Realtime Gateway — Reliability Playground live monitor →

Panel A publishes a sequenced burst into a document_* room; Panel B receives it. Toggle Chaos to drop B mid-burst and watch catch-up replay heal the gap. The missing counter must end at 0.

channel burst size chaos drop (ms)

Panel A offline

id: – published: 0

Panel B offline

received: 0 highest n: 0 missing: 0 dupes: 0

Backend→client fanout reliability (generation/comments/external channels) uses the same path; exercise it with bun run publish-flood -- <channel> <rate> and watch /metrics + the admin UI. Open this page in two browser tabs to see cross-worker delivery when running multiple replicas.