policy_delete
AI agents call policy_delete to permanently remove resources in Awslabs Valkey — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Policy deletion cannot be undone and permanently removes access control configurations. Even without a description, the name 'policy_delete' clearly indicates a destructive operation that removes data/configurations. In AWS contexts, this typically means removing IAM policies or cache policies. The high severity reflects that policy deletion can immediately break application access and is difficult to recover from.
From the tool's definition Tool named 'policy_delete' with no description provided. The name explicitly indicates deletion of policies, which is an irreversible destructive action.
Attacks that exploit this kind of access
policy_delete. It is categorised as a Destructive tool in the Awslabs Valkey MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for policy_delete: 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 Awslabs Valkey. Nothing to install.
policy_delete 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 policy_delete 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 policy_delete. 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.
policy_delete is provided by the Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.