AG-UI ADK 0.9 hardens duplicate-turn handling and tool round trips
ag_ui_adk 0.9 persists a processed-message ledger in ADK session state to avoid duplicate turns across replicas and fixes frontend-tool round trips under optimistic concurrency.
Event Source published Indexed Verified
Why it matters
Generative UI depends on reliable interaction state; duplicated turns or failed tool callbacks can corrupt what users see.
A closer look
The ledger travels through Runner.run_async state_delta with incremental markers. RUN_STARTED now requires protocolVersion and state changes use typed JSON Patch operations.
Who this is for
AG-UI, Google ADK and frontend-tool integrators
Original sources
Revisions & corrections (1)
— Official signed GitHub release independently read; publication time and package version confirmed. The reliability changes materially affect stateful generative interfaces.