk level is arvan_ssh_run_script? +

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

Can I rate-limit arvan_ssh_run_script? +

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

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

arvan_ssh_run_script is provided by the ArvanCloud MCP Server MCP server (dwin-gharibi/arvancloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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