set_privacy_settings · Tg MCP: Risk & Policy

WHAT IT DOES

What set_privacy_settings does on Tgmcp

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

WHY IT NEEDS A POLICY

Why set_privacy_settings needs a policy

This tool modifies user account privacy preferences rather than deleting or destroying data, placing it in Write category. Severity is high because privacy settings control sensitive visibility of personal information (last seen status, phone number exposure), and misconfiguration by an AI agent could significantly expose the user's private data or compromise account security.

From the tool's definition Tool enables modification of privacy settings (e.g., 'last seen, phone, etc.'), which creates or modifies user account configuration data reversibly through set_privacy_settings.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_privacy_settings Rate-limited

set_privacy_settings 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": {
    "set_privacy_settings": {
      "limits": [
        {
          "counter": "set_privacy_settings_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 Tgmcp, so you can run agents against it safely.

FAQ

Questions about set_privacy_settings

What does the set_privacy_settings tool do? +

Set privacy settings (e.g., last seen, phone, etc.). It is categorised as a Write tool in the Tgmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_privacy_settings? +

Register the Tg MCP server in PolicyLayer and add a rule for set_privacy_settings: 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 Tgmcp. Nothing to install.

What risk level is set_privacy_settings? +

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

Can I rate-limit set_privacy_settings? +

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

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

set_privacy_settings is provided by the Tg MCP server (oevortex/tgmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.