address_save · Novaposhta MCP: Risk & Policy

WHAT IT DOES

What address_save does on Novaposhta

AI agents use address_save 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 address_save needs a policy

This tool creates and persists new address records within the Nova Poshta system. It is reversible (as evidenced by the presence of address_delete and address_update siblings), making it a Write operation rather than Destructive.

From the tool's definition Tool explicitly described as 'Create new address' via the Address/save API endpoint. Accepts CounterpartyRef, StreetRef, BuildingNumber parameters and returns Ref and Description for address creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

address_save Rate-limited

address_save 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": {
    "address_save": {
      "limits": [
        {
          "counter": "address_save_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 address_save

What does the address_save tool do? +

Create new address for a counterparty via Address/save (doc 1.24). Requires API key plus CounterpartyRef, StreetRef, BuildingNumber; response returns the Ref and Description needed for door-to-door delivery. 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 address_save? +

Register the Novaposhta MCP server in PolicyLayer and add a rule for address_save: 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 address_save? +

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

Can I rate-limit address_save? +

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

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

address_save 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.