vote_review · Maiat Protocol MCP: Risk & Policy

WHAT IT DOES

What vote_review does on Maiat Protocol

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

WHY IT NEEDS A POLICY

Why vote_review needs a policy

This tool creates or modifies data (review votes and associated Scarab token rewards) in a reversible manner. While it involves financial implications (Scarab token rewards), the primary action is modifying review metadata, and the rewards are contingent on voting behavior rather than direct financial transfers.

From the tool's definition The tool description states 'Upvote or downvote a review' and 'Upvotes reward the reviewer +2 Scarab', indicating it modifies review data (vote counts) and adjusts token balances.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vote_review Rate-limited

vote_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": {
    "vote_review": {
      "limits": [
        {
          "counter": "vote_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 Maiat Protocol, so you can run agents against it safely.

FAQ

Questions about vote_review

What does the vote_review tool do? +

Upvote or downvote a review. Only vote when you have firsthand experience with the reviewed entity. Upvotes reward the reviewer +2 Scarab. It is categorised as a Write tool in the Maiat Protocol MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vote_review? +

Register the Maiat Protocol MCP server in PolicyLayer and add a rule for vote_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 Maiat Protocol. Nothing to install.

What risk level is vote_review? +

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

Can I rate-limit vote_review? +

Yes. Add a rate_limit block to the vote_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 vote_review completely? +

Set action: deny in the PolicyLayer policy for vote_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 vote_review? +

vote_review is provided by the Maiat Protocol MCP server (jhinresh/maiat-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.