Delete a specific environment variable from a hosted app.
AI agents call vibekit_delete_env to permanently remove resources in Vibekit — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes configuration data (environment variables) from a hosted application. Deletion is irreversible and constitutes a destructive action. While the blast radius is limited to a single environment variable (not data or code), the inability to undo the action and potential for breaking app functionality if critical variables are deleted (database credentials, API keys, etc.) warrants 'high'…
From the tool's definition Tool name explicitly states 'delete_env' and description confirms it 'Delete[s] a specific environment variable from a hosted app.' Environment variables are configuration that cannot be easily recovered once deleted, and deletion is irreversible.
Attacks that exploit this kind of access
Delete a specific environment variable from a hosted app. It is categorised as a Destructive tool in the Vibekit MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Vibekit MCP server in PolicyLayer and add a rule for vibekit_delete_env: 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 Vibekit. Nothing to install.
vibekit_delete_env 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 vibekit_delete_env 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 vibekit_delete_env. 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.
vibekit_delete_env is provided by the Vibekit MCP server (vibekit-apps/vibekit-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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