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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.301 ·

Artifact tool: root dropped from its description and no longer blocks edits

The artifact tool description stops mentioning root, edits with root are no longer rejected, and MCP results note result_not_for_model

Group of 2 You'll notice Improvements
JSON All of v2.1.301
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.301,
ImprovementsSection of the release

What

The artifact tool saves and publishes files Claude produces. Two changes concern its root parameter, plus one note on MCP results.

  • With multiFileOn, the tool's description mentions only files, where before it mentioned files and root.
  • Combining edits with root is no longer an error. Only combining edits with files is still refused, since edits changes only the file at file_path.
  • The description of MCP tool results now says the content is processed normally unless the request set result_not_for_model.

Why

A publish request that uses edits together with root now goes through instead of failing.

See this entry in the whole of v2.1.301 →

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