-- 20-20-20 rule: every 20 min look 20ft away for 20s.
jarvis.scheduler.remove("habit_eyes")
local ok, err = pcall(function()
    jarvis.scheduler.add({
        id = "habit_eyes",
        name = "20-20-20 eye rest",
        schedule = "every 20 minutes",
        action = { type = "speak", text = "Отвлекитесь от экрана на двадцать секунд." }
    })
end)
if not ok then
    jarvis.speak("Не получилось.")
    jarvis.audio.play_error()
    return { chain = false }
end
jarvis.speak("Включил правило двадцать двадцать двадцать.")
jarvis.audio.play_ok()
return { chain = false }