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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 v2.1.236

Batch tool calls survive a history replay intact

You'll notice
Useful3 Signal2
Transcript

Batched tool calls now stay batched when a conversation is replayed.

What

The transcript now records the id and name of the original batch tool call whose contents were split into individual calls, so replaying a conversation reassembles the batch instead of sending the pieces separately. The field is hidden from display and never sent to the model.

Evidence

batch_tool_uses

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 v2.1.236 →