Delete all messages in Trash or Junk folder. Only these two folders can be emptied. Requires TREKMAIL_ALLOW_DESTRUCTIVE=true.
AI agents call empty_folder to permanently remove resources in TrekMail MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently and irreversibly deletes all messages in specified folders (Trash or Junk). The deletion is bulk, non-recoverable, and the API explicitly requires a destructive operations flag, indicating the developers classified this as a high-risk irreversible operation. While scoped to two folders, the blast radius for an agent incorrectly targeting this tool is complete data loss within those folders.
From the tool's definition 'Delete all messages' with explicit destructive confirmation requirement 'Requires TREKMAIL_ALLOW_DESTRUCTIVE=true' and irreversible action on message data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Delete all messages in Trash or Junk folder. Only these two folders can be emptied. Requires TREKMAIL_ALLOW_DESTRUCTIVE=true. It is categorised as a Destructive tool in the TrekMail MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for empty_folder: 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 TrekMail MCP Server. Nothing to install.
empty_folder 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 empty_folder 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 empty_folder. 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.
empty_folder is provided by the TrekMail MCP Server MCP server (trekmail/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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