AI agents use close_secret_chat to create or update resources in Telegram MCP Complete — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Telegram MCP Complete environment.
Closing a secret chat modifies communication state but does not permanently delete data or destroy records. It is a reversible action (new secret chats can be initiated with the same user), making it a Write operation rather than Destructive. The severity is medium because misuse could disrupt legitimate communications, but the blast radius is limited to chat state changes without data loss or financial impact.
From the tool's definition Tool name 'close_secret_chat' and description '关闭秘密聊天' (close secret chat) indicate termination of a chat session. This modifies the state of a chat relationship reversibly—the chat can be reopened or recreated, distinguishing it from irreversible deletion.
Documented attack patterns abuse exactly the kind of access close_secret_chat 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 close_secret_chat:
{
"version": "1",
"default": "deny",
"tools": {
"close_secret_chat": {
"limits": [
{
"counter": "close_secret_chat_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}close_secret_chat 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.
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关闭秘密聊天. It is categorised as a Write tool in the Telegram MCP Complete MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Telegram MCP Complete MCP server in PolicyLayer and add a rule for close_secret_chat: 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.
close_secret_chat is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the close_secret_chat 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 close_secret_chat. 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.
close_secret_chat 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.
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153 Telegram MCP Complete tools catalogued and risk-classified — across an index of 43,000+ MCP servers.