You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Session HandoffArea: what it touches
ImprovementsKind: in v2.1.234,
What probably matters to youSection of the release
What
/update, /tui and the handoff to the desktop app now snapshot the conversation under a named handoff before restarting, so the transcript is carried across rather than picked up by chance. A restart that fails now says so inline instead of leaving the session in limbo.
Details
Handoffs are named "relaunch" and "desktop_handoff", and the storage handle is passed into the relaunch.
The message on failure begins "Couldn't restart Claude Code — ".
The plain-file half of this is active for everyone on this build; the storage-backed half only runs when the tengu_hover_rest flag is on, which it is not by default here.
Evidence
Couldn't restart Claude Code —
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.
This account: off · anonymous baseline: off · compiled default in v2.1.234: off
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed sinceAnthropic's documentation has since written up /tui, on Claude Code changelog.* Fixed `/tui` refusing to restart because of an agent-team teammate that had already finished its work and was no longer shown in the agents panelchangelogsee the edit
Added sinceA small documentation edit on Error reference touched a line naming /tui after this was published.These errors come from the `claude` command line and its subcommands, from a command name you submit at the prompt, and from commands such as `/security-review` that gather context by running shell commands before their prompt runs. They a…errorssee the edit
Confirmed sinceAnthropic's documentation has since written up /update, on Update Service Account.url: https://platform.claude.com/docs/en/api/beta/organization/service_accounts/updateapi/beta/organization/service_accounts/updatesee the edit
What has happened since
Flag reading movedThe flag server now returns off for tengu_hover_rest, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_hover_rest, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up /update, on Update Service Account.
Anthropic's release notes agreeFixed /tui dropping launch --allowed-tools/--disallowed-tools rules when it restarts; it now declines to switch, with the reason, when the…