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This pull request introduces a new Kotlin SDK for A2UI, providing core utilities for schema management, validation, and A2A protocol handling, along with a Kotlin implementation of the Rizzcharts sample agent. The review identifies a critical Kotlin version mismatch between the SDK and the sample project that causes build failures. Additionally, the agent's system prompt configuration incorrectly excludes the A2UI schema and examples, which are necessary for generating valid payloads. Further improvements suggested include using stable raw URLs for schema references and adding logging for JSON parsing failures in the A2A handler to improve debuggability.
jgindin
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Directly ported from the Python sample.
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Also had to downgrade KTor.
suyangw-g
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Apr 14, 2026
jonsharkey
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Apr 14, 2026
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Description
New Kotlin version of the rizzcharts sample using the Kotlin version of the A2UI SDK.
Pre-launch Checklist