Delete an installed app. Requires confirm=True.
AI agents call delete_app to permanently remove resources in Truenas Ws — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes an installed app, which cannot be undone without reinstalling. This is a destructive operation with potentially significant impact on system functionality. The blast radius is high because deleting a critical app could disrupt services.
From the tool's definition Tool name 'delete_app' and description 'Delete an installed app' indicate irreversible removal of an installed application from TrueNAS.
Attacks that exploit this kind of access
Delete an installed app. Requires confirm=True. It is categorised as a Destructive tool in the Truenas Ws MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Truenas Ws MCP server in PolicyLayer and add a rule for delete_app: 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 Truenas Ws. Nothing to install.
delete_app 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_app 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_app. 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_app is provided by the Truenas Ws MCP server (thoriphes/truenas-ws-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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