Archive an invoice in Sanka by invoice id or external reference. This is a soft delete; use permanent_delete_invoice only after explicit confirmation.
AI agents call 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.
While described as a 'soft delete' (technically preserving data), archiving an invoice is a destructive action that removes it from normal operational visibility and workflow. The tool irreversibly changes the state of a financial document, preventing further use in normal business processes. Combined with the financial domain (invoices), this presents a high-severity destructive risk.
From the tool's definition The tool description states it 'Archive an invoice in Sanka by invoice id or external reference' and explicitly mentions 'This is a soft delete; use permanent_delete_invoice only after explicit confirmation.' The terminology 'soft delete' and reference to a…
Attacks that exploit this kind of access
Archive an invoice in Sanka by invoice id or external reference. This is a soft delete; use permanent_delete_invoice only after explicit confirmation. 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 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.
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 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 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.
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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