waybill_create_for_postomat · Novaposhta MCP: Risk & Policy

WHAT IT DOES

What waybill_create_for_postomat does on Novaposhta

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

WHY IT NEEDS A POLICY

Why waybill_create_for_postomat needs a policy

This tool creates a new waybill record in Nova Poshta's system, which is a reversible write operation. While it initiates a shipping process, the waybill itself can be modified or cancelled before actual pickup occurs.

From the tool's definition Tool creates/saves a waybill document via 'save' operation. Description states 'Create a waybill' and references 'InternetDocument/save', which are create/write operations that generate new shipping records in the Nova Poshta system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

waybill_create_for_postomat Rate-limited

waybill_create_for_postomat 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": {
    "waybill_create_for_postomat": {
      "limits": [
        {
          "counter": "waybill_create_for_postomat_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 Novaposhta, so you can run agents against it safely.

FAQ

Questions about waybill_create_for_postomat

What does the waybill_create_for_postomat tool do? +

Create a waybill for postomat delivery via InternetDocument/save (doc 1.2). Postomats have size/weight restrictions (max 30kg, max dimensions). Requires proper warehouse selection (postomat type) and seat options configuration. It is categorised as a Write tool in the Novaposhta MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on waybill_create_for_postomat? +

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

What risk level is waybill_create_for_postomat? +

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

Can I rate-limit waybill_create_for_postomat? +

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

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

waybill_create_for_postomat is provided by the Novaposhta MCP server (@shopana/novaposhta-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.