update_license · CustomGPT MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_license does on CustomGPT MCP Server

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

WHY IT NEEDS A POLICY

Why update_license needs a policy

This tool modifies data (a license's name field) but does not delete, destroy, or execute arbitrary operations. It is a straightforward write operation with low blast radius—an AI misuse would result in an incorrect license name, easily corrected.

From the tool's definition Tool name 'update_license' and description 'Update a license name' indicate modification of existing data. The operation is reversible (a license name can be changed again), and the scope is limited to a single attribute of a license object.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_license Rate-limited

update_license 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": {
    "update_license": {
      "limits": [
        {
          "counter": "update_license_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 CustomGPT MCP Server, so you can run agents against it safely.

FAQ

Questions about update_license

What does the update_license tool do? +

Update a license name. It is categorised as a Write tool in the CustomGPT 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 update_license? +

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

What risk level is update_license? +

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

Can I rate-limit update_license? +

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

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

update_license is provided by the CustomGPT MCP Server MCP server (poll-the-people/customgpt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.