export_chat_invite · Claudegram MCP: Risk & Policy

WHAT IT DOES

What export_chat_invite does on Claudegram

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

WHY IT NEEDS A POLICY

Why export_chat_invite needs a policy

This tool creates invite links for Telegram chats/channels, which is a reversible modification of chat sharing configuration. It doesn't delete data (not Destructive), doesn't execute arbitrary code (not Execute), and doesn't involve financial transactions (not Financial). The ability to generate invite links could be misused to share access to private chats without owner consent, warranting medium severity.

From the tool's definition Tool name 'export_chat_invite' and description 'Создать invite-ссылку на чат/канал' (Create invite-link for chat/channel) indicates creation of shareable links that modify chat accessibility settings.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_chat_invite Rate-limited

export_chat_invite 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": {
    "export_chat_invite": {
      "limits": [
        {
          "counter": "export_chat_invite_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 Claudegram, so you can run agents against it safely.

FAQ

Questions about export_chat_invite

What does the export_chat_invite tool do? +

Создать invite-ссылку на чат/канал. It is categorised as a Write tool in the Claudegram MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_chat_invite? +

Register the Claudegram MCP server in PolicyLayer and add a rule for export_chat_invite: 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 Claudegram. Nothing to install.

What risk level is export_chat_invite? +

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

Can I rate-limit export_chat_invite? +

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

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

export_chat_invite is provided by the Claudegram MCP server (sanjar-x/claudegram). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.