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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.309 ·

Artifact tools can be provided by an MCP server, with clearer errors when it is missing

When an MCP server takes over the built-in Artifact tools, unknown-tool errors point to it or suggest /mcp, and artifact links can be read through it

You'll notice New Features
JSON All of v2.1.309
You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
New FeaturesKind: in v2.1.309,
What probably matters to youSection of the release

Unclear It is not stated when the Artifact tools are replaced by the MCP server.

What

Artifacts are pages Claude can create and share. Claude Code can now have its built-in Artifact tools replaced by an MCP server, an outside program that supplies tools. When that happens:

  • If Claude tries to use an Artifact tool that is not there, the error points it to the matching tools on that server instead.
  • If that server is not connected, the error says the Artifacts tools are not available right now and suggests /mcp, the command that manages MCP server connections.
  • Reading a claude.ai artifact link can be sent to one of that server's tools.
Why

It shows that Artifact support is moving toward a separate server hosted by the desktop app.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not stated when the Artifact tools are replaced by the MCP server.

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