---
id: multi-user/agent-sessions-are-not-durable-and-it-is-one
title: "Agent sessions are not durable, and it is one property behind three symptoms"
theme: multi-user
status: open
created: 2026-08-20
date_source: assumed
order: 5
---

**Agent sessions are not durable, and it is one property behind three symptoms.** A sidecar restart
loses session identity, which is why `endTurnIfAgentIsGone` must skip sessions with no recorded
`userId`, why a stuck "generating" spinner survives until a reconnect, and why any crash in that process
is destructive rather than merely inconvenient. Fixing the three separately would miss that they are one
missing property. `docs/open-threads-after-per-user-claude.md` §2.