get-chat-member

THE RISK

Low Risk

Why get-chat-member needs a policy

This tool retrieves metadata about a chat member (likely user ID, role, permissions, join date, etc.) without creating, modifying, deleting, or executing any actions. It has no side effects on the chat, member, or bot state. Blast radius if misused is minimal—an AI agent querying member info poses low risk compared to write, execute, or destructive operations.

From the tool's definition Tool description states 'get information about a member of a chat' — a retrieval operation with no modification of state. Verb 'get' indicates query/read semantics. Supported by sibling tools following read patterns (get-chat, get-me, get-my-commands, etc.).

Documented attack patterns abuse exactly the kind of access get-chat-member gives an agent:

POLICY

How to control get-chat-member

PolicyLayer is an MCP gateway — it sits between your AI agents and Telegram Bot MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get-chat-member:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-chat-member": {}
  }
}

get-chat-member is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Telegram Bot MCP Server tools

Destructive kick-chat-member Kick a user from a group, a supergroup or a channel. Provides detailed error information i Write un-ban-chat-member Use this method to unban a previously banned user in a supergroup or channel. The user wil Write send-message Send message using a chat id. Automatically splits long messages that exceed Telegram Write send-photo Send photo with caption using a chat id. Automatically handles long captions that exceed T Write set-my-commands Use this method to change the list of the bot Write set-my-description Use this method to change the bot Write set-my-name Use this method to change the bot Write set-my-short-description Use this method to change the bot

All 16 Telegram Bot MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get-chat-member

What does the get-chat-member tool do? +

get information about a member of a chat. It is categorised as a Read tool in the Telegram Bot MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-chat-member? +

Register the Telegram Bot MCP Server MCP server in PolicyLayer and add a rule for get-chat-member: 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 Telegram Bot MCP Server. Nothing to install.

What risk level is get-chat-member? +

get-chat-member is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-chat-member? +

Yes. Add a rate_limit block to the get-chat-member 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 get-chat-member completely? +

Set action: deny in the PolicyLayer policy for get-chat-member. 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 get-chat-member? +

get-chat-member is provided by the Telegram Bot MCP Server MCP server (siavashdelkhosh81/telegram-bot-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Telegram Bot MCP Server tool call.

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

CHECK YOUR STACK →