Include the artifact deep link in the inline widget result - #1505
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RhysSullivan
marked this pull request as ready for review
July 30, 2026 17:29
The inline result carried only code + artifactId; the deep link existed only on the no-apps fallback path. Clients can lose a rendered widget in ways the server never sees (a reopened transcript that skips the ui:// resource re-read shows raw JSON), and then the URL in the tool result is the model's only way to point the user back at the artifact. The text content mentions it too, so the model can relay it without parsing.
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Cloudflare previewTorn down — the PR is closed. |
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Why
The inline
create-artifact/show-artifactresult carried onlycode+artifactId; the web deep link existed only on the no-apps fallback path. But clients can lose a rendered widget in ways the server never sees — observed live: a reopened Claude Desktop transcript re-establishes the MCP session without ever re-readingui://executor/shell.html(noresources/readon the wire) and renders the stored structured content as raw JSON. When that happens the model has no way to point the user back at the artifact.What
deliverArtifactnow resolves the deep link up front and passes it into the inline result too:structuredContentgainsurlbesidecodeandartifactId(only when the host knows its web origin — stdio hosts with noartifactUrlare unchanged).The shell reads only
code/artifactIdfrom the payload, so the extra field is inert for rendering clients.Verification
artifactUrlis configured; existing inline test updated for the new field.packages/hosts/mcpsuite 170/170; typecheck, lint, format green.