rbac-update-permissions · MCP LLM Generator v2 MCP

WHAT IT DOES

What rbac-update-permissions does on MCP LLM Generator v2

AI agents use rbac-update-permissions to create or update resources in MCP LLM Generator v2 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP LLM Generator v2 environment.

WHY IT NEEDS A POLICY

Why rbac-update-permissions needs a policy

This tool modifies permission configurations in an RBAC system. While permissions changes are theoretically reversible (unlike destructive operations), they have significant blast radius because incorrect permission modifications could grant unintended access or revoke legitimate access. Categorized as Write rather than Destructive because permission changes can be undone by reapplying correct permissions.

From the tool's definition Tool name 'rbac-update-permissions' with description 'Add or remove permissions for a persona and recalculate inheritance' directly indicates creation/modification of access control data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rbac-update-permissions Rate-limited

rbac-update-permissions 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": {
    "rbac-update-permissions": {
      "limits": [
        {
          "counter": "rbac-update-permissions_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 MCP LLM Generator v2, so you can run agents against it safely.

FAQ

Questions about rbac-update-permissions

What does the rbac-update-permissions tool do? +

Add or remove permissions for a persona and recalculate inheritance. It is categorised as a Write tool in the MCP LLM Generator v2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rbac-update-permissions? +

Register the MCP LLM Generator v2 MCP server in PolicyLayer and add a rule for rbac-update-permissions: 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 MCP LLM Generator v2. Nothing to install.

What risk level is rbac-update-permissions? +

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

Can I rate-limit rbac-update-permissions? +

Yes. Add a rate_limit block to the rbac-update-permissions 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 rbac-update-permissions completely? +

Set action: deny in the PolicyLayer policy for rbac-update-permissions. 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 rbac-update-permissions? +

rbac-update-permissions is provided by the MCP LLM Generator v2 MCP server (mako10k/mcp-llm-generator). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.