send_telegram_message · Telegram Bot MCP: Risk & Policy

WHAT IT DOES

What send_telegram_message does on Telegram Bot MCP

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

WHY IT NEEDS A POLICY

Why send_telegram_message needs a policy

This tool creates new data (Telegram messages) in a reversible manner—messages can be edited or deleted. It does not execute arbitrary code, delete data irreversibly, or move money. The severity is medium because misuse could enable spam, harassment, or social engineering through automated messaging, but the blast radius is limited to message content without access to underlying account controls or financial systems.

From the tool's definition Tool name 'send_telegram_message' and description 'Send a message to a Telegram chat' explicitly indicates message creation/transmission. The server description confirms it 'enables AI assistants to send messages and interact with Telegram chats.'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_telegram_message Rate-limited

send_telegram_message 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_telegram_message": {
      "limits": [
        {
          "counter": "send_telegram_message_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 Telegram Bot MCP, so you can run agents against it safely.

FAQ

Questions about send_telegram_message

What does the send_telegram_message tool do? +

Send a message to a Telegram chat using the simple send_message function. It is categorised as a Write tool in the Telegram Bot MCP 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_telegram_message? +

Register the Telegram Bot MCP server in PolicyLayer and add a rule for send_telegram_message: 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. Nothing to install.

What risk level is send_telegram_message? +

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

Can I rate-limit send_telegram_message? +

Yes. Add a rate_limit block to the send_telegram_message 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_telegram_message completely? +

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

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