This record as markdown: /tools/mittwald-mcp-server/mittwald-ssh-user-delete.md
What mittwald_ssh_user_delete does on Mittwald MCP Server
AI agents call mittwald_ssh_user_delete to permanently remove resources in Mittwald MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why mittwald_ssh_user_delete is rated Critical
Deleting an SSH user is a destructive action that cannot be undone without manual restoration. It removes authentication credentials and access, potentially locking out legitimate operations. The blast radius is high because an agent could inadvertently lock out administrators or break application deployments that depend on SSH user access.
From the tool's definition Tool name contains 'delete' and description states 'Delete an SSH user' — this is an irreversible removal of a user account and associated SSH access credentials.
Attacks that exploit this kind of access
The rule that runs mittwald_ssh_user_delete safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mittwald MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mittwald_ssh_user_delete, this is the rule to start with:
mittwald_ssh_user_delete is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Mittwald MCP Server, apply this rule, and every mittwald_ssh_user_delete call is checked against it from then on.
Questions about mittwald_ssh_user_delete
Delete an SSH user. It is categorised as a Destructive tool in the Mittwald MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mittwald MCP Server MCP server in PolicyLayer and add a rule for mittwald_ssh_user_delete: 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 Mittwald MCP Server. Nothing to install.
mittwald_ssh_user_delete 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 mittwald_ssh_user_delete 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 mittwald_ssh_user_delete. 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.
mittwald_ssh_user_delete is provided by the Mittwald MCP Server MCP server (mittwald/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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