How are you orchestrating multi-agent AI workflows in production?

I've been building AI agent pipelines for the past year and curious how others handle it. Specifically:

- Do you use a framework (LangChain, CrewAI) or roll your own - How do you handle agent-to-agent data passing? - What does your observability look like for agent runs? - Are you running agents on cron/webhooks or manual-only?

Interested in hearing what's working and what's painful.