Permanently delete an attachment from a Smartsheet sheet. This action is IRREVERSIBLE. Verify the attachment ID before proceeding. Args: - sheet_id (number): Sheet ID containing the attachment - attachment_id (number): Attachment ID to delete Returns: Deletion confirmation.
AI agents call smartsheet_delete_attachment to permanently remove resources in Smartsheet MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Permanent deletion of attachments that cannot be recovered constitutes an irreversible destructive action. While the blast radius is limited to a single attachment rather than bulk data, the irreversibility and explicit warning about verification requirements elevate this to Destructive rather than Write.
From the tool's definition Tool description explicitly states 'Permanently delete an attachment' and 'This action is IRREVERSIBLE.' The tool name 'smartsheet_delete_attachment' and parameters (sheet_id, attachment_id) confirm the destructive operation of removing data that cannot be…
Attacks that exploit this kind of access
Permanently delete an attachment from a Smartsheet sheet. This action is IRREVERSIBLE. Verify the attachment ID before proceeding. Args: - sheet_id (number): Sheet ID containing the attachment - attachment_id (number): Attachment ID to delete Returns: Deletion confirmation. It is categorised as a Destructive tool in the Smartsheet MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Smartsheet MCP Server MCP server in PolicyLayer and add a rule for smartsheet_delete_attachment: 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 Smartsheet MCP Server. Nothing to install.
smartsheet_delete_attachment 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 smartsheet_delete_attachment 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 smartsheet_delete_attachment. 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.
smartsheet_delete_attachment is provided by the Smartsheet MCP Server MCP server (prmbr42-bot/smartsheet-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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