Returns all configured VMs with reachability status and watched service names. Call this first in any session to discover available infrastructure.

Returns systemd state, uptime, and last 5 log lines for a service on a VM. Use for a quick health check before requesting full logs.

Returns bounded journald logs for a service, filtered by severity level. Filtering and line-capping execute on the VM before transmission.

Returns the last N lines of a log file on a VM, with optional grep pattern. Both grep and line-capping execute on the VM before any data is transmitted.

Returns health metrics for a configured database: connection counts, waiting locks, and long-running query count.

Executes a caller-supplied SELECT statement against a configured database, bounded by row limit. Only SELECT is permitted.

Lists the tables of a configured database with their schema/namespace, in one bounded call — no column detail. Call this first to decide which tables are relevant before describing them. Set refresh=true to force a live re-read.

Describes one named table — its columns and types, primary key, and foreign-key relationships — scoped to just that table, so you can author a correct (possibly multi-table) query directly. Indexes and comments are not included. Set refresh=true to force a live re-read.

Returns service statuses and database health for a named VM in a single call. Call this first when diagnosing any VM-level issue. Unreachable services or databases are listed with an error note rather than failing the whole call.

Returns recent entries from the local audit log (oldest first).