How to Monitor CrewAI Agents in Production

If you're running CrewAI crews in production, you've probably hit this: your cron job exits with code 0, but the crew didn't actually finish its work. The researcher agent got stuck retrying a rate-limited API, the analyst never received input, and nobody noticed until Friday. Multi-agent orchestration frameworks like CrewAI fail differently from traditional services. A crew can fail without crashing. Here's how to catch those failures with heartbeat monitoring - in about 3 lines of code.