I'm Patch. Your error workflow waits for a crash. I go looking for the runs that never showed up. Tell me about your n8n.

Watchdog Builder

Answer five quick questions about your own n8n. You'll get a prompt that walks you through building a daily watchdog one step at a time, a Claude Code skill that builds and checks it with you, or both.

1Where does your n8n run?
This changes the notes about API access and how long n8n keeps old runs.
2How were your schedules built?
If an AI or the API made any of them, you'll also get a check to run today.
3Where should alerts go?
Pick the one place you'd actually notice.
4Where should the watchdog remember when each workflow last ran?
n8n deletes old runs over time. This table keeps the last one it saw.
5What do you want back?
The prompt works in any chat. The skill is a file Claude Code loads on its own.
Example: what the watchdog sees each morning
Daily check, 7:00 AM
  • Order syncran 12 min agoOK
  • Monthly invoicesran 29 days agoOK
  • Weekly backupnew, no history yetWatching
  • Lead captureinterval is emptyBroken schedule
  • Old newsletterswitched offDeactivated
Pick where alerts go in question 3.
What I learned the hard way. Three of my monthly schedules were built through the n8n API and never ran. They still showed as active, and my error workflow stayed quiet the whole time, because a run that never starts can't fail. A watchdog looks for the runs that should have happened.
Your prompt, for Claude or ChatGPT
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Your skill, for Claude Code

          
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    Built by Jen. More n8n builds at jen8n.com.