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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 v2.1.232

Claude told not to invent a pending subagent's result

You'll notice
Useful4 Signal3
Subagents

Claude no longer makes up results for background subagents that haven't finished yet.

What

Delegation guidance now says subagents run in the background, that a completion notification will arrive on its own, and that Claude must not fabricate or predict results. If you ask before the notification lands, it should say the agent is still running.

Details
  • Added to both the fork wording and the background-agent wording.
Evidence

Never fabricate or predict a pending agent's results \u2014 the notification is never something you write yourself; if the user asks before it arrives, say it's still running.

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 v2.1.232 →