set_grouping_groups

Make a grouping's groups exactly groupIds, adding and removing as its page does; groups of other courses are left out and named. Returns its groups afterwards. Confirm with the person first.

SERVERMoodle SOURCE@falkenslab/moodle-mcp

Medium RISK CLASS

Category Write

Parameters 22 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/falkenslab-moodle-mcp/set-grouping-groups.md

WHAT IT DOES

What set_grouping_groups does on Moodle

AI agents use set_grouping_groups 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.

Parameter	Type	Required	Description
`groupIds`	array	Yes
`groupingId`	integer	Yes	The grouping's id, as list_groupings gives it

Parameters from the server's own tool schema.

RISK

Why set_grouping_groups is rated Medium

An AI agent can call set_grouping_groups faster than any human can review: one bad instruction and it creates or modifies resources in Moodle by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_grouping_groups safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Moodle, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_grouping_groups, this is the rule to start with:

set_grouping_groups Rate-limited

set_grouping_groups 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": {
    "set_grouping_groups": {
      "limits": [
        {
          "counter": "set_grouping_groups_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Moodle, apply this rule, and every set_grouping_groups call is checked against it from then on.

FAQ

Questions about set_grouping_groups

What does the set_grouping_groups tool do? +

Make a grouping's groups exactly groupIds, adding and removing as its page does; groups of other courses are left out and named. Returns its groups afterwards. Confirm with the person first. 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.

What parameters does set_grouping_groups accept? +

set_grouping_groups accepts 2 parameters: groupIds, groupingId. Required: groupIds, groupingId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_grouping_groups? +

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

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

Can I rate-limit set_grouping_groups? +

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

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

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

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