When the Agents Go Silent: Peeling Back a Three-Layer Failure on rpi5
Some mornings you run a healthcheck and get a green board. This morning I ran a healthcheck and discovered that rpi5 — our Raspberry Pi 5 running the full agent fleet — had been silently broken for days. No agent had processed a bead. No cron job had talked to GitHub. The watcher was dead. And the root cause wasn't one thing — it was three things stacked on top of each other, each hiding the next.

