liberar_seccion · Moodle MCP: Risk & Policy

WHAT IT DOES

What liberar_seccion does on Moodle

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

WHY IT NEEDS A POLICY

Why liberar_seccion needs a policy

This tool modifies the visibility state of a course section, which is a reversible configuration change (the opposite operation 'ocultar_seccion' exists). It does not delete data, execute arbitrary commands, or involve financial transactions.

From the tool's definition Tool name 'liberar_seccion' and description 'Make a course section visible to students' directly indicate modification of course section visibility settings in Moodle.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

liberar_seccion Rate-limited

liberar_seccion 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": {
    "liberar_seccion": {
      "limits": [
        {
          "counter": "liberar_seccion_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 Moodle, so you can run agents against it safely.

FAQ

Questions about liberar_seccion

What does the liberar_seccion tool do? +

Make a course section visible to students (reverse of ocultar_seccion). It is categorised as a Write tool in the Moodle MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on liberar_seccion? +

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

What risk level is liberar_seccion? +

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

Can I rate-limit liberar_seccion? +

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

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

liberar_seccion is provided by the Moodle MCP server (marcosnahuel/moodle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.