Design auth error types moved, joined by a new precondition error and response shapes.
What's wrong with this entry?
The Claude Design authentication error types moved to the top level of the bundle with their wording and the design_tool_auth_401 code intact, joined there by a new precondition error and the response shapes for the project read, search, write, delete and info calls. Whether the consent and project-grant error types were re-declared elsewhere is not visible in this build.
design_tool_auth_401
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.
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v2.1.229
New /design skill drafts multi-artboard canvases as an Artifact, gated off
Both mention design
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v2.1.235
Claude Design state moved off module globals onto a per-session object
Both mention design
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v2.1.238
A
/designcommand that drafts a design on a canvas artifactBoth mention design