create_announcement · Topgg MCP: Risk & Policy

WHAT IT DOES

What create_announcement does on Topgg

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

WHY IT NEEDS A POLICY

Why create_announcement needs a policy

The tool creates new announcement data for a Top.gg project listing, which is a reversible modification (announcements can typically be edited or deleted). This is a Write operation rather than Destructive since announcements are not irreversibly deleted, and the blast radius is medium—misuse could spam announcements or mislead users about bot/server updates, but the impact is limited to announcement content…

From the tool's definition Tool description states 'Create an announcement' which is a write operation that modifies project state by adding new content. The rate-limiting (one per 4 hours) confirms it creates persistent changes.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_announcement Rate-limited

create_announcement 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_announcement": {
      "limits": [
        {
          "counter": "create_announcement_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 Topgg, so you can run agents against it safely.

FAQ

Questions about create_announcement

What does the create_announcement tool do? +

Create an announcement for the current Top.gg project. Rate-limited to one announcement per 4 hours. It is categorised as a Write tool in the Topgg 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_announcement? +

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

What risk level is create_announcement? +

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

Can I rate-limit create_announcement? +

Yes. Add a rate_limit block to the create_announcement 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_announcement completely? +

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

create_announcement is provided by the Topgg MCP server (paillat-dev/topgg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.