Stop tailing logs: What’s the most difficult "silent failure" for you to catch?

Still tailing logs to find out why something broke? Same here - until recently.

As a solo dev, I've been obsessed with silent failures lately. The status page is green, but the actual data is broken. I've been building groovekit.io to automate the detective work so I don't have to grep through production logs every time a user reports a weird bug.

Which of these would save you the most time?

• API Schema Drift: Catching a JSON change before it breaks the frontend.

• Stalled Cron Jobs: Knowing a task stopped without checking worker logs.

• SSL/Domain Expiry: The "set it and forget it" peace of mind.

• Database Query Timeouts: Catching slow queries before users do.

Are you still tailing logs manually, or have you found a way to automate the "why" behind a failure? I'd love to hear from you!