blockUsersDms · Xdevplatform/x MCP: Risk & Policy

WHAT IT DOES

What blockUsersDms does on Xdevplatform/xmcp

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

WHY IT NEEDS A POLICY

Why blockUsersDms needs a policy

This tool modifies a relationship/permission state by blocking a user from sending DMs. It is reversible (users can be unblocked), so it falls under Write rather than Destructive. Misuse could affect user communications and relationships.

From the tool's definition Block a user from sending direct messages to the authenticated user

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

blockUsersDms Rate-limited

blockUsersDms 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": {
    "blockUsersDms": {
      "limits": [
        {
          "counter": "blockusersdms_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 Xdevplatform/xmcp, so you can run agents against it safely.

FAQ

Questions about blockUsersDms

What does the blockUsersDms tool do? +

Block a user from sending direct messages to the authenticated user. It is categorised as a Write tool in the Xdevplatform/xmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on blockUsersDms? +

Register the Xdevplatform/x MCP server in PolicyLayer and add a rule for blockUsersDms: 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 Xdevplatform/xmcp. Nothing to install.

What risk level is blockUsersDms? +

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

Can I rate-limit blockUsersDms? +

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

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

blockUsersDms is provided by the Xdevplatform/x MCP server (xdevplatform/xmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

blockUsersDms is one line of Xdevplatform/x's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →