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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 v2.1.224

Schemas rewritten onto internal helpers

Under the hood
Useful1 Signal1
Build

More schemas were rewritten onto short helpers for bundle size only.

What

A large set of schema definitions was rewritten from the builder style onto short internal helpers. Shapes are unchanged; this is bundling only.

Evidence

MCP tool execution result

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 v2.1.224 →