upsert_email_template · Prowpt MCP Server MCP: Risk & Policy

WHAT IT DOES

What upsert_email_template does on Prowpt MCP Server

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

WHY IT NEEDS A POLICY

Why upsert_email_template needs a policy

This tool creates or modifies email templates, which is a Write operation. While email templates could be used for phishing or spam if an agent is compromised, the tool itself only modifies template data reversibly—templates can be recreated or corrected.

From the tool's definition Tool name and description explicitly state 'Create or update an email template', indicating reversible modification of data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upsert_email_template Rate-limited

upsert_email_template 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": {
    "upsert_email_template": {
      "limits": [
        {
          "counter": "upsert_email_template_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 Prowpt MCP Server, so you can run agents against it safely.

FAQ

Questions about upsert_email_template

What does the upsert_email_template tool do? +

Create or update an email template. For new templates. It is categorised as a Write tool in the Prowpt 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 upsert_email_template? +

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

What risk level is upsert_email_template? +

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

Can I rate-limit upsert_email_template? +

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

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

upsert_email_template is provided by the Prowpt MCP Server MCP server (prowptai/prowpt-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.