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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 v2.1.247

A Design credential missing the right scopes now says so

You'll notice
Useful3 Signal2
Design not in their notes

A Design credential lacking permissions now says so and tells you to run /design login.

/design login
What

When the Design API rejects a request with HTTP 403 and the body error: "needs_design_scopes", Claude Code now reports that the stored credential lacks Design permissions and tells you to run /design login, rather than showing a generic authentication failure.

Details
  • Raised as a distinct error carrying the code design_tool_needs_design_scopes.
  • Non-interactive sessions get a longer message explaining that a CI runner has to reuse a login stored earlier.
  • The MCP side of Design got a matching 403 message pointing at /design-login.
  • Applies to every 403 with that body; no flag involved.
Evidence

design_tool_needs_design_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 v2.1.247 →