Delete a contact by email address (Sidemail API)
AI agents call delete-contact to permanently remove resources in Sidemail MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes contact records from the Sidemail system with no undo mechanism. While contacts can theoretically be recreated, the action cannot be reversed and represents loss of data. The high severity reflects that an AI agent could maliciously or mistakenly delete critical business contacts en masse. Confidence is high because the intent is unambiguous from the tool name and description.
From the tool's definition Tool name is 'delete-contact' and description states 'Delete a contact by email address'. The verb 'delete' combined with irreversible data removal justifies Destructive classification.
Attacks that exploit this kind of access
Delete a contact by email address (Sidemail API). It is categorised as a Destructive tool in the Sidemail MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Sidemail MCP Server MCP server in PolicyLayer and add a rule for delete-contact: 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 Sidemail MCP Server. Nothing to install.
delete-contact 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-contact 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-contact. 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-contact is provided by the Sidemail MCP Server MCP server (sidemail/sidemail-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
delete-contact is one line of Sidemail MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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