Add copilotkit.a2ui module with operation builders and prompt helpers,
fix SystemMessage ID reuse in before_agent to prevent LangGraph duplication,
add Pydantic model_dump serialization for app_context.
The re module was used in _fix_messages_for_bedrock (re.compile) but
never imported, causing NameError at runtime when the middleware is
invoked. Bumps version to 0.1.83.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add _fix_messages_for_bedrock() to handle three issues caused by
after_agent restoring frontend tool_calls to the checkpoint:
1. Strip unanswered tool_calls without matching ToolMessages (Bedrock
rejects toolUse without a corresponding toolResult)
2. Sync msg.content tool_use blocks with msg.tool_calls
3. Fix tool_use/tool_call blocks with string input/args (must be dict)
Avoid emitting spurious empty assistant messages for tool-call-only
AIMessages (common with OpenAI models where content is empty string).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
langchain_messages_to_copilotkit previously skipped creating the assistant
message when an AIMessage had tool_calls, causing missing context in chat
history on reconnect. Also adds ActionExecutionMessage type guard in
copilotkit_messages_to_langchain to prevent KeyError on non-tool messages
with parentMessageId.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fixes#2066
## Problem
`copilotkit_customize_config(config, emit_messages=False)` does not work -
TEXT_MESSAGE_* events are still emitted despite the configuration.
## Root Causes
1. **Metadata Reading Bug**: In `langgraph_agui_agent.py`, the code uses
`getattr(raw_event, 'metadata', {})` to read metadata, but `raw_event`
is a dict, not an object. This should use `.get()` instead.
2. **Encoder Crash Bug**: When the filtering logic works (after fixing bug #1),
it returns `""` (empty string) to skip dispatching events. However, this
empty string gets yielded to the event encoder which expects event objects
with `model_dump_json()` method, causing an `AttributeError`.
## Fixes
1. Changed metadata reading to handle both dict and object cases.
2. Changed return value from `""` to `None` for filtered events.
3. Added `run()` method override to filter out `None` values before yielding
to encoder.
Adds missing dict_repr() method to LangGraphAGUIAgent class to fix
AttributeError when SDK tries to serialize agent info.
The method was present in the parent LangGraphAgent class but not
overridden in LangGraphAGUIAgent, causing failures when calling
sdk.info() with AGUI agents in FastAPI integrations.
Fixes#2667
Markus Ecker