Delete a memo by ID.
AI agents call delete_memo to permanently remove resources in Smokeball — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes data (a memo) and cannot be undone. Deletion is the canonical example of a Destructive action. In a law firm context, memos may contain important case notes, communications, or evidence, making accidental or malicious deletion high-severity. The tool operates on specific IDs, so the blast radius is somewhat contained but still significant.
From the tool's definition Tool name 'delete_memo' with description 'Delete a memo by ID' explicitly performs an irreversible deletion operation.
Attacks that exploit this kind of access
Delete a memo by ID. It is categorised as a Destructive tool in the Smokeball MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Smokeball MCP server in PolicyLayer and add a rule for delete_memo: 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 Smokeball. Nothing to install.
delete_memo 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_memo 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_memo. 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_memo is provided by the Smokeball MCP server (rosenadvertising/smokeball-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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