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Yiorgis Gozadinos 2025-11-11 16:05:19 +02:00
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# Changelog
## [Unreleased]
### Added
- **AG-UI Protocol Support**: Full AG-UI (Agent-UI) protocol implementation for graph execution with event streaming
- New `AGUIEmitter` class for emitting AG-UI events from graphs
- Support for all AG-UI event types: lifecycle events (`RUN_STARTED`, `RUN_FINISHED`, `RUN_ERROR`), step events (`STEP_STARTED`, `STEP_FINISHED`), state updates (`STATE_SNAPSHOT`), activity narration (`ACTIVITY_SNAPSHOT`), and text messages (`TEXT_MESSAGE_CHUNK`)
- `AGUIConsoleRenderer` for rendering AG-UI event streams to terminal with Rich formatting
- `stream_graph()` utility function for executing graphs with AG-UI event emission
- State diff computation for efficient state synchronization
- **AG-UI Server**: Starlette-based HTTP server for serving graphs via AG-UI protocol
- Server-Sent Events (SSE) streaming endpoint at `/v1/agent/stream`
- Health check endpoint at `/health`
- Full CORS support configurable via `agui` config section
- `create_agui_server()` function for programmatic server creation
- **Deep QA AG-UI Support**: Deep QA graph now fully supports AG-UI event streaming
- Integration with `AGUIEmitter` for progress tracking
- Step-by-step execution visibility via AG-UI events
- **CLI AG-UI Flag**: New `--agui` flag for `serve` command to start AG-UI server
- **Graph Module**: New unified `haiku.rag.graph` module containing all graph-related functionality
### Changed
- **BREAKING**: Major refactoring of graph-related code into unified `haiku.rag.graph` module structure:
- `haiku.rag.research` → `haiku.rag.graph.research`
- `haiku.rag.qa.deep` → `haiku.rag.graph.deep_qa`
- `haiku.rag.agui` → `haiku.rag.graph.agui`
- `haiku.rag.graph_common` → `haiku.rag.graph.common`
- **BREAKING**: Research and Deep QA graphs now use AG-UI event protocol instead of direct console logging
- Removed `console` and `stream` parameters from graph dependencies
- All progress updates now emit through `AGUIEmitter`
- **BREAKING**: `ResearchState` converted from dataclass to Pydantic `BaseModel` for JSON serialization and AG-UI compatibility
- Research and Deep QA graphs now emit detailed execution events for better observability
- CLI research command now uses AG-UI event rendering for `--verbose` output
- Improved graph execution visibility with step-by-step progress tracking
- Updated all documentation to reflect new import paths and AG-UI usage
- Updated examples (ag-ui-research, a2a-server) to use new import paths
### Fixed
- **Document Creation**: Optimized `create_document` to skip unnecessary DoclingDocument conversion when chunks are pre-provided
- **FileReader**: Error messages now include both original exception details and file path for easier debugging
### Removed
- **BREAKING**: Removed legacy `ResearchStream` and `ResearchStreamEvent` classes (replaced by AG-UI event protocol)
## [0.15.0] - 2025-11-07
### Added