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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 v2.1.238

register_repo_root screens paths before it touches the disk

Under the hood
Useful2 Signal2
Permissions

Registering a repo root now screens odd Windows and network paths before touching disk.

What

The SDK control request that registers a repository root now expands and screens the target before any filesystem access, rejecting NT-namespace paths, UNC paths, automount locations and suspicious Windows spellings, then re-checks the resolved real path against trusted network directories.

Details
  • Rejections return a generic message to the caller while recording a specific internal reason per case.
  • Applies to every use of that control request on this build, with no flag.
Evidence

register_repo_root: NT-namespace path rejected before filesystem access

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.238 →