What you will learn What to hand to a schedule, and what you have to design differently when nobody is watching.
It starts a task or runs a command at a set time.
Typical cases:
| Cadence | Example |
|---|---|
| Every morning | collect and summarise yesterday's errors from the logs |
| Every night | clean up temp files, back up |
| Every Monday | summarise last week's commits into a weekly report draft |
| The 1st of each month | tally usage, check for dependency updates |
What they share is being work someone has to remember. You hand that to the clock.
On the new-task screen, enable Schedule and a cadence picker appears.
| Available cadences | Example |
|---|---|
| Minutes | every 10 minutes |
| Hours | every 3 hours |
| Daily | 9am daily (the default) |
| Weekdays only | Mon–Fri at 9am |
| Weekly | Mondays at 9am |
| Monthly | the 1st at 9am |
For a cadence not in the list, switch to manual entry and write a cron
expression directly (0 9 * * * form). The default is 0 9 * * * — 9am daily.
Tasks created by a schedule accumulate as a separate task per run. Without a name of their own they inherit the schedule's name, so give the schedule a name if you want to tell them apart in the list.
This is the heart of the chapter. A scheduled run happens when nobody is looking. So it has to be designed differently from ordinary work.
Doing nothing beats producing a wrong result. With nobody watching, wrong results harden in place.
Checking the data refresh cadence in Phase 2 assessment is used directly here.
Autonomy levels said to use "fully automatic" for verified, repeated work. A scheduled run is repeated work, but it is not verified at the start.
A result nobody looks at is the same as no result.
As schedules multiply they need managing.
| Check | Why |
|---|---|
| When did this schedule last succeed | it may be failing quietly |
| Is this schedule still needed | schedules whose purpose is gone keep running |
| How much does it cost | daily runs accumulate |
The second is common. The project finished but its schedule keeps running.
Scheduled runs happen every day. Even a small per-run cost accumulates.
Not large, but ten schedules is different. As with model routing, use a light model for simple repetition.
The most common. Fail quietly and you discover it weeks later as "hey, that stopped coming." Make it report failures too.
You build it and forget it. For the first week or two, check the result daily. After that you can let go.
If the computer is off, the schedule does not run. Schedules only mean something when background execution or a startup item is set up.
1. Why must you always write down "what happens on failure" for a scheduled run?
Because nobody is watching. A wrong result hardens in place. Doing nothing and reporting the failure beats producing a wrong result.
2. Why not set a scheduled run to "fully automatic" from the start?
Because although it is repeated work, it is not verified at the start. Climb plan only → auto-approve file edits → fully automatic, checking for a few days at each step.
3. What is the most common problem once schedules accumulate?
Schedules whose purpose is gone keep running. The project ended but the schedule remains, spending money daily.
Now make it reachable from outside → Access from anywhere
✗ "Every morning, summarise yesterday's sales and tell me"✓ "At 8am daily, summarise yesterday's sales and tell me. If the data lookup fails, don't summarise — tell me it failed. Do not estimate or fill in blanks."✓ "Sales data refreshes via a 6am batch. If it hasn't refreshed, wait 30 minutes and check again, and if it's still missing, tell me."Week 1: schedule it as plan only → read the plan dailyWeek 2: auto-approve file editsAfter: fully automatic (the default) once stable□ leave it on screen only → likely nobody looks□ receive it as a notification → checkable on a phone□ write it to a file → reviewable later$0.10 per run × daily × 30 days = $3/month$0.50 per run × daily × 30 days = $15/month