customs_create_order_draft · Customs MCP: Risk & Policy

WHAT IT DOES

What customs_create_order_draft does on Customs

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

WHY IT NEEDS A POLICY

Why customs_create_order_draft needs a policy

This tool creates audit entries and validates draft orders but does not execute actual orders, delete data, or move funds. It is a reversible write operation with moderate blast radius: malicious use could pollute audit logs or create misleading draft records that might influence downstream customs decisions, but the pre-check-only nature limits immediate impact.

From the tool's definition Tool description states 'write an audit row' which is a data creation/modification operation. The 'PRE-CHECK ONLY' qualifier and 'validate the payload' indicate reversible operations limited to draft creation and logging.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

customs_create_order_draft Rate-limited

customs_create_order_draft 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": {
    "customs_create_order_draft": {
      "limits": [
        {
          "counter": "customs_create_order_draft_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 Customs, so you can run agents against it safely.

FAQ

Questions about customs_create_order_draft

What does the customs_create_order_draft tool do? +

PRE-CHECK ONLY: validate the payload and write an audit row. It is categorised as a Write tool in the Customs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on customs_create_order_draft? +

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

What risk level is customs_create_order_draft? +

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

Can I rate-limit customs_create_order_draft? +

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

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

customs_create_order_draft is provided by the Customs MCP server (yak33/customs-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.