leave_review · Rover MCP Server MCP: Risk & Policy

WHAT IT DOES

What leave_review does on Rover MCP Server

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

WHY IT NEEDS A POLICY

Why leave_review needs a policy

This tool creates a new review/rating record on the Rover platform. It is a Write operation (creating content) that is reversible in principle (reviews can typically be edited or removed by platform admins). Misuse could damage a sitter's reputation, giving it medium severity, but it does not execute code, delete data, or move money.

From the tool's definition Leave a review for a sitter after a completed service

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

leave_review Rate-limited

leave_review 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": {
    "leave_review": {
      "limits": [
        {
          "counter": "leave_review_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 Rover MCP Server, so you can run agents against it safely.

FAQ

Questions about leave_review

What does the leave_review tool do? +

Leave a review for a sitter after a completed service. Requires being logged in. It is categorised as a Write tool in the Rover 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 leave_review? +

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

What risk level is leave_review? +

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

Can I rate-limit leave_review? +

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

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

leave_review is provided by the Rover MCP Server MCP server (markswendsen-code/mcp-rover). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

leave_review is one line of Rover MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →