mastodon_report_remote

THE RISK

Medium Risk

Why mastodon_report_remote needs a policy

This tool creates a moderation report on a remote server, which is a write/create action. It is not destructive in the sense of deleting data, but it does have real-world consequences (flagging an account for moderation). The rate limiting (5/hour) suggests the server itself treats this as a meaningful but bounded action.

From the tool's definition File a moderation report to a remote server about an account

Documented attack patterns abuse exactly the kind of access mastodon_report_remote gives an agent:

POLICY

How to control mastodon_report_remote

PolicyLayer is an MCP gateway — it sits between your AI agents and Crow, and nothing reaches the server without passing your rules. This is the rule we recommend for mastodon_report_remote:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mastodon_report_remote": {
      "limits": [
        {
          "counter": "mastodon_report_remote_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

mastodon_report_remote 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.

Create a free account and register Crow — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about mastodon_report_remote

What does the mastodon_report_remote tool do? +

File a moderation report to a remote server about an account. Rate-limited: 5/hour. It is categorised as a Write tool in the Crow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mastodon_report_remote? +

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

What risk level is mastodon_report_remote? +

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

Can I rate-limit mastodon_report_remote? +

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

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

mastodon_report_remote is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →