link_external_product · Rebillia MCP Server MCP

WHAT IT DOES

What link_external_product does on Rebillia MCP Server

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

WHY IT NEEDS A POLICY

Why link_external_product needs a policy

This tool creates a link/association between an external product and an internal product via a POST request. It modifies data by establishing a new relationship, which is reversible (the link can be removed). No financial transactions, destructive operations, or code execution are involved.

From the tool's definition Link an external product to a product. POST /products/{productId}/external-products

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

link_external_product Rate-limited

link_external_product 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": {
    "link_external_product": {
      "limits": [
        {
          "counter": "link_external_product_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 Rebillia MCP Server, so you can run agents against it safely.

FAQ

Questions about link_external_product

What does the link_external_product tool do? +

Link an external product to a product. POST /products/{productId}/external-products. Required: companyIntegrationId, productId (external), settings with modifierDisplayName. It is categorised as a Write tool in the Rebillia 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 link_external_product? +

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

What risk level is link_external_product? +

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

Can I rate-limit link_external_product? +

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

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

link_external_product is provided by the Rebillia MCP Server MCP server (rhinosaas/rebillia-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.