create_vouchers · Upgates MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_vouchers does on Upgates MCP Server

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

WHY IT NEEDS A POLICY

Why create_vouchers needs a policy

This tool creates new data (vouchers/discounts) in the Upgates e-commerce system. It is a Write operation because it creates records that can be reversed or modified. The severity is medium because while voucher creation could impact pricing or promotional logic if abused, it does not directly result in financial transactions, data destruction, or code execution.

From the tool's definition Tool name 'create_vouchers' and description 'Create discount vouchers' indicate data creation. The tool creates new voucher records in the e-commerce system, which is a reversible operation (vouchers can be deleted or modified).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_vouchers Rate-limited

create_vouchers 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": {
    "create_vouchers": {
      "limits": [
        {
          "counter": "create_vouchers_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 Upgates MCP Server, so you can run agents against it safely.

FAQ

Questions about create_vouchers

What does the create_vouchers tool do? +

Create discount vouchers. It is categorised as a Write tool in the Upgates 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 create_vouchers? +

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

What risk level is create_vouchers? +

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

Can I rate-limit create_vouchers? +

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

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

create_vouchers is provided by the Upgates MCP Server MCP server (mcp-open/upgates-com-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.