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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

Tool and config schemas rebuilt on internal builders

Under the hood
Useful1 Signal1
Build

More tool and config schemas moved onto internal builders with identical shapes.

What

Dozens of schema definitions were rewritten from the bundled validation library's object API onto short internal builders. Shapes and descriptions are unchanged, so nothing behaves differently.

Details
  • Covers object, strict object, string, array, enum, custom, boolean constructors and instance checks.
  • Descriptions are byte-identical, for example the MCP refresh tool's field still reads "Optional server name: refresh only this server. Omit to refresh all connected servers."
Evidence

Optional server name: refresh only this server. Omit to refresh all connected servers.

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 →