save_vps · Mt5 Remote Reader MCP: Risk & Policy

WHAT IT DOES

What save_vps does on Mt5 Remote Reader

AI agents use save_vps to create or update resources in Mt5 Remote Reader — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mt5 Remote Reader environment.

WHY IT NEEDS A POLICY

Why save_vps needs a policy

The tool name 'save_vps' combined with VPS management context indicates data modification. Without a description, confidence is moderated. It appears to create or update VPS configuration/state (Write category) rather than read data or irreversibly destroy it.

From the tool's definition Tool named 'save_vps' with no description provided. Given the server context of MetaTrader 5 VPS management via SSH, 'save' typically indicates state modification rather than retrieval.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_vps Rate-limited

save_vps 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": {
    "save_vps": {
      "limits": [
        {
          "counter": "save_vps_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 Mt5 Remote Reader, so you can run agents against it safely.

FAQ

Questions about save_vps

What does the save_vps tool do? +

save_vps. It is categorised as a Write tool in the Mt5 Remote Reader MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_vps? +

Register the Mt5 Remote Reader MCP server in PolicyLayer and add a rule for save_vps: 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 Mt5 Remote Reader. Nothing to install.

What risk level is save_vps? +

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

Can I rate-limit save_vps? +

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

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

save_vps is provided by the Mt5 Remote Reader MCP server (marco7734/mt5-remote-reader-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.