What
The description Claude Code shows itself for the artifact-comments tool (used to add comments to an Artifact) now includes a new instruction: when the Artifact tool identifies a page as a Claude Doc, new comments should be left through that document's own connector tools instead, and Claude should search the available tools to find them.
Why
This routes commenting on Claude Docs through the document's native tooling rather than the generic artifact-comments mechanism, so comments end up in the right place for that document type.