Delete a matter by ID.
AI agents call delete_matter 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 directly deletes a matter record, which cannot be undone. In a law firm practice management context, deleting a matter removes all associated data and case information permanently. This is a destructive operation with significant blast radius—an AI agent misusing this could erase entire client matters, losing critical case history, documents, and billing records.
From the tool's definition delete_matter - Delete a matter by ID. The verb 'delete' indicates an irreversible removal operation.
Attacks that exploit this kind of access
Delete a matter 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_matter: 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_matter 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_matter 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_matter. 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_matter 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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