create_showing · Rentalot MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_showing does on Rentalot MCP Server

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

WHY IT NEEDS A POLICY

Why create_showing needs a policy

This tool creates a new data record (a showing/appointment) in a reversible manner. The operation modifies the database by adding a showing entry but does not permanently delete data or execute arbitrary code. The potential for misuse is moderate — an attacker could create numerous spurious showings to disrupt operations or waste time, but individual showings can be cancelled.

From the tool's definition Tool description explicitly states 'schedule a new property showing' and 'Write operation — requires Pro tier or higher.' Creates new showing records in the rental property management system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_showing Rate-limited

create_showing 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_showing": {
      "limits": [
        {
          "counter": "create_showing_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 Rentalot MCP Server, so you can run agents against it safely.

FAQ

Questions about create_showing

What does the create_showing tool do? +

Use to schedule a new property showing. Requires property ID, contact ID, title, and start/end times. Write operation — requires Pro tier or higher. It is categorised as a Write tool in the Rentalot 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_showing? +

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

What risk level is create_showing? +

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

Can I rate-limit create_showing? +

Yes. Add a rate_limit block to the create_showing 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_showing completely? +

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

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