BC_Create_Item · Business Central MCP Server MCP

WHAT IT DOES

What BC_Create_Item does on Business Central MCP Server

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

WHY IT NEEDS A POLICY

Why BC_Create_Item needs a policy

This tool creates new data (items) in a business system, which is a reversible Write operation. It does not execute arbitrary code, delete data irreversibly, or move money. Severity is medium because creating items in an ERP system like Business Central could have downstream business impact (inventory, accounting, procurement), but the action itself is reversible via updates or deletion.

From the tool's definition Tool description: 'Create a new item in Business Central.' Server description mentions 'create, update, and delete records.' The tool name 'BC_Create_Item' and description explicitly indicate record creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

BC_Create_Item Rate-limited

BC_Create_Item 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": {
    "BC_Create_Item": {
      "limits": [
        {
          "counter": "bc_create_item_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 Business Central MCP Server, so you can run agents against it safely.

FAQ

Questions about BC_Create_Item

What does the BC_Create_Item tool do? +

Create a new item in Business Central. It is categorised as a Write tool in the Business Central 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 BC_Create_Item? +

Register the Business Central MCP Server MCP server in PolicyLayer and add a rule for BC_Create_Item: 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 Business Central MCP Server. Nothing to install.

What risk level is BC_Create_Item? +

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

Can I rate-limit BC_Create_Item? +

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

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

BC_Create_Item is provided by the Business Central MCP Server MCP server (luismdev/mcp-business-central-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.