Delete a secret from the vault.
AI agents call vault_delete to permanently remove resources in Secret Vault MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool performs an irreversible operation that destroys stored secrets. Even though the secrets are stored locally and encrypted, deletion of a secret cannot be undone and represents a permanent loss of that credential/data. This fits the Destructive category (delete, drop, purge, force-push).
From the tool's definition Tool name is 'vault_delete' and description states 'Delete a secret from the vault.' The verb 'delete' indicates irreversible removal of data.
Attacks that exploit this kind of access
Delete a secret from the vault. It is categorised as a Destructive tool in the Secret Vault MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Secret Vault MCP Server MCP server in PolicyLayer and add a rule for vault_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 Secret Vault MCP Server. Nothing to install.
vault_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 vault_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 vault_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.
vault_delete is provided by the Secret Vault MCP Server MCP server (sam-ueckert/vault-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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