create_practice_area · Mycase MCP: Risk & Policy

WHAT IT DOES

What create_practice_area does on Mycase

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

WHY IT NEEDS A POLICY

Why create_practice_area needs a policy

This tool creates a new practice area within the law firm's MyCase account. Creation operations are categorized as Write because they create data that can be modified or deleted later. The blast radius is low since creating a practice area does not affect existing cases, clients, or financial records, and the action is fully reversible. No client data, financial transactions, or destructive operations are involved.

From the tool's definition Tool name 'create_practice_area' and description 'Create a new practice area' indicate a creation operation that modifies data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_practice_area Rate-limited

create_practice_area 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_practice_area": {
      "limits": [
        {
          "counter": "create_practice_area_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mycase, so you can run agents against it safely.

FAQ

Questions about create_practice_area

What does the create_practice_area tool do? +

Create a new practice area. It is categorised as a Write tool in the Mycase 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_practice_area? +

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

What risk level is create_practice_area? +

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

Can I rate-limit create_practice_area? +

Yes. Add a rate_limit block to the create_practice_area 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_practice_area completely? +

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

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