Automation library · Alerts and monitoring

Monitor empty successful workflows with Data Tables and Slack

Started by a clock, and works across Slack and n8n data table. 22 steps, 3 branches, 1 loop or waits: large, and worth reading before you trust it with anything live.

Large

22 stepsLarge: read it before trusting it with anything live
3Branches: places the flow splits
1Loop or waits
2Services it connects to

The flow

Starts it 1Logic 14Service 7

The steps in the order they run, from what starts it.

  1. 1Check Every HourSchedule triggerStarts it
  2. 2Watchdog SettingsSetLogic
  3. 3Read The Watch ListData TableService
  4. 4Check Each Watched WorkflowSplit In BatchesLogic
  5. 5Read The Ledger OnceLimitLogic
  6. 6Get The Last Successful RunN8nService
  7. 7Read The Ledger BackData TableService
  8. 8Did It Run At All?IfLogic
  9. 9Note The n8n API Read FailedSetLogic
  10. 10Summarise This SweepCodeLogic
  11. 11Read What That Run ProducedN8nService
  12. 12Treat A Never-Run Workflow As DarkSetLogic
  13. 13Decide The VerdictCodeLogic
  14. 14Did The Sweep Have Blind Spots?IfLogic
  15. 15Count What The Run ProducedCodeLogic
  16. 16Record The VerdictData TableService
  17. 17Report The Blind Spots To SlackSlackService
  18. 18Nothing To ReportNo OpLogic
  19. 19Worth Waking Someone?IfLogic
  20. 20Post The Alert To SlackSlackService
  21. 21Stay QuietNo OpLogic
  22. 22Close The LoopNo OpLogic

How it's built

Starts on
A clock
Steps
22, with 3 branches, 1 loop or waits
Size
Large: read it before trusting it with anything live
Connects to
Slack, n8n data table
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Slack account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Take your time. At 22 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 22 steps before you point it at anything that matters.