AI agents call terminate_session to permanently remove resources in Telegram MCP Complete — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Terminating a session is an irreversible operation — once a session is killed, the user/device is forcibly logged out and the session cannot be restored. This qualifies as Destructive. The blast radius is high because misuse could log out legitimate users or disrupt active connections across potentially multiple accounts on a multi-account Telegram management platform.
From the tool's definition terminate_session — '终止指定会话' means 'terminate the specified session', an irreversible action that ends an active session
Documented attack patterns abuse exactly the kind of access terminate_session gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Telegram MCP Complete, and nothing reaches the server without passing your rules. This is the rule we recommend for terminate_session:
{
"version": "1",
"default": "deny",
"hide": [
"terminate_session"
]
}terminate_session disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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终止指定会话. It is categorised as a Destructive tool in the Telegram MCP Complete MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Telegram MCP Complete MCP server in PolicyLayer and add a rule for terminate_session: 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 MCP Complete. Nothing to install.
terminate_session is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the terminate_session 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.
Set action: deny in the PolicyLayer policy for terminate_session. 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.
terminate_session is provided by the Telegram MCP Complete MCP server (you922/telegram-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Telegram MCP Complete, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
153 Telegram MCP Complete tools catalogued and risk-classified — across an index of 43,000+ MCP servers.