add_option_to_custom_field · Eduframe MCP: Risk & Policy

WHAT IT DOES

What add_option_to_custom_field does on Eduframe

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

WHY IT NEEDS A POLICY

Why add_option_to_custom_field needs a policy

This tool modifies configuration data (custom field options) in a reversible manner. It is Write-category because it creates new metadata/options without deleting or executing arbitrary code.

From the tool's definition Tool name 'add_option_to_custom_field' and description 'Add an option to a custom field' indicate a create/modify operation that adds a new option to an existing custom field schema.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_option_to_custom_field Rate-limited

add_option_to_custom_field 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": {
    "add_option_to_custom_field": {
      "limits": [
        {
          "counter": "add_option_to_custom_field_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 Eduframe, so you can run agents against it safely.

FAQ

Questions about add_option_to_custom_field

What does the add_option_to_custom_field tool do? +

Add an option to a custom field. It is categorised as a Write tool in the Eduframe MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_option_to_custom_field? +

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

What risk level is add_option_to_custom_field? +

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

Can I rate-limit add_option_to_custom_field? +

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

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

add_option_to_custom_field is provided by the Eduframe MCP server (martijnpieters/eduframe-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.