AG-UI 1.0 stabilizes events for subagents and user intervention
AG-UI published a stable specification and shared JSON Schema for its TypeScript, Python and .NET SDKs.
Event Source published Indexed Verified
Why it matters
A common interaction contract makes UI integrations less dependent on individual agent frameworks.
A closer look
Additions cover subagents, metadata, multimodal tool results, interrupts and token usage. Behavioral rules define event ordering and run completion.
Who this is for
Protocol implementers and application developers
Original sources
Revisions & corrections (1)
— Initial source-verified editorial collection