Remove an extension
AI agents call db_drop_extension to permanently remove resources in Database MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes a database extension. Extension removal cannot be undone without reinstalling and potentially losing dependent objects, schema changes, or data. This fits the Destructive category (irreversibly deletes or overwrites data).
From the tool's definition Tool name contains 'drop' and description states 'Remove an extension'. The 'drop' operation in database contexts is irreversible deletion of database objects.
Attacks that exploit this kind of access
Remove an extension. It is categorised as a Destructive tool in the Database MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Database MCP Server MCP server in PolicyLayer and add a rule for db_drop_extension: 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 Database MCP Server. Nothing to install.
db_drop_extension 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 db_drop_extension 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 db_drop_extension. 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.
db_drop_extension is provided by the Database MCP Server MCP server (roilanrodriguez55/database-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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