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Claude Is Merging Chat and Cowork Artifacts, and Existing Artifacts Break Until You Republish Them
A Cowork user reports all their artifacts broke and had to be republished on a new artifact platform: click share on the artifact, accept the Republish prompt, which yields a 'Local' version, and republish again when resharing. One artifact then works across both chat and Cowork, and the republish step appears to create the data bridges for MCP and connectors. The poster notes this is not in the release notes, which makes an undocumented breaking change the actionable part for anyone with artifacts in production.
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