telegram-get-unread

THE RISK

Low Risk

Why telegram-get-unread needs a policy

This tool retrieves metadata about unread message status across chats. While it is a read operation (no data modification), the severity is elevated to medium because: (1) it operates on a userbot with full access to the user's personal Telegram account, giving access to all private conversations and message history; (2) an adversarial agent could use this to identify active conversations and targets for further…

From the tool's definition Tool name 'telegram-get-unread' and description 'Get chats with unread messages' indicate data retrieval with no modification or side effects.

Documented attack patterns abuse exactly the kind of access telegram-get-unread gives an agent:

POLICY

How to control telegram-get-unread

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "telegram-get-unread": {}
  }
}

telegram-get-unread 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 MCP-Telegram — 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

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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 telegram-get-unread

What does the telegram-get-unread tool do? +

Get chats with unread messages. Forums show per-topic unread breakdown. It is categorised as a Read tool in the MCP-Telegram MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on telegram-get-unread? +

Register the MCP-Telegram MCP server in PolicyLayer and add a rule for telegram-get-unread: 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-Telegram. Nothing to install.

What risk level is telegram-get-unread? +

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

Can I rate-limit telegram-get-unread? +

Yes. Add a rate_limit block to the telegram-get-unread 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 telegram-get-unread completely? +

Set action: deny in the PolicyLayer policy for telegram-get-unread. 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 telegram-get-unread? +

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

Enforce policy on every MCP-Telegram tool call.

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

CHECK YOUR STACK →