createCoupon · Abacatepay MCP: Risk & Policy

WHAT IT DOES

What createCoupon does on Abacatepay

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

WHY IT NEEDS A POLICY

Why createCoupon needs a policy

This tool creates a new discount coupon, which is a reversible write operation that modifies the system's data (coupon inventory). It does not delete data (Destructive), execute arbitrary code (Execute), or move money (Financial). While coupons can affect pricing and revenue, the tool itself only creates the coupon record.

From the tool's definition Tool name 'createCoupon' and description 'Cria um novo cupom de desconto' (Creates a new discount coupon) indicate creation of new data records.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createCoupon Rate-limited

createCoupon 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": {
    "createCoupon": {
      "limits": [
        {
          "counter": "createcoupon_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 Abacatepay, so you can run agents against it safely.

FAQ

Questions about createCoupon

What does the createCoupon tool do? +

Cria um novo cupom de desconto. It is categorised as a Write tool in the Abacatepay MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createCoupon? +

Register the Abacatepay MCP server in PolicyLayer and add a rule for createCoupon: 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 Abacatepay. Nothing to install.

What risk level is createCoupon? +

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

Can I rate-limit createCoupon? +

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

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

createCoupon is provided by the Abacatepay MCP server (juliopeixoto/abacatepay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.