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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 v2.1.227

Large bundled skill and docs blocks moved, not deleted

Under the hood
Useful1 Signal1
Skills

Big skill and docs blocks that look deleted were only moved; nothing was dropped.

/run/batch
What

Several big text blocks that look removed in the diff, including the API reference docs, the artifact skills, the /run and /batch prompts and the MCP resource tool descriptions, still occur verbatim in this build. They were relocated within the bundle; no capability was dropped.

Evidence

Provide an instruction describing the batch change you want to make.

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 v2.1.227 →