AI agents call batch_export_sessions to retrieve information from Telegram MCP Complete without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool exports session strings (authentication tokens) for multiple Telegram accounts. While it is a read operation that doesn't modify data, the blast radius is high because session strings are equivalent to full account credentials — an attacker or misused AI could use exported sessions to hijack multiple accounts, making this a high-severity read operation.
From the tool's definition 批量导出多个账号的Session字符串 (Batch export Session strings for multiple accounts)
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access batch_export_sessions 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 batch_export_sessions:
{
"version": "1",
"default": "deny",
"tools": {
"batch_export_sessions": {}
}
}batch_export_sessions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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批量导出多个账号的Session字符串. It is categorised as a Read tool in the Telegram MCP Complete MCP Server, which means it retrieves data without modifying state.
Register the Telegram MCP Complete MCP server in PolicyLayer and add a rule for batch_export_sessions: 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.
batch_export_sessions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the batch_export_sessions 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 batch_export_sessions. 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.
batch_export_sessions 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.