Send a typing/upload indicator to a Telegram chat (or cancel it)
AI agents use telegram-send-typing to create or update resources in MCP-Telegram — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP-Telegram environment.
This tool modifies chat state by injecting typing/upload indicators into conversations. Although the effect is temporary and reversible, it constitutes a Write action because it changes the chat's perceived state. The severity is medium because misuse could be used for social engineering (creating false impressions of activity), phishing, or harassment through repeated fake typing indicators.
From the tool's definition The tool 'telegram-send-typing' sends a typing or upload indicator to a Telegram chat, modifying the state of a chat by adding a transient indicator.
Documented attack patterns abuse exactly the kind of access telegram-send-typing gives an agent:
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-send-typing:
{
"version": "1",
"default": "deny",
"tools": {
"telegram-send-typing": {
"limits": [
{
"counter": "telegram-send-typing_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
} telegram-send-typing 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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Send a typing/upload indicator to a Telegram chat (or cancel it). It is categorised as a Write tool in the MCP-Telegram MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP-Telegram MCP server in PolicyLayer and add a rule for telegram-send-typing: 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.
telegram-send-typing 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 telegram-send-typing 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 telegram-send-typing. 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.
telegram-send-typing 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.
Start from MCP-Telegram, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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181 MCP-Telegram tools catalogued and risk-classified — across an index of 43,000+ MCP servers.