Address code review findings across all three SDK variants:
- Shield asyncio.sleep(0.02) with asyncio.shield() so task cancellation
doesn't prevent returning the tool_call_id after dispatch
- Revert args validation to original permissiveness (JS: undefined-only
check, Python: no isinstance check) to avoid breaking existing callers
- Add upfront json.dumps() serializability check in Python variants
- Fix compensating TOOL_CALL_END double-emit by tracking dispatched_end
- Add compensating action_execution_end to CrewAI variant (queue_put is
non-atomic)
- Use exc_info=True in compensating-END error logging
- Export all exception types from copilotkit package root (__init__.py)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ContextVar-based ambient state + httpx event hook. Incoming
x-aimock-* headers from AG-UI requests are forwarded to outgoing
LLM API calls. Keys normalized to lowercase. Warning emitted when
install_httpx_hook receives an unrecognized client type.
Ran confirmed LangGraphAGUIAgent is the only relevant path going forward.
Removes LangGraphAgent, _StreamingStateExtractor, CopilotKitConfig, and
langgraph_default_merge_state from sdk-python (the AG-UI base class
provides this now). Also removes the use_function_call=True code path
from copilotkit_messages_to_langchain (no callers, function_call format
is obsolete).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Maxim