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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 v2.1.223

Projects scope expansion explains custom OAuth clients and save failures

You'll notice
Useful2 Signal0
Auth

Expanding Projects permissions now tells you up front when it cannot proceed or could not save credentials.

What

Expanding scopes for Projects now refuses up front in cases it cannot handle and gives a distinct reason when the refreshed credentials could not be stored.

Details
  • a login using a custom OAuth client is refused before any request is made
  • a save_failed reason is reported when the server has already consumed the old credentials but the new ones could not be persisted
  • the refresh call is passed an abort signal and a projects_scope_expansion telemetry context
  • success and failure of the expansion itself are now reported as telemetry
Evidence

The claude.ai login uses a custom OAuth client, which cannot be granted project scopes.

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 v2.1.223 →