Delete a Database CRD (actual deletion depends on reclaim policy).
AI agents call delete_postgres_database 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.
This tool permanently removes a PostgreSQL database resource. While the reclaim policy may affect whether underlying data is also deleted, the tool itself is designed to irreversibly remove a database CRD from the Kubernetes cluster. This is a destructive operation that cannot be easily undone and results in data loss.
From the tool's definition Tool name contains 'delete' and description explicitly states 'Delete a Database CRD'. The phrase 'actual deletion depends on reclaim policy' indicates data loss is the intended outcome, though the extent depends on configuration.
Attacks that exploit this kind of access
Delete a Database CRD (actual deletion depends on reclaim policy). 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_database: 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_database 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_database 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_database. 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_database 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.
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