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v1.28.0

Elements

// April 17, 2026

Rich tool UI restored and
exported

This release restores the default rich tool-call rendering in the playground and exposes
from the public API so consumers can compose around it.

Features

  • Restore rich tool UI in tool calls #2221  - The MCP Apps integration had replaced the default tool UI for every tool call. Tool calls now delegate to the default
    , and the MCP App iframe is only appended when a tool has a UI resource binding. Elements now exports
    from its public API. (Author: @simplesagar )
Sagar Batchu
Sagar Batchu
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