Returns basic system information: hostname, OS, kernel version,
architecture, uptime, and CPU count.

Use this when investigating general system identity, checking OS version,
or assessing basic system health. Does not modify system state.

Returns disk usage for all mounted partitions: total, used, free in GB
and used percentage per mount point.

Use this when investigating low disk space, full partitions, or storage
issues. Does not modify system state.

Returns a list of running processes sorted by CPU usage, showing PID,
name, CPU%, memory%, and status. Limited to `limit` entries (max 200).

Use this when investigating which processes are consuming the most
resources. Does not modify system state.

Returns detailed information about a specific process: PID, parent PID,
name, status, user, CPU%, memory%, command line, and working directory.

Use this when investigating a specific process identified by list_processes
or other tools. Does not modify system state.

Returns the systemd status of a service: active state, sub-state,
whether enabled, and activation timestamp.

Use this when investigating whether a specific service is running,
failed, or misconfigured. Does not modify system state.

Lists the contents of a directory: file/directory names, types, and sizes.
Path must be within allowed roots (~/Projects, ~/Documents).

Use this when investigating directory contents, checking project structure,
or looking for specific files. Does not modify system state.

Returns metadata about a file or directory: path, size, type, modification
time, and permissions. Path must be within allowed roots.

Use this when investigating file properties, checking permissions, or
assessing file sizes. Does not modify system state.

Reads the text contents of a file (capped at 100KB). Path must be within
allowed roots (~/Projects, ~/Documents).

Use this when investigating file contents, checking configuration files,
or reading source code. Does not modify system state.

Returns the Git status of a repository: current branch, ahead/behind
counts, modified files, untracked files, and deleted files.
The repo path must be within allowed roots (~/Projects, ~/Documents).

Use this when investigating uncommitted changes, branch status, or
repository state. Does not modify system state.

Returns the most recent Git log entries: commit hash, author, date, and
message. Limited to max_entries (max 100). The repo path must be within
allowed roots.

Use this when investigating recent commits, looking for when a change was
made, or identifying who made modifications. Does not modify system state.