Delete a PostgreSQL role and its associated secret.
AI agents call delete_postgres_role to permanently remove resources in CloudNativePG MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a PostgreSQL role is an irreversible operation that removes user accounts and access credentials from the database. This cannot be undone without manual restoration and causes loss of authentication state. The deletion of associated secrets adds credential loss to the impact.
From the tool's definition Tool name 'delete_postgres_role' combined with description 'Delete a PostgreSQL role and its associated secret' explicitly indicates irreversible deletion of database objects and authentication credentials.
Attacks that exploit this kind of access
Delete a PostgreSQL role and its associated secret. It is categorised as a Destructive tool in the CloudNativePG MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the CloudNativePG MCP Server MCP server in PolicyLayer and add a rule for delete_postgres_role: 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 CloudNativePG MCP Server. Nothing to install.
delete_postgres_role 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_postgres_role 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_postgres_role. 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_postgres_role is provided by the CloudNativePG MCP Server MCP server (wateim/cnpg-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.
Teams ship this data inside their own products. See what a licence covers →