Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.271 ·

MCP capability manifests now report renamed/merged server names, and warn if page code still references the old name

Artifact publishing now reports renamed MCP servers and warns about stale references to old names

TierYou'll noticehow much it should matter to you
Useful2my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaMCPwhat it touches
KindImprovementsin v2.1.271,
You'll notice

Artifact publishing now reports renamed MCP servers and warns about stale references to old names

What

When Claude Code parses MCP (Model Context Protocol, a way of connecting external tools/servers) capability manifests for artifact publishing, it can now merge duplicate manifest entries into one canonical connector and returns a renamed map showing old server names mapped to their new names. At publish time, Claude Code also checks the page's source code for any lingering references to the old server names and warns that calls using those old names will fail for viewers.

Why

This catches a class of bug where a published artifact still calls an MCP server by a name that no longer exists after a rename or merge, which would otherwise silently fail for people viewing the artifact.

See this entry in the whole of v2.1.271 →