update_admin_group · Mealie MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_admin_group does on Mealie MCP Server

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

WHY IT NEEDS A POLICY

Why update_admin_group needs a policy

This tool updates administrative group settings, which is a Write operation (reversible modification of data). Severity is high because unauthorized group updates could alter permissions, access controls, and administrative boundaries affecting multiple users. However, it is not Destructive (not deletion), Financial, or Execute (not arbitrary code/command), so Write is the correct category.

From the tool's definition Tool name is 'update_admin_group' and description states 'Update one admin-visible group by ID' — this modifies group configuration/data reversibly via an update operation.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_admin_group Rate-limited

update_admin_group 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_admin_group": {
      "limits": [
        {
          "counter": "update_admin_group_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 Mealie MCP Server, so you can run agents against it safely.

FAQ

Questions about update_admin_group

What does the update_admin_group tool do? +

Update one admin-visible group by ID. It is categorised as a Write tool in the Mealie 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_admin_group? +

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

What risk level is update_admin_group? +

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

Can I rate-limit update_admin_group? +

Yes. Add a rate_limit block to the update_admin_group 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_admin_group completely? +

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

update_admin_group is provided by the Mealie MCP Server MCP server (nikopol666/mealie-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.