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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.

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Claude Code v2.1.128

Background Session Recovery and Cleanup

Claude Code is better at recovering background sessions that stall, crash, or lose their supervisor connection.

Usage
claude attach <id>
claude respawn <id>
claude respawn --all
claude rm <id>
Details
  • attach now attempts to wake sessions that report ENOJOB, reconnects through a transient service when possible, and gives clearer messages when a session moved, exited, or cannot be reattached.
  • Startup stalls can now trigger an automatic worker restart before giving up.
  • respawn and rm now have explicit --help output.
  • rm keeps changed worktrees instead of blindly removing them when uncommitted changes are present.
Evidence

Background recovery messages (search for "Session not responding — restarting it…", "Usage: claude respawn <id>|--all", and "Worktree has uncommitted changes — kept at")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.128 →