AI agents use send_media_group 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.
This tool sends media messages to Telegram chats. Sending messages is a Write operation (creates new data/content). It is not Destructive (messages can be deleted), not Execute (no arbitrary code execution), and not Financial. Severity is medium because misuse could spam users, flood channels, or send sensitive media to wrong recipients, but individual messages can be deleted and the effect is reversible.
From the tool's definition Tool name 'send_media_group' and description indicating sending media in album format ('发送媒体组（相册形式）' = 'Send media group (album format)'). The tool creates/posts new content (media messages) to Telegram, which is a reversible write operation.
Documented attack patterns abuse exactly the kind of access send_media_group 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 send_media_group:
{
"version": "1",
"default": "deny",
"tools": {
"send_media_group": {
"limits": [
{
"counter": "send_media_group_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}send_media_group 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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发送媒体组（相册形式）. 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 send_media_group: 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.
send_media_group 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 send_media_group 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 send_media_group. 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.
send_media_group 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.