Deletes an invoice via REST
AI agents call wave_delete_invoice to permanently remove resources in Waveapps — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting invoices is a destructive action that permanently removes financial records and cannot be undone. While not a direct financial transaction, it irreversibly destroys accounting data that may be legally required, affecting financial integrity and audit trails. This poses significant risk if an AI agent mistakenly deletes invoices due to misunderstanding or prompt injection.
From the tool's definition Tool name is 'wave_delete_invoice' and description states 'Deletes an invoice via REST'. The verb 'delete' combined with financial document destruction indicates an irreversible operation.
Attacks that exploit this kind of access
Deletes an invoice via REST. It is categorised as a Destructive tool in the Waveapps MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Waveapps MCP server in PolicyLayer and add a rule for wave_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 Waveapps. Nothing to install.
wave_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 wave_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 wave_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.
wave_delete_invoice is provided by the Waveapps MCP server (lunaparker/waveapps-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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