set_cron_email · cPanel MCP Server MCP: Risk & Policy

WHAT IT DOES

What set_cron_email does on cPanel MCP Server

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

WHY IT NEEDS A POLICY

Why set_cron_email needs a policy

This tool modifies a reversible configuration value—the email address to which cron job notifications are sent. It creates or updates a setting without deleting data or executing arbitrary operations. The blast radius is minimal: a misconfigured notification email affects only where alerts are routed, not system integrity or data deletion. This is a straightforward Write operation.

From the tool's definition Tool name 'set_cron_email' and description 'Set the email address for cron job notifications' indicate modification of a configuration setting (the email address for notifications).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_cron_email Rate-limited

set_cron_email 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": {
    "set_cron_email": {
      "limits": [
        {
          "counter": "set_cron_email_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 cPanel MCP Server, so you can run agents against it safely.

FAQ

Questions about set_cron_email

What does the set_cron_email tool do? +

Set the email address for cron job notifications. It is categorised as a Write tool in the cPanel 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 set_cron_email? +

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

What risk level is set_cron_email? +

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

Can I rate-limit set_cron_email? +

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

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

set_cron_email is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.