Under the hood
propose_skills and the internal ClaudeDesign tool were rebuilt on the same factory pattern as other tools
What
The propose_skills tool and an internal tool called ClaudeDesign now build their input validation, execution, and permission-check logic through a create() factory function, instead of defining those pieces directly on the tool. This matches a pattern already used elsewhere for other tools in this release.
Why
This is a structural change to how these tools are put together internally; it does not change what the tools do or how they behave for someone using Claude Code.