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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 v2.1.238

Auto-react gains a paused state and per-session ledger

You'll notice
Useful3 Signal3
Artifacts

Resuming a session no longer re-reacts to artifact comments it already handled, and auto-react can be paused.

What

Automatic reactions to comments on artifacts can now report a third status, "paused", alongside "stopped" and "armed", and each session keeps a running record of what it has already reacted to. That record is saved with the session and restored when you resume, so resuming no longer re-reacts to comments handled before.

Details
  • The per-session record is stored as artifactAutoReactLedger, cleared when session state is stripped, and handed back on resume as resumedArtifactAutoReactLedger.
  • A matching artifactAutoReactLedgers collection is saved and restored everywhere session state is serialised, next to the existing artifact comment monitors.
  • Stopping or resuming now also clears two other pieces of leftover state: swept orphan slugs and a pending resume disclosure.
  • The notice shown when auto-react arms is now decided by whether the last outcome was degraded, rather than by whether the user had previously disarmed it.
  • The session file writer also gained a materialisation event and a field used to repair a truncated tail on the session file.
Evidence

artifactAutoReactLedger, artifactAutoReactLedgers

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

See this entry in the whole of v2.1.238 →