You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Slash CommandsArea: what it touches
New FeaturesKind: in v2.1.234,
What probably matters to youSection of the release
What
Before relaunching, both commands check for state that cannot be reconstructed from a restart command line: permission rules that exist only for this session, ask rules with no command-line equivalent, added directories that cannot be spelled out, and a running auto-reply monitor for artifact comments. Instead of the old generic "busy" message, they name the specific blocker and tell you what to do about it. /tui saves your renderer preference but stays where it is; /update tells you to exit and start claude again yourself.
Details
When the blocker is uncarriable session state, the refusal explains it is holding back because there are permission rules a command line cannot carry intact.
When the blocker is the artifact comment monitor, /update refuses with "Can't restart while auto-replying to artifact comments" and /tui with "Cannot switch renderers while auto-replying to artifact comments", both pointing you at /tasks to stop it.
The "saved without restart" confirmations gained matching comment-monitor wording so the reason is visible there too.
The tengu_update_refused and tengu_tui_refused telemetry events gained fields for what was uncarriable, a comment_monitor field, a deferred field, and a count of active tasks in a field that previously held only a yes/no.
Evidence
permission rules a command line cannot carry intact, Can't restart while auto-replying to artifact comments
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
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
How sure we are
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…
