delete_memory
Permanently delete a memory by ID. Use archive_memory instead for soft delete.
This record as markdown: /tools/0xrelogic-cognio/delete-memory.md
What delete_memory does on Cognio
AI agents call delete_memory to permanently remove resources in Cognio, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why delete_memory is rated Critical
This tool irreversibly deletes data (memory records) and cannot be undone. The description explicitly contrasts it with a reversible alternative (archive_memory), confirming permanent deletion semantics. An AI agent misusing this could erase important contextual information or user data without recovery.
From the tool's definition Tool name is 'delete_memory' and description states 'Permanently delete a memory by ID' with explicit acknowledgment that this is irreversible ('Use archive_memory instead for soft delete').
Attacks that exploit this kind of access
The rule that runs delete_memory safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Cognio, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete_memory, this is the rule to start with:
delete_memory is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Cognio, apply this rule, and every delete_memory call is checked against it from then on.
Questions about delete_memory
Permanently delete a memory by ID. Use archive_memory instead for soft delete. It is categorised as a Destructive tool in the Cognio MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Cognio 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 Cognio. 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 Cognio MCP server (0xrelogic/cognio). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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