Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.234 Home All releases olderv2.1.233 v2.1.235newer
Claude Code v2.1.234

/tui and /update refuse to restart when session state would be lost, and say what is holding them up

You'll notice
Useful4 Signal3
Slash Commands

/tui and /update now refuse to restart when it would lose session state, naming the exact blocker.

/tui/update
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.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.234 →