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AlemTuzlak
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Apr 20, 2026
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This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.
Releases
@tanstack/[email protected]
Minor Changes
StreamChunknow re-uses@ag-ui/core'sEventTypeenum and event shapes directly. Practical changes: (#474)RunErrorEventis flat ({ message, code }at the top level) instead of nested undererror: {...}.TOOL_CALL_START/TOOL_CALL_ENDevents exposetoolCallName(the deprecatedtoolNamealias is retained as a passthrough for now).REASONING_*events (REASONING_START,REASONING_MESSAGE_START,REASONING_MESSAGE_CONTENT,REASONING_MESSAGE_END,REASONING_END) alongside the legacySTEP_*events; consumers rendering thinking content should migrate to theREASONING_*channel.TOOL_CALL_RESULTevents are emitted after tool execution in the agent loop.stripToSpecMiddleware(always injected last) removes non-spec fields (model,content,args,finishReason,usage,toolName,stepId, …) from events before they reach consumers. Internal state management sees the full un-stripped chunks.ChatOptionsgained optionalthreadIdandrunIdfor AG-UI run correlation; they flow through toRUN_STARTED/RUN_FINISHED.StateDeltaEvent.deltais now a JSON Patchany[]per the AG-UI spec.Patch Changes
12d43e5]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
Thread
@tanstack/ai's AG-UI-compliant event shapes through the headless chat client: handle flatRUN_ERRORpayloads, consumeREASONING_*events, and warn when receiving the deprecated[DONE]sentinel. (#474)fix(ai-client): add
@standard-schema/specto devDependencies so the type references@tanstack/aiforwards throughInferToolInput/InferToolOutputresolve at build time. Types-only dep with no runtime cost; prevents tool-definition input/output inference from silently collapsing tounknownfor consumers ofuseChat/ChatClient. (#428)Updated dependencies [
12d43e5,12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
Update the devtools middleware to match
@tanstack/ai's AG-UI-compliant event shapes so emitted instrumentation remains accurate after the strip-to-spec pass. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
Align stream output with
@tanstack/ai's AG-UI-compliant event shapes: emitREASONING_*events alongsideSTEP_*, threadthreadId/runIdthroughRUN_STARTED/RUN_FINISHED, and return flatRunErrorEventshape. Cast raw events through an internalasChunkhelper so they line up with the re-exported@ag-ui/coreEventTypeenum. No changes to adapter factory signatures or config shapes. (#474)Updated dependencies [
12d43e5]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
@tanstack/[email protected]
Patch Changes
[email protected]
Patch Changes
12d43e5,12d43e5,12d43e5,1d6f3be]:[email protected]
Patch Changes
12d43e5,12d43e5,12d43e5,1d6f3be]:[email protected]
Patch Changes
12d43e5,1d6f3be]:@tanstack/[email protected]
Patch Changes
12d43e5,12d43e5]: