edit_category · Money Lover MCP Server MCP: Risk & Policy

WHAT IT DOES

What edit_category does on Money Lover MCP Server

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

WHY IT NEEDS A POLICY

Why edit_category needs a policy

edit_category modifies category properties (name, icon) without deleting data or triggering financial transactions. This is a Write operation because it creates or modifies data reversibly. Severity is medium because misuse could corrupt the user's category taxonomy, making transactions harder to organize or find, but changes are not irreversible and do not affect account balances or financial obligations.

From the tool's definition Tool performs 'Rename a category or update its icon' — these are reversible modifications to existing data records.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_category Rate-limited

edit_category 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": {
    "edit_category": {
      "limits": [
        {
          "counter": "edit_category_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 Money Lover MCP Server, so you can run agents against it safely.

FAQ

Questions about edit_category

What does the edit_category tool do? +

Rename a category or update its icon. It is categorised as a Write tool in the Money Lover 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 edit_category? +

Register the Money Lover MCP Server MCP server in PolicyLayer and add a rule for edit_category: 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 Money Lover MCP Server. Nothing to install.

What risk level is edit_category? +

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

Can I rate-limit edit_category? +

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

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

edit_category is provided by the Money Lover MCP Server MCP server (juansebashr/moneylover-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.