telegram-get-reactions

THE RISK

Low Risk

Why telegram-get-reactions needs a policy

This tool only queries and retrieves existing reaction metadata from messages. It does not create, modify, delete, or execute any operations—it passively reads information already present on the Telegram platform. The low severity reflects that accessing reaction data poses minimal risk even if misused by an AI agent.

From the tool's definition Tool retrieves reaction data from a message: 'Get detailed reaction info for a message: which reactions, counts, and who reacted'.

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

POLICY

How to control telegram-get-reactions

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-reactions:

policy.json

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

telegram-get-reactions 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-reactions

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

Get detailed reaction info for a message: which reactions, counts, and who reacted (when visible). 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-reactions? +

Register the MCP-Telegram MCP server in PolicyLayer and add a rule for telegram-get-reactions: 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-reactions? +

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

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

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

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

telegram-get-reactions 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 →