crear_anuncio_foro · Moodle MCP: Risk & Policy

WHAT IT DOES

What crear_anuncio_foro does on Moodle

AI agents use crear_anuncio_foro 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 crear_anuncio_foro needs a policy

This tool creates new forum posts/discussions, which is a reversible Write operation. While it modifies course content, the action can be undone by deleting the post. Severity is medium because misuse could spam forums or spread misinformation to students, but the blast radius is limited to a single course's forum and the action is reversible.

From the tool's definition Tool description states 'Post a new discussion in a course forum', which creates new content in Moodle's forum system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

crear_anuncio_foro Rate-limited

crear_anuncio_foro 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": {
    "crear_anuncio_foro": {
      "limits": [
        {
          "counter": "crear_anuncio_foro_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 crear_anuncio_foro

What does the crear_anuncio_foro tool do? +

Post a new discussion in a course forum. If forum_id is omitted, uses the course Announcements (type=news) forum. 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 crear_anuncio_foro? +

Register the Moodle MCP server in PolicyLayer and add a rule for crear_anuncio_foro: 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 crear_anuncio_foro? +

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

Can I rate-limit crear_anuncio_foro? +

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

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

crear_anuncio_foro 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.