What
- The artifacts quickstart tool now advertises that, when possible, it saves the matched artifact type's published files (and, for slides or design intents, the default design system's files) to the session's scratchpad and lists them, rather than only reading titles, descriptions, and README text.
- The design-system/start-kit save path now returns more specific reasons when files aren't saved, such as "list the files yourself" or "read with your own calls" instead of a generic fallback, and separately tracks whether a REPL tool is available in the tool pool from whether start-kit mode itself is enabled.
Why These changes make it easier for Claude to reuse saved design-system files directly and to understand why a save didn't happen when it fails, instead of guessing.