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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 v2.1.239

Remote sessions keep watching an artifact for comments after they stop running

You'll notice
Useful4 Signal4
Artifacts

Remote sessions can keep a durable artifact watch that wakes them for republishes and comments.

What

Watching a published page for republishes and comments now has three states rather than on or off. In a remote session it is "durable": the artifact service holds the subscription and wakes the session for republishes and comments addressed to Claude. The old text telling the model that watching is not supported from a remote session is gone.

Details
  • Durable mode applies when CLAUDE_CODE_REMOTE is set; otherwise the mode is "live" or "none", and the local watch registration only happens under "live".
  • New guidance covers a comment thread whose resolve was not confirmed: retry once, and otherwise say so in a reply on the thread.
Evidence

durable wake subscription held by the artifact service

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

See this entry in the whole of v2.1.239 →