Blockly: System

Where in the UI. Scripts tab toolbox.

Reminders, timers, display refresh, script log, evaluate expression.

Block id	Read as	Purpose
`containd_evaluate_expression`	evaluate expression	requires scripts.invoke
`containd_schedule_reminder`	schedule reminder	Creates a reminder and returns reminderId (string). Store it to update or delete later.
`containd_list_item_reminders`	list item reminders	List of reminderId strings for the current item.
`containd_list_item_reminders_on_item`	list item reminders on item	List of reminderId strings for that item. Returns [] when none. Requires notifications.read.
`containd_get_reminder`	get reminder	Loads ReminderView for an id. Plug into “reminder … property” to read title, wasFired, etc.
`containd_reminder_property`	reminder property	Read one field from a ReminderView (from “get reminder”).
`containd_update_reminder`	update reminder	Change an existing reminder. “unchanged” leaves that field alone (no value plug).
`containd_cancel_reminder`	cancel reminder	Cancels the OS notification and deletes the reminder by reminderId.
`containd_start_countdown_timer`	start countdown timer	Starts a countdown on an item.
`containd_start_stopwatch`	start stopwatch	Starts a stopwatch on an item (counts up).
`containd_get_timer`	get timer	Loads one timer’s live state (TimerView object).
`containd_list_item_timers`	list item timers	All timers on the item running this script.
`containd_list_item_timers_on_item`	list item timers on item	All timers on another item.
`containd_item_has_timer`	item has timer	Quick check for timers on the item running this script.
`containd_item_has_timer_on_item`	item has timer on item	Same as “this item has timer”, for another item.
`containd_timer_property`	timer property	Read one field from a TimerView (from get timer or list/for-each).
`containd_get_reminder_id_for_timer`	get reminder id for timer	Looks up the OS reminder linked when the countdown was started with create reminder = true.
`containd_get_timer_id_for_reminder`	get timer id for reminder	Reverse link: which timer created this reminder (if any).
`containd_pause_timer`	pause timer	Pauses a running countdown or stopwatch (chip/modal stay; time freezes).
`containd_resume_timer`	resume timer	Continues a paused countdown or stopwatch.
`containd_stop_timer`	stop timer	Stops and deletes the timer (UI closes). Also cancels a linked reminder if create reminder was used.
`containd_lap_stopwatch`	lap stopwatch	Records a lap on a running stopwatch (no-op / error on countdowns).
`containd_request_display_refresh`	request display refresh	callHost(requestDisplayRefresh)
`containd_log_script`	log script	callHost(logScript)