create_mailroom_item · Filevine MCP: Risk & Policy

WHAT IT DOES

What create_mailroom_item does on Filevine

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

WHY IT NEEDS A POLICY

Why create_mailroom_item needs a policy

This tool creates new mailroom entries in a legal case management system. While creation is reversible (items can be modified or deleted later), it constitutes a Write operation that modifies the state of the case management database.

From the tool's definition Tool name 'create_mailroom_item' explicitly indicates creation of a new mailroom item; description states 'Add an item' which is a write operation that creates reversible data in the Filevine legal case management system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_mailroom_item Rate-limited

create_mailroom_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": {
    "create_mailroom_item": {
      "limits": [
        {
          "counter": "create_mailroom_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 Filevine, so you can run agents against it safely.

FAQ

Questions about create_mailroom_item

What does the create_mailroom_item tool do? +

Add an item to the mailroom. fields_json is a JSON object. It is categorised as a Write tool in the Filevine MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_mailroom_item? +

Register the Filevine MCP server in PolicyLayer and add a rule for create_mailroom_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 Filevine. Nothing to install.

What risk level is create_mailroom_item? +

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

Can I rate-limit create_mailroom_item? +

Yes. Add a rate_limit block to the create_mailroom_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 create_mailroom_item completely? +

Set action: deny in the PolicyLayer policy for create_mailroom_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 create_mailroom_item? +

create_mailroom_item is provided by the Filevine MCP server (rosenadvertising/filevine-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.