create_invitation · Waldur MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_invitation does on Waldur MCP Server

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

WHY IT NEEDS A POLICY

Why create_invitation needs a policy

Creating invitations is a reversible write operation—invitations can typically be cancelled or revoked. It modifies system state by adding a new record but does not delete data or trigger financial transactions.

From the tool's definition Tool name 'create_invitation' indicates it creates a new entity (an invitation). The empty description limits certainty, but the verb 'create' and common patterns in Waldur (a service management platform) suggest this generates a new record in the system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_invitation Rate-limited

create_invitation 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": {
    "create_invitation": {
      "limits": [
        {
          "counter": "create_invitation_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 Waldur MCP Server, so you can run agents against it safely.

FAQ

Questions about create_invitation

What does the create_invitation tool do? +

create_invitation. It is categorised as a Write tool in the Waldur 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 create_invitation? +

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

What risk level is create_invitation? +

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

Can I rate-limit create_invitation? +

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

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

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