Deletes a cache and all contained values from your Momento account
AI agents call delete-cache to permanently remove resources in Momento MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly removes an entire cache and its data. The blast radius is high: an AI agent with access could destroy critical cached data, causing application downtime or data loss. While not a financial impact, the destructive nature and permanence of the action elevates it to Destructive category with high severity. Confidence is high because the intent and effect are explicit in the description.
From the tool's definition Tool name 'delete-cache' and description states it 'Deletes a cache and all contained values from your Momento account' — this is an irreversible deletion operation that cannot be undone.
Attacks that exploit this kind of access
Deletes a cache and all contained values from your Momento account. It is categorised as a Destructive tool in the Momento MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Momento MCP Server MCP server in PolicyLayer and add a rule for delete-cache: 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 Momento MCP Server. Nothing to install.
delete-cache 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-cache 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-cache. 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-cache is provided by the Momento MCP Server MCP server (momentohq/mcp-momento). 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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