Permanently delete an already archived invoice in Sanka. Requires confirm=true and cannot be undone.
AI agents call permanent_delete_invoice to permanently remove resources in Sanka MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes financial records (invoices), which is the defining characteristic of the Destructive category. The requirement for confirm=true does not change the nature of the action. Severity is critical because deletion of invoice records can affect financial accounting, audit trails, and regulatory compliance, with potential consequences for business operations and legal obligations.
From the tool's definition Tool name is 'permanent_delete_invoice' with description stating 'Permanently delete an already archived invoice in Sanka' and 'cannot be undone.' The use of 'permanent_delete' and 'cannot be undone' explicitly indicates irreversible data destruction.
Attacks that exploit this kind of access
Permanently delete an already archived invoice in Sanka. Requires confirm=true and cannot be undone. It is categorised as a Destructive tool in the Sanka MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Sanka MCP Server MCP server in PolicyLayer and add a rule for permanent_delete_invoice: 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 Sanka MCP Server. Nothing to install.
permanent_delete_invoice 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 permanent_delete_invoice 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 permanent_delete_invoice. 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.
permanent_delete_invoice is provided by the Sanka MCP Server MCP server (sankahq/sanka-mcp). 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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