- Fix all doc imports to use @copilotkit/runtime/v2 (symbols only
exported from v2 entry point)
- Replace v1 copilotRuntimeNextJSAppRouterEndpoint with v2 pattern
(CopilotRuntime + createCopilotEndpoint + InMemoryAgentRunner)
- Add warning callout on TanStack reasoning example (reasoning events
not surfaced by TanStack converter)
- Fix randomUUID imports in converters: use @copilotkit/shared instead
of Node.js crypto to match codebase convention
- Fix collectEvents timer leak in test-helpers.ts (add clearTimeout)
- Fix JSDoc/comments: convertInputToTanStackAI accurately describes
role allowlist, TanStackInputResult.messages comment updated
- Close TOCTOU window: set abortController synchronously before Observable
creation in classic run(), matching factory run() pattern (M3)
- Add concurrent run guard to classic run() (C1)
- Add threadId/runId to RUN_ERROR events in classic mode (I2)
- Check both 'output' and 'result' property names in classic tool-result (C2/M2)
- Add try/catch around JSON.stringify in classic tool-result (I4/M2)
- Add undefined guards before emitting state snapshot/delta events (I3)
- Guard assignToolsToAgents against factory-mode agent configs (M1)
- Improve error handling in classic error case with proper fallback (C3)
- Improve TanStack converter TODO comment with known gap details (M5)
- Document @ts-expect-error on clone() middlewares access (S1)
- Add JSDoc to AgentFactoryContext.abortController (M4)
- Fix duplicate import and clean up react-router example
- Update docs AgentFactoryContext reference
Source fixes:
- Fix TOCTOU race in concurrent run guard — set abortController
synchronously before Observable creation, closing the window where
two run() calls could both pass the guard
- Add JSON.stringify try/catch in TanStack TOOL_CALL_RESULT handler
(matching existing aisdk.ts protection against circular refs)
- Use role allowlist (user/assistant/tool) instead of denylist in
convertInputToTanStackAI to exclude activity/reasoning roles
- Change error+abort handler from break to return in aisdk converter
to stop processing after error during abort
- Fix version-pinned comments (remove "AI SDK 5.0" reference)
Test fixes:
- Add timedOut flag to collectEventsIncludingErrors to distinguish
hung observables from normal completion
- Add clearTimeout on success/error to prevent timer leaks
- Remove timing-dependent setTimeout in concurrent run guard test
Docs fixes:
- Split imports: copilotRuntimeNextJSAppRouterEndpoint from
@copilotkit/runtime, Agent/converters from @copilotkit/runtime/v2
- Fix forwardedProps example: use CopilotKit properties prop
- Fix useCopilotChat → useCoAgent for state management reference
- Fix model syntax colon → slash (openai/gpt-4o)
Critical fixes:
- Guard concurrent run() calls — throw if agent is already running
- Check both "output" and "result" properties on AI SDK tool-result events
for compatibility with older AI SDK versions
- Handle undefined/missing error in AI SDK error events with proper
Error wrapping instead of throwing undefined
Important fixes:
- Add TOOL_CALL_RESULT handling to TanStack converter (was silently dropped)
- Include threadId and runId in RUN_ERROR events for run correlation
- Guard state tool events (STATE_SNAPSHOT/STATE_DELTA) against undefined
snapshot/delta fields before emitting
- Wrap JSON.stringify in tool-result with try/catch to handle circular refs
- Fix collectEventsIncludingErrors to distinguish error vs normal completion
Test coverage:
- Add tests for convertInputToTanStackAI (message filtering, tool call
mapping, context injection, state serialization)
- Add tests for state management tool results in AI SDK converter
- Add tests for async factory (Promise-returning) paths
- Add tests for tool-result property compatibility (output vs result)
- Add tests for error event handling edge cases
- Add tests for concurrent run guard and RUN_ERROR correlation fields
- Replace flaky setTimeout-based abort test with signal-based sync
Other:
- Add exhaustiveness check (default: never) in config type switch
- Document clone() @ts-expect-error coupling with AbstractAgent.middlewares
- Fix docs: remove incorrect "v6" version reference, fix wrong hook name
Alem Tuzlak