Delete a comment from an expense.
AI agents call splitwise_delete_comment to permanently remove resources in Splitwise MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool performs an irreversible deletion operation. Although the blast radius is limited to a single comment rather than financial records or entire expenses, deletion cannot be undone and constitutes a destructive action. Severity is medium rather than high because comments are ancillary data compared to the financial impact of deleting expenses themselves, but the destructive nature of the operation is clear.
From the tool's definition Tool name contains 'delete' and description states 'Delete a comment from an expense' - this irreversibly removes data.
Attacks that exploit this kind of access
Delete a comment from an expense. It is categorised as a Destructive tool in the Splitwise MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Splitwise MCP Server MCP server in PolicyLayer and add a rule for splitwise_delete_comment: 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 Splitwise MCP Server. Nothing to install.
splitwise_delete_comment 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 splitwise_delete_comment 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 splitwise_delete_comment. 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.
splitwise_delete_comment is provided by the Splitwise MCP Server MCP server (svarun115/splitwise-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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