Your Raspberry Pi is sitting at home doing something useful — logging sensor data, driving a relay, running a home assistant script. You're out. You want to check on it.

You used to SSH in from your laptop. Today you just open Telegram and ask.

You: is the temperature sensor still working?

Agent: ✓ ran: cat /sys/bus/w1/devices/28-*/w1_slave

Current temperature: 24.3°C — sensor is responding normally.