neptime_rate_comment · Neptime MCP: Risk & Policy

WHAT IT DOES

What neptime_rate_comment does on Neptime

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

WHY IT NEEDS A POLICY

Why neptime_rate_comment needs a policy

This tool creates or modifies data reversibly by updating a comment's rating/like status. Users can change their rating at any time, making this a Write operation rather than Destructive. The blast radius is low since rating changes are non-critical, easily reversible engagement metadata and do not affect core content or financial operations.

From the tool's definition Tool description states "Like or dislike a comment," which modifies the rating/engagement state of an existing comment. The tool takes comment_id and rating parameters, indicating it updates comment metadata rather than deleting or creating new content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

neptime_rate_comment Rate-limited

neptime_rate_comment 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": {
    "neptime_rate_comment": {
      "limits": [
        {
          "counter": "neptime_rate_comment_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 Neptime, so you can run agents against it safely.

FAQ

Questions about neptime_rate_comment

What does the neptime_rate_comment tool do? +

Like or dislike a comment. Args: - comment_id: Comment ID (required) - rating:. It is categorised as a Write tool in the Neptime MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on neptime_rate_comment? +

Register the Neptime MCP server in PolicyLayer and add a rule for neptime_rate_comment: 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 Neptime. Nothing to install.

What risk level is neptime_rate_comment? +

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

Can I rate-limit neptime_rate_comment? +

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

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

neptime_rate_comment is provided by the Neptime MCP server (neptime-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.