Deletes a memory by its ID.
AI agents call delete_memory to permanently remove resources in OmniHub — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly removes data (a memory record) from the system. Deletion cannot be undone and represents permanent data loss. While the blast radius is somewhat limited to individual memory records rather than entire databases, the irreversible nature of deletion and potential loss of important developer insights justifies the 'Destructive' category and 'high' severity.
From the tool's definition Tool name is 'delete_memory' and description states it 'Deletes a memory by its ID.' The verb 'deletes' is explicitly destructive.
Attacks that exploit this kind of access
Deletes a memory by its ID. It is categorised as a Destructive tool in the OmniHub MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the OmniHub MCP server in PolicyLayer and add a rule for delete_memory: 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 OmniHub. Nothing to install.
delete_memory 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_memory 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_memory. 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_memory is provided by the OmniHub MCP server (malharrrr/omnihub). 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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