Connect to a remote server via SSH. Pass profile or host with a Host alias from ~/.ssh/config, or provide host/username/key directly.

List active SSH connections and Host entries from ~/.ssh/config. Call this when the user mentions a server by name (e.g. "beta server") to find the right connectionId.

Read and return the contents of a file on a remote server. Use this when the user asks to explain, analyze, review, or show a file from a server. Requires an active SSH connection.

Execute a read-only or safe command on the remote server. Destructive commands are blocked (rm, mv, chmod, systemctl, kill, firewall tools, SQL DROP/DELETE/ALTER/TRUNCATE, and similar). Use ssh_read_file to read files instead of cat.

Upload a file to the remote server

Download a file from the remote server to a local path

List files in a directory on the remote server

Close an SSH connection

Control Nginx web server on Ubuntu

Update system packages on Ubuntu

Manage SSL certificates using Let's Encrypt on Ubuntu

Deploy website files and create backups on Ubuntu

Manage Ubuntu Uncomplicated Firewall (UFW)