send_dm · MCP-Twikit MCP: Risk & Policy

WHAT IT DOES

What send_dm does on MCP-Twikit

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

WHY IT NEEDS A POLICY

Why send_dm needs a policy

This tool creates new data (a direct message) with reversible effects - the message can be deleted or unsent. It is not a read operation (does not merely retrieve data), not destructive (the message can be undone), not financial, and not arbitrary code execution.

From the tool's definition Tool name 'send_dm' and description 'Send a direct message to a user' indicate creation of new content (a direct message) that modifies the state of the user's message inbox.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_dm Rate-limited

send_dm 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": {
    "send_dm": {
      "limits": [
        {
          "counter": "send_dm_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 MCP-Twikit, so you can run agents against it safely.

FAQ

Questions about send_dm

What does the send_dm tool do? +

Send a direct message to a user. It is categorised as a Write tool in the MCP-Twikit MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on send_dm? +

Register the MCP-Twikit MCP server in PolicyLayer and add a rule for send_dm: 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 MCP-Twikit. Nothing to install.

What risk level is send_dm? +

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

Can I rate-limit send_dm? +

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

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

send_dm is provided by the MCP-Twikit MCP server (zo-valentine/mcp-twikit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.