AI agents call delete_chat_photo 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.
This tool irreversibly deletes the profile photo of a group or channel. Deletion of media/assets is a destructive action that cannot be undone, warranting the Destructive category. Severity is medium as it affects the visual identity of a group/channel but does not delete messages or members.
From the tool's definition delete_chat_photo — '删除群组/频道头像' means 'delete group/channel photo/avatar'
Documented attack patterns abuse exactly the kind of access delete_chat_photo 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 delete_chat_photo:
{
"version": "1",
"default": "deny",
"hide": [
"delete_chat_photo"
]
}delete_chat_photo disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
删除群组/频道头像. 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 delete_chat_photo: 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.
delete_chat_photo 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 delete_chat_photo 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 delete_chat_photo. 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.
delete_chat_photo 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.