invite_user · Portkey MCP Server MCP: Risk & Policy

WHAT IT DOES

What invite_user does on Portkey MCP Server

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

WHY IT NEEDS A POLICY

Why invite_user needs a policy

Inviting users creates new identities and modifies organizational access control. While not irreversible (users can be removed) or destructive, this is a Write operation that can significantly impact security and organizational access. The severity is high because granting incorrect permissions or inviting unauthorized users could expose sensitive workspaces, API keys, and analytics data to unauthorized parties.

From the tool's definition Tool name 'invite_user' and description 'Invite a new user to your Portkey organization with specific workspace access and API key permissions' indicate the tool creates new user accounts and assigns permissions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

invite_user Rate-limited

invite_user 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": {
    "invite_user": {
      "limits": [
        {
          "counter": "invite_user_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 Portkey MCP Server, so you can run agents against it safely.

FAQ

Questions about invite_user

What does the invite_user tool do? +

Invite a new user to your Portkey organization with specific workspace access and API key permissions. It is categorised as a Write tool in the Portkey 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 invite_user? +

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

What risk level is invite_user? +

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

Can I rate-limit invite_user? +

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

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

invite_user is provided by the Portkey MCP Server MCP server (r-huijts/portkey-admin-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.